Lab-on-a-chip device for continuous particle and cell separation based on electrical properties via alternating current dielectrophoresis


Çetin B., Li D.

Electrophoresis, cilt.31, sa.18, ss.3035-3043, 2010 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 31 Sayı: 18
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1002/elps.201000107
  • Dergi Adı: Electrophoresis
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.3035-3043
  • Anahtar Kelimeler: Alternating current dielectrophoresis, Microfluidics, Particle separation
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

A novel alternating current-dielectrophoresis microfluidic chip was developed to separate particles and cells continuously by their electric properties. The flow is induced by pressure gradient. A pair of simple, 3-D electrodes was used to achieve a localized nonuniform electric field. Dielectrophoretic force is generated in the transverse direction to the flow by inserting the electrodes along the channel side walls. The localized electric field is important to reduce the Joule heating and any adverse effects of electrical field on biological cells. Latex particles of different sizes and white blood cells (8-12 μm) were manipulated successfully and the separation of 10 μm latex particles and white blood cells based on their different electrical properties was demonstrated. © 2010 Wiley-VCH Verlag GmbH & Co. KGaA.