Dielectrophoretic (DEP) separation of live/dead cells on a glass slide functionalized with interdigitated 3D silicon ring microelectrodes

Xiaoxing Xing, Levent Yobas

Research output: Chapter in Book/Conference Proceeding/ReportConference Paper published in a bookpeer-review

3 Citations (Scopus)

Abstract

This paper describes a microfluidic device which offers a dielectrophoretic solution to cell sorting via interdigitated 3D silicon (Si) electrodes on a transparent glass substrate. The Si electrodes with a self-aligned array of lateral rings were fabricated through a single mask process on an anodically bonded Si-glass wafer. The device has been characterized for separation of live/dead human colorectal carcinoma cells at select flow rates and voltages. The live cell capture and dead cell removal efficiencies both reached 90% at an AC activation of 5Vp 450kHz applied against a flow rate up to 0.25ml/hr. The device disclosed here, with successful demonstration of continuous live/dead cell separation, offers great potential as a bioparticle sorting front-end module for a lab-on-a chip system.

Original languageEnglish
Title of host publicationMEMS 2014 - 27th IEEE International Conference on Micro Electro Mechanical Systems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages951-954
Number of pages4
ISBN (Print)9781479935086
DOIs
Publication statusPublished - 2014
Event27th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2014 - San Francisco, CA, United States
Duration: 26 Jan 201430 Jan 2014

Publication series

NameProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
ISSN (Print)1084-6999

Conference

Conference27th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2014
Country/TerritoryUnited States
CitySan Francisco, CA
Period26/01/1430/01/14

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