"V polystyr\u00E9nov\u00FDch mikro\u010Dipech byly vodivostn\u00ED metodou stanovov\u00E1ny charakteristiky elektrokinetick\u00E9ho toku - elektroosmotick\u00E1 mobilta , zeta- potenci\u00E1l. Zji\u0161t\u011Bn\u00E9 hodnoty jsou 2.26 ? 0.12 x10-8 m2 V-1 s-1 a-29.0 ? 1.5 mV. Byl tak\u00E9 vytvo\u0159en matemetick\u00FD model umo\u017E\u0148uj\u00EDc\u00ED numerick\u00E9 simulace n\u00E1toku elektrolytu do mikrofluidn\u00EDho kan\u00E1lu p\u0159i pou\u017Eit\u00ED vodivostn\u00ED metody. V\u00FDsledky matematick\u00E9ho modelov\u00E1n\u00ED a experiment\u016F byly v dobr\u00E9m souhlasu."@cs . . "NL - Nizozemsko" . . "\u0160nita, Dalimil" . "Schrott, Walter" . "P(KAN208240651), Z(MSM6046137306)" . . . "000257413400091" . . "4"^^ . . "Electroosmotic characteristics of polystyrene microchips - experiments and modeling" . "85" . "22340" . "Electro-osmotic characteristics such as the electro-osmotic velocity, the electro-osmotic mobility and zeta-potential were determined in polystyrene microfluidic chips by the conductivity (electric current monitoring) method. The capillary microchips were fabricated with the use of micromilling and hot assembling techniques. A linear dependence of the electro-osmotic velocity on the voltage applied on 39 mm long microcapillaries was obtained. The electro-osmotic mobility and zeta-potential were found to be equal to 2.26 ? 0.12 x10-8 m2 V-1 s-1 and -29.0 ? 1.5 mV, respectively. The conductivity method is based on the electro-osmotic replacement of two electrolytes with different electric conductivities under a constant voltage. This fact leads to a non-linear distribution of the electric field intensity along the capillary. We developed two dynamical mathematical models describing the conductivity method. It was found that the formation of complex velocity fields and significant gradients of pressure" . "\u0160t\u011Bp\u00E1nek, Jakub" . "5-6" . "RIV/60461373:22340/08:00020224!RIV09-AV0-22340___" . "Elektroosmotick\u00E9 charakteristiky polystyr\u00E9nov\u00FDch mikro\u010Dip\u016F - experimenty a modelov\u00E1n\u00ED"@cs . "Microelectronic Engineering" . "[5BA5E74E7889]" . "Electroosmotic characteristics of polystyrene microchips - experiments and modeling" . . . "Electro-osmotic characteristics such as the electro-osmotic velocity, the electro-osmotic mobility and zeta-potential were determined in polystyrene microfluidic chips by the conductivity (electric current monitoring) method. The capillary microchips were fabricated with the use of micromilling and hot assembling techniques. A linear dependence of the electro-osmotic velocity on the voltage applied on 39 mm long microcapillaries was obtained. The electro-osmotic mobility and zeta-potential were found to be equal to 2.26 ? 0.12 x10-8 m2 V-1 s-1 and -29.0 ? 1.5 mV, respectively. The conductivity method is based on the electro-osmotic replacement of two electrolytes with different electric conductivities under a constant voltage. This fact leads to a non-linear distribution of the electric field intensity along the capillary. We developed two dynamical mathematical models describing the conductivity method. It was found that the formation of complex velocity fields and significant gradients of pressure"@en . "Electroosmotic characteristics of polystyrene microchips - experiments and modeling"@en . . . "Polystyrene microchip; DC electro-osmosis; Electro-osmotic mobility; Zeta-potential; Modeling"@en . "P\u0159ibyl, Michal" . "RIV/60461373:22340/08:00020224" . "Electroosmotic characteristics of polystyrene microchips - experiments and modeling"@en . "Elektroosmotick\u00E9 charakteristiky polystyr\u00E9nov\u00FDch mikro\u010Dip\u016F - experimenty a modelov\u00E1n\u00ED"@cs . . . "0167-9317" . . . . "365868" . . . "3"^^ . . . . . "4"^^ .