TY - JOUR AU - Kovács, Nikoletta AU - Maász, Gábor AU - Galambos, Ildikó AU - Gerencsérné Berta, Renáta AU - Mihály, Judith AU - Csákiné Tombácz, Etelka TI - Glyphosate/AMPA adsorption on magnetite under different conditions: The effect of pH and electrolytes JF - JOURNAL OF MOLECULAR LIQUIDS J2 - J MOL LIQ VL - 393 PY - 2024 PG - 9 SN - 0167-7322 DO - 10.1016/j.molliq.2023.123674 UR - https://m2.mtmt.hu/api/publication/34410273 ID - 34410273 N1 - Soós Ernő Research and Development Center, University of Pannonia, H-8800 Nagykanizsa, Zrínyi u. 18., Hungary Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Research Network (HUN-REN), H-1117 Budapest, Magyar Tudósok körútja 2, Hungary Department of Chemistry, Eszterházy Károly Catholic University, H-3300 Eger, Leányka u. 6, Hungary Export Date: 18 February 2024 CODEN: JMLID Correspondence Address: Maász, G.; Soós Ernő Research and Development Center, H-8800 Nagykanizsa, Zrínyi u. 18., Hungary; email: maasz.gabor@pen.uni-pannon.hu Funding details: RRF-2.3.1-21-2022-00014 Funding details: Magyar Tudományos Akadémia, MTA, BO/000549/20/7, ÚNKP-22-5 Funding text 1: This research was supported by the National Multidisciplinary Laboratory for Climate Change (grant number RRF-2.3.1-21-2022-00014). GM was supported by the Bolyai Fellowship of the Hungarian Academy of Sciences (grant number BO/000549/20/7) and the (grant number ÚNKP-22-5) New National Excellence Program of The Ministry for Culture and Innovation from The Source of The National Research, Development and Innovation Fund. LA - English DB - MTMT ER - TY - JOUR AU - Dzeranov, A AU - Bondarenko, L AU - Pankratov, D AU - Dzhardimalieva, G AU - Jorobekova, S AU - Saman, D AU - Kydralieva, K TI - Impact of Silica-Modification and Oxidation on the Crystal Structure of Magnetite Nanoparticles JF - MAGNETOCHEMISTRY J2 - MAGNETOCHEMISTRY VL - 9 PY - 2023 IS - 1 SN - 2312-7481 DO - 10.3390/magnetochemistry9010018 UR - https://m2.mtmt.hu/api/publication/33712813 ID - 33712813 LA - English DB - MTMT ER - TY - JOUR AU - Bondarenko, L. AU - Terekhova, V. AU - Kahru, A. AU - Dzhardimalieva, G. AU - Kelbysheva, E. AU - Tropskaya, N. AU - Kydralieva, K. TI - Sample preparation considerations for surface and crystalline properties and ecotoxicity of bare and silica-coated magnetite nanoparticles JF - RSC ADVANCES J2 - RSC ADV VL - 11 PY - 2021 IS - 51 SP - 32227 EP - 32235 PG - 9 SN - 2046-2069 DO - 10.1039/d1ra05703k UR - https://m2.mtmt.hu/api/publication/32637991 ID - 32637991 N1 - Moscow Aviation Institute (National Research University), Moscow, Russian Federation Lomonosov Moscow State University, Moscow, 119991, Russian Federation National Institute of Chemical Physics and Biophysics, Tallinn, 12618, Estonia Institute of Problems of Chemical Physics Chernogolovka, Moscow Region, Russian Federation A. N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, Moscow, Russian Federation Sklifosovsky Institute for Emergency Medicine, Moscow, Russian Federation Export Date: 1 February 2022 CODEN: RSCAC Correspondence Address: Bondarenko, L.; Moscow Aviation Institute (National Research University)Russian Federation; email: l.s.bondarenko92@gmail.com AB - Magnetite (Fe3O4) nanoparticles (NPs) have widely used in various fields, including in medicine, due to their (super)paramagnetic properties. This requires a thorough evaluation of their possible hazardous effects. However, there is no standard procedure for the preparation of oxidation-prone NPs (such as magnetite) before subjecting them to biological assays. In this study we used Fe3O4 NPs (bare and silica-coated) as test samples to compare different preparation methods (ultrasound, centrifugation and filteration of NPs suspensions) based on X-ray and dynamic light scattering analysis and evaluation of microstructure and surface charge. After oxidation and functionalization, all samples retained their superparamagnetic behaviour. The toxicity of NP suspensions obtained by the methods described for Paramecium caudatum ciliates and Sinapis alba plants was evaluated. This journal is © The Royal Society of Chemistry. LA - English DB - MTMT ER - TY - JOUR AU - Bondarenko, Lyubov AU - Nyergesné Illés, Erzsébet AU - Csákiné Tombácz, Etelka AU - Dzhardimalieva, Gulzhian AU - Golubeva, Nina AU - Tushavina, Olga AU - Adachi, Yasuhisa AU - Kydralieva, Kamila TI - Fabrication, Microstructure and Colloidal Stability of Humic Acids Loaded Fe3O4/APTES Nanosorbents for Environmental Applications JF - NANOMATERIALS J2 - NANOMATERIALS-BASEL VL - 11 PY - 2021 IS - 6 SP - 1418 PG - 18 SN - 2079-4991 DO - 10.3390/nano11061418 UR - https://m2.mtmt.hu/api/publication/32121956 ID - 32121956 N1 - Engineering Department, Moscow Aviation Institute (National Research University), Moscow, 125993, Russian Federation Aerospace Department, Moscow Aviation Institute (National Research University), Moscow, 125993, Russian Federation Department of Food Engineering, University of Szeged, Szeged, H‐6720, Hungary Soós Ernő Water Technology Research and Development Center, University of Pannonia, Nagykanizsa, H‐8800, Hungary Laboratory of Metal Containing Polymers, Institute of Problems of Chemical Physics, Chernogolovka, 142432, Russian Federation Faculty of Life and Environmental Sciences, University of Tsukuba, Ibaraki, 305‐8577, Japan Cited By :4 Export Date: 18 November 2022 Correspondence Address: Bondarenko, L.; Engineering Department, Russian Federation; email: l.s.bondarenko92@gmail.com LA - English DB - MTMT ER - TY - JOUR AU - Chircov, C. AU - Bîrcă, A.C. AU - Grumezescu, A.M. AU - Vasile, B.S. AU - Oprea, O. AU - Nicoară, A.I. AU - Yang, C.-H. AU - Huang, K.-S. AU - Andronescu, E. TI - Synthesis of magnetite nanoparticles through a lab-on-chip device JF - MATERIALS J2 - MATERIALS VL - 14 PY - 2021 IS - 19 SN - 1996-1944 DO - 10.3390/ma14195906 UR - https://m2.mtmt.hu/api/publication/32637997 ID - 32637997 N1 - Department of Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, Bucharest, 011061, Romania Research Institute of the University of Bucharest—ICUB, University of Bucharest, Bucharest, 050657, Romania Academy of Romanian Scientists, 54 Spl. Independentei, Bucharest, 050045, Romania Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, University Politehnica of Bucharest, 1-7 Polizu St., Bucharest, 011061, Romania Department of Biological Science and Technology, I-Shou University, Kaohsiung, 824, Taiwan Pharmacy Department of E-Da Hospital, Kaohsiung, 824, Taiwan Taiwan Instrument Research Institute, National Applied Research Laboratories, Hsinchu, 300, Taiwan The School of Chinese Medicine for Post-Baccalaureate, I-Shou University, Kaohsiung, 840301, Taiwan Cited By :1 Export Date: 1 February 2022 Correspondence Address: Grumezescu, A.M.; Department of Science and Engineering of Oxide Materials and Nanomaterials, Romania; email: grumezescu@yahoo.com AB - Magnetite nanoparticles (MNPs) represent one of the most intensively studied types of iron oxide nanoparticles in various fields, including biomedicine, pharmaceutics, bioengineering, and industry. Since their properties in terms of size, shape, and surface charge significantly affects their efficiency towards the envisaged application, it is fundamentally important to develop a new synthesis route that allows for the control and modulation of the nanoparticle features. In this con-text, the aim of the present study was to develop a new method for the synthesis of MNPs. Specifi-cally, a microfluidic lab-on-chip (LoC) device was used to obtain MNPs with controlled properties. The study investigated the influence of iron precursor solution concentration and flowed onto the final properties of the nanomaterials. The synthesized MNPs were characterized in terms of size, morphology, structure, composition, and stability. Results proved the formation of magnetite as a single mineral phase. Moreover, the uniform spherical shape and narrow size distribution were demonstrated. Optimal characteristics regarding MNPs crystallinity, uniformity, and thermal stability were obtained at higher concentrations and lower flows. In this manner, the potential of the LoC device is a promising tool for the synthesis of nanomaterials by ensuring the necessary uniformity for all final applications. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. LA - English DB - MTMT ER - TY - JOUR AU - Dzhardimalieva, Gulzhian AU - Bondarenko, Lyubov AU - Nyergesné Illés, Erzsébet AU - Csákiné Tombácz, Etelka AU - Tropskaya, Nataliya AU - Magomedov, Igor AU - Orekhov, Alexander AU - Kydralieva, Kamila TI - Colloidal Stability of Silica-Modified Magnetite Nanoparticles: Comparison of Various Dispersion Techniques JF - NANOMATERIALS J2 - NANOMATERIALS-BASEL VL - 11 PY - 2021 IS - 12 SP - 3295 SN - 2079-4991 DO - 10.3390/nano11123295 UR - https://m2.mtmt.hu/api/publication/32531175 ID - 32531175 N1 - Department of General Engineering, Moscow Aviation Institute, National Research University, Moscow, 125299, Russian Federation Laboratory of Metal Polymers, Institute of Problems of Chemical Physics, Moscow Region, Chernogolovka, 142432, Russian Federation Department of Food Engineering, University of Szeged, Szeged, 6720, Hungary Soós Ernő Water Technology Research and Development Center, University of Pannonia, Nagykanizsa, 8800, Hungary Sklifosovsky Institute for Emergency Medicine, Moscow, 129090, Russian Federation Export Date: 1 February 2022 Correspondence Address: Kydralieva, K.; Department of General Engineering, Russian Federation; email: k_kamila@mail.ru LA - English DB - MTMT ER - TY - JOUR AU - Linnikov, O.D. TI - Regularities of Chromium(VI) Ions Sorption by Magnetite (Review) JF - PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES J2 - PROT MET PHYS CHEM+ VL - 57 PY - 2021 IS - 2 SP - 235 EP - 259 PG - 25 SN - 2070-2051 DO - 10.1134/S2070205121020064 UR - https://m2.mtmt.hu/api/publication/32245052 ID - 32245052 N1 - Export Date: 27 September 2021 Correspondence Address: Linnikov, O.D.; Institute of Solid State Chemistry, Russian Federation; email: linnikov@mail.ru LA - English DB - MTMT ER - TY - CHAP AU - Linnikov, O.D. TI - Removing of hexavalent chromium from polluted water solutions by magnetite: A review T2 - Advances in Chemistry Research. Volume 67 PB - Nova Science Publishers SN - 9781536193756 PY - 2021 SP - 13 EP - 67 PG - 55 UR - https://m2.mtmt.hu/api/publication/32245050 ID - 32245050 N1 - Export Date: 27 September 2021 Correspondence Address: Linnikov, O.D.; Institute of Solid State Chemistry, Russian Federation; email: linnikov@mail.ru LA - English DB - MTMT ER - TY - JOUR AU - Mohammadi, Mohammad-Reza AU - Ansari, Sajjad AU - Bahmaninia, Hamid AU - Ostadhassan, Mehdi AU - Norouzi-Apourvari, Saeid AU - Hemmati-Sarapardeh, Abdolhossein AU - Schaffie, Mahin AU - Ranjbar, Mohammad TI - Experimental Measurement and Equilibrium Modeling of Adsorption of Asphaltenes from Various Origins onto the Magnetite Surface under Static and Dynamic Conditions JF - ACS OMEGA J2 - ACS OMEGA VL - 6 PY - 2021 IS - 37 SP - 24256 EP - 24268 PG - 13 SN - 2470-1343 DO - 10.1021/acsomega.1c04224 UR - https://m2.mtmt.hu/api/publication/32881672 ID - 32881672 AB - Wettability alterations, permeability reduction of reservoir rocks, and oil production decline may occur as a consequence of asphaltene adsorption and deposition on the surfaces of oil reservoir rocks. Magnetite and other iron minerals are abundant in the rock composition of sandstone reservoirs and cause problems by precipitation and adsorption of polar components of crude oil. The main purpose of this study was to investigate the adsorption of six asphaltene samples of various origins onto the magnetite surface. Characterization of magnetite was performed by Brunauer-Emmett-Teller (BET), Fourier transform infrared spectroscopy (FTIR), and X-ray fluorescence (XRF). Also, FTIR, dynamic light scattering (DLS), and elemental analysis were performed to characterize asphaltenes. Static and dynamic adsorption experiments were carried out to investigate the effects of the water phase, adsorbent size, flow rate, and asphaltene compositions on asphaltene uptake by the magnetite. The results showed that an increase in the nitrogen content and aromatic nature of asphaltenes increased their adsorption on magnetite. The addition of water to the adsorption tests significantly reduced the adsorption amount of asphaltenes on the magnetite. A considerable decrease in asphaltene adsorption was observed with an increase in the flow rate in dynamic tests. This shows that higher flow rates reduce the interaction between adsorbed asphaltenes and asphaltene aggregates in the solution, which reduces the uptake of more asphaltenes. Moreover, adsorbed asphaltene components with a weaker bond are detached from the magnetite surface, which can be attributed to the physisorption of asphaltenes. Eventually, four well-known adsorption isotherm models, namely, Langmuir, Dubinin-Radushkevich, Temkin, and Freundlich were utilized to find the mechanisms of asphaltene adsorption onto the magnetite surface. The Freundlich model seems to provide better estimates for the adsorption of asphaltenes on the magnetite surface. The findings of this study render insights into the better management of oil production in formations with iron-containing rocks. LA - English DB - MTMT ER - TY - JOUR AU - Mohammed, I. AU - Al, Shehri D. AU - Mahmoud, M. AU - Kamal, M.S. AU - Alade, O.S. TI - Impact of Iron Minerals in Promoting Wettability Alterations in Reservoir Formations JF - ACS OMEGA J2 - ACS OMEGA VL - 6 PY - 2021 IS - 5 SP - 4022 EP - 4033 PG - 12 SN - 2470-1343 DO - 10.1021/acsomega.0c05954 UR - https://m2.mtmt.hu/api/publication/32245053 ID - 32245053 N1 - Petroleum Engineering Department, College of Petroleum Engineering and Geosciences, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia Center for Integrative Petroleum Research (CIPR), College of Petroleum Engineering and Geosciences, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia Cited By :3 Export Date: 27 September 2021 Correspondence Address: Al Shehri, D.; Petroleum Engineering Department, Saudi Arabia; email: alshehrida@kfupm.edu.sa Correspondence Address: Mahmoud, M.; Petroleum Engineering Department, Saudi Arabia; email: mmahmoud@kfupm.edu.sa LA - English DB - MTMT ER - TY - JOUR AU - Mohan, Sreelakshmi AU - Govindankutty, Gopika AU - Sathish, Asha AU - Kamaraj, Nithya TI - Spirulina platensis-capped mesoporous magnetic nanoparticles for the adsorptive removal of chromium JF - CANADIAN JOURNAL OF CHEMICAL ENGINEERING J2 - CAN J CHEM ENG VL - 99 PY - 2021 SP - 294 EP - 305 PG - 12 SN - 0008-4034 DO - 10.1002/cjce.23854 UR - https://m2.mtmt.hu/api/publication/31692969 ID - 31692969 N1 - Department of Sciences, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, Coimbatore, India Department of Chemical Engineering & Materials Science, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, Coimbatore, India Centre of Excellence in Advanced Materials & Green Technologies (CoE-AMGT), Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, Coimbatore, India Export Date: 18 August 2022 CODEN: CJCEA Correspondence Address: Kamaraj, N.; Department of Chemical Engineering & Materials Science, India; email: nithiamrita@gmail.com Correspondence Address: Kamaraj, N.; Centre of Excellence in Advanced Materials & Green Technologies (CoE-AMGT), India; email: nithiamrita@gmail.com AB - The magnetic nanoparticles prepared through the co-precipitation method were surface modified usingSpirulina platensis. The mesoporous and superparamagnetic nature of the adsorbent was confirmed by Brunauer-Emmett-Teller (BET) and vibrating sample magnetometer (VSM) analyses, respectively. Further, an increased specific surface area of 75.3 m(2)/g was reported in the BET studies. Parameters such as pH, contact time, concentration, and temperature were studied to optimize the operating conditions influencing adsorption. Thermodynamic studies justified the spontaneity and endothermic nature of adsorption. The adsorbent exhibited a better performance at 1.5 pH and 120 minutes of contact time. The monolayer adsorption capacity of the material was found to be 29.23 mg/g from the evaluation of Langmuir adsorption isotherm. The second- order kinetic studies suggest the predominance of chemisorption. Further, the X-ray photoelectron spectroscopy (XPS) studies confirmed that the adsorption mechanism is electrostatic attraction accompanied by reduction. Notably, a regeneration efficiency of 75.26% was achieved with NaOH as the desorbing agent. LA - English DB - MTMT ER - TY - JOUR AU - Bondarenko, Lyubov AU - Kahru, Anne AU - Terekhova, Vera AU - Dzhardimalieva, Gulzhian AU - Uchanov, Pavel AU - Kydralieva, Kamila TI - Effects of Humic Acids on the Ecotoxicity of Fe3O4 Nanoparticles and Fe-Ions: Impact of Oxidation and Aging JF - NANOMATERIALS J2 - NANOMATERIALS-BASEL VL - 10 PY - 2020 IS - 10 PG - 18 SN - 2079-4991 DO - 10.3390/nano10102011 UR - https://m2.mtmt.hu/api/publication/31692966 ID - 31692966 AB - The magnetite nanoparticles (MNPs) are increasingly produced and studied for various environmental applications, yet the information on their ecotoxicity is scarce. We evaluated the ecotoxicity of MNPs (similar to 7 nm) before and after the addition of humic acids (HAs). White mustard Sinapis alba and unicellular ciliates Paramecium caudatum were used as test species. The MNPs were modified by HAs and oxidized/aged under mild and harsh conditions. Bare MNPs proved not toxic to plants (96 h EC50 > 3300 mg/L) but the addition of HAs and mild oxidation increased their inhibitory effect, especially after harsh oxidation (96 h EC50 = 330 mg/L). Nevertheless, all these formulations could be ranked as 'not harmful' to S. alba (i.e., 96 h EC50 > 100 mg/L). The same tendency was observed for ciliates, but the respective EC50 values ranged from 'harmful' (24 h EC50 = 10-100 mg/L) to 'very toxic' (24 h EC50 < 1 mg/L). The ecotoxicity of Fe-ions with and without the addition of HAs was evaluated in parallel: Fe (II) and Fe (III) ions were toxic to S. alba (96 h EC50 = 35 and 60 mg/L, respectively) and even more toxic to ciliates (24 h EC50 = 1 and 3 mg/L, respectively). Addition of the HAs to Fe-ions yielded the respective complexes not harmful to plants (96h EC50 > 100 mg/L) but toxic to ciliates (24 h EC50 = 10-100 mg/L). These findings will be helpful for the understanding of the environmental fate and toxicity of iron-based NPs. LA - English DB - MTMT ER - TY - JOUR AU - Can, Ziya AU - Keskin, Busra AU - Arda, Aysem AU - Ercag, Erol AU - Apak, Mustafa Resat TI - Magnetite nanoparticles-based hydroxyl radical scavenging activity assay of antioxidants using N, N-dimethyl-p-phenylenediamine probe JF - TURKISH JOURNAL OF CHEMISTRY J2 - TURK J CHEM VL - 44 PY - 2020 IS - 5 SP - 1366 EP - 1375 PG - 10 SN - 1300-0527 DO - 10.3906/kim-2006-9 UR - https://m2.mtmt.hu/api/publication/31692967 ID - 31692967 AB - Excessive amounts of reactive oxygen species (ROS), unless counterbalanced by antioxidants, can cause cellular damage under oxidative stress conditions; therefore, antioxidative defenses against ROS must be measured. With the development of nanotechnology, nanoparticles have found numerous applications in science, health, and industries. Magnetite nanoparticles (Fe3O4:MN Ps) have attracted attention because of their peroxidase-like activity. In this study, hydroxyl radicals (center dot OH) generated by MNPs-catalyzed degradation of H2O2 converted the N,N-dimethyl-p-phenylenediamine (DMPD) probe into its colored DMPD center dot+. radical cation, which gave an absorbance maximum at lambda = 553 nm. In the presence of antioxidants, center dot OH was partly scavenged by antioxidants and produced less DMPD center dot+, causing a decrease in the 553 nm-absorbance. Antioxidant concentrations were calculated with the aid of absorbance differences between the reference and sample solutions. The linear working ranges and trolox equivalent antioxidant capacity coefficients of different classes of antioxidants were determined by applying the developed method. In addition, binary and ternary mixtures of antioxidants were tested to observe the additivity of absorbances of mixture