@article{MTMT:34410273, title = {Glyphosate/AMPA adsorption on magnetite under different conditions: The effect of pH and electrolytes}, url = {https://m2.mtmt.hu/api/publication/34410273}, author = {Kovács, Nikoletta and Maász, Gábor and Galambos, Ildikó and Gerencsérné Berta, Renáta and Mihály, Judith and Csákiné Tombácz, Etelka}, doi = {10.1016/j.molliq.2023.123674}, journal-iso = {J MOL LIQ}, journal = {JOURNAL OF MOLECULAR LIQUIDS}, volume = {393}, unique-id = {34410273}, issn = {0167-7322}, year = {2024}, eissn = {1873-3166}, orcid-numbers = {Kovács, Nikoletta/0000-0002-4602-1005; Csákiné Tombácz, Etelka/0000-0002-2068-0459} } @article{MTMT:33712813, title = {Impact of Silica-Modification and Oxidation on the Crystal Structure of Magnetite Nanoparticles}, url = {https://m2.mtmt.hu/api/publication/33712813}, author = {Dzeranov, A and Bondarenko, L and Pankratov, D and Dzhardimalieva, G and Jorobekova, S and Saman, D and Kydralieva, K}, doi = {10.3390/magnetochemistry9010018}, journal-iso = {MAGNETOCHEMISTRY}, journal = {MAGNETOCHEMISTRY}, volume = {9}, unique-id = {33712813}, year = {2023}, eissn = {2312-7481} } @article{MTMT:32637991, title = {Sample preparation considerations for surface and crystalline properties and ecotoxicity of bare and silica-coated magnetite nanoparticles}, url = {https://m2.mtmt.hu/api/publication/32637991}, author = {Bondarenko, L. and Terekhova, V. and Kahru, A. and Dzhardimalieva, G. and Kelbysheva, E. and Tropskaya, N. and Kydralieva, K.}, doi = {10.1039/d1ra05703k}, journal-iso = {RSC ADV}, journal = {RSC ADVANCES}, volume = {11}, unique-id = {32637991}, issn = {2046-2069}, abstract = {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.}, keywords = {SILICA; TOXICITY; light scattering; sample preparation; BIOLOGICAL ASSAYS; MAGNETITE; Magnetite Nanoparticles; ecotoxicity; Fe3O4 nanoparticles; Standard procedures; Crystalline properties; Paramagnetic properties; Hazardous effects; Nanoparticles suspension; Silica coated magnetite nanoparticles}, year = {2021}, eissn = {2046-2069}, pages = {32227-32235} } @article{MTMT:32121956, title = {Fabrication, Microstructure and Colloidal Stability of Humic Acids Loaded Fe3O4/APTES Nanosorbents for Environmental Applications}, url = {https://m2.mtmt.hu/api/publication/32121956}, author = {Bondarenko, Lyubov and Nyergesné Illés, Erzsébet and Csákiné Tombácz, Etelka and Dzhardimalieva, Gulzhian and Golubeva, Nina and Tushavina, Olga and Adachi, Yasuhisa and Kydralieva, Kamila}, doi = {10.3390/nano11061418}, journal-iso = {NANOMATERIALS-BASEL}, journal = {NANOMATERIALS}, volume = {11}, unique-id = {32121956}, year = {2021}, eissn = {2079-4991}, pages = {1418-1436}, orcid-numbers = {Nyergesné Illés, Erzsébet/0000-0002-2901-9616; Csákiné Tombácz, Etelka/0000-0002-2068-0459; Dzhardimalieva, Gulzhian/0000-0002-4727-8910} } @article{MTMT:32637997, title = {Synthesis of magnetite nanoparticles through a lab-on-chip device}, url = {https://m2.mtmt.hu/api/publication/32637997}, author = {Chircov, C. and Bîrcă, A.C. and Grumezescu, A.M. and Vasile, B.S. and Oprea, O. and Nicoară, A.I. and Yang, C.-H. and Huang, K.-S. and Andronescu, E.}, doi = {10.3390/ma14195906}, journal-iso = {MATERIALS}, journal = {MATERIALS}, volume = {14}, unique-id = {32637997}, abstract = {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.}, keywords = {MORPHOLOGY; nanostructured materials; Synthesis (chemical); MAGNETITE; Microfluidics; Microfluidics; PROPERTY; Crystallinity; Magnetite Nanoparticles; Magnetite Nanoparticles; Iron oxide nanoparticles; Lab-on-chip; Morphology structures; synthesis route; Synthesised; Lab-on-chips; Controlled properties; Iron precursors; Lab-on-chip devices; Mineral phasis; Precursor solution concentration}, year = {2021}, eissn = {1996-1944} } @article{MTMT:32531175, title = {Colloidal Stability of Silica-Modified Magnetite Nanoparticles: Comparison of Various Dispersion Techniques}, url = {https://m2.mtmt.hu/api/publication/32531175}, author = {Dzhardimalieva, Gulzhian and Bondarenko, Lyubov and Nyergesné Illés, Erzsébet and Csákiné Tombácz, Etelka and Tropskaya, Nataliya and Magomedov, Igor and Orekhov, Alexander and Kydralieva, Kamila}, doi = {10.3390/nano11123295}, journal-iso = {NANOMATERIALS-BASEL}, journal = {NANOMATERIALS}, volume = {11}, unique-id = {32531175}, year = {2021}, eissn = {2079-4991}, pages = {3295}, orcid-numbers = {Dzhardimalieva, Gulzhian/0000-0002-4727-8910; Nyergesné Illés, Erzsébet/0000-0002-2901-9616; Csákiné Tombácz, Etelka/0000-0002-2068-0459; Magomedov, Igor/0000-0001-8998-5499; Orekhov, Alexander/0000-0001-9012-3319} } @article{MTMT:32245052, title = {Regularities of Chromium(VI) Ions Sorption by Magnetite (Review)}, url = {https://m2.mtmt.hu/api/publication/32245052}, author = {Linnikov, O.D.}, doi = {10.1134/S2070205121020064}, journal-iso = {PROT MET PHYS CHEM+}, journal = {PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES}, volume = {57}, unique-id = {32245052}, issn = {2070-2051}, year = {2021}, eissn = {2070-206X}, pages = {235-259} } @{MTMT:32245050, title = {Removing of hexavalent chromium from polluted water solutions by magnetite: A review}, url = {https://m2.mtmt.hu/api/publication/32245050}, author = {Linnikov, O.D.