Journal
ANALYTICAL BIOCHEMISTRY
Volume 396, Issue 2, Pages 173-179Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ab.2009.09.018
Keywords
Microfluidics; Single cell array; Parallel analysis; CRAC channel
Funding
- Research Grants Council of the Hong Kong [CityU 102904]
- Shenzhen Municiple Government
- Tsinghua-CityU
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High-throughput single cell analysis is required for understanding and predicting the complex stochastic responses of individual cells in changing environments. We have designed a microfluidic device consisting of parallel, independent channels with cell-docking structures for the formation of an array of individual cells. The microfluidic cell array was used to quantify single cell responses and the distribution of response patterns of calcium channels among a population of individual cells. In this device, 15 cell-docking units in each channel were fabricated with each unit containing 5 sandbag structures, such that an array of individual cells was formed in 8 independent channels. Single cell responses to different treatments in different channels were monitored in parallel to study the effects of the specific activator and inhibitor of the Ca2+ release-activated Ca2+ (CRAC) channels. Multichannel detection was performed to obtain the response patterns of the population of cells within this single cell array. The results demonstrate that it is possible to acquire single cell features in multichannels simultaneously with passive structural control, which provides an opportunity for high-throughput single cell response analysis in a microfluidic chip. (C) 2009 Elsevier Inc. All rights reserved.
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