@{MTMT:2821485, title = {Different Sized Silver-Citrate Nanoparticles Kill Cancer Cells Through the (Re)Activation of the P53 Dependent Apoptotic Pathway}, url = {https://m2.mtmt.hu/api/publication/2821485}, author = {Kovács, Dávid and Csilla, Keskeny and Igaz, Nóra and Tímea, Tóth and Kónya, Zoltán and Boros, Imre Miklós and Csontné Kiricsi, Mónika}, booktitle = {SIWAN6: 6th Szeged International Workshop on Advances in Nanoscience}, unique-id = {2821485}, year = {2014}, pages = {100-100}, orcid-numbers = {Igaz, Nóra/0000-0003-1580-4397; Kónya, Zoltán/0000-0002-9406-8596; Boros, Imre Miklós/0000-0001-8504-9687; Csontné Kiricsi, Mónika/0000-0002-8416-2052} } @inproceedings{MTMT:1157535, title = {Improving the performance of functionalized carbon nanotube thin film sensors by fluctuation enhanced sensing}, url = {https://m2.mtmt.hu/api/publication/1157535}, author = {Kukovecz, Ákos and Heszler, Péter and Kordás, Krisztián and Roth, S and Kónya, Zoltán and Haspel, Henrik and Ionescu, R and Sápi, András and Maklin, J and Mohl, M and Gingl, Zoltán and Vajtai, R and Kiricsi, Imre and Ajayan, PM}, booktitle = {Carbon Nanotubes and Associated Devices}, doi = {10.1117/12.794176}, unique-id = {1157535}, abstract = {Thin films of functionalized single-wall carbon nanotubes were deposited on silicon chips by drop-coating and inkjet printing. These sensors were subjected to 1-100 ppm NOx, CO, H2S and H2O vapor in synthetic air. We have found that besides the expected changes in the electrical resistance of the film, there are also characterteristic differences in the noise pattern of the resistance vs. time function. This phenomenon is called fluctuation enhanced sensing and it can be used to increase the amount of information gathered from a carbon nanotube sensor device. The main advantage of fluctuation enhanced sensing is the improved selectivity of the sensor even if changes in electical resistance are rather low. Combined with differentiation based on modifying the adsorption characterstics of the nanotubes (e.g. by covalent functionalization), fluctuation enhanced sensing appears to be a very useful method for bringing cheap and reliable carbon nanotube based chemical sensors to the market.}, keywords = {NANOCOMPOSITES; CARBON; SILICON; CARBON NANOTUBES; NOISE; sensors; nanostructured materials; thin films; ADSORPTION; Nanotubes; Nanostructures; CHEMICAL SENSORS; Functionalized; Thick films; Carbon films; Thin film devices; Differentiation (calculus); Single-wall carbon nanotubes; carbon nanotube; Semiconducting silicon compounds; thin film; A carbons; gas sensor; Single-walled carbon nanotubes (SWCN); Time functions; Electrical resistances; Synthetic airs; Silicon chips; Noise patterns; Ink jet printings; Functionalized carbon nanotubes; Covalent functionalization; Amount of informations; fluctuation enhanced sensing}, year = {2008}, orcid-numbers = {Kukovecz, Ákos/0000-0003-0716-9557; Kónya, Zoltán/0000-0002-9406-8596; Haspel, Henrik/0000-0002-1362-2752; Sápi, András/0000-0001-6557-0731; Gingl, Zoltán/0000-0001-6570-2685} } @article{MTMT:20563535, title = {CO hydrogenation over cobalt and iron catalysts supported over multiwall carbon nanotubes: Effect of preparation}, url = {https://m2.mtmt.hu/api/publication/20563535}, author = {Guczi, László and Stefler, G and Geszti, Olga and Koppany, Zs and Kónya, Zoltán and Molnar, E and Urban, M and Kiricsi, Imre}, doi = {10.1016/j.jcat.2006.08.012}, journal-iso = {J CATAL}, journal = {JOURNAL OF CATALYSIS}, volume = {244}, unique-id = {20563535}, issn = {0021-9517}, year = {2006}, eissn = {1090-2694}, pages = {24-32}, orcid-numbers = {Kónya, Zoltán/0000-0002-9406-8596} } @inproceedings{MTMT:1322570, title = {Mechanical degradation of carbon nanotubes. ESR investigations}, url = {https://m2.mtmt.hu/api/publication/1322570}, author = {Chipara, MD and Kukovecz, Ákos and Kónya, Zoltán and Zaleski, JM and Chipara, M}, booktitle = {Degradation processes in nanostructured materials}, doi = {10.1557/PROC-0887-Q01-05}, unique-id = {1322570}, year = {2006}, pages = {21-26}, orcid-numbers = {Kukovecz, Ákos/0000-0003-0716-9557; Kónya, Zoltán/0000-0002-9406-8596} } @article{MTMT:1283188, title = {Synthesis of Multiwall Carbon Nanotubes in the Pore System and/or on the Outer Surface of Mesoporous MCM-41 Structures of Various Morphology}, url = {https://m2.mtmt.hu/api/publication/1283188}, author = {Urbán, Mónika and Kónya, Zoltán}, doi = {10.1556/NANO.1.2006.1.5}, journal-iso = {NANOPAGES}, journal = {NANOPAGES}, volume = {1}, unique-id = {1283188}, issn = {1787-4033}, abstract = {Multiwall carbon nanotubes were synthesized either on the outer surface of iron containing mesoporous silicates using catalytic chemical vapor deposition (CCVD) or in the pore system of morphologically different mesoporous materials (hexagonal or