}, booktitle = {Advances in Chemistry Research. Volume 67}, unique-id = {32245050}, year = {2021}, pages = {13-67} } @article{MTMT:32881672, title = {Experimental Measurement and Equilibrium Modeling of Adsorption of Asphaltenes from Various Origins onto the Magnetite Surface under Static and Dynamic Conditions}, url = {https://m2.mtmt.hu/api/publication/32881672}, author = {Mohammadi, Mohammad-Reza and Ansari, Sajjad and Bahmaninia, Hamid and Ostadhassan, Mehdi and Norouzi-Apourvari, Saeid and Hemmati-Sarapardeh, Abdolhossein and Schaffie, Mahin and Ranjbar, Mohammad}, doi = {10.1021/acsomega.1c04224}, journal-iso = {ACS OMEGA}, journal = {ACS OMEGA}, volume = {6}, unique-id = {32881672}, issn = {2470-1343}, abstract = {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.}, year = {2021}, eissn = {2470-1343}, pages = {24256-24268}, orcid-numbers = {Ansari, Sajjad/0000-0001-5231-1431} } @article{MTMT:32245053, title = {Impact of Iron Minerals in Promoting Wettability Alterations in Reservoir Formations}, url = {https://m2.mtmt.hu/api/publication/32245053}, author = {Mohammed, I. and Al, Shehri D. and Mahmoud, M. and Kamal, M.S. and Alade, O.S.}, doi = {10.1021/acsomega.0c05954}, journal-iso = {ACS OMEGA}, journal = {ACS OMEGA}, volume = {6}, unique-id = {32245053}, issn = {2470-1343}, year = {2021}, eissn = {2470-1343}, pages = {4022-4033} } @article{MTMT:31692969, title = {Spirulina platensis-capped mesoporous magnetic nanoparticles for the adsorptive removal of chromium}, url = {https://m2.mtmt.hu/api/publication/31692969}, author = {Mohan, Sreelakshmi and Govindankutty, Gopika and Sathish, Asha and Kamaraj, Nithya}, doi = {10.1002/cjce.23854}, journal-iso = {CAN J CHEM ENG}, journal = {CANADIAN JOURNAL OF CHEMICAL ENGINEERING}, volume = {99}, unique-id = {31692969}, issn = {0008-4034}, abstract = {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.}, keywords = {ADSORPTION; Chromium; DESORPTION; Iron oxide nanoparticles; Spirulina platensis}, year = {2021}, eissn = {1939-019X}, pages = {294-305} } @article{MTMT:31692966, title = {Effects of Humic Acids on the Ecotoxicity of Fe3O4 Nanoparticles and Fe-Ions: Impact of Oxidation and Aging}, url = {https://m2.mtmt.hu/api/publication/31692966}, author = {Bondarenko, Lyubov and Kahru, Anne and Terekhova, Vera and Dzhardimalieva, Gulzhian and Uchanov, Pavel and Kydralieva, Kamila}, doi = {10.3390/nano10102011}, journal-iso = {NANOMATERIALS-BASEL}, journal = {NANOMATERIALS}, volume = {10}, unique-id = {31692966}, abstract = {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.}, keywords = {PLANTS; Protozoa; Aging; AQUATIC ENVIRONMENT; BIOAVAILABILITY; BIOASSAYS; Magnetite Nanoparticles; HUMIC ACIDS; Superparamagnetic iron oxide nanoparticles (SPIONs); Sinapis alba; ferrous ions; ferric ions; Paramecium caudatum}, year = {2020}, eissn = {2079-4991}, orcid-numbers = {Terekhova, Vera/0000-0001-9121-639X; Kydralieva, Kamila/0000-0002-4596-4140} } @article{MTMT:31692967, title = {Magnetite nanoparticles-based hydroxyl radical scavenging activity assay of antioxidants using N, N-dimethyl-p-phenylenediamine probe}, url = {https://m2.mtmt.hu/api/publication/31692967}, author = {Can, Ziya and Keskin, Busra and Arda, Aysem and Ercag, Erol and Apak, Mustafa Resat}, doi = {10.3906/kim-2006-9}, journal-iso = {TURK J CHEM}, journal = {TURKISH JOURNAL OF CHEMISTRY}, volume = {44}, unique-id = {31692967}, issn = {1300-0527}, abstract = {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.}, keywords = {antioxidant activity; Reactive oxygen species (ROS); Colorimetric probe; Magnetite (Fe3O4) nanoparticles; N,N-Dimethyl-p-phenylenediamine}, year = {2020}, eissn = {1303-6130}, pages = {1366-1375} } @article{MTMT:31776017, title = {Tunable magnetic hyperthermia properties of pristine and mildly reduced graphene oxide/magnetite nanocomposite dispersions}, url = {https://m2.mtmt.hu/api/publication/31776017}, author = {Nyergesné Illés, Erzsébet and Csákiné Tombácz, Etelka and Hegedüs, Zsófia and Szabó, Tamás}, doi = {10.3390/nano10122426}, journal-iso = {NANOMATERIALS-BASEL}, journal = {NANOMATERIALS}, volume = {10}, unique-id = {31776017}, year = {2020}, eissn = {2079-4991}, orcid-numbers = {Nyergesné Illés, Erzsébet/0000-0002-2901-9616; Csákiné Tombácz, Etelka/0000-0002-2068-0459; Szabó, Tamás/0000-0001-8182-640X} } @article{MTMT:32078295, title = {Magnetic nanoparticle systems for nanomedicine—a materials science perspective}, url = {https://m2.mtmt.hu/api/publication/32078295}, author = {Socoliuc, V. and Peddis, D. and Petrenko, V.I. and Avdeev, M.V. and Susan-Resiga, D. and Szabó, Tamás and Turcu, R. and Csákiné Tombácz, Etelka and Vékás, L.