Zobrazeno 1 - 10
of 342
pro vyhledávání: '"Alexander KROMKA"'
Autor:
Stepan Stehlik, Ondrej Szabo, Ekaterina Shagieva, Daria Miliaieva, Alexander Kromka, Zuzana Nemeckova, Jiri Henych, Jan Kozempel, Evgeny Ekimov, Bohuslav Rezek
Publikováno v:
Carbon Trends, Vol 14, Iss , Pp 100327- (2024)
Hydrogenated nanodiamonds (NDs) get increasing attention as promising nanomaterial in biology as well as optoelectronics. This study shows how the ND synthesis process and ND size are reflected in their different colloidal/hydration and electronic pr
Externí odkaz:
https://doaj.org/article/eafad3b5b9b84bc7a122035c7bdedaf6
Autor:
Juvissan Aguedo, Marian Vojs, Martin Vrška, Marek Nemcovic, Zuzana Pakanova, Katerina Aubrechtova Dragounova, Oleksandr Romanyuk, Alexander Kromka, Marian Varga, Michal Hatala, Marian Marton, Jan Tkac
Publikováno v:
Nanomaterials, Vol 14, Iss 15, p 1241 (2024)
We investigated the use of boron-doped diamond (BDD) with different surface morphologies for the enhanced detection of nine different peptides by matrix-assisted laser desorption/ionisation mass spectrometry (MALDI-MS). For the first time, we compare
Externí odkaz:
https://doaj.org/article/df6734d9cc2847a298a76650c4e3f75f
Autor:
Oleksandr Romanyuk, Štěpán Stehlík, Josef Zemek, Kateřina Aubrechtová Dragounová, Alexander Kromka
Publikováno v:
Nanomaterials, Vol 14, Iss 7, p 590 (2024)
The modification of nanodiamond (ND) surfaces has significant applications in sensing devices, drug delivery, bioimaging, and tissue engineering. Precise control of the diamond phase composition and bond configurations during ND processing and surfac
Externí odkaz:
https://doaj.org/article/bd1bd39e8ba349dcbe0943156e9857f5
Autor:
Ivana Nemcakova, Andrej Litvinec, Vaclav Mandys, Stepan Potocky, Martin Plencner, Martina Doubkova, Ondrej Nanka, Veronika Olejnickova, Barbora Sankova, Martin Bartos, Egor Ukraintsev, Oleg Babčenko, Lucie Bacakova, Alexander Kromka, Bohuslav Rezek, David Sedmera
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-17 (2022)
Abstract The present study investigates the effect of an oxidized nanocrystalline diamond (O-NCD) coating functionalized with bone morphogenetic protein 7 (BMP-7) on human osteoblast maturation and extracellular matrix mineralization in vitro and on
Externí odkaz:
https://doaj.org/article/60e7ffa813d74685ab0349533b782bbd
Autor:
Mária Domonkos, Alexander Kromka
Publikováno v:
Symmetry, Vol 14, Iss 12, p 2642 (2022)
Nanosphere lithography (NSL) is a cost- and time-effective technique for the fabrication of well-ordered large-area arrays of nanostructures. This paper reviews technological challenges in NSL mask preparation, its modification, and quality control.
Externí odkaz:
https://doaj.org/article/c0cd8f87dda8499d98b3f318ffdd0f41
Autor:
Marián Varga, Štepán Potocký, Mária Domonkos, Tibor Ižák, Oleg Babčenko, Alexander Kromka
Publikováno v:
ACS Omega, Vol 4, Iss 5, Pp 8441-8450 (2019)
Externí odkaz:
https://doaj.org/article/aa5eb1c123fe4154baef9316f55326ee
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 9, Iss 1, Pp 2287-2296 (2018)
We have fabricated two-dimensional photonic crystals (PhCs) on the surface of Si nanocrystal-rich SiO2 layers with the goal to maximize the photoluminescence extraction efficiency in the normal direction. The fabricated periodic structures consist of
Externí odkaz:
https://doaj.org/article/85a57e15cc3049abb14dc15d620917c6
Autor:
Marina Davydova, Alexandr Laposa, Jiri Smarhak, Alexander Kromka, Neda Neykova, Josef Nahlik, Jiri Kroutil, Jan Drahokoupil, Jan Voves
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 9, Iss 1, Pp 22-29 (2018)
Microstructured single- and double-layered sensor devices based on p-type hydrogen-terminated nanocrystalline diamond (NCD) films and/or n-type ZnO nanorods (NRs) have been obtained via a facile microwave-plasma-enhanced chemical vapour deposition pr
Externí odkaz:
https://doaj.org/article/9f48d7f2828843c3a088a09c56601dd6
Autor:
Irena Bydzovska, Ekaterina Shagieva, Ivan Gordeev, Oleksandr Romanyuk, Zuzana Nemeckova, Jiri Henych, Lukas Ondic, Alexander Kromka, Stepan Stehlik
Publikováno v:
Nanomaterials, Vol 11, Iss 9, p 2251 (2021)
Apart from the frequently used high-temperature annealing of detonation nanodiamonds (DNDs) in an inert environment, laser irradiation of DNDs in a liquid can be effectively used for onion-like carbon (OLC) formation. Here, we used fully de-aggregate
Externí odkaz:
https://doaj.org/article/61613b6a90aa437fb800aaadcff2f6a4
Publikováno v:
Sensors, Vol 21, Iss 16, p 5390 (2021)
A nanocrystalline diamond (NCD) layer is used as an active (sensing) part of a conductivity gas sensor. The properties of the sensor with an NCD with H-termination (response and time characteristic of resistance change) are measured by the same equip
Externí odkaz:
https://doaj.org/article/c316c5cb47874563b0ab09154d4576ec