標題: Dielectrophoretic cell concentrator on EWOD-Based chips
作者: Huang, Po-Weng
Wang, Tsu-Te
Lin, Sheou-Wei
Chang, Yu-Chi
Fan, Shih-Kang
材料科學與工程學系奈米科技碩博班
Graduate Program of Nanotechnology , Department of Materials Science and Engineering
關鍵字: EWOD;DEP;electrokinetic forces
公開日期: 2006
摘要: Dielectrophoretic concentrators were successfully developed on a EWOD-based chip. In such a chip, two major electrokinetic forces were exerted on objects on different scales. EWOD is used to pump droplets on a mm scale, while DEP manipulates bio-particles on a pm scale. Both cells and polystyrene beads were used to demonstrate the concentration abilities by pDEP and nDEP forces, respectively. Since electrodes are covered with a dielectric layer, instead of creating nonuniform electric fields in the liquid, low frequency signals are consumed in the dielectric layer and providing EWOD. It is necessary to use high frequency signals to generate DEP on a EWOD-based chip. Concentration efficiency, measured by cell count chamber before and after experiments, is around 1.62 with single cycle of pDEP attraction.
URI: http://hdl.handle.net/11536/17186
http://dx.doi.org/10.1109/NEMS.2006.334779
ISBN: 978-1-4244-0139-0
DOI: 10.1109/NEMS.2006.334779
期刊: 2006 1st IEEE International Conference on Nano/Micro Engineered and Molecular Systems, Vols 1-3
起始頁: 1418
結束頁: 1421
Appears in Collections:Conferences Paper


Files in This Item:

  1. 000248485802088.pdf