}, doi = {10.3390/magnetochemistry6010002}, journal-iso = {MAGNETOCHEMISTRY}, journal = {MAGNETOCHEMISTRY}, volume = {6}, unique-id = {32078295}, year = {2020}, eissn = {2312-7481}, orcid-numbers = {Szabó, Tamás/0000-0001-8182-640X; Csákiné Tombácz, Etelka/0000-0002-2068-0459} } @article{MTMT:30478345, title = {Adsorption studies on copper, cadmium, and zinc ion removal from aqueous solution using magnetite/carbon nanocomposites}, url = {https://m2.mtmt.hu/api/publication/30478345}, author = {Andelescu, Adelina and Nistor, Maria Andreea and Muntean, Simona Gabriela and Radulescu-Grad, Maria Elena}, doi = {10.1080/01496395.2018.1457696}, journal-iso = {SEP SCI TECHNOL}, journal = {SEPARATION SCIENCE AND TECHNOLOGY}, volume = {53}, unique-id = {30478345}, issn = {0149-6395}, abstract = {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.}, keywords = {KINETICS; ADSORPTION; metal ions; Isotherm models; Magnetic nanocomposite}, year = {2018}, eissn = {1520-5754}, pages = {2352-2364}, orcid-numbers = {Muntean, Simona Gabriela/0000-0003-0498-4863} } @article{MTMT:27216093, title = {Combustion synthesis of iron oxide/carbon nanocomposites, efficient adsorbents for anionic and cationic dyes removal from wastewaters}, url = {https://m2.mtmt.hu/api/publication/27216093}, author = {Ianoş, R and Păcurariu, C and Muntean, SG and Muntean, E and Nistor, MA and Nižňanský, D}, doi = {10.1016/j.jallcom.2018.01.240}, journal-iso = {J ALLOY COMPD}, journal = {JOURNAL OF ALLOYS AND COMPOUNDS}, volume = {741}, unique-id = {27216093}, issn = {0925-8388}, year = {2018}, eissn = {1873-4669}, pages = {1235-1246} } @article{MTMT:3306170, title = {Multifunctional PEG-carboxylate copolymer coated superparamagnetic iron oxide nanoparticles for biomedical application}, url = {https://m2.mtmt.hu/api/publication/3306170}, author = {Nyergesné Illés, Erzsébet and Szekeres, Márta and Tóth, Ildikó and Szabó, Ákos and Iván, Béla and Turcu, R and Vékás, L and Zupkó, István and Jaics, G and Csákiné Tombácz, Etelka}, doi = {10.1016/j.jmmm.2017.11.122}, journal-iso = {J MAGN MAGN MATER}, journal = {JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS}, volume = {451}, unique-id = {3306170}, issn = {0304-8853}, abstract = {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.}, keywords = {PROTEINS; MAGNETIZATION; COATINGS; NANOPARTICLES; Polyethylene Glycols; ascorbic acid; MAGNETISM; biocompatibility; Free radical reactions; MONOMERS; Magnetic susceptibility; COLLOIDAL STABILITY; Acrylic monomers; ionic strength; Polyethylene oxides; PEGylation; Carboxylation; Plastic coatings; Superparamagnetism; Medical applications; Magnetite Nanoparticles; Metal Nanoparticles; Saturation magnetization; Atom transfer radical polymerization; Iron oxides; LIVING POLYMERIZATION; Nanomagnetics; Synthetic aperture radar; CORE-SHELL NANOPARTICLES; Theranostics; Superparamagnetic iron oxide nanoparticles; Superparamagnetic iron oxide nanoparticles (SPIONs); Cell internalization}, year = {2018}, eissn = {1873-4766}, pages = {710-720}, orcid-numbers = {Nyergesné Illés, Erzsébet/0000-0002-2901-9616; Tóth, Ildikó/0000-0002-4937-0526; Zupkó, István/0000-0003-3243-5300; Csákiné Tombácz, Etelka/0000-0002-2068-0459} } @article{MTMT:3429697, title = {PEGylation of Superparamagnetic Iron Oxide Nanoparticles with Self-Organizing Polyacrylate-PEG Brushes for Contrast Enhancement in MRI Diagnosis}, url = {https://m2.mtmt.hu/api/publication/3429697}, author = {Nyergesné Illés, Erzsébet and Szekeres, Márta and Tóth, Ildikó and Farkas, Katalin and Földesi, Imre and Szabó, Ákos and Iván, Béla and Csákiné Tombácz, Etelka}, doi = {10.3390/nano8100776}, journal-iso = {NANOMATERIALS-BASEL}, journal = {NANOMATERIALS}, volume = {8}, unique-id = {3429697}, year = {2018}, eissn = {2079-4991}, orcid-numbers = {Nyergesné Illés, Erzsébet/0000-0002-2901-9616; Tóth, Ildikó/0000-0002-4937-0526; Földesi, Imre/0000-0002-3329-8136; Csákiné Tombácz, Etelka/0000-0002-2068-0459} } @article{MTMT:27541015, title = {Removal of Colored Organic Pollutants from Wastewaters by Magnetite/Carbon Nanocomposites: Single and Binary Systems}, url = {https://m2.mtmt.hu/api/publication/27541015}, author = {Muntean, Simona Gabriela and Nistor, Maria Andreea and Muntean, Eliza and Todea, Anamaria and Ianos, Robert and Pacurariu, Cornelia}, doi = {10.1155/2018/6249821}, journal-iso = {J CHEM-NY}, journal = {JOURNAL OF CHEMISTRY}, volume = {2018}, unique-id = {27541015}, issn = {2090-9063}, year = {2018}, eissn = {2090-9071} } @article{MTMT:3406205, title = {A Simple and Scalable Method for the Preparation of Magnetite/Graphene Oxide Nanocomposites under Mild Conditions}, url = {https://m2.mtmt.hu/api/publication/3406205}, author = {Szabó, Tamás and Nánai, Lilla and Nesztor, D and Barna, B and Malina, O and Csákiné Tombácz, Etelka}, doi = {10.1155/2018/1390651}, journal-iso = {ADV MATER SCI ENG}, journal = {ADVANCES IN MATERIALS SCIENCE AND ENGINEERING}, volume = {2018}, unique-id = {3406205}, issn = {1687-8434}, year = {2018}, eissn = {1687-8442}, orcid-numbers = {Szabó, Tamás/0000-0001-8182-640X; Nánai, Lilla/0000-0002-3216-2210; Csákiné Tombácz, Etelka/0000-0002-2068-0459} } @article{MTMT:26544485, title = {Bio-nano interactions: cellulase on iron oxide nanoparticle surfaces}, url = {https://m2.mtmt.hu/api/publication/26544485}, author = {Schwaminger, Sebastian P and Fraga-Garcia, Paula and Selbach, Felix and Hein, Florian G and Fuss, Eva C and Surya, Rifki and Roth, Hans-Christian and Blank-Shim, Silvia A and Wagner, Friedrich E and Heissler, Stefan and Berensmeier, Sonja}, doi = {10.1007/s10450-016-9849-y}, journal-iso = {ADSORPTION}, journal = {ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY}, volume = {23}, unique-id = {26544485}, issn = {0929-5607}, year = {2017}, eissn = {1572-8757}, pages = {281-292} } @article{MTMT:3181940, title = {Clustering of carboxylated magnetite nanoparticles through polyethylenimine: Covalent versus electrostatic approach}, url = {https://m2.mtmt.hu/api/publication/3181940}, author = {Tóth, Ildikó and Nesztor, Dániel and Novák, Levente and Nyergesné Illés, Erzsébet and Szekeres, Márta and Szabó, Tamás and Csákiné Tombácz, Etelka}, doi = {10.1016/j.jmmm.2016.11.011}, journal-iso = {J MAGN MAGN MATER}, journal = {JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS}, volume = {427}, unique-id = {3181940}, issn = {0304-8853}, abstract = {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.}, keywords = {ELECTROPHORESIS; NANOPARTICLES; MRI CONTRAST AGENTS; MRI CONTRAST AGENT; Electrostatics; Polyethylenes; MAGNETITE; Self assembly; Medical applications; Magnetite Nanoparticles; Nanomagnetics; Chemically bonded; Magnetic hyperthermia; Electrostatic self assembly; Electrostatic self-assembly; Chemically bonded cluster; Carboxylated MNPs}, year = {2017}, eissn = {1873-4766}, pages = {280-288}, orcid-numbers = {Tóth, Ildikó/0000-0002-4937-0526; Nyergesné Illés, Erzsébet/0000-0002-2901-9616; Szabó, Tamás/0000-0001-8182-640X; Csákiné Tombácz, Etelka/0000-0002-2068-0459} } @article{MTMT:26367647, title = {A comparative study: Synthesis of superparamagnetic iron oxide nanoparticles in air and N-2 atmosphere}, url = {https://m2.mtmt.hu/api/publication/26367647}, author = {Alp, Erdem and Aydogan, Nihal}, doi = {10.1016/j.colsurfa.2016.06.033}, journal-iso = {COLLOID SURFACE A}, journal = {COLLOIDS AND SURFACES A : PHYSICOCHEMICAL AND ENGINEERING ASPECTS}, volume = {510}, unique-id = {26367647}, issn = {0927-7757}, year = {2016}, eissn = {1873-4359}, pages = {205-212} } @article{MTMT:26393642, title = {Isoelectric points and points of zero charge of metal (hydr)oxides: 50 years after Parks' review}, url = {https://m2.mtmt.hu/api/publication/26393642}, author = {Kosmulski, Marek}, doi = {10.1016/j.cis.2016.10.005}, journal-iso = {ADV COLLOID INTERFAC}, journal = {ADVANCES IN COLLOID AND INTERFACE SCIENCE}, volume = {238}, unique-id = {26393642}, issn = {0001-8686}, year = {2016}, eissn = {1873-3727}, pages = {1-61} } @article{MTMT:26001400, title = {Effects of common groundwater ions on chromate removal by magnetite: importance of chromate adsorption}, url = {https://m2.mtmt.hu/api/publication/26001400}, author = {Meena, Amanda H and Arai, Yuji}, doi = {10.1186/s12932-016-0033-9}, journal-iso = {GEOCHEM T}, journal = {GEOCHEMICAL TRANSACTIONS}, volume = {17}, unique-id = {26001400}, issn = {1467-4866}, year = {2016}, eissn = {1467-4866} } @article{MTMT:3135367, title = {Polyelectrolyte coating on superparamagnetic iron oxide nanoparticles as interface between magnetic core and biorelevant media}, url = {https://m2.mtmt.hu/api/publication/3135367}, author = {Csákiné Tombácz, Etelka and Farkas, Katalin and Földesi, Imre and Szekeres, Márta and Nyergesné Illés, Erzsébet and Tóth, Ildikó and Nesztor, Dániel and Szabó, Tamás}, doi = {10.1098/rsfs.2016.0068}, journal-iso = {INTERFACE FOCUS}, journal = {INTERFACE FOCUS}, volume = {6}, unique-id = {3135367}, issn = {2042-8898}, abstract = {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.}, keywords = {magnetic nanoparticles; biocompatibility; COLLOIDAL STABILITY; surface charging; SMEARS; Haemocompatibility}, year = {2016}, eissn = {2042-8901}, orcid-numbers = {Csákiné Tombácz, Etelka/0000-0002-2068-0459; Földesi, Imre/0000-0002-3329-8136; Nyergesné Illés, Erzsébet/0000-0002-2901-9616; Tóth, Ildikó/0000-0002-4937-0526; Szabó, Tamás/0000-0001-8182-640X} } @article{MTMT:2804831, title = {Magnetic hyaluronate hydrogels: preparation and characterization}, url = {https://m2.mtmt.hu/api/publication/2804831}, author = {Tóth, Ildikó and Gábor, Veress and Szekeres, Márta and Nyergesné Illés, Erzsébet and Csákiné Tombácz, Etelka}, doi = {10.1016/j.jmmm.2014.10.139}, journal-iso = {J MAGN MAGN MATER}, journal = {JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS}, volume = {380}, unique-id = {2804831}, issn = {0304-8853}, year = {2015}, eissn = {1873-4766}, pages = {175-180}, orcid-numbers = {Tóth, Ildikó/0000-0002-4937-0526; Nyergesné Illés, Erzsébet/0000-0002-2901-9616; Csákiné Tombácz, Etelka/0000-0002-2068-0459} } @article{MTMT:2805051, title = {Preparation and characterization of chondroitin-sulfate-A coated magnetite nanoparticles for biomedical applications}, url = {https://m2.mtmt.hu/api/publication/2805051}, author = {Tóth, Ildikó and Nyergesné Illés, Erzsébet and Szekeres, Márta and Csákiné Tombácz, Etelka}, doi = {10.1016/j.jmmm.2014.09.080}, journal-iso = {J MAGN MAGN MATER}, journal = {JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS}, volume = {380}, unique-id = {2805051}, issn = {0304-8853}, year = {2015}, eissn = {1873-4766}, pages = {168-174}, orcid-numbers = {Tóth, Ildikó/0000-0002-4937-0526; Nyergesné Illés, Erzsébet/0000-0002-2901-9616; Csákiné Tombácz, Etelka/0000-0002-2068-0459} } @article{MTMT:25552494, title = {Thermal treatment of magnetite nanoparticles}, url = {https://m2.mtmt.hu/api/publication/25552494}, author = {Kalska-Szostko, B and Wykowska, U and Satula, D and Nordblad, P}, doi = {10.3762/bjnano.6.143}, journal-iso = {BEILSTEIN J NANOTECH}, journal = {BEILSTEIN JOURNAL OF NANOTECHNOLOGY}, volume = {6}, unique-id = {25552494}, issn = {2190-4286}, year = {2015}, eissn = {2190-4286}, pages = {1385-1396} } @article{MTMT:25552495, title = {Structural characterization of copolymer embedded magnetic nanoparticles}, url = {https://m2.mtmt.hu/api/publication/25552495}, author = {Nedelcu, GG and Nastro, A and Filippelli, L and Cazacu, M and Iacob, M and Rossi, CO and Popa, A and Toloman, D and Dobromir, M and Iacomi, F}, doi = {10.1016/j.apsusc.2015.04.191}, journal-iso = {APPL SURF SCI}, journal = {APPLIED SURFACE SCIENCE}, volume = {352}, unique-id = {25552495}, issn = {0169-4332}, year = {2015}, eissn = {1873-5584}, pages = {109-116} } @article{MTMT:3003055, title = {Magnetic iron oxide nanoparticles: Recent trends in design and synthesis of magnetoresponsive nanosystems}, url = {https://m2.mtmt.hu/api/publication/3003055}, author = {Csákiné Tombácz, Etelka and Turcu, Rodica and Socoliuc, Vlad and Vekas, Ladislau}, doi = {10.1016/j.bbrc.2015.08.030}, journal-iso = {BIOCHEM BIOPH RES CO}, journal = {BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS}, volume = {468}, unique-id = {3003055}, issn = {0006-291X}, year = {2015}, eissn = {1090-2104}, pages = {442-453}, orcid-numbers = {Csákiné Tombácz, Etelka/0000-0002-2068-0459} } @article{MTMT:27216095, title = {Engineering Iron Oxide Nanoparticles for Clinical Settings}, url = {https://m2.mtmt.hu/api/publication/27216095}, author = {Cortajarena, AL and Ortega, D and Ocampo, SM and Gonzalez-García, A and Couleaud, P and Miranda, R and Belda-Iniesta, C and Ayuso-Sacido, A}, doi = {10.5772/58841}, journal-iso = {Nanobiomedicine}, journal = {Nanobiomedicine}, volume = {1}, unique-id = {27216095}, issn = {1849-5435}, year = {2014} } @article{MTMT:24083573, title = {An optimized integrated process for the bioleaching of a spent refinery processing catalysts}, url = {https://m2.mtmt.hu/api/publication/24083573}, author = {Noori, Felegari Z and Nematdoust, Haghi B and Amoabediny, G and Mousavi, SM and Amouei, Torkmahalleh M}, journal-iso = {INT J ENVIRON RES}, journal = {INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH}, volume = {8}, unique-id = {24083573}, issn = {1735-6865}, year = {2014}, eissn = {2008-2304}, pages = {621-634} } @article{MTMT:2552130, title = {Colloidal stability of carboxylated iron oxide nanomagnets for biomedical use}, url = {https://m2.mtmt.hu/api/publication/2552130}, author = {Csákiné Tombácz, Etelka and Szekeres, M and Jedlovszky-Hajdú, Angéla and Tóth, Ildikó and Bauer, Andrea Rita and Nesztor, Dániel and Nyergesné Illés, Erzsébet and Zupkó, István and Vékás, L}, doi = {10.3311/PPch.7285}, journal-iso = {PERIOD POLYTECH CHEM ENG}, journal = {PERIODICA POLYTECHNICA-CHEMICAL ENGINEERING}, volume = {58}, unique-id = {2552130}, issn = {0324-5853}, year = {2014}, eissn = {1587-3765}, pages = {3-10}, orcid-numbers = {Csákiné Tombácz, Etelka/0000-0002-2068-0459; Jedlovszky-Hajdú, Angéla/0000-0003-2720-783X; Tóth, Ildikó/0000-0002-4937-0526; Nyergesné Illés, Erzsébet/0000-0002-2901-9616; Zupkó, István/0000-0003-3243-5300} } @article{MTMT:23513548, title = {Sedimentation and aggregation of magnetite nanoparticles in water by a gradient magnetic field}, url = {https://m2.mtmt.hu/api/publication/23513548}, author = {Medvedeva, I and Bakhteeva, Y and Zhakov, S and Revvo, A and Byzov, I and Uimin, M and Yermakov, A and Mysik, A}, doi = {10.1007/s11051-013-2054-y}, journal-iso = {J NANOPART RES}, journal = {JOURNAL OF NANOPARTICLE RESEARCH}, volume = {15}, unique-id = {23513548}, issn = {1388-0764}, year = {2013}, eissn = {1572-896X} } @article{MTMT:23172706, title = {Characterization and surface reactivity of natural and synthetic magnetites}, url = {https://m2.mtmt.hu/api/publication/23172706}, author = {Salazar-Camacho, C and Villalobos, M and Rivas-Sánchez, MDLL and Arenas-Alatorre, J and Alcaraz-Cienfuegos, J and Gutiérrez-Ruiz, ME}, doi = {10.1016/j.chemgeo.2013.03.017}, journal-iso = {CHEM GEOL}, journal = {CHEMICAL GEOLOGY}, volume = {347}, unique-id = {23172706}, issn = {0009-2541}, year = {2013}, eissn = {1872-6836}, pages = {233-245} } @article{MTMT:2340173, title = {Chemical and Colloidal Stability of