constituents. The method was applied to real samples such as orange juice and green tea. Student t-test, F tests, and the Spearman's rank correlation coefficient were used for statistical comparisons. LA - English DB - MTMT ER - TY - JOUR AU - Nyergesné Illés, Erzsébet AU - Csákiné Tombácz, Etelka AU - Hegedüs, Zsófia AU - Szabó, Tamás TI - Tunable magnetic hyperthermia properties of pristine and mildly reduced graphene oxide/magnetite nanocomposite dispersions JF - NANOMATERIALS J2 - NANOMATERIALS-BASEL VL - 10 PY - 2020 IS - 12 PG - 17 SN - 2079-4991 DO - 10.3390/nano10122426 UR - https://m2.mtmt.hu/api/publication/31776017 ID - 31776017 LA - English DB - MTMT ER - TY - JOUR AU - Socoliuc, V. AU - Peddis, D. AU - Petrenko, V.I. AU - Avdeev, M.V. AU - Susan-Resiga, D. AU - Szabó, Tamás AU - Turcu, R. AU - Csákiné Tombácz, Etelka AU - Vékás, L. TI - Magnetic nanoparticle systems for nanomedicine—a materials science perspective JF - MAGNETOCHEMISTRY J2 - MAGNETOCHEMISTRY VL - 6 PY - 2020 IS - 1 PG - 36 SN - 2312-7481 DO - 10.3390/magnetochemistry6010002 UR - https://m2.mtmt.hu/api/publication/32078295 ID - 32078295 LA - English DB - MTMT ER - TY - JOUR AU - Andelescu, Adelina AU - Nistor, Maria Andreea AU - Muntean, Simona Gabriela AU - Radulescu-Grad, Maria Elena TI - Adsorption studies on copper, cadmium, and zinc ion removal from aqueous solution using magnetite/carbon nanocomposites JF - SEPARATION SCIENCE AND TECHNOLOGY J2 - SEP SCI TECHNOL VL - 53 PY - 2018 IS - 15 SP - 2352 EP - 2364 PG - 13 SN - 0149-6395 DO - 10.1080/01496395.2018.1457696 UR - https://m2.mtmt.hu/api/publication/30478345 ID - 30478345 AB - Magnetite/carbon nanocomposites were tested as adsorbents for removal of metal ions from aqueous solutions. The effect of adsorption parameters such as solutions pH (ranging between 2 and 9), the nature and the quantity of the sorbent (10, 20, 40, and 60 mg), initial concentration of metal ions (10, 30, 50, 100, and 150 mg/L), and temperature (25, 45, and 65 degrees C) was evaluated. The removal efficiency of metal ions depends on solution pH and increases with increasing carbon content, the dose of magnetite/carbon nanocomposites, and the temperature and decrease with initial concentration of the metal ions. The adsorption kinetics was described by pseudo-second-order model, and the equilibrium experimental data were well fitted to the Sips isotherm, yielding a maximum adsorption capacity of 41.11, 76.67, and 48.45 mg/g for copper, cadmium, and zinc, respectively. The thermodynamic parameter Gibbs free energy was determined to be negative, which indicated that the adsorption process is spontaneous. The optimum conditions (1 g/L adsorbent, 25 degrees C, and pH 6) were selected for removal of metal ions from real wastewaters, with good results indicating that investigated nanocomposites could be used for the application in real systems. LA - English DB - MTMT ER - TY - JOUR AU - Ianoş, R AU - Păcurariu, C AU - Muntean, SG AU - Muntean, E AU - Nistor, MA AU - Nižňanský, D TI - Combustion synthesis of iron oxide/carbon nanocomposites, efficient adsorbents for anionic and cationic dyes removal from wastewaters JF - JOURNAL OF ALLOYS AND COMPOUNDS J2 - J ALLOY COMPD VL - 741 PY - 2018 SP - 1235 EP - 1246 PG - 12 SN - 0925-8388 DO - 10.1016/j.jallcom.2018.01.240 UR - https://m2.mtmt.hu/api/publication/27216093 ID - 27216093 N1 - Funding Agency and Grant Number: Romanian National Authority for Scientific Research and Innovation, CNCS - UEFISCDI [PN-II-RU-TE-2014-4-1319] Funding text: This work was supported by a grant of the Romanian National Authority for Scientific Research and Innovation, CNCS - UEFISCDI, project number PN-II-RU-TE-2014-4-1319. LA - English DB - MTMT ER - TY - JOUR AU - Nyergesné Illés, Erzsébet AU - Szekeres, Márta AU - Tóth, Ildikó AU - Szabó, Ákos AU - Iván, Béla AU - Turcu, R AU - Vékás, L AU - Zupkó, István AU - Jaics, G AU - Csákiné Tombácz, Etelka TI - Multifunctional PEG-carboxylate copolymer coated superparamagnetic iron oxide nanoparticles for biomedical application JF - JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS J2 - J MAGN MAGN MATER VL - 451 PY - 2018 SP - 710 EP - 720 PG - 11 SN - 0304-8853 DO - 10.1016/j.jmmm.2017.11.122 UR - https://m2.mtmt.hu/api/publication/3306170 ID - 3306170 AB - Biocompatible magnetite nanoparticles (MNPs) were prepared by post-coating the magnetic nanocores with a synthetic polymer designed specifically to shield the particles from non-specific interaction with cells. Poly(ethylene glycol) methyl ether methacrylate (PEGMA) macromonomers and acrylic acid (AA) small molecular monomers were chemically coupled by quasi-living atom transfer radical polymerization (ATRP) to a comb-like copolymer, P(PEGMA-co-AA) designated here as P(PEGMA-AA). The polymer contains pendant carboxylate moieties near the backbone and PEG side chains. It is able to bind spontaneously to MNPs; stabilize the particles electrostatically via the carboxylate moieties and sterically via the PEG moieties; provide high protein repellency via the structured PEG layer; and anchor bioactive proteins via peptide bond formation with the free carboxylate groups. The presence of the P(PEGMA-AA) coating was verified in XPS experiments. The electrosteric (i.e., combined electrostatic and steric) stabilization is efficient down to pH 4 (at 10 mM ionic strength). Static magnetization and AC susceptibility measurements showed that the P(PEGMA-AA)@MNPs are superparamagnetic with a saturation magnetization value of 55 emu/g and that both single core nanoparticles and multicore structures are present in the samples. The multicore components make our product well suited for magnetic hyperthermia applications (SAR values up to 17.44 W/g). In vitro biocompatibility, cell internalization, and magnetic hyperthermia studies demonstrate the excellent theranostic potential of our product. © 2017 Elsevier B.V. LA - English DB - MTMT ER - TY - JOUR AU - Nyergesné Illés, Erzsébet AU - Szekeres, Márta AU - Tóth, Ildikó AU - Farkas, Katalin AU - Földesi, Imre AU - Szabó, Ákos AU - Iván, Béla AU - Csákiné Tombácz, Etelka TI - PEGylation of Superparamagnetic Iron Oxide Nanoparticles with Self-Organizing Polyacrylate-PEG Brushes for Contrast Enhancement in MRI Diagnosis JF - NANOMATERIALS J2 - NANOMATERIALS-BASEL VL - 8 PY - 2018 IS - 10 PG - 19 SN - 2079-4991 DO - 10.3390/nano8100776 UR - https://m2.mtmt.hu/api/publication/3429697 ID - 3429697 LA - English DB - MTMT ER - TY - JOUR AU - Muntean, Simona Gabriela AU - Nistor, Maria Andreea AU - Muntean, Eliza AU - Todea, Anamaria AU - Ianos, Robert AU - Pacurariu, Cornelia TI - Removal of Colored Organic Pollutants from Wastewaters by Magnetite/Carbon Nanocomposites: Single and Binary Systems JF - JOURNAL OF CHEMISTRY J2 - J CHEM-NY VL - 2018 PY - 2018 PG - 16 SN - 2090-9063 DO - 10.1155/2018/6249821 UR - https://m2.mtmt.hu/api/publication/27541015 ID - 27541015 LA - English DB - MTMT ER - TY - JOUR AU - Szabó, Tamás AU - Nánai, Lilla AU - Nesztor, D AU - Barna, B AU - Malina, O AU - Csákiné Tombácz, Etelka TI - A Simple and Scalable Method for the Preparation of Magnetite/Graphene Oxide Nanocomposites under Mild Conditions JF - ADVANCES IN MATERIALS SCIENCE AND ENGINEERING J2 - ADV MATER SCI ENG VL - 2018 PY - 2018 PG - 11 SN - 1687-8434 DO - 10.1155/2018/1390651 UR - https://m2.mtmt.hu/api/publication/3406205 ID - 3406205 N1 - OA gold LA - English DB - MTMT ER - TY - JOUR AU - Schwaminger, Sebastian P AU - Fraga-Garcia, Paula AU - Selbach, Felix AU - Hein, Florian G AU - Fuss, Eva C AU - Surya, Rifki AU - Roth, Hans-Christian AU - Blank-Shim, Silvia A AU - Wagner, Friedrich E AU - Heissler, Stefan AU - Berensmeier, Sonja TI - Bio-nano interactions: cellulase on iron oxide nanoparticle surfaces JF - ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY J2 - ADSORPTION VL - 23 PY - 2017 IS - 2-3 SP - 281 EP - 292 PG - 12 SN - 0929-5607 DO - 10.1007/s10450-016-9849-y UR - https://m2.mtmt.hu/api/publication/26544485 ID - 26544485 N1 - Funding Agency and Grant Number: Federal Ministry of Education and ResearchFederal Ministry of Education & Research (BMBF) [031A173A]; Bavarian Ministry of Economic Affairs and Media, Energy and Technology [1340/68351/3/11] Funding text: The authors would like to express their gratitude to Prof. Dr. Tom Nilges for his support with powder XRD (TU Munchen) and Dr. Peter Weidler for valuable discussions (Karlsruhe Institute of Technology, Institute of Functional Interfaces, Germany). Furthermore, we would like to express our very great appreciation to Dr. Marianne Hanzlik for help with TEM measurements and Stefan Darchinger for the performance of gel electrophoresis. Moreover, we are particularly grateful for the financial support of this work by the Federal Ministry of Education and Research (Grant number 031A173A) and the Bavarian Ministry of Economic Affairs and Media, Energy and Technology (Grant number 1340/68351/3/11). LA - English DB - MTMT ER - TY - JOUR AU - Tóth, Ildikó AU - Nesztor, Dániel AU - Novák, Levente AU - Nyergesné Illés, Erzsébet AU - Szekeres, Márta AU - Szabó, Tamás AU - Csákiné Tombácz, Etelka TI - Clustering of carboxylated magnetite nanoparticles through polyethylenimine: Covalent versus electrostatic approach JF - JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS J2 - J MAGN MAGN MATER VL - 427 PY - 2017 SP - 280 EP - 288 PG - 9 SN - 0304-8853 DO - 10.1016/j.jmmm.2016.11.011 UR - https://m2.mtmt.hu/api/publication/3181940 ID - 3181940 N1 - N1 Funding details: NK 84014, OTKA, Országos Tudományos Kutatási Alapprogramok N1 Funding text: This research was supported by OTKA (NK 84014) grant and RADIOMAG (COST action TD1402). The authors are grateful to Vasyl Haramus (Helmholtz-Zentrum Geesthacht, Zentrum für Material- und Küstenforschung, Geesthacht, Germany), Rodica Turcu (National Institute R&D of Isotopic and Molecular Technologies, Cluj-Napoca, Romania) and Laszlo Vekas (Center for Fundamental and Advanced Technical Research, Romanian Academy Timișoara-Branch, Timișoara, Romania) for the SAXS measurements and to Daniel Sebők (Department of Physical Chemistry