Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/25915
Title: Study of high-throughput cell electrofusion in a microelectrode-array chip
Authors: Cao, Y
Yang, J
Yin, ZQ
Luo, HY
Yang, M 
Hu, N
Yang, J
Huo, DQ
Hou, CJ
Jiang, ZZ
Zhang, RQ
Xu, R
Zheng, XL
Keywords: Cell fusion
Electrofusion
Microelectrode array
Microfluidic
Issue Date: 2008
Publisher: Springer Heidelberg
Source: Microfluidics and nanofluidics, 2008, v. 5, no. 5, p. 669-675 How to cite?
Journal: Microfluidics and Nanofluidics 
Abstract: A microfabricated high-throughput cell electrofusion chip with 1,368 pairs of high aspect ratio silicon microelectrodes is presented. These microelectrodes, which were distributed in six individual microscale cell-fusion chambers, were covered with titanium and gold thin film to improve their electric conductivity as well as surface hydrophobility. Six chambers having different electrode distances make the chip highly suitable for fusing cells with different sizes. A microfluidic platform was set up for flowing control, cell manipulation and also experimental observation. Cells for electrofusion were first aligned at the prearranged locations by the dielectrophoretic force between two counter-electrodes, which benefits the traverse of electric pulse through the cell-cell contacting point for electroporation. Several on-chip cell electrofusion experiments have been carried out on different kinds of animal cells and plant protoplasts. Compared with conventional electrofusion methods, higher fusion efficiency was achieved on this device for precisely forming micropores on the proximate membranes of two contacting cells, and high throughput was also obtained due to the use of a large number of microelectrodes for cell manipulation and fusion. Moreover, a much lower power supply was required for the shorter distance between two counter-electrodes.
URI: http://hdl.handle.net/10397/25915
ISSN: 1613-4982
DOI: 10.1007/s10404-008-0289-1
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