Carboxylated Core–shell Magnetite Nanoparticles Designed for Biomedical Applications}, url = {https://m2.mtmt.hu/api/publication/2340173}, author = {Szekeres, Márta and Tóth, Ildikó and Nyergesné Illés, Erzsébet and Jedlovszky-Hajdú, Angéla and Zupkó, István and Farkas, Katalin and Oszlánczi, Gábor and Tiszlavicz, László and Csákiné Tombácz, Etelka}, doi = {10.3390/ijms140714550}, journal-iso = {INT J MOL SCI}, journal = {INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES}, volume = {14}, unique-id = {2340173}, issn = {1661-6596}, year = {2013}, eissn = {1422-0067}, pages = {14550-14574}, orcid-numbers = {Tóth, Ildikó/0000-0002-4937-0526; Nyergesné Illés, Erzsébet/0000-0002-2901-9616; Jedlovszky-Hajdú, Angéla/0000-0003-2720-783X; Zupkó, István/0000-0003-3243-5300; Oszlánczi, Gábor/0000-0002-7849-8318; Csákiné Tombácz, Etelka/0000-0002-2068-0459} } @article{MTMT:2340155, title = {Adsorption of organic acids on magnetite nanoparticles, pH-dependent colloidal stability and salt tolerance}, url = {https://m2.mtmt.hu/api/publication/2340155}, author = {Csákiné Tombácz, Etelka and Tóth, Ildikó and Nesztor, Dániel and Nyergesné Illés, Erzsébet and Jedlovszky-Hajdú, Angéla and Szekeres, Márta and Vékás, L}, doi = {10.1016/j.colsurfa.2013.01.023}, journal-iso = {COLLOID SURFACE A}, journal = {COLLOIDS AND SURFACES A : PHYSICOCHEMICAL AND ENGINEERING ASPECTS}, volume = {435}, unique-id = {2340155}, issn = {0927-7757}, year = {2013}, eissn = {1873-4359}, pages = {91-96}, orcid-numbers = {Csákiné Tombácz, Etelka/0000-0002-2068-0459; Tóth, Ildikó/0000-0002-4937-0526; Nyergesné Illés, Erzsébet/0000-0002-2901-9616; Jedlovszky-Hajdú, Angéla/0000-0003-2720-783X} } @article{MTMT:2118531, title = {Surface Coatings Shape the Protein Corona of SPIONs with Relevance to Their Application in Vivo}, url = {https://m2.mtmt.hu/api/publication/2118531}, author = {Jedlovszky-Hajdú, Angéla and Bombelli, Francesca Baldelli and Monopoli, Marco P and Csákiné Tombácz, Etelka and Dawson, Kenneth A}, doi = {10.1021/la302446h}, journal-iso = {LANGMUIR}, journal = {LANGMUIR}, volume = {28}, unique-id = {2118531}, issn = {0743-7463}, year = {2012}, eissn = {1520-5827}, pages = {14983-14991}, orcid-numbers = {Jedlovszky-Hajdú, Angéla/0000-0003-2720-783X; Csákiné Tombácz, Etelka/0000-0002-2068-0459} } @article{MTMT:22679799, title = {Surface complexation modeling of Fe 3O 4-H + and Mg(II) sorption onto maghemite and magnetite}, url = {https://m2.mtmt.hu/api/publication/22679799}, author = {Jolsterå, R and Gunneriusson, L and Holmgren, A}, doi = {10.1016/j.jcis.2012.07.031}, journal-iso = {J COLLOID INTERF SCI}, journal = {JOURNAL OF COLLOID AND INTERFACE SCIENCE}, volume = {386}, unique-id = {22679799}, issn = {0021-9797}, year = {2012}, eissn = {1095-7103}, pages = {260-267} } @article{MTMT:22347530, title = {Sedimentation of Fe3O4 nanosized magnetic particles in water solution enhanced in a gradient magnetic field}, url = {https://m2.mtmt.hu/api/publication/22347530}, author = {Medvedeva, I and Uimin, M and Yermakov, A and Mysik, A and Byzov, I and Nabokova, T and Gaviko, V and Shchegoleva, N and Zhakov, S and Tsurin, V and Linnikov, O and Rodina, I and Platonov, V and Osipov, V}, doi = {10.1007/s11051-012-0740-9}, journal-iso = {J NANOPART RES}, journal = {JOURNAL OF NANOPARTICLE RESEARCH}, volume = {14}, unique-id = {22347530}, issn = {1388-0764}, year = {2012}, eissn = {1572-896X} } @inbook{MTMT:1935234, title = {Synthesis of Magnetic Nanoparticles and Magnetic Fluids for Biomedical Applications}, url = {https://m2.mtmt.hu/api/publication/1935234}, author = {L, Vékás and Csákiné Tombácz, Etelka and R, Turcu and I, Morjan and M V, Avdeev and T, Krasia-Christoforou and V, Socoliuc}, booktitle = {Nanomedicine – Basic and Clinical Applications in Diagnostics and Therapy}, doi = {10.1159/000328882}, unique-id = {1935234}, year = {2011}, pages = {35-52}, orcid-numbers = {Csákiné Tombácz, Etelka/0000-0002-2068-0459} } @article{MTMT:22248657, title = {Stability and magnetorheological behaviour of magnetic fluids based on ionic liquids}, url = {https://m2.mtmt.hu/api/publication/22248657}, author = {Rodriguez-Arco, L and Lopez-Lopez, MT and Duran, JDG and Zubarev, A and Chirikov, D}, doi = {10.1088/0953-8984/23/45/455101}, journal-iso = {J PHYS CONDENS MAT}, journal = {JOURNAL OF PHYSICS-CONDENSED MATTER}, volume = {23}, unique-id = {22248657}, issn = {0953-8984}, year = {2011}, eissn = {1361-648X} } @article{MTMT:23223880, title = {The magnetite as adsorbent for some hazardous species from aqueous solutions: a review}, url = {https://m2.mtmt.hu/api/publication/23223880}, author = {Tanya, M Petrova and Ludmil, Fachikov and Jordan, Hristov}, journal-iso = {International Review of Chemical Engineering (IRECHE)}, journal = {International Review of Chemical Engineering (IRECHE)}, volume = {3}, unique-id = {23223880}, issn = {2035-1763}, year = {2011}, pages = {134-152} } @inproceedings{MTMT:34685402, title = {Synthesis of Magnetic Nanoparticles and Magnetic Fluids for Biomedical Applications}, url = {https://m2.mtmt.hu/api/publication/34685402}, author = {Vekas, L. and Tombacz, Etelka and Turcu, Rodica and Morjan, I. and Avdeev, M. V. and Krasia-Christoforou, Theodora and Socoliuc, V.