and Materials Sciences, University of Szeged, Szeged, Hungary) for his help in the analysis of SAXS results. Megjegyzés-26475630 N1 Funding details: NK 84014, OTKA, Országos Tudományos Kutatási Alapprogramok N1 Funding text: This research was supported by OTKA (NK 84014) grant and RADIOMAG (COST action TD1402). The authors are grateful to Vasyl Haramus (Helmholtz-Zentrum Geesthacht, Zentrum für Material- und Küstenforschung, Geesthacht, Germany), Rodica Turcu (National Institute R&D of Isotopic and Molecular Technologies, Cluj-Napoca, Romania) and Laszlo Vekas (Center for Fundamental and Advanced Technical Research, Romanian Academy Timișoara-Branch, Timișoara, Romania) for the SAXS measurements and to Daniel Sebők (Department of Physical Chemistry and Materials Sciences, University of Szeged, Szeged, Hungary) for his help in the analysis of SAXS results. Megjegyzés-26478033 N1 Funding details: NK 84014, OTKA, Országos Tudományos Kutatási Alapprogramok N1 Funding text: This research was supported by OTKA (NK 84014) grant and RADIOMAG (COST action TD1402). The authors are grateful to Vasyl Haramus (Helmholtz-Zentrum Geesthacht, Zentrum für Material- und Küstenforschung, Geesthacht, Germany), Rodica Turcu (National Institute R&D of Isotopic and Molecular Technologies, Cluj-Napoca, Romania) and Laszlo Vekas (Center for Fundamental and Advanced Technical Research, Romanian Academy Timișoara-Branch, Timișoara, Romania) for the SAXS measurements and to Daniel Sebők (Department of Physical Chemistry and Materials Sciences, University of Szeged, Szeged, Hungary) for his help in the analysis of SAXS results. Megjegyzés-26478770 N1 Funding details: NK 84014, OTKA, Országos Tudományos Kutatási Alapprogramok N1 Funding text: This research was supported by OTKA (NK 84014) grant and RADIOMAG (COST action TD1402). The authors are grateful to Vasyl Haramus (Helmholtz-Zentrum Geesthacht, Zentrum für Material- und Küstenforschung, Geesthacht, Germany), Rodica Turcu (National Institute R&D of Isotopic and Molecular Technologies, Cluj-Napoca, Romania) and Laszlo Vekas (Center for Fundamental and Advanced Technical Research, Romanian Academy Timișoara-Branch, Timișoara, Romania) for the SAXS measurements and to Daniel Sebők (Department of Physical Chemistry and Materials Sciences, University of Szeged, Szeged, Hungary) for his help in the analysis of SAXS results. Megjegyzés-26478951 N1 Funding details: NK 84014, OTKA, Országos Tudományos Kutatási Alapprogramok N1 Funding text: This research was supported by OTKA (NK 84014) grant and RADIOMAG (COST action TD1402). The authors are grateful to Vasyl Haramus (Helmholtz-Zentrum Geesthacht, Zentrum für Material- und Küstenforschung, Geesthacht, Germany), Rodica Turcu (National Institute R&D of Isotopic and Molecular Technologies, Cluj-Napoca, Romania) and Laszlo Vekas (Center for Fundamental and Advanced Technical Research, Romanian Academy Timișoara-Branch, Timișoara, Romania) for the SAXS measurements and to Daniel Sebők (Department of Physical Chemistry and Materials Sciences, University of Szeged, Szeged, Hungary) for his help in the analysis of SAXS results. Department of Physical Chemistry and Materials Science, University of Szeged, Aradi vt. square 1, Szeged, Hungary Department of Colloid and Environmental Chemistry, University of Debrecen, Egyetem square 1, Debrecen, Hungary Cited By :5 Export Date: 31 January 2020 CODEN: JMMMD Correspondence Address: Tóth, I.Y.; Department of Physical Chemistry and Materials Science, University of Szeged, Aradi vt. square 1, Hungary; email: Ildiko.Toth@chem.u-szeged.hu Funding details: Hungarian Scientific Research Fund, NK 84014 Funding details: European Cooperation in Science and Technology, TD1402 Funding details: Hungary Funding text 1: This research was supported by OTKA (NK 84014) grant and RADIOMAG (COST action TD1402). The authors are grateful to Vasyl Haramus (Helmholtz-Zentrum Geesthacht, Zentrum f?r Material- und K?stenforschung, Geesthacht, Germany), Rodica Turcu (National Institute R&D of Isotopic and Molecular Technologies, Cluj-Napoca, Romania) and Laszlo Vekas (Center for Fundamental and Advanced Technical Research, Romanian Academy Timi?oara-Branch, Timi?oara, Romania) for the SAXS measurements and to Daniel Seb?k (Department of Physical Chemistry and Materials Sciences, University of Szeged, Szeged, Hungary) for his help in the analysis of SAXS results. Department of Physical Chemistry and Materials Science, University of Szeged, Aradi vt. square 1, Szeged, Hungary Department of Colloid and Environmental Chemistry, University of Debrecen, Egyetem square 1, Debrecen, Hungary Cited By :5 Export Date: 11 August 2020 CODEN: JMMMD Correspondence Address: Tóth, I.Y.; Department of Physical Chemistry and Materials Science, University of Szeged, Aradi vt. square 1, Hungary; email: Ildiko.Toth@chem.u-szeged.hu Funding details: Hungarian Scientific Research Fund, OTKA, NK 84014 Funding details: European Cooperation in Science and Technology, COST, TD1402 Funding text 1: This research was supported by OTKA (NK 84014) grant and RADIOMAG (COST action TD1402). The authors are grateful to Vasyl Haramus (Helmholtz-Zentrum Geesthacht, Zentrum f?r Material- und K?stenforschung, Geesthacht, Germany), Rodica Turcu (National Institute R&D of Isotopic and Molecular Technologies, Cluj-Napoca, Romania) and Laszlo Vekas (Center for Fundamental and Advanced Technical Research, Romanian Academy Timi?oara-Branch, Timi?oara, Romania) for the SAXS measurements and to Daniel Seb?k (Department of Physical Chemistry and Materials Sciences, University of Szeged, Szeged, Hungary) for his help in the analysis of SAXS results. Funding Agency and Grant Number: OTKAOrszagos Tudomanyos Kutatasi Alapprogramok (OTKA) [NK 84014]; RADIOMAG [COST action TD1402] Funding text: This research was supported by OTKA (NK 84014) grant and RADIOMAG (COST action TD1402). The authors are grateful to Vasyl Haramus (Helmholtz-Zentrum Geesthacht, Zentrum fur Material- und Kustenforschung, Geesthacht, Germany), Rodica Turcu (National Institute R & D of Isotopic and Molecular Technologies, Cluj-Napoca, Romania) and Laszlo Vekas (Center for Fundamental and Advanced Technical Research, Romanian Academy Timisoara-Branch, Timisoara, Romania) for the SAXS measurements and to Daniel Sebok (Department of Physical Chemistry and Materials Sciences, University of Szeged, Szeged, Hungary) for his help in the analysis of SAXS results. Department of Physical Chemistry and Materials Science, University of Szeged, Aradi vt. square 1, Szeged, Hungary Department of Colloid and Environmental Chemistry, University of Debrecen, Egyetem square 1, Debrecen, Hungary Cited By :7 Export Date: 5 February 2021 CODEN: JMMMD Correspondence Address: Tóth, I.Y.; Department of Physical Chemistry and Materials Science, Aradi vt. square 1, Hungary; email: Ildiko.Toth@chem.u-szeged.hu Funding details: Hungarian Scientific Research Fund, OTKA, NK 84014 Funding details: European Cooperation in Science and Technology, COST, TD1402 Funding text 1: This research was supported by OTKA (NK 84014) grant and RADIOMAG (COST action TD1402). The authors are grateful to Vasyl Haramus (Helmholtz-Zentrum Geesthacht, Zentrum f?r Material- und K?stenforschung, Geesthacht, Germany), Rodica Turcu (National Institute R&D of Isotopic and Molecular Technologies, Cluj-Napoca, Romania) and Laszlo Vekas (Center for Fundamental and Advanced Technical Research, Romanian Academy Timi?oara-Branch, Timi?oara, Romania) for the SAXS measurements and to Daniel Seb?k (Department of Physical Chemistry and Materials Sciences, University of Szeged, Szeged, Hungary) for his help in the analysis of SAXS results. Department of Physical Chemistry and Materials Science, University of Szeged, Aradi vt. square 1, Szeged, Hungary Department of Colloid and Environmental Chemistry, University of Debrecen, Egyetem square 1, Debrecen, Hungary Cited By :7 Export Date: 21 March 2021 CODEN: JMMMD Correspondence Address: Tóth, I.Y.; Department of Physical Chemistry and Materials Science, Aradi vt. square 1, Hungary; email: Ildiko.Toth@chem.u-szeged.hu Funding details: European Cooperation in Science and Technology, COST, TD1402 Funding details: Hungarian Scientific Research Fund, OTKA, NK 84014 Funding text 1: This research was supported by OTKA (NK 84014) grant and RADIOMAG (COST action TD1402). The authors are grateful to Vasyl Haramus (Helmholtz-Zentrum Geesthacht, Zentrum f?r Material- und K?stenforschung, Geesthacht, Germany), Rodica Turcu (National Institute R&D of Isotopic and Molecular Technologies, Cluj-Napoca, Romania) and Laszlo Vekas (Center for Fundamental and Advanced Technical Research, Romanian Academy Timi?oara-Branch, Timi?oara, Romania) for the SAXS measurements and to Daniel Seb?k (Department of Physical Chemistry and Materials Sciences, University of Szeged, Szeged, Hungary) for his help in the analysis of SAXS results. Department of Physical Chemistry and Materials Science, University of Szeged, Aradi vt. square 1, Szeged, Hungary Department of Colloid and Environmental Chemistry, University of Debrecen, Egyetem square 1, Debrecen, Hungary Cited By :7 Export Date: 16 September 2021 CODEN: JMMMD Correspondence Address: Tóth, I.Y.; Department of Physical Chemistry and Materials Science, Aradi vt. square 1, Hungary; email: Ildiko.Toth@chem.u-szeged.hu Funding details: European Cooperation in Science and Technology, COST, TD1402 Funding details: Hungarian Scientific Research Fund, OTKA, NK 84014 Funding text 1: This research was supported by OTKA (NK 84014) grant and RADIOMAG (COST action TD1402). The authors are grateful to Vasyl Haramus (Helmholtz-Zentrum Geesthacht, Zentrum f?r Material- und K?stenforschung, Geesthacht, Germany), Rodica Turcu (National Institute R&D of Isotopic and Molecular Technologies, Cluj-Napoca, Romania) and Laszlo Vekas (Center for Fundamental and Advanced Technical Research, Romanian Academy Timi?oara-Branch, Timi?oara, Romania) for the SAXS measurements and to Daniel Seb?k (Department of Physical Chemistry and Materials Sciences, University of Szeged, Szeged, Hungary) for his help