@article{MTMT:34762097, title = {Effect of Non‐Thermal Sulfur Hexafluoride Cold Plasma Modification on Surface Properties of Polyoxymethylene}, url = {https://m2.mtmt.hu/api/publication/34762097}, author = {Chodkowski, Michał and Terpiłowski, Konrad and Románszki, Loránd and Klébert, Szilvia and Mohai, Miklós and Károly, Zoltán}, doi = {10.1002/cphc.202300709}, journal-iso = {CHEMPHYSCHEM}, journal = {CHEMPHYSCHEM: A EUROPEAN JOURNAL OF CHEMICAL PHYSICS AND PHYSICAL CHEMISTRY}, unique-id = {34762097}, issn = {1439-4235}, abstract = {X‐ray photoelectron spectroscopy was employed to reveal the differences in the chemical structure of the topmost layer after plasma modification. It was found out that changes in the surface properties of the polymer could be observed even after 20 seconds of treatment. The surface becomes hydrophobic or superhydrophobic, with the water contact angles up to 160 degrees. Morphological changes and increased roughness can be observed only in the nanoscale, whereas the structure seems to be unaffected in the microscale. As a result of plasma modification a permanent hydrophobic effect was obtained on the polyoxymethylene surface.}, year = {2024}, eissn = {1439-7641}, orcid-numbers = {Terpiłowski, Konrad/0000-0002-8078-3644; Klébert, Szilvia/0000-0002-3107-3371} } @{MTMT:34756886, title = {Chapter 5. Nanostructured Materials and Electronic Nose Devices: Introduction}, url = {https://m2.mtmt.hu/api/publication/34756886}, isbn = {9789819713905}, author = {Shaban, Abdul and Tala, Abouhalkuma and Vastag, Gyöngyi and Telegdi, Lászlóné}, booktitle = {Nanostructured Materials for Electronic Nose}, unique-id = {34756886}, year = {2024}, orcid-numbers = {Shaban, Abdul/0000-0002-6365-0268} } @article{MTMT:34502195, title = {Conductive and photo-luminescent functionality of reconstituted particle layers prepared from electrodeposited PEDOT films}, url = {https://m2.mtmt.hu/api/publication/34502195}, author = {Marek, Tamás and Vincze, Tomáš and Szabó, Tamás and Keresztes, Zsófia}, doi = {10.1016/j.matchemphys.2024.128925}, journal-iso = {MATER CHEM PHYS}, journal = {MATERIALS CHEMISTRY AND PHYSICS}, volume = {314}, unique-id = {34502195}, issn = {0254-0584}, year = {2024}, eissn = {1879-3312}, orcid-numbers = {Vincze, Tomáš/0000-0002-6649-0204; Keresztes, Zsófia/0000-0002-1126-4779} } @article{MTMT:34502129, title = {Microfabricated Gold Aptasensors for the Label-Free Electrochemical Assay of Oxytetracycline Residues in Milk}, url = {https://m2.mtmt.hu/api/publication/34502129}, author = {Machairas, Vassilis and Anagnostoupoulos, Andreas and Soulis, Dionysios and Economou, Anastasios and Jakab, Kristóf and Melios, Nikitas and Keresztes, Zsófia and Tsekenis, George and Wang, Joseph and Speliotis, Thanassis}, doi = {10.3390/ecsa-10-16018}, journal-iso = {ENGENG PROC}, journal = {ENGINEERING PROCEEDINGS}, volume = {58}, unique-id = {34502129}, year = {2023}, eissn = {2673-4591}, orcid-numbers = {Soulis, Dionysios/0000-0003-3289-3408; Economou, Anastasios/0000-0003-4590-9261; Jakab, Kristóf/0000-0001-9326-7457; Keresztes, Zsófia/0000-0002-1126-4779; Tsekenis, George/0000-0002-5780-1074; Speliotis, Thanassis/0000-0002-4912-4683} } @article{MTMT:34412528, title = {Development of Effective Infrared Reflective Coatings}, url = {https://m2.mtmt.hu/api/publication/34412528}, author = {Mara, Józsefné and Bodnár, Attila-Ede and Trif, László and Telegdi, Lászlóné}, doi = {10.3390/app132312903}, journal-iso = {APPL SCI-BASEL}, journal = {APPLIED SCIENCES-BASEL}, volume = {13}, unique-id = {34412528}, abstract = {The adsorption of surfaces exposed to sunlight results in increased temperatures that can cause physical damage and an increase in energy consumption. Infrared reflective coatings can keep objects cooler and have significant benefits in a wide variety of application by reflecting infrared light and decreasing heat, reducing operating costs, improving energy efficiency in buildings and vehicles, and extending an objects’ lifespan. The main aim of