}, booktitle = {Nanomedicine – Basic and Clinical Applications in Diagnostics and Therapy}, unique-id = {34685402}, abstract = {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}, keywords = {Biotechnology & Applied Microbiology; Nanoscience & Nanotechnology}, year = {2011}, pages = {35-3+}, orcid-numbers = {Tombacz, Etelka/0000-0002-2068-0459; Turcu, Rodica/0000-0002-6355-8381} } @article{MTMT:1842665, title = {Visible-Light-Enhanced Electrocatalytic Activity of a Polypyrrole/Magnetite Hybrid Electrode toward the Reduction of Dissolved Dioxygen}, url = {https://m2.mtmt.hu/api/publication/1842665}, author = {Janáky, Csaba and Endrődi, Balázs and Berkesi, Ottó and Visy, Csaba}, doi = {10.1021/jp105338f}, journal-iso = {J PHYS CHEM C}, journal = {JOURNAL OF PHYSICAL CHEMISTRY C}, volume = {114}, unique-id = {1842665}, issn = {1932-7447}, year = {2010}, eissn = {1932-7455}, pages = {19338-19344}, orcid-numbers = {Janáky, Csaba/0000-0001-5965-5173; Endrődi, Balázs/0000-0003-3237-9222; Berkesi, Ottó/0000-0001-6184-1768; Visy, Csaba/0000-0002-7722-9431} } @article{MTMT:1438142, title = {Synthesis and characterization of polypyrrole-magnetite-vitamin B12 hybrid composite electrodes}, url = {https://m2.mtmt.hu/api/publication/1438142}, author = {Janáky, Csaba and Endrődi, Balázs and Jedlovszky-Hajdú, Angéla and Visy, Csaba}, doi = {10.1007/s10008-009-0827-0}, journal-iso = {J SOLID STATE ELECTR}, journal = {JOURNAL OF SOLID STATE ELECTROCHEMISTRY}, volume = {14}, unique-id = {1438142}, issn = {1432-8488}, year = {2010}, eissn = {1433-0768}, pages = {339-346}, orcid-numbers = {Janáky, Csaba/0000-0001-5965-5173; Endrődi, Balázs/0000-0003-3237-9222; Jedlovszky-Hajdú, Angéla/0000-0003-2720-783X; Visy, Csaba/0000-0002-7722-9431} } @article{MTMT:20953865, title = {Synchrotron Speciation of Silver and Zinc Oxide Nanoparticles Aged in a Kaolin Suspension}, url = {https://m2.mtmt.hu/api/publication/20953865}, author = {Scheckel, KG and Luxton, TP and El, Badawy AM and Impellitteri, CA and Tolaymat, TM}, doi = {10.1021/es9032265}, journal-iso = {ENVIRON SCI TECHNOL}, journal = {ENVIRONMENTAL SCIENCE & TECHNOLOGY}, volume = {44}, unique-id = {20953865}, issn = {0013-936X}, year = {2010}, eissn = {1520-5851}, pages = {1307-1312} } @article{MTMT:22310930, title = {Aggregation and deaggregation behaviors of hematite nanoparticles at different pHs}, url = {https://m2.mtmt.hu/api/publication/22310930}, author = {Shen, X and Li, K -Y and Li, X -Q}, journal-iso = {CHINESE J ENVIRON SCI}, journal = {HUANJING KEXUE / CHINESE JOURNAL OF ENVIRONMENTAL SCIENCE}, volume = {31}, unique-id = {22310930}, issn = {0250-3301}, year = {2010}, pages = {2439-2444} } @article{MTMT:20953866, title = {Removal of hexavalent chromium [Cr(VI)] from aqueous solutions by the diatomite-supported/unsupported magnetite nanoparticles}, url = {https://m2.mtmt.hu/api/publication/20953866}, author = {Yuan, P and Liu, D and Fan, MD and Yang, D and Zhu, RL and Ge, F and Zhu, JX and He, HP}, doi = {10.1016/j.jhazmat.2009.08.129}, journal-iso = {J HAZARD MATER}, journal = {JOURNAL OF HAZARDOUS MATERIALS}, volume = {173}, unique-id = {20953866}, issn = {0304-3894}, year = {2010}, eissn = {1873-3336}, pages = {614-621} } @article{MTMT:1335846, title = {pH-dependent surface charging of metal oxides}, url = {https://m2.mtmt.hu/api/publication/1335846}, author = {Csákiné Tombácz, Etelka}, doi = {10.3311/pp.ch.2009-2.08}, journal-iso = {PERIOD POLYTECH CHEM ENG}, journal = {PERIODICA POLYTECHNICA-CHEMICAL ENGINEERING}, volume = {53}, unique-id = {1335846}, issn = {0324-5853}, year = {2009}, eissn = {1587-3765}, pages = {77-86}, orcid-numbers = {Csákiné Tombácz, Etelka/0000-0002-2068-0459} } @article{MTMT:1238030, title = {Surface charging, polyanionic coating and colloid stability of magnetite nanoparticles}, url = {https://m2.mtmt.hu/api/publication/1238030}, author = {Jedlovszky-Hajdú, Angéla and Nyergesné Illés, Erzsébet and Csákiné Tombácz, Etelka and Borbáth, I}, doi = {10.1016/j.colsurfa.2008.12.039}, journal-iso = {COLLOID SURFACE A}, journal = {COLLOIDS AND SURFACES A : PHYSICOCHEMICAL AND ENGINEERING ASPECTS}, volume = {347}, unique-id = {1238030}, issn = {0927-7757}, year = {2009}, eissn = {1873-4359}, pages = {104-108}, orcid-numbers = {Jedlovszky-Hajdú, Angéla/0000-0003-2720-783X; Nyergesné Illés, Erzsébet/0000-0002-2901-9616; Csákiné Tombácz, Etelka/0000-0002-2068-0459} } @article{MTMT:1185113, title = {Conducting Polymer-Based Electrode with Magnetic Behavior: Electrochemical Synthesis of Poly(3-thiophene-acetic-acid)/Magnetite Nanocomposite Thin Layers}, url = {https://m2.mtmt.hu/api/publication/1185113}, author = {Janáky, Csaba and Visy, Csaba and Berkesi, Ottó and Csákiné Tombácz, Etelka}, doi = {10.1021/jp809345b}, journal-iso = {J PHYS CHEM C}, journal = {JOURNAL OF PHYSICAL CHEMISTRY C}, volume = {113}, unique-id = {1185113}, issn = {1932-7447}, year = {2009}, eissn = {1932-7455}, pages = {1352-1358}, orcid-numbers = {Janáky, Csaba/0000-0001-5965-5173; Visy, Csaba/0000-0002-7722-9431; Berkesi, Ottó/0000-0001-6184-1768; Csákiné Tombácz, Etelka/0000-0002-2068-0459} } @{MTMT:22910225, title = {Introduction}, url = {https://m2.mtmt.hu/api/publication/22910225}, author = {Kosmulski, M}, booktitle = {Surface charging and points of zero charge}, unique-id = {22910225}, year = {2009}, pages = {1-38} } @book{MTMT:32245043, title = {Surface charging and points of zero charge}, url = {https://m2.mtmt.hu/api/publication/32245043}, isbn = {9781420051889}, author = {Kosmulski, M.