in the analysis of SAXS results. AB - Carboxylated magnetite nanoparticles (MNPs) are frequently used to develop materials with enhanced properties for MRI and hyperthermia. The controlled clustering of MNPs via covalent or electrostatic approaches provides opportunity to prepare high quality materials. MNPs were prepared by co-precipitation and coated by poly(acrylic acid-co-maleic acid) (PAM@MNP). The clusters were synthesized from purified PAM@MNPs and polyethylenimine (PEI) solution via electrostatic interaction and covalent bond formation (ES-cluster and CB-cluster, respectively). The electrostatic adhesion (–NH3 + and –COO–) and the formed amide bond were confirmed by ATR-FTIR. The averaged area of CB-clusters was about twice as large as that of ES-cluster, based on TEM. The SAXS results showed that the surface of MNPs was smooth and the nanoparticles were close packed in both clusters. The pH-dependent aggregation state and zeta potential of clusters were characterized by DLS and electrophoresis measurements, the clusters were colloidally stable at pH>5. In hyperthermia experiments, the values of SAR were about two times larger for the chemically bonded cluster. The MRI studies showed exceptionally high transversion relaxivities, the r2 values are 457 mM−1 s−1 and 691 mM−1 s−1 for ES-cluster and CB-cluster, respectively. Based on these results, the chemically clustered product shows greater potential for feasible biomedical applications. © 2016 Elsevier B.V. LA - English DB - MTMT ER - TY - JOUR AU - Alp, Erdem AU - Aydogan, Nihal TI - A comparative study: Synthesis of superparamagnetic iron oxide nanoparticles in air and N-2 atmosphere JF - COLLOIDS AND SURFACES A : PHYSICOCHEMICAL AND ENGINEERING ASPECTS J2 - COLLOID SURFACE A VL - 510 PY - 2016 SP - 205 EP - 212 PG - 8 SN - 0927-7757 DO - 10.1016/j.colsurfa.2016.06.033 UR - https://m2.mtmt.hu/api/publication/26367647 ID - 26367647 LA - English DB - MTMT ER - TY - JOUR AU - Kosmulski, Marek TI - Isoelectric points and points of zero charge of metal (hydr)oxides: 50 years after Parks' review JF - ADVANCES IN COLLOID AND INTERFACE SCIENCE J2 - ADV COLLOID INTERFAC VL - 238 PY - 2016 SP - 1 EP - 61 PG - 61 SN - 0001-8686 DO - 10.1016/j.cis.2016.10.005 UR - https://m2.mtmt.hu/api/publication/26393642 ID - 26393642 N1 - Cited By :199 Export Date: 27 September 2021 CODEN: ACISB LA - English DB - MTMT ER - TY - JOUR AU - Meena, Amanda H AU - Arai, Yuji TI - Effects of common groundwater ions on chromate removal by magnetite: importance of chromate adsorption JF - GEOCHEMICAL TRANSACTIONS J2 - GEOCHEM T VL - 17 PY - 2016 PG - 13 SN - 1467-4866 DO - 10.1186/s12932-016-0033-9 UR - https://m2.mtmt.hu/api/publication/26001400 ID - 26001400 N1 - Funding Agency and Grant Number: NIFA hatch fund [1-600116-875000-875939]; South Carolina Universities Research and Education Foundation [DE-AC09-08SR22470]; U.S. Department of Energy, Office of Science, Office of Basic Energy SciencesUnited States Department of Energy (DOE) [DE-AC02-76SF00515] Funding text: This research was supported by the NIFA hatch fund (1-600116-875000-875939) and the South Carolina Universities Research and Education Foundation, Contract No. DE-AC09-08SR22470. Portions of this work were performed at BL4-3 at SSRL. These facilities are supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract No. DE-AC02-76SF00515. LA - English DB - MTMT ER - TY - JOUR AU - Csákiné Tombácz, Etelka AU - Farkas, Katalin AU - Földesi, Imre AU - Szekeres, Márta AU - Nyergesné Illés, Erzsébet AU - Tóth, Ildikó AU - Nesztor, Dániel AU - Szabó, Tamás TI - Polyelectrolyte coating on superparamagnetic iron oxide nanoparticles as interface between magnetic core and biorelevant media JF - INTERFACE FOCUS J2 - INTERFACE FOCUS VL - 6 PY - 2016 IS - 6 SN - 2042-8898 DO - 10.1098/rsfs.2016.0068 UR - https://m2.mtmt.hu/api/publication/3135367 ID - 3135367 AB - Nanoparticles do not exist in thermodynamical equilibrium because of high surface free energy,thus they have only kinetic stability. Spontaneous changes can be delayed by designed surface coating. In biomedical applications,superparamagnetic iron oxide nanoparticles (SPIONs) require an optimized coating in order to fulfil the expectation of medicine regulatory agencies and ultimately that of biocompatibility. In this work,we show the high surface reactivity of naked SPIONs due to ≡Fe-OH sites,which can react with H+/OH- to form pH- and ionic strength-dependent charges. We explain the post-coating of naked SPIONs with organic polyacids via multi-site complex bonds formed spontaneously. The excess polyacids can be removed from the medium. The free COOH groups in coating are prone to react with active biomolecules like proteins. Charging and pH- and salt-dependent behaviour of carboxylated SPIONs were characterized quantitatively. The interrelation between the coating quality and colloidal stability measured under biorelevant conditions is discussed. Our coagulation kinetics results allow us to predict colloidal stability both on storage and in use; however,a simpler method would be required to test SPION preparations. Haemocompatibility tests (smears) support our qualification for good and bad SPION manufacturing; the latter ‘promises’ fatal outcome in vivo. © 2016 The Author(s) Published by the Royal Society. All rights reserved. LA - English DB - MTMT ER - TY - JOUR AU - Tóth, Ildikó AU - Gábor, Veress AU - Szekeres, Márta AU - Nyergesné Illés, Erzsébet AU - Csákiné Tombácz, Etelka TI - Magnetic hyaluronate hydrogels: preparation and characterization JF - JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS J2 - J MAGN MAGN MATER VL - 380 PY - 2015 SP - 175 EP - 180 PG - 6 SN - 0304-8853 DO - 10.1016/j.jmmm.2014.10.139 UR - https://m2.mtmt.hu/api/publication/2804831 ID - 2804831 N1 - Funding Agency and Grant Number: OTKAOrszagos Tudomanyos Kutatasi Alapprogramok (OTKA) [NK 84014]; European UnionEuropean Commission; State of Hungary; [TAMOP 4.2.4. A/2-11-1-2012-0001] Funding text: This research was supported by the OTKA (NK 84014) Grant as well as by European Union and the State of Hungary, co-financed in the framework of TAMOP 4.2.4. A/2-11-1-2012-0001'National Excellence Program'. We thank Erzsebet Csanyi (University of Szeged, Department of Pharmaceutical Technology) for rheology measurements. LA - English DB - MTMT ER - TY - JOUR AU - Tóth, Ildikó AU - Nyergesné Illés, Erzsébet AU - Szekeres, Márta AU - Csákiné Tombácz, Etelka TI - Preparation and characterization of chondroitin-sulfate-A coated magnetite nanoparticles for biomedical applications JF - JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS J2 - J MAGN MAGN MATER VL - 380 PY - 2015 SP - 168 EP - 174 PG - 7 SN - 0304-8853 DO - 10.1016/j.jmmm.2014.09.080 UR - https://m2.mtmt.hu/api/publication/2805051 ID - 2805051 N1 - Cited By :19 Export Date: 31 January 2020 CODEN: JMMMD Correspondence Address: Tóth, I.Y.; Department of Physical Chemistry and Materials Science, University of Szeged, Aradi Vt. 1, Hungary Funding details: Hungarian Scientific Research Fund, NK 84014 Funding text 1: This work was supported by OTKA ( NK 84014 ) foundation. The authors are grateful to Dr. Vlad Socoliuc (Center of Fundamental and Advanced Technical Research of the Timisoara Branch of Romanian Academy) for the magnetic measurements. Cited By :20 Export Date: 11 August 2020 CODEN: JMMMD Correspondence Address: Tóth, I.Y.; Department of Physical Chemistry and Materials Science, University of Szeged, Aradi Vt. 1, Hungary Funding details: Hungarian Scientific Research Fund, OTKA, NK 84014 Funding text 1: This work was supported by OTKA ( NK 84014 ) foundation. The authors are grateful to Dr. Vlad Socoliuc (Center of Fundamental and Advanced Technical Research of the Timisoara Branch of Romanian Academy) for the magnetic measurements. Cited By :20 Export Date: 21 March 2021 CODEN: JMMMD Correspondence Address: Tóth, I.Y.; Department of Physical Chemistry and Materials Science, University of Szeged, Aradi Vt. 1, Hungary Funding details: Hungarian Scientific Research Fund, OTKA, NK 84014 Funding text 1: This work was supported by OTKA ( NK 84014 ) foundation. The authors are grateful to Dr. Vlad Socoliuc (Center of Fundamental and Advanced Technical Research of the Timisoara Branch of Romanian Academy) for the magnetic measurements. Cited By :20 Export Date: 16 September 2021 CODEN: JMMMD Correspondence Address: Tóth, I.Y.; Department of Physical Chemistry and Materials Science, University of Szeged, Aradi Vt. 1, Hungary Funding details: Hungarian Scientific Research Fund, OTKA, NK 84014 Funding text 1: This work was supported by OTKA ( NK 84014 ) foundation. The authors are grateful to Dr. Vlad Socoliuc (Center of Fundamental and Advanced Technical Research of the Timisoara Branch of Romanian Academy) for the magnetic measurements. Funding Agency and Grant Number: OTKA foundationOrszagos Tudomanyos Kutatasi Alapprogramok (OTKA) [NK 84014] Funding text: This work was supported by OTKA (NK 84014) foundation, The authors are grateful to Dr. Vlad Socoliuc (Center of Fundamental and Advanced Technical Research of the Timisoara Branch of Romanian Academy) for the magnetic measurements. LA - English DB - MTMT ER - TY - JOUR AU - Kalska-Szostko, B AU - Wykowska, U AU - Satula, D AU - Nordblad, P TI - Thermal treatment of magnetite nanoparticles JF - BEILSTEIN JOURNAL OF NANOTECHNOLOGY J2 - BEILSTEIN J NANOTECH VL - 6 PY - 2015 IS - 1 SP - 1385 EP - 1396 PG - 12 SN - 2190-4286 DO - 10.3762/bjnano.6.143 UR - https://m2.mtmt.hu/api/publication/25552494 ID - 25552494 N1 - Funding Agency and Grant Number: European Union funds via the project POPWEuropean Union (EU) [01.03.00-20-034/09-00]; NCN funds [2014/13/N/ST5/00568] Funding text: The SQUID measurements were performed under the Short-Term Scientific Mission (COST Action TO-BE MP1308). The work was partially financed by European Union funds via the project POPW. 01.03.00-20-034/09-00 and by NCN funds under project number 2014/13/N/ST5/00568. LA - English DB - MTMT ER - TY - JOUR AU - Nedelcu, GG AU - Nastro, A AU - Filippelli, L AU - Cazacu, M AU - Iacob, M AU - Rossi, CO AU - Popa, A AU - Toloman, D AU - Dobromir, M AU - Iacomi, F TI - Structural characterization of copolymer embedded magnetic nanoparticles JF - APPLIED SURFACE SCIENCE J2 - APPL SURF SCI VL - 352 PY - 2015 SP - 109 EP - 116 PG - 8 SN - 0169-4332 DO - 10.1016/j.apsusc.2015.04.191 UR - https://m2.mtmt.hu/api/publication/25552495 ID - 25552495 N1 - Faculty of Physics, University Alexandru Ioan Cuza, Carol I Bulevard, Nr.11, Iasi, 700506, Romania Department of Chemistry and Chemical Technology, University of Calabria, Via P. Bucci, Arcavacata di Rende, Cosenza, 87036, Italy Institute of Macromolecular Chemistry Petru Poni, Aleea Grigore Ghica Voda, nr. 41A, Iasi, 700487, Romania National Institute for Research and Development of Isotopic and Molecular Technologies, 65-103 Donath Str., Cluj-Napoca 5, 400293, Romania Cited By :10 Export Date: 27 September 2021 CODEN: ASUSE Correspondence Address: Nedelcu, G.G.; Faculty of Physics, Carol I Bulevard, Nr.11, Romania; email: ggnedelcu@yahoo.com LA - English DB - MTMT ER - TY - JOUR AU - Csákiné Tombácz, Etelka AU - Turcu, Rodica AU - Socoliuc, Vlad AU - Vekas, Ladislau TI - Magnetic iron oxide nanoparticles: Recent trends in design and synthesis of magnetoresponsive nanosystems JF - BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS J2 - BIOCHEM BIOPH RES CO VL - 468 PY - 2015 IS - 3 SP - 442 EP - 453 PG - 12 SN - 0006-291X DO - 10.1016/j.bbrc.2015.08.030 UR - https://m2.mtmt.hu/api/publication/3003055 ID - 3003055 LA - English DB - MTMT ER - TY - JOUR AU - Cortajarena, AL AU - Ortega, D AU - Ocampo, SM AU - Gonzalez-García, A AU - Couleaud, P AU - Miranda, R AU - Belda-Iniesta, C AU - Ayuso-Sacido, A TI - Engineering Iron Oxide Nanoparticles for Clinical Settings JF - Nanobiomedicine J2 - Nanobiomedicine VL - 1 PY - 2014 IS - July SN - 1849-5435 DO - 10.5772/58841 UR - https://m2.mtmt.hu/api/publication/27216095 ID - 27216095 LA - English DB - MTMT ER - TY - JOUR AU - Noori, Felegari Z AU - Nematdoust, Haghi B AU - Amoabediny, G AU - Mousavi, SM AU - Amouei, Torkmahalleh M TI - An optimized integrated process for the bioleaching of a spent refinery processing catalysts JF - INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH J2 - INT J ENVIRON RES VL - 8 PY - 2014 IS - 3 SP - 621 EP - 634 PG - 14 SN - 1735-6865 UR - https://m2.mtmt.hu/api/publication/24083573 ID - 24083573 N1 - School of Chemical Engineering, University College of Engineering, University of Tehran, Box 11155-4563, Tehran, Iran Biotechnology Group, Department of Chemical Engineering, Tarbiat Modares University, Tehran, Iran Middle East Technical University Northern Cyprus Campus, Guzelyurt, Mersin 10, Turkey Cited By :7 Export Date: 27 September 2021 Correspondence Address: Amoabediny, G.; School of Chemical Engineering, University College of Engineering, University of Tehran, Box 11155-4563, Tehran, Iran; email: amoabediny@ut.ac.ir LA - English DB - MTMT ER - TY - JOUR AU - Csákiné Tombácz, Etelka AU - Szekeres, M AU - Jedlovszky-Hajdú, Angéla AU - Tóth, Ildikó AU - Bauer, Andrea Rita AU - Nesztor, Dániel AU - Nyergesné Illés, Erzsébet AU - Zupkó, István AU - Vékás, L TI - Colloidal stability of carboxylated iron oxide nanomagnets for biomedical use JF - PERIODICA POLYTECHNICA-CHEMICAL ENGINEERING J2 - PERIOD POLYTECH CHEM ENG VL - 58 PY - 2014 IS - Suppl. SP - 3 EP - 10 PG - 8 SN - 0324-5853 DO - 10.3311/PPch.7285 UR - https://m2.mtmt.hu/api/publication/2552130 ID - 2552130 N1 - Department of Physical Chemistry and Materials Science, University of Szeged, Hungary Department of Physical Chemistry and Materials Science, University of Szeged, Hungary Laboratory of Nanochemistry, Semmelweis University, Budapest, Hungary Department of Pharmacodynamics and Biopharmacy, University of Szeged, Hungary Center of Fundamental and Advanced Technical Research, RA-TD, Timisoara, Romania Cited By :11 Export Date: 11 August 2020 Department of Physical Chemistry and Materials Science, University of Szeged, Hungary Department of Physical Chemistry and Materials Science, University of Szeged, Hungary Laboratory of Nanochemistry, Semmelweis University, Budapest, Hungary Department of Pharmacodynamics and Biopharmacy, University of Szeged, Hungary Center of Fundamental and Advanced Technical Research, RA-TD, Timisoara, Romania Cited By :12 Export Date: 21 March 2021 Department of Physical Chemistry and Materials Science, University of Szeged, Hungary Department of Physical Chemistry and Materials Science, University of Szeged, Hungary Laboratory of Nanochemistry, Semmelweis University, Budapest, Hungary Department of Pharmacodynamics and Biopharmacy, University of Szeged, Hungary Center of Fundamental and Advanced Technical Research, RA-TD, Timisoara, Romania Cited By :15 Export Date: 16 September 2021 Funding Agency and Grant Number: OTKA foundationOrszagos Tudomanyos Kutatasi Alapprogramok (OTKA) [NK 84014]; [TAMOP-4.2.2.A-11/1/KONV-2012-0047] Funding text: This work was supported by OTKA (NK 84014) foundation and by TAMOP-4.2.2.A-11/1/KONV-2012-0047 project. Supplement: S LA - English DB - MTMT ER - TY - JOUR AU - Medvedeva, I AU - Bakhteeva, Y AU - Zhakov, S AU - Revvo, A AU - Byzov, I AU - Uimin, M AU - Yermakov, A AU - Mysik, A TI - Sedimentation and aggregation of magnetite nanoparticles in water by a gradient magnetic field JF - JOURNAL OF NANOPARTICLE RESEARCH J2 - J NANOPART RES VL - 15 PY - 2013 IS - 11 SN - 1388-0764 DO - 10.1007/s11051-013-2054-y UR - https://m2.mtmt.hu/api/publication/23513548 ID - 23513548 N1 - Funding Agency and Grant Number: Ural Branch of the Russian Academy of SciencesRussian Academy of Sciences [N 12-E-2-1033] Funding text: The work was supported from the grant N 12-E-2-1033 of the Ural Branch of the Russian Academy of Sciences. The authors thank N. Schegoleva, V. Gaviko, and L. Stashkova for the TEM and XRD analysis. LA - English DB - MTMT ER - TY - JOUR AU - Salazar-Camacho, C AU - Villalobos, M AU - Rivas-Sánchez, MDLL AU - Arenas-Alatorre, J AU - Alcaraz-Cienfuegos, J AU - Gutiérrez-Ruiz, ME TI - Characterization and surface reactivity of natural and synthetic magnetites JF - CHEMICAL GEOLOGY J2 - CHEM GEOL VL - 347 PY - 2013 SP - 233 EP - 245 PG - 13 SN - 0009-2541 DO - 10.1016/j.chemgeo.2013.03.017 UR - https://m2.mtmt.hu/api/publication/23172706 ID - 23172706 N1 - Funding Agency and Grant Number: Consorcio Minero Benito Juarez Pena Colorada; UNAM-DGAPAUniversidad Nacional Autonoma de Mexico [IT100912]; CONACyTConsejo Nacional de Ciencia y Tecnologia (CONACyT) Funding text: We thank the following researches at UNAM who made their laboratories and equipment available for the characterization work: Leticia Banos, Giovanny Carabali and Alejandro Valenzuela from the Materials Research Institute for XRD and magnetic measurements; America Vazquez, Roberto Sato and Rodolfo Zanella from the Center of Applied Sciences and Technological Development for Raman and IEP measurements; Eduardo Vivaldo and Gabriel Jaramillo from the Chemistry School for Light Scattering measurements; Olivia Zamora, Fabiola Vega, Teresa Pi, Blanca Sonia Angeles and Margarita Reyes from the Geology Institute for ICP-AES, XRD and SEM measurements. This work was financially supported by the "Consorcio Minero Benito Juarez Pena Colorada", who kindly supplied the natural magnetite samples collected from their mining fronts. C.S-C is grateful to the CONACyT for the student fellowship received for his doctoral work. We are grateful for the partial support also granted by UNAM-DGAPA through project PAPIIT IT100912. LA - English DB - MTMT ER - TY - JOUR AU - Szekeres, Márta AU - Tóth, Ildikó AU - Nyergesné Illés, Erzsébet AU - Jedlovszky-Hajdú, Angéla AU - Zupkó, István AU - Farkas, Katalin AU - Oszlánczi, Gábor AU - Tiszlavicz, László AU - Csákiné Tombácz, Etelka TI - Chemical and Colloidal Stability of Carboxylated Core–shell Magnetite Nanoparticles Designed for Biomedical Applications JF - INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES J2 - INT J MOL SCI VL - 14 PY - 2013 SP - 14550 EP - 14574 PG - 25 SN - 1661-6596 DO - 10.3390/ijms140714550 UR - https://m2.mtmt.hu/api/publication/2340173 ID - 2340173 N1 - Department of Physical Chemistry and Materials Science, University of Szeged, Aradi Vt. 1, H-6720 Szeged, Hungary Laboratory of Nanochemistry, Department of Biophysics and Radiation Biology, Semmelweis University, Nagyvárad tér 4, H-1089 Budapest, Hungary Department of Pharmacodynamics and Biopharmacy, University of Szeged, Eötvös u. 1, H-6720 Szeged, Hungary Department of Laboratory Medicine, University of Szeged, Semmelweis u. 6, H-6720 Szeged, Hungary Department of Public Health, University of Szeged, Dóm tér 10, H-6720 Szeged, Hungary Department of Pathology, University of Szeged, Állomás u. 2, H-6720 Szeged, Hungary Cited By :65 Export Date: 13 January 2023 Correspondence Address: Szekeres, M.; Department of Physical Chemistry and Materials Science, Aradi Vt. 1, H-6720 Szeged, Hungary; email: szekeres@chem.u-szeged.hu Chemicals/CAS: citric acid, 126-44-3, 5949-29-1, 77-92-9, 8002-14-0; gallic acid, 149-91-7; polyacrylic acid, 74350-43-9, 87003-46-1, 9003-01-4, 9003-04-7; Acrylic Resins; Carboxylic Acids; Colloids; Ferric Compounds; Magnetite Nanoparticles; carbopol 940, 9003-01-4; ferric oxide, 1309-37-1 LA - English DB - MTMT ER - TY - JOUR AU - Csákiné Tombácz, Etelka AU - Tóth, Ildikó AU - Nesztor, Dániel AU - Nyergesné Illés, Erzsébet AU - Jedlovszky-Hajdú, Angéla AU - Szekeres, Márta AU - Vékás, L TI - Adsorption of organic acids on magnetite nanoparticles, pH-dependent colloidal stability and salt tolerance JF - COLLOIDS AND SURFACES A : PHYSICOCHEMICAL AND ENGINEERING ASPECTS J2 - COLLOID SURFACE A VL - 435 PY - 2013 IS - SI SP - 91 EP - 96 PG - 6 SN - 0927-7757 DO - 10.1016/j.colsurfa.2013.01.023 UR - https://m2.mtmt.hu/api/publication/2340155 ID - 2340155 N1 - Department of Physical Chemistry and Materials Science, University of Szeged, Hungary Center of Fundamental and Advanced Technical Research, RA-TD, Timisoara, Romania Cited By :91 Export Date: 13 January 2023 CODEN: CPEAE Correspondence Address: Tombácz, E.; Department