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CHEN De-liang, FENG Cai-ling, QIN Shui-jie. Study on measuring surface-charges of cells in a quartz microchannel[J]. LASER TECHNOLOGY, 2009, 33(6): 561-564. DOI: 10.3969/j.issn.1001-3806.2009.06.001
Citation: CHEN De-liang, FENG Cai-ling, QIN Shui-jie. Study on measuring surface-charges of cells in a quartz microchannel[J]. LASER TECHNOLOGY, 2009, 33(6): 561-564. DOI: 10.3969/j.issn.1001-3806.2009.06.001

Study on measuring surface-charges of cells in a quartz microchannel

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  • Received Date: January 05, 2009
  • Revised Date: February 28, 2009
  • Published Date: December 24, 2009
  • The surface-charges of cells are very important to study the vital characteristic of cells.Common methods only measure the changes of cell electrophoresis mobility (EPM) instead of the quantity of cell surface-charges.In order to measure the surface-charges of cells,a novel method to measure the surface-charges of cells by means of optical tweezers and electrophoresis in a microchannel was designed.With this method,the quantity of the electric charge of yeast cells was measured about 10-10℃.Experimental results prove that this method can be used to measure the changes of cell surface-charges.A lab-onchip (LOC) for measuring the surface-charge of cells might be developed after improving this measuring system.
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