BROWSE

Related Researcher

Author's Photo

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

ITEM VIEW & DOWNLOAD

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

Cited 3 times inthomson ciCited 4 times inthomson ci
Title
A new method to measure zeta potentials of microfabricated channels by applying a time-periodic electric field in a T-channel
Author
Shin, SangminKang, InseokCho, Yoon-Kyoung
Issue Date
2007-02
Publisher
ELSEVIER SCIENCE BV
Citation
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, v.294, no.1-3, pp.228 - 235
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.
URI
https://scholarworks.unist.ac.kr/handle/201301/5875
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=33846614266
DOI
10.1016/j.colsurfa.2006.08.024
ISSN
0927-7757
Appears in Collections:
BME_Journal Papers
Files in This Item:
There are no files associated with this item.

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU