Petr Cervenka

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We propose an alternative kinetic description of electrochemical interactions. The model is based on the balances of mass and electric charge and the kinetic equations for the electrode reaction. The rate of electrochemical reaction is dependent on the surface concentration of electric charge. The current-voltage characteristics of a selected(More)
In this paper, we assess the performance and efficiency of an ideal traveling wave electroosmotic micropump with a continuous electrode. All simulations were performed in the combination of Matlab and COMSOL Multiphysics using a weak form. The mathematical model is based on the Poisson-Nernst-Planck-Navier-Stokes approach with fully coupled governing(More)
Electrokinetic properties and morphology of PDMS microfluidic chips intended for bioassays are studied. The chips are fabricated by a casting method followed by polymerization bonding. Microchannels are coated with 1% solution of bovine serum albumin (BSA) in Tris buffer. Albumin passively adsorbs on the PDMS surface. Electrokinetic characteristics(More)
Blind people can now use maps located at, thanks to the long-standing joint efforts of the ELSA Center at the Czech Technical University in Prague, the Teiresias Center at Masaryk University, and the company Conventional map underlays are automatically adjusted so that they could be read through touch after being printed on microcapsule(More)
A description is presented of an adapted ultrathermostat, respecting the requirement for a continuous decrease in temperature by 1 degree C per minute, as necessary for keeping the frozen cultures alive. Viability was evaluated in the primary cells of calf kidneys in the first subpassage and permanent cell lines PK and TL 72 after their freezing and(More)
We propose a kinetic mechanism of electrochemical interactions. We assume fast formation and recombination of electron donors D- and acceptors A+ on electrode surfaces. These mediators are continuously formed in the electrode matter by thermal fluctuations. The mediators D- and A+, chemically equivalent to the electrode metal, enter electrochemical(More)