Electrode-rail dielectrophoretic assembly effect: formation of single curvilinear particle-chains on spiral microelectrodes

作者: Xiaolu Zhu , Zhiqiang Gao , Zhifeng Yin , Zhonghua Ni

DOI: 10.1007/S10404-010-0600-9

关键词:

摘要: An electrode-rail dielectrophoretic (DEP) assembly effect for microparticle pearl-chain formation is reported. Under this effect, single curvilinear particle chains are formed along spiral strip electrodes in a microfluidic device actuated by alternating signals. Moreover, the snaking traveling movement of entire individual curving pearl chain electrode also observed. The could be mainly interpreted specific distribution electric field above microelectrode array. Further, inter-attracting DEP force between neighboring particles generated when originally uniform strongly perturbed due to existence themselves. chain’s rationalized non-ignorable ohmic resistance electrodes, which leads nonuniformity strength and elongation direction.

参考文章(23)
Jie Wu, Meng Lian, Kai Yang, Micropumping of biofluids by alternating current electrothermal effects Applied Physics Letters. ,vol. 90, pp. 234103- ,(2007) , 10.1063/1.2746413
Seungkyung Park, Ali Beskok, Alternating Current Electrokinetic Motion of Colloidal Particles on Interdigitated Microelectrodes Analytical Chemistry. ,vol. 80, pp. 2832- 2841 ,(2008) , 10.1021/AC7024859
Masato Suzuki, Tomoyuki Yasukawa, Hitoshi Shiku, Tomokazu Matsue, None, Negative dielectrophoretic patterning with colloidal particles and encapsulation into a hydrogel. Langmuir. ,vol. 23, pp. 4088- 4094 ,(2007) , 10.1021/LA063075A
Islamshah Amlani, Adam M. Rawlett, Larry A. Nagahara, Raymond K. Tsui, An approach to transport measurements of electronic molecules Applied Physics Letters. ,vol. 80, pp. 2761- 2763 ,(2002) , 10.1063/1.1469655
Robert Kretschmer, Wolfgang Fritzsche, Pearl Chain Formation of Nanoparticles in Microelectrode Gaps by Dielectrophoresis Langmuir. ,vol. 20, pp. 11797- 11801 ,(2004) , 10.1021/LA0482352
Tomokazu Matsue, Norio Matsumoto, Isamu Uchida, None, Rapid micropatterning of living cells by repulsive dielectrophoretic force Electrochimica Acta. ,vol. 42, pp. 3251- 3256 ,(1997) , 10.1016/S0013-4686(97)00175-8
Nikolai Markarian, Mike Yeksel, Boris Khusid, Kenneth R. Farmer, Andreas Acrivos, Particle motions and segregation in dielectrophoretic microfluidics Journal of Applied Physics. ,vol. 94, pp. 4160- 4169 ,(2003) , 10.1063/1.1600845
Meng Lian, Jie Wu, Microfluidic flow reversal at low frequency by AC electrothermal effect Microfluidics and Nanofluidics. ,vol. 7, pp. 757- 765 ,(2009) , 10.1007/S10404-009-0433-6