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Panwong Kuntanawat Jirapat Ruenin Rungrueang Phatthanakun Phongsakorn Kunhorm Werasak Surareungchai Sompong Sukprasong Nimit Chomnawang 《Biomicrofluidics》2014,8(3)
A simple microwell-based microfluidic chip for microalgal cells trapping was
fabricated. An electrostatic
cell trapping
mechanism, enabled by a positively charged glass surface, was used. The chip was capable of capturing multiple algal
cell types.
In the case of filamentous Spirulina platensis, we observed single filament
occupancy of up to ∼30% available wells, as high as some previously proposed methods. Captured
filaments were not of any preferential size, suggesting well randomized cell trapping. It was found
that the electrostatic
attraction did not affect the cell
growth. Total replacement of liquid inside the wells could be achieved by pumping
new solutions via the inlet, making single cell experiments in controlled chemical conditions
possible. After the top layer of the chip was removed, cells in the wells could be simply transferred using a
micropipette, turning the chip into a platform for strain selection. 相似文献
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