our research was to develop coatings in a RAL7016 Anthracite grey color with minimum heat adsorption in the infrared wavelength range. This was achieved using a combination of infrared transparent and infrared reflective pigment built-in coatings applied on two primers: white and black. Infrared reflectivity or transparency, as well as surface temperature, was investigated as a function of the composition and concentration of pigments. These coatings were characterized by chromatic parameters, by total solar and infrared solar reflectance in the UV, visible, and infrared wavelength range, and by heat reflection. Among the coatings developed, two produced very effective controls for infrared reflectance and transparency, and they could control heat reflectance, resulting in a significant decrease in surface temperature.}, year = {2023}, eissn = {2076-3417}, orcid-numbers = {Trif, László/0000-0002-3960-1829} } @article{MTMT:34373745, title = {Determination of Electrode Kinetics Parameters from Dynamic Electrochemical Impedance Spectroscopy Measurements via Potential-Program Invariant Functions}, url = {https://m2.mtmt.hu/api/publication/34373745}, author = {Pajkossy, Tamás}, doi = {10.1021/acs.jpclett.3c02810}, journal-iso = {J PHYS CHEM LETT}, journal = {JOURNAL OF PHYSICAL CHEMISTRY LETTERS}, volume = {14}, unique-id = {34373745}, issn = {1948-7185}, year = {2023}, pages = {10599-10608} } @article{MTMT:34213219, title = {Effect of heat treatment on the structure of self-assembled undecenyl phosphonic aicd layers developed on different stainless steel surfaces}, url = {https://m2.mtmt.hu/api/publication/34213219}, author = {Kocsisné Pfeifer, Éva and Mink, János and Gyurika, István Gábor and Telegdi, Lászlóné}, doi = {10.33927/hjic-2023-12}, journal-iso = {HUNG J IND CHEM}, journal = {HUNGARIAN JOURNAL OF INDUSTRY AND CHEMISTRY}, volume = {51}, unique-id = {34213219}, issn = {0133-0276}, year = {2023}, eissn = {2450-5102}, pages = {7-14}, orcid-numbers = {Kocsisné Pfeifer, Éva/0000-0001-8956-1856; Gyurika, István Gábor/0000-0003-3442-455X} } @article{MTMT:34135928, title = {Comparative Analysis of pH and Target-Induced Conformational Changes of an Oxytetracycline Aptamer in Solution Phase and Surface-Immobilized Form}, url = {https://m2.mtmt.hu/api/publication/34135928}, author = {Jakab, Kristóf and Melios, Nikitas and Tsekenis, George and Shaban, Abdul and Horváth, Viola and Keresztes, Zsófia}, doi = {10.3390/biom13091363}, journal-iso = {BIOMOLECULES}, journal = {BIOMOLECULES}, volume = {13}, unique-id = {34135928}, issn = {2218-273X}, abstract = {To date, numerous aptamer-based biosensing platforms have been developed for sensitive and selective monitoring of target analytes, relying on analyte-induced conformational changes in the aptamer for the quantification of the analyte and the conversion of the binding event into a measurable signal. Despite the impact of these conformational rearrangements on sensor performance, the influence of the environment on the structural conformations of aptamers has rarely been investigated, so the link between parameters directly influencing aptamer folding and the ability of the aptamer to bind to the target analyte remains elusive. Herein, the effect a number of variables have on an aptamer’s 3D structure was examined, including the pH of the buffering medium, as well as the anchoring of the aptamer on a solid support, with the use of two label-free techniques. Circular dichroism spectroscopy was utilized to study the conformation of an aptamer in solution along with any changes induced to it by the environment (analyte binding, pH, composition and ionic strength of the buffer solution), while quartz crystal microbalance with dissipation monitoring was employed to investigate the surface-bound aptamer’s behavior and performance. Analysis was performed on an aptamer against oxytetracycline, serving as a model system, representative of aptamers selected against small molecule analytes. The obtained results highlight the influence of the environment on the folding and thus analyte-binding capacity of an aptamer and emphasize the need to deploy appropriate surface functionalization protocols in sensor development as a means to minimize the steric obstructions and undesirable interactions of an aptamer with a surface onto which it is tethered.