spherical shapes) with graphitization of the template molecules. Transmission electron microscopy (TEM) study shows that the CCVD method resulted in long, bent and well graphitized carbon nanotubes on impregnated samples irrespective to the morphology of the silicate. Isomorphously substituted spherical MCM-41 with low Si/Fe ratio was found to be active catalysts for carbon nanotube production in CCVD as well. Synthesis of MWNTs with graphitization of template molecules in the pores of MCM-41 was successful in hexagonal MCM-41 samples irrespective that they contain or not iron in the silicate framework. Carbon nanotube formation was not observed in spherical derivatives of these samples during the graphitization process.}, year = {2006}, eissn = {1788-0718}, pages = {97-117}, orcid-numbers = {Kónya, Zoltán/0000-0002-9406-8596} } @{MTMT:1233496, title = {Carbon Nanotubes as Ceramic Matrix Reinforcements}, url = {https://m2.mtmt.hu/api/publication/1233496}, author = {Balázsi, Csaba and Wéber, Ferenc and Kövér, Zsuzsanna Ilona and Kónya, Zoltán and Kasztovszky, Zsolt and Vértesy, Zofia and Biró, László Péter and Kiricsi, Imre and Arató, Péter}, booktitle = {Carbon Nanotubes}, doi = {10.1007/1-4020-4574-3_38}, unique-id = {1233496}, year = {2006}, pages = {221-222}, orcid-numbers = {Balázsi, Csaba/0000-0003-4219-8783; Kónya, Zoltán/0000-0002-9406-8596; Vértesy, Zofia/0000-0003-4539-9839; Biró, László Péter/0000-0001-7261-0420; Arató, Péter/0000-0003-2259-632X} } @article{MTMT:1190379, title = {Novel Silicon Nitride - Carbon Nanotube Composites}, url = {https://m2.mtmt.hu/api/publication/1190379}, author = {Balázsi, Csaba and Czigány, Zsolt and Wéber, Ferenc and Kónya, Zoltán and Vértesy, Zofia and Biró, László Péter and Kiricsi, Imre and Arató, Péter}, journal-iso = {POWDER METALL PROGR}, journal = {POWDER METALLURGY PROGRESS: JOURNAL OF SCIENCE AND TECHNOLOGY OF PARTICLE MATERIALS}, volume = {6}, unique-id = {1190379}, issn = {1335-8987}, year = {2006}, eissn = {1339-4533}, pages = {80-87}, orcid-numbers = {Balázsi, Csaba/0000-0003-4219-8783; Czigány, Zsolt/0000-0001-6410-8801; Kónya, Zoltán/0000-0002-9406-8596; Vértesy, Zofia/0000-0003-4539-9839; Biró, László Péter/0000-0001-7261-0420; Arató, Péter/0000-0003-2259-632X} } @inproceedings{MTMT:1190356, title = {Development of CNT-Silicon Nitrides with Improved Mechanical and Electrical Properties}, url = {https://m2.mtmt.hu/api/publication/1190356}, author = {Balázsi, Csaba and Wéber, Ferenc and Arató, Péter and Fenyi, B and Hegman, N and Kónya, Zoltán and Kiricsi, Imre and Vértesy, Zofia and Biró, László Péter}, booktitle = {11th International Ceramics Congress}, doi = {10.4028/www.scientific.net/AST.45.1723}, unique-id = {1190356}, year = {2006}, pages = {1723-1728}, orcid-numbers = {Balázsi, Csaba/0000-0003-4219-8783; Arató, Péter/0000-0003-2259-632X; Kónya, Zoltán/0000-0002-9406-8596; Vértesy, Zofia/0000-0003-4539-9839; Biró, László Péter/0000-0001-7261-0420} } @article{MTMT:1189925, title = {Synthesis, characterization and use of coiled carbon nanotubes}, url = {https://m2.mtmt.hu/api/publication/1189925}, author = {Szabo, A and Fonseca, A and Biró, László Péter and Kónya, Zoltán and Kiricsi, Imre and Volodin, A and Hasendonck, V and Nagy, JB}, doi = {10.1556/Nano.1.2006.3.1}, journal-iso = {NANOPAGES}, journal = {NANOPAGES}, volume = {1}, unique-id = {1189925}, issn = {1787-4033}, year = {2006}, eissn = {1788-0718}, pages = {263-293}, orcid-numbers = {Biró, László Péter/0000-0001-7261-0420; Kónya, Zoltán/0000-0002-9406-8596} } @article{MTMT:1146444, title = {Surface enhanced Raman spectroscopy of flat and curved carbon cluster}, url = {https://m2.mtmt.hu/api/publication/1146444}, author = {Holzl, C and Kuzmany, H and Hulman, M and Wu, J and Mullen, K and Boroviak-Palen, E and Kalenczuk, RJ and Kukovecz, Ákos}, doi = {10.1002/pssb.200669221}, journal-iso = {PHYS STAT SOL B BASIC RES}, journal = {PHYSICA STATUS SOLIDI B-BASIC RESEARCH}, volume = {243}, unique-id = {1146444}, issn = {0370-1972}, abstract = {Hexa-perihexabenzocarbonate (HBC) are small cluster of a graphene plane with various side groups for stabilization. Due to theire ate geometry they are ideal candidates to study surface enhanced Raman spectroscopy (SERS). Very thin films HBC were vaopur deposited to different SERS-active Ag-surfaces. The enhancement of the Raman signal was studied with the goal to develop an Ag-surface of optimum enhancement, for multiple use and very simple sample preparation. For the current surface the observed enhancement is up to 10(6). For SWNT filled with Ag-particles the SERS effect could also be shown - but enhancement was only a factor 10. (c) 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.}, year = {2006}, eissn = {1521-3951}, pages = {3142-3145}, orcid-numbers = {Kukovecz, Ákos/0000-0003-0716-9557} }