On-chip high-throughput manipulation of particles in a dielectrophoresis-assisted hydrophoretic focuser

Sheng Yan, Jun Zhang, Ming Li, Gursel Alici, Haiping Du, Yonggang Zhu, Weihua Li*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

Abstract

A novel concept of dielectrophoresis (DEP)-assisted hydrophoretic focusing of micro-particles is presented in this investigation. The DEP-assisted hydrophoretic micro-channel consists of crescent-shaped grooves and interdigitated electrodes. The crescent-shaped grooves was introduced to generate lateral pressure gradients that induce helical recirculations. A negative DEP force induced by interdigitated electrodes pushes the micro-particles into a higher level in the micro-channel. Particles passing through the microfluidic device are focused onto the sidewalls of the channel. In this device, both numerical and experimental particle trajectories were investigated and the focusing pattern of particles can be tuned by changing the external voltages.

Original languageEnglish
Title of host publicationMicroTAS 2014
Place of PublicationSan Diego, California
PublisherChemical and Biological Microsystems Society
Pages1752-1754
Number of pages3
ISBN (Print)9780979806476
Publication statusPublished - 2014
Externally publishedYes
EventThe 18th International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS 2014) - San Antonio, United States
Duration: 26 Oct 201430 Oct 2014
Conference number: 18th

Conference

ConferenceThe 18th International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS 2014)
CountryUnited States
CitySan Antonio
Period26/10/1430/10/14

Keywords

  • Microfluidics
  • dielectrophoresis
  • hydrophoresis
  • focuser

Fingerprint Dive into the research topics of 'On-chip high-throughput manipulation of particles in a dielectrophoresis-assisted hydrophoretic focuser'. Together they form a unique fingerprint.

Cite this