Electroosmotic characteristics of polystyrene microchips - experiments and modeling

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F08%3A00020224" target="_blank" >RIV/60461373:22340/08:00020224 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Electroosmotic characteristics of polystyrene microchips - experiments and modeling

Original language description

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 tobe 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 gradien

Czech name

Elektroosmotické charakteristiky polystyrénových mikročipů - experimenty a modelování

Czech description

V polystyrénových mikročipech byly vodivostní metodou stanovovány charakteristiky elektrokinetického toku - elektroosmotická mobilta , zeta- potenciál. Zjištěné hodnoty jsou 2.26 ? 0.12 x10-8 m2 V-1 s-1 a-29.0 ? 1.5 mV. Byl také vytvořen matemetický model umožňující numerické simulace nátoku elektrolytu do mikrofluidního kanálu při použití vodivostní metody. Výsledky matematického modelování a experimentů byly v dobrém souhlasu.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CI - Industrial chemistry and chemical engineering

OECD FORD branch

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Project

<a href="/en/project/KAN208240651" target="_blank" >KAN208240651: Study of interactions of biological macromolecules and nanolayers with a view to research of polymer microfluidic biosensors and therapeutic nanoparticles</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2008

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Microelectronic Engineering

ISSN

0167-9317

e-ISSN

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Volume of the periodical

85

Issue of the periodical within the volume

5-6

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

4

Pages from-to

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UT code for WoS article

000257413400091

EID of the result in the Scopus database

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