}, year = {2023}, eissn = {2218-273X}, orcid-numbers = {Jakab, Kristóf/0000-0001-9326-7457; Tsekenis, George/0000-0002-5780-1074; Shaban, Abdul/0000-0002-6365-0268; Horváth, Viola/0000-0003-1014-7930; Keresztes, Zsófia/0000-0002-1126-4779} } @article{MTMT:34135710, title = {Anticorrosion activity of Phosphonic acid amphiphile in self-assembled molecular layer}, url = {https://m2.mtmt.hu/api/publication/34135710}, author = {Kocsisné Pfeifer, Éva and Gyurika, István Gábor and Telegdi, Lászlóné}, doi = {10.17675/2305-6894-2023-12-3-25}, journal-iso = {INTJ CORROS SCALE INHIB}, journal = {INTERNATIONAL JOURNAL OF CORROSION AND SCALE INHIBITION}, volume = {12}, unique-id = {34135710}, issn = {2305-6894}, year = {2023}, pages = {1261-1274}, orcid-numbers = {Kocsisné Pfeifer, Éva/0000-0001-8956-1856; Gyurika, István Gábor/0000-0003-3442-455X} } @article{MTMT:34106212, title = {The Influence of Reduced Graphene Oxide on the Texture and Chemistry of N,S-Doped Porous Carbon. Implications for Electrocatalytic and Energy Storage Applications}, url = {https://m2.mtmt.hu/api/publication/34106212}, author = {Samaniego Andrade, Samantha Kathiuska and SHIVA SHANKAR, LAKSHMI and Bakos, István and Klébert, Szilvia and Kun, Róbert and Mohai, Miklós and Nagy, Balázs and Nagyné László, Krisztina}, doi = {10.3390/nano13162364}, journal-iso = {NANOMATERIALS-BASEL}, journal = {NANOMATERIALS}, volume = {13}, unique-id = {34106212}, abstract = {In this work, we study the influence of reduced graphene oxide (rGO) on the morphology and chemistry of highly porous N,S-doped carbon cryogels. Simultaneously, we propose an easily upscalable route to prepare such carbons by adding graphene oxide (GO) in as-received suspended form to the aqueous solution of the ι-carrageenan and urea precursors. First, 1.25–5 wt% GO was incorporated into the dual-doped polymer matrix. The CO2, CO, and H2O emitted during the thermal treatments resulted in the multifaceted modification of the textural and chemical properties of the porous carbon. This facilitated the formation of micropores through self-activation and resulted in a substantial increase in the apparent surface area (up to 1780 m2/g) and pore volume (up to 1.72 cm3/g). However, adding 5 wt% GO led to overactivation. The incorporated rGO has an ordering effect on the carbon matrix. The evolving oxidative species influence the surface chemistry in a complex way, but sufficient N and S atoms (ca. 4 and >1 at%, respectively) were preserved in addition to the large number of developing defects. Despite the complexity of the textural and chemical changes, rGO increased the electrical conductivity monotonically. In alkaline oxygen reduction reaction (ORR) tests, the sample with 1.25 wt% GO exhibited a 4e− mechanism and reasonable stability, but a higher rGO content gradually compromised the performance of the electrodes. The sample containing 5 wt% GO was the most sensitive under oxidative conditions, but after stabilization it exhibited the highest gravimetric capacitance. In Li-ion battery tests, the coulombic efficiency of all the samples was consistently above 98%, indicating the high potential of these carbons for efficient Li-ion insertion and reinsertion during the charge–discharge process, thereby providing a promising alternative for graphite-based anodes. The cell from the 1.25 wt% GO sample showed an initial discharge capacity of 313 mAh/g, 95.1% capacity retention, and 99.3% coulombic efficiency after 50 charge–discharge cycles.}, year = {2023}, eissn = {2079-4991}, orcid-numbers = {SHIVA SHANKAR, LAKSHMI/0000-0003-0832-4387; Klébert, Szilvia/0000-0002-3107-3371; Nagyné László, Krisztina/0000-0003-4499-3983} }