of Physical Chemistry and Materials Science, Aradi vt. 1, H-6720 Szeged, Hungary; email: tombacz@chem.u-szeged.hu Chemicals/CAS: citric acid, 126-44-3, 5949-29-1, 77-92-9, 8002-14-0; gallic acid, 149-91-7; humic acid, 1415-93-6; iron oxide, 1332-37-2 LA - English DB - MTMT ER - TY - JOUR AU - Jedlovszky-Hajdú, Angéla AU - Bombelli, Francesca Baldelli AU - Monopoli, Marco P AU - Csákiné Tombácz, Etelka AU - Dawson, Kenneth A TI - Surface Coatings Shape the Protein Corona of SPIONs with Relevance to Their Application in Vivo JF - LANGMUIR J2 - LANGMUIR VL - 28 PY - 2012 IS - 42 SP - 14983 EP - 14991 PG - 9 SN - 0743-7463 DO - 10.1021/la302446h UR - https://m2.mtmt.hu/api/publication/2118531 ID - 2118531 LA - English DB - MTMT ER - TY - JOUR AU - Jolsterå, R AU - Gunneriusson, L AU - Holmgren, A TI - Surface complexation modeling of Fe 3O 4-H + and Mg(II) sorption onto maghemite and magnetite JF - JOURNAL OF COLLOID AND INTERFACE SCIENCE J2 - J COLLOID INTERF SCI VL - 386 PY - 2012 IS - 1 SP - 260 EP - 267 PG - 8 SN - 0021-9797 DO - 10.1016/j.jcis.2012.07.031 UR - https://m2.mtmt.hu/api/publication/22679799 ID - 22679799 N1 - Cited By :27 Export Date: 27 September 2021 CODEN: JCISA Correspondence Address: Jolsterå, R.; Division of Sustainable Process Engineering, , SE-97187 Luleå, Sweden; email: rickard.jolstera@ltu.se LA - English DB - MTMT ER - TY - JOUR AU - Medvedeva, I AU - Uimin, M AU - Yermakov, A AU - Mysik, A AU - Byzov, I AU - Nabokova, T AU - Gaviko, V AU - Shchegoleva, N AU - Zhakov, S AU - Tsurin, V AU - Linnikov, O AU - Rodina, I AU - Platonov, V AU - Osipov, V TI - Sedimentation of Fe3O4 nanosized magnetic particles in water solution enhanced in a gradient magnetic field JF - JOURNAL OF NANOPARTICLE RESEARCH J2 - J NANOPART RES VL - 14 PY - 2012 IS - 3 SN - 1388-0764 DO - 10.1007/s11051-012-0740-9 UR - https://m2.mtmt.hu/api/publication/22347530 ID - 22347530 N1 - Funding Agency and Grant Number: Ural Division of the Russian Academy of SciencesRussian Academy of Sciences [12-I-2-2037] Funding text: The study was supported from the grant N 12-I-2-2037 of the Ural Division of the Russian Academy of Sciences. LA - English DB - MTMT ER - TY - CHAP AU - L, Vékás AU - Csákiné Tombácz, Etelka AU - R, Turcu AU - I, Morjan AU - M V, Avdeev AU - T, Krasia-Christoforou AU - V, Socoliuc ED - Christoph, Alexiou TI - Synthesis of Magnetic Nanoparticles and Magnetic Fluids for Biomedical Applications T2 - Nanomedicine – Basic and Clinical Applications in Diagnostics and Therapy PB - K. G. Saur CY - Basel SN - 9783805598187 PY - 2011 SP - 35 EP - 52 PG - 18 DO - 10.1159/000328882 UR - https://m2.mtmt.hu/api/publication/1935234 ID - 1935234 N1 - Név javítva. LA - English DB - MTMT ER - TY - JOUR AU - Rodriguez-Arco, L AU - Lopez-Lopez, MT AU - Duran, JDG AU - Zubarev, A AU - Chirikov, D TI - Stability and magnetorheological behaviour of magnetic fluids based on ionic liquids JF - JOURNAL OF PHYSICS-CONDENSED MATTER J2 - J PHYS CONDENS MAT VL - 23 PY - 2011 IS - 45 SN - 0953-8984 DO - 10.1088/0953-8984/23/45/455101 UR - https://m2.mtmt.hu/api/publication/22248657 ID - 22248657 N1 - Funding Agency and Grant Number: Junta de Andalucia, Spain [P08-FQM-3993, P09-FQM-4787]; MICINN, Spain [FIS2009-07321]; University of Granada (Spain); Russian Agency of Education [2.1.1/14049, 2.1.1/1535]; Russian Federal Target Program [02.740.11.0202, 02-740-11-5172, NK-43P(4)]; Russian Fund of Fundamental Investigations [10-01-96002-Ural, 10-02-96001-Ural, 10-02-00034] Funding text: This work was supported by projects P08-FQM-3993 and P09-FQM-4787 (Junta de Andalucia, Spain) and FIS2009-07321 (MICINN, Spain). One of the authors (MTL-L) also acknowledges financial support by the University of Granada (Spain). AZ and DC have been supported by the Russian Agency of Education, projects 2.1.1/14049 and 2.1.1/1535, grants of the Russian Federal Target Program 02.740.11.0202, nos 02-740-11-5172 and NK-43P(4), grants of the Russian Fund of Fundamental Investigations 10-01-96002-Ural, 10-02-96001-Ural, 10-02-00034. Funding Agency and Grant Number: Junta de Andalucia, SpainJunta de Andalucia [P08-FQM-3993, P09-FQM-4787]; MICINN, SpainSpanish Government [FIS2009-07321]; University of Granada (Spain); Russian Agency of Education [2.1.1/14049, 2.1.1/1535]; Russian Federal Target Program [02.740.11.0202, 02-740-11-5172, NK-43P(4)]; Russian Fund of Fundamental Investigations [10-01-96002-Ural, 10-02-96001-Ural, 10-02-00034] Funding text: This work was supported by projects P08-FQM-3993 and P09-FQM-4787 (Junta de Andalucia, Spain) and FIS2009-07321 (MICINN, Spain). One of the authors (MTL-L) also acknowledges financial support by the University of Granada (Spain). AZ and DC have been supported by the Russian Agency of Education, projects 2.1.1/14049 and 2.1.1/1535, grants of the Russian Federal Target Program 02.740.11.0202, nos 02-740-11-5172 and NK-43P(4), grants of the Russian Fund of Fundamental Investigations 10-01-96002-Ural, 10-02-96001-Ural, 10-02-00034. LA - English DB - MTMT ER - TY - JOUR AU - Tanya, M Petrova AU - Ludmil, Fachikov AU - Jordan, Hristov TI - The magnetite as adsorbent for some hazardous species from aqueous solutions: a review JF - International Review of Chemical Engineering (IRECHE) J2 - International Review of Chemical Engineering (IRECHE) VL - 3 PY - 2011 IS - 2 SP - 134 EP - 152 PG - 19 SN - 2035-1763 UR - https://m2.mtmt.hu/api/publication/23223880 ID - 23223880 LA - English DB - MTMT ER - TY - CHAP AU - Vekas, L. AU - Tombacz, Etelka AU - Turcu, Rodica AU - Morjan, I. AU - Avdeev, M. V. AU - Krasia-Christoforou, Theodora AU - Socoliuc, V. ED - Christoph, Alexiou TI - Synthesis of Magnetic Nanoparticles and Magnetic Fluids for Biomedical Applications T2 - Nanomedicine – Basic and Clinical Applications in Diagnostics and Therapy PB - K. G. Saur CY - Basel SN - 9783805598187 PY - 2011 SP - 35 EP - 3+ PG - 3 UR - https://m2.mtmt.hu/api/publication/34685402 ID - 34685402 AB - Chemical coprecipitation and gas-phase laser pyrolysis procedures were applied to obtain various iron-based magnetic nanoparticles (magnetite, maghemite, and carbon layer-coated iron) in the size range of 3-15 nm used as basic building blocks for functionalized core-shell particles, magnetic nanofluids, as well as multifunctional hybrid nanostructures based on stimuli-responsive biocompatible polymers and block copolymers. The particle size distribution, magnetostatic properties, surface coating efficiency, and embedding/encapsulation mechanisms of magnetic nanoparticles and particle clusters in various biocompatible polymer matrices (core-shell nanostructures, microgels, and micelles) were examined by TEM/HRTEM, vibrational sample magnetometry, dynamic light scattering, Fourier transform infrared spectroscopy, and small-angle neutron scattering. The novel magnetic hybrid nanostructured materials envisaged for MRI contrast agents, magnetic carriers in bioseparation equipment, or magnetothermally triggered drug delivery systems have superparamagnetic behaviour and exhibit magneto-and thermoresponsive properties, high stability, and in vitro biocompatibility. Copyright (C) 2011 S. Karger AG, Basel LA - English DB - MTMT ER - TY - JOUR AU - Janáky, Csaba AU - Endrődi, Balázs AU - Berkesi, Ottó AU - Visy, Csaba TI - Visible-Light-Enhanced Electrocatalytic Activity of a Polypyrrole/Magnetite Hybrid Electrode toward the Reduction of Dissolved Dioxygen JF - JOURNAL OF PHYSICAL CHEMISTRY C J2 - J PHYS CHEM C VL - 114 PY - 2010 IS - 45 SP - 19338 EP - 19344 PG - 7 SN - 1932-7447 DO - 10.1021/jp105338f UR - https://m2.mtmt.hu/api/publication/1842665 ID - 1842665 N1 - Megjegyzés-26329068 Megjegyzés-22256625 Z9: 3 WC: Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, : Multidisciplinary LA - English DB - MTMT ER - TY - JOUR AU - Janáky, Csaba AU - Endrődi, Balázs AU - Jedlovszky-Hajdú, Angéla AU - Visy, Csaba TI - Synthesis and characterization of polypyrrole-magnetite-vitamin B12 hybrid composite electrodes JF - JOURNAL OF SOLID STATE ELECTROCHEMISTRY J2 - J SOLID STATE ELECTR VL - 14 PY - 2010 IS - 2 SP - 339 EP - 346 PG - 8 SN - 1432-8488 DO - 10.1007/s10008-009-0827-0 UR - https://m2.mtmt.hu/api/publication/1438142 ID - 1438142 N1 - Institute of Physical Chemistry, University of Szeged, Rerrich square 1, Szeged 6720, Hungary Department of Colloid Chemistry, University of Szeged, Aradi square 1, Szeged 6720, Hungary Cited By :14 Export Date: 25 January 2023 Correspondence Address: Visy, C.; Institute of Physical Chemistry, Rerrich square 1, Szeged 6720, Hungary; email: visy@chem.u-szeged.hu LA - English DB - MTMT ER - TY - JOUR AU - Scheckel, KG AU - Luxton, TP AU - El, Badawy AM AU - Impellitteri, CA AU - Tolaymat, TM TI - Synchrotron Speciation of Silver and Zinc Oxide Nanoparticles Aged in a Kaolin Suspension JF - ENVIRONMENTAL SCIENCE & TECHNOLOGY J2 - ENVIRON SCI TECHNOL VL - 44 PY - 2010 IS - 4 SP - 1307 EP - 1312 PG - 6 SN - 0013-936X DO - 10.1021/es9032265 UR - https://m2.mtmt.hu/api/publication/20953865 ID - 20953865 N1 - Funding Agency and Grant Number: Department of EnergyUnited States Department of Energy (DOE); MRCAT Funding text: Any opinions expressed in this paper are those of the author(s) and do not, necessarily, reflect the official positions and policies of the USEPA. Any mention of products or trade names does not constitute recommendation for use by the USEPA. MRCAT operations are supported by the Department of Energy and the MRCAT member institutions. We are grateful to Ms. Deborah Roose for ICP-OES analysis. LA - English DB - MTMT ER - TY - JOUR AU - Shen, X AU - Li, K -Y AU - Li, X -Q TI - Aggregation and deaggregation behaviors of hematite nanoparticles at different pHs JF - HUANJING KEXUE / CHINESE JOURNAL OF ENVIRONMENTAL SCIENCE J2 - CHINESE J ENVIRON SCI VL - 31 PY - 2010 IS - 10 SP - 2439 EP - 2444 PG - 6 SN - 0250-3301 UR - https://m2.mtmt.hu/api/publication/22310930 ID - 22310930 N1 - Chemicals/CAS: ferric ion, 20074-52-6; ferric oxide, 1309-37-1, 56449-54-8; Ferric Compounds; ferric oxide, 1309-37-1 LA - Chinese DB - MTMT ER - TY - JOUR AU - Yuan, P AU - Liu, D AU - Fan, MD AU - Yang, D AU - Zhu, RL AU - Ge, F AU - Zhu, JX AU - He, HP TI - Removal of hexavalent chromium [Cr(VI)] from aqueous solutions by the diatomite-supported/unsupported magnetite nanoparticles JF - JOURNAL OF HAZARDOUS MATERIALS J2 - J HAZARD MATER VL - 173 PY - 2010 IS - 1-3 SP - 614 EP - 621 PG - 8 SN - 0304-3894 DO - 10.1016/j.jhazmat.2009.08.129 UR - https://m2.mtmt.hu/api/publication/20953866 ID - 20953866 N1 - Funding Agency and Grant Number: GIGCAS [IS-1111]; National Natural Scientific Foundation of ChinaNational Natural Science Foundation of China (NSFC) [40872042]; Chinese Academy of SciencesChinese Academy of Sciences [GIGCX-07-11/21] Funding text: This is a contribution (No. IS-1111) from GIGCAS. Financial supports from the National Natural Scientific Foundation of China (Grant No. 40872042) and the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant No. GIGCX-07-11/21) are gratefully acknowledged. The authors thank Dr. Jingming Wei for her assistance in the characterization work by using N2 adsorption-desorption isotherms. LA - English DB - MTMT ER - TY - JOUR AU - Csákiné Tombácz, Etelka TI - pH-dependent surface charging of metal oxides JF - PERIODICA POLYTECHNICA-CHEMICAL ENGINEERING J2 - PERIOD POLYTECH CHEM ENG VL - 53 PY - 2009 IS - 2 SP - 77 EP - 86 PG - 10 SN - 0324-5853 DO - 10.3311/pp.ch.2009-2.08 UR - https://m2.mtmt.hu/api/publication/1335846 ID - 1335846 N1 - Megjegyzés-22676078 Megjegyzés-22254648 Z9: 1 WC: Engineering, Chemical LA - English DB - MTMT ER - TY - JOUR AU - Jedlovszky-Hajdú, Angéla AU - Nyergesné Illés, Erzsébet AU - Csákiné Tombácz, Etelka AU - Borbáth, I TI - Surface charging, polyanionic coating and colloid stability of magnetite nanoparticles JF - COLLOIDS AND SURFACES A : PHYSICOCHEMICAL AND ENGINEERING ASPECTS J2 - COLLOID SURFACE A VL - 347 PY - 2009 IS - 1-3 SP - 104 EP - 108 PG - 5 SN - 0927-7757 DO - 10.1016/j.colsurfa.2008.12.039 UR - https://m2.mtmt.hu/api/publication/1238030 ID - 1238030 LA - English DB - MTMT ER - TY - JOUR AU - Janáky, Csaba AU - Visy, Csaba AU - Berkesi, Ottó AU - Csákiné Tombácz, Etelka TI - Conducting Polymer-Based Electrode with Magnetic Behavior: Electrochemical Synthesis of Poly(3-thiophene-acetic-acid)/Magnetite Nanocomposite Thin Layers JF - JOURNAL OF PHYSICAL CHEMISTRY C J2 - J PHYS CHEM C VL - 113 PY - 2009 IS - 4 SP - 1352 EP - 1358 PG - 7 SN - 1932-7447 DO - 10.1021/jp809345b UR - https://m2.mtmt.hu/api/publication/1185113 ID - 1185113 LA - English DB - MTMT ER - TY - CHAP AU - Kosmulski, M TI - Introduction T2 - Surface charging and points of zero charge PB - CRC Press CY - Boca Raton, Florida SN - 9781420051896 T3 - Surfactant Science ; 145. PY - 2009 SP - 1 EP - 38 PG - 38 UR - https://m2.mtmt.hu/api/publication/22910225 ID - 22910225 LA - English DB - MTMT ER - TY - BOOK AU - Kosmulski, M. TI - Surface charging and points of zero charge T3 - Surfactant Science ; 145. PB - CRC Press CY - Boca Raton, Florida PY - 2009 SP - 1 EP - 1065 SP - 1065 SN - 9781420051896 DO - 10.1201/9781420051896 UR - https://m2.mtmt.hu/api/publication/32245043 ID - 32245043 N1 - Cited By :301 Export Date: 18 August 2022 Correspondence Address: Kosmulski, M.; Technical University of LublinPoland LA - English DB - MTMT ER - TY - JOUR AU - Qiao, RR AU - Yang, CH AU - Gao, MY TI - Superparamagnetic iron oxide nanoparticles: from preparations to in vivo MRI applications JF - JOURNAL OF MATERIALS CHEMISTRY J2 - J MATER CHEM VL - 19 PY - 2009 IS - 35 SP - 6274 EP - 6293 PG - 20 SN - 0959-9428 DO - 10.1039/b902394a UR - https://m2.mtmt.hu/api/publication/20953870 ID - 20953870 LA - English DB - MTMT ER - TY - JOUR AU - Renault, P AU - Cazevieille, P AU - Verdier, J AU - Lahlah, J AU - Clara, C AU - Favre, F TI - Variations in the cation exchange capacity of a ferralsol supplied with vinasse, under changing aeration conditions Comparison between CEC measuring methods JF - GEODERMA J2 - GEODERMA VL - 154 PY - 2009 IS - 1-2 SP - 101 EP - 110 PG - 10 SN - 0016-7061 DO - 10.1016/j.geoderma.2009.10.003 UR - https://m2.mtmt.hu/api/publication/20954049 ID - 20954049 N1 - Funding Agency and Grant Number: French Research National Agency (ANR)French National Research Agency (ANR); Departement Environnement et Agronomie of INRA Funding text: This work has received support from the ECCO-PNBC Program of the French Research National Agency (ANR). We would like to thank the Departement Environnement et Agronomie of INRA for its support for J. Lahlah's PhD grant. We also thank Ghislain Sevenier for the technical assistance and Harriet Coleman for reviewing the English text of the manuscript. LA - English DB - MTMT ER - TY - JOUR AU - Csákiné Tombácz, Etelka AU - Jedlovszky-Hajdú, Angéla AU - Nyergesné Illés, Erzsébet AU - Nagyné László, Krisztina AU - Garberoglio, G AU - Jedlovszky, Pál TI - Water in Contact with Magnetite Nanoparticles, as Seen from Experiments and Computer Simulations JF - LANGMUIR J2 - LANGMUIR VL - 25 PY - 2009 IS - 22 SP - 13007 EP - 13014 PG - 8 SN - 0743-7463 DO - 10.1021/la901875f UR - https://m2.mtmt.hu/api/publication/1335843 ID - 1335843 N1 - Department of Colloid Chemistry, University of Szeged, H-6720 Szeged, Hungary Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economy, H-1521 Budapest, Hungary CNISM, Dipartimento di Fisica, Universitá degli Studi di Trento, Via Sommarive 14, I-38050 Povo (Trento), Italy Laboratory of Interfaces and Nanosize Systems, Institute of Chemistry, Eötvös Loránd University, Pázmány P. Stny 1/A, H-1117 Budapest, Hungary HAS Research Group of Technical Analytical Chemistry, Szt. Gellért tér 4, H-1111 Budapest, Hungary Cited By :46 Export Date: 23 January 2023 CODEN: LANGD Correspondence Address: Tombácz, E.; Department of Colloid Chemistry, , H-6720 Szeged, Hungary; email: tombacz@chem.u-szeged.hu LA - English DB - MTMT ER - TY - CHAP AU - Vékás, L AU - Avdeev, MV AU - Bica, D TI - Magnetic nanofluids: Synthesis and structure T2 - NanoScience in Biomedicine PB - Springer Netherlands SN - 9783540496601 PB - Springer Netherlands PY - 2009 SP - 650 EP - 728 PG - 79 DO - 10.1007/978-3-540-49661-8_25 UR - https://m2.mtmt.hu/api/publication/26971613 ID - 26971613 LA - English DB - MTMT ER - TY - JOUR AU - Yuan, P AU - Fan, MD AU - Yang, D AU - He, HP AU - Liu, D AU - Yuan, AH AU - Zhua, JX AU - Chen, TH TI - Montmorillonite-supported magnetite nanoparticles for the removal of hexavalent chromium [Cr(VI)] from aqueous solutions JF - JOURNAL OF HAZARDOUS MATERIALS J2 - J HAZARD MATER VL - 166 PY - 2009 IS - 2-3 SP - 821 EP - 829 PG - 9 SN - 0304-3894 DO - 10.1016/j.jhazmat.2008.11.083 UR - https://m2.mtmt.hu/api/publication/20953872 ID - 20953872 N1 - Funding Agency and Grant Number: National Science Fund for Distinguished Young ScholarsNational Natural Science Foundation of China (NSFC)National Science Fund for Distinguished Young Scholars [40725006]; Knowledge Innovation Program of the Chinese Academy of SciencesChinese Academy of SciencesKnowledge Innovation Program of the Chinese Academy of Sciences [Kzcx2-yw-112]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [40672036] Funding text: This is a contribution (No. IS-1013) from GIGCAS. Financial supports from National Science Fund for Distinguished Young Scholars (Grant No. 40725006), the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant No. Kzcx2-yw-112) and National Natural Science Foundation of China (Grant No. 40672036) are gratefully acknowledged. LA - English DB - MTMT ER - TY - JOUR AU - Jedlovszky-Hajdú, Angéla AU - Csákiné Tombácz, Etelka AU - Nyergesné Illés, Erzsébet AU - Bica, D AU - Vékás, L TI - Magnetite nanoparticles stabilized under physiological conditions for biomedical application JF - PROGRESS IN COLLOID AND POLYMER SCIENCE J2 - PROG COLL POL SCI VL - 135 PY - 2008 SP - 29 EP - 37 PG - 9 SN - 0340-255X DO - 10.1007/2882_2008_111 UR - https://m2.mtmt.hu/api/publication/1238029 ID - 1238029 AB - The biomedical application of water based magnetic fluids (MFs) is of great practical importance. Their colloidal stability under physiological conditions (blood pH ∼ 7.2-7.4 and salt concentration ∼0.15 M) and more in high magnetic field gradient is crucial. Magnetite or maghemite nanoparticles are used in general. In the present work, magnetite nanoparticles were stabilized with different compounds (citric acid (CA) and phosphate) and sodium oleate (NaO) as the most used surfactant in the stabilization of MFs. The adsorption and overcharging effect were quantified, and the enhancement in salt tolerance of stabilized systems was studied. Adsorption, electrophoretic mobility and dynamic light scattering (DLS) measurements were performed. The electrolyte tolerance was tested in coagulation kinetic measurements. Above the adsorption saturation, the nanoparticles are stabilized in a way of combined steric and electrostatic effects. The aim was to research these two important effects and demonstrate that none of them alone is enough. The phosphate was not able to stabilize the ferrofluid in spite of our expectation, but the other two additives proved to be effective stabilizing agents. The magnetite was well stabilized by the surface complexation of CA above pH ∼ 5, however, the salt tolerance of citrate stabilized MFs remained much below the concentration of physiological salt solution, and more the dissolution of magnetite nanocrystals was enhanced due to Fe-CA complexation in aqueous medium, which may cause problems in vivo. The oleate double layers were able to stabilize magnetite nanoparticles perfectly at pH ∼ 6 preventing particle aggregation effectively even in physiological salt solution. © 2008 Springer-Verlag. LA - English DB - MTMT ER - TY - JOUR AU - Csákiné Tombácz, Etelka AU - Bica, D AU - Jedlovszky-Hajdú, Angéla AU - Nyergesné Illés, Erzsébet AU - Majzik, Andrea AU - Vékás, L TI - Surfactant double layer stabilized magnetic nanofluids for biomedical application JF - JOURNAL OF PHYSICS-CONDENSED MATTER J2 - J PHYS CONDENS MAT VL - 20 PY - 2008 IS - 20 PG - 6 SN - 0953-8984 DO - 10.1088/0953-8984/20/20/204103 UR - https://m2.mtmt.hu/api/publication/1238027 ID - 1238027 LA - English DB - MTMT ER -