}, doi = {10.1201/9781420051896}, publisher = {CRC Press}, unique-id = {32245043}, year = {2009}, pages = {1-1065} } @article{MTMT:20953870, title = {Superparamagnetic iron oxide nanoparticles: from preparations to in vivo MRI applications}, url = {https://m2.mtmt.hu/api/publication/20953870}, author = {Qiao, RR and Yang, CH and Gao, MY}, doi = {10.1039/b902394a}, journal-iso = {J MATER CHEM}, journal = {JOURNAL OF MATERIALS CHEMISTRY}, volume = {19}, unique-id = {20953870}, issn = {0959-9428}, year = {2009}, eissn = {1364-5501}, pages = {6274-6293} } @article{MTMT:20954049, title = {Variations in the cation exchange capacity of a ferralsol supplied with vinasse, under changing aeration conditions Comparison between CEC measuring methods}, url = {https://m2.mtmt.hu/api/publication/20954049}, author = {Renault, P and Cazevieille, P and Verdier, J and Lahlah, J and Clara, C and Favre, F}, doi = {10.1016/j.geoderma.2009.10.003}, journal-iso = {GEODERMA}, journal = {GEODERMA}, volume = {154}, unique-id = {20954049}, issn = {0016-7061}, year = {2009}, eissn = {1872-6259}, pages = {101-110} } @article{MTMT:1335843, title = {Water in Contact with Magnetite Nanoparticles, as Seen from Experiments and Computer Simulations}, url = {https://m2.mtmt.hu/api/publication/1335843}, author = {Csákiné Tombácz, Etelka and Jedlovszky-Hajdú, Angéla and Nyergesné Illés, Erzsébet and Nagyné László, Krisztina and Garberoglio, G and Jedlovszky, Pál}, doi = {10.1021/la901875f}, journal-iso = {LANGMUIR}, journal = {LANGMUIR}, volume = {25}, unique-id = {1335843}, issn = {0743-7463}, keywords = {SURFACE; MOLECULAR-DYNAMICS SIMULATIONS; ICE; MONTE-CARLO-SIMULATION; FORMIC-ACID; Activated carbons; DIELECTRIC-PROPERTIES; ISOTHERM; LIQUID WATER; ADSORPTION BEHAVIOR}, year = {2009}, eissn = {1520-5827}, pages = {13007-13014}, orcid-numbers = {Csákiné Tombácz, Etelka/0000-0002-2068-0459; Jedlovszky-Hajdú, Angéla/0000-0003-2720-783X; Nyergesné Illés, Erzsébet/0000-0002-2901-9616; Nagyné László, Krisztina/0000-0003-4499-3983} } @{MTMT:26971613, title = {Magnetic nanofluids: Synthesis and structure}, url = {https://m2.mtmt.hu/api/publication/26971613}, author = {Vékás, L and Avdeev, MV and Bica, D}, booktitle = {NanoScience in Biomedicine}, doi = {10.1007/978-3-540-49661-8_25}, publisher = {Springer Netherlands}, unique-id = {26971613}, year = {2009}, pages = {650-728} } @article{MTMT:20953872, title = {Montmorillonite-supported magnetite nanoparticles for the removal of hexavalent chromium [Cr(VI)] from aqueous solutions}, url = {https://m2.mtmt.hu/api/publication/20953872}, author = {Yuan, P and Fan, MD and Yang, D and He, HP and Liu, D and Yuan, AH and Zhua, JX and Chen, TH}, doi = {10.1016/j.jhazmat.2008.11.083}, journal-iso = {J HAZARD MATER}, journal = {JOURNAL OF HAZARDOUS MATERIALS}, volume = {166}, unique-id = {20953872}, issn = {0304-3894}, year = {2009}, eissn = {1873-3336}, pages = {821-829} } @article{MTMT:1238029, title = {Magnetite nanoparticles stabilized under physiological conditions for biomedical application}, url = {https://m2.mtmt.hu/api/publication/1238029}, author = {Jedlovszky-Hajdú, Angéla and Csákiné Tombácz, Etelka and Nyergesné Illés, Erzsébet and Bica, D and Vékás, L}, doi = {10.1007/2882_2008_111}, journal-iso = {PROG COLL POL SCI}, journal = {PROGRESS IN COLLOID AND POLYMER SCIENCE}, volume = {135}, unique-id = {1238029}, issn = {0340-255X}, abstract = {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.}, year = {2008}, pages = {29-37}, orcid-numbers = {Jedlovszky-Hajdú, Angéla/0000-0003-2720-783X; Csákiné Tombácz, Etelka/0000-0002-2068-0459; Nyergesné Illés, Erzsébet/0000-0002-2901-9616} } @article{MTMT:1238027, title = {Surfactant double layer stabilized magnetic nanofluids for biomedical application}, url = {https://m2.mtmt.hu/api/publication/1238027}, author = {Csákiné Tombácz, Etelka and Bica, D and Jedlovszky-Hajdú, Angéla and Nyergesné Illés, Erzsébet and Majzik, Andrea and Vékás, L}, doi = {10.1088/0953-8984/20/20/204103}, journal-iso = {J PHYS CONDENS MAT}, journal = {JOURNAL OF PHYSICS-CONDENSED MATTER}, volume = {20}, unique-id = {1238027}, issn = {0953-8984}, year = {2008}, eissn = {1361-648X}, orcid-numbers = {Csákiné Tombácz, Etelka/0000-0002-2068-0459; Jedlovszky-Hajdú, Angéla/0000-0003-2720-783X; Nyergesné Illés, Erzsébet/0000-0002-2901-9616} }