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Cho, Yoon-Kyoung
Integrated Nano-Biotech Lab (INBL)
Research Interests
  • Microfluidics, Lab-on-a-chip, personalized biomedical diagnostics, nanobioengineering

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A new method to measure zeta potentials of microfabricated channels by applying a time-periodic electric field in a T-channel

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dc.contributor.author Shin, Sangmin ko
dc.contributor.author Kang, Inseok ko
dc.contributor.author Cho, Yoon-Kyoung ko
dc.date.available 2014-09-11T07:01:26Z -
dc.date.created 2014-09-05 ko
dc.date.issued 2007-02 ko
dc.identifier.citation COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, v.294, no.1-3, pp.228 - 235 ko
dc.identifier.issn 0927-7757 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/5875 -
dc.description.abstract A new method is proposed to measure the zeta potential of microfabricated channel surfaces. It is based on the fact that confluent flow streams in a T-channel show oscillation under a time-periodic electric field. When a suitable frequency is chosen, the oscillation amplitude is a monotonic function of the zeta potential of the surfaces. The zeta potential value can be estimated based on the experimentally measured oscillation amplitude and the 3-D numerical simulation results which can convert the oscillation amplitude to the zeta potential. We conducted experiments with three kinds of buffers with different pHs and ionic valences for the validation of the newly proposed method. The zeta potential values predicted by the new method were in good agreement with the previously reported values in the literature. ko
dc.description.statementofresponsibility close -
dc.language 영어 ko
dc.publisher ELSEVIER SCIENCE BV ko
dc.title A new method to measure zeta potentials of microfabricated channels by applying a time-periodic electric field in a T-channel ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-33846614266 ko
dc.identifier.wosid 000244617500029 ko
dc.type.rims ART ko
dc.description.wostc 3 *
dc.description.scopustc 4 *
dc.date.tcdate 2015-05-06 *
dc.date.scptcdate 2014-09-05 *
dc.identifier.doi 10.1016/j.colsurfa.2006.08.024 ko
dc.identifier.url http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=33846614266 ko
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