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Computational study of cellular assembly on hydrophobic/hydrophilic micro-patterns
Ukraintsev, Egor ; Brož, A. ; Kalbáčová, M.H. ; Kromka, Alexander ; Rezek, Bohuslav
We develop simple onedimensional stochastic model of cell behavior on chemically patterned surfaces that is based on three key parameters: speed of cell movement (motility) across substrate, probability of cell adhesion to substrate, and probability of cell division on substrate when adhered on substrate. Amount of adhered cells on hydrophobic and hydrophilic regions is calculated as function of time (number of cycles up to 2000). The model is correlated with in-vitro data obtained within 48 h in real time. We show that this simple stochastic model with the three parameters (where cell motility is the most important one) can describe with high accuracy the experimental data and thereby explain the observed preferential cell assembly on hydrophilic/hydrophobic micro-patterns (up to 200 um width).
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Growth of diamond thin films: a review
Kromka, Alexander ; Potocký, Štěpán ; Rezek, Bohuslav
Diamond is shown as an extraordinary material which offers promising solution for variety of fundamental studies and industrial uses. Here, growth of synthetic diamond films at low pressures (1 atm) and low temperatures (<1000°C) from carbon consisting gas mixtures is discussed. Variety of chemical vapor deposition techniques are reviewed, their advantages and disadvantages are pointed out too.
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Intrinsic and boron-doped diamond microstructured for electrochemical batteries
Kromka, Alexander ; Babchenko, Oleg ; Rezek, Bohuslav ; Ižák, Tibor ; Libertínová, Jitka ; Hruška, Karel ; Nyholm, L. ; de Oliviera Jorge, E.
Diamond - widest electrochemical window, excellentfor covalent binding of molecules, effective csarge transfer.
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High resolution ATR FTIR spectroscopy of hydrogenated diamond nanoparticles using NCD-coated prism
Remeš, Zdeněk ; Kozak, Halyna ; Rezek, Bohuslav ; Babchenko, Oleg ; Kromka, Alexander ; Girard, H. ; Petit, T. ; Arnault, J. ; Bergonzo, P.
Crucial part of successful ATR - linear antenna CVD NCD. ATR IR spectroscopy compared to transmittance FTIR spectroscopy. IR spectra of diamant nanoparticles adsorbed on NCD surface. Advances of ATR FTIR - higher sensitivity, better resolution, reproducibility.
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