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Issue 5, 2014
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Automated analysis of dynamic behavior of single cells in picoliter droplets

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Abstract

We present a droplet-based microfluidic platform to automatically track and characterize the behavior of single cells over time. This high-throughput assay allows encapsulation of single cells in micro-droplets and traps intact droplets in arrays of miniature wells on a PDMS–glass chip. Automated time-lapse fluorescence imaging and image analysis of the incubated droplets on the chip allows the determination of the viability of individual cells over time. In order to automatically track the droplets containing cells, we developed a simple method based on circular Hough transform to identify droplets in images and quantify the number of live and dead cells in each droplet. Here, we studied the viability of several hundred single isolated HEK293T cells over time and demonstrated a high survival rate of the encapsulated cells for up to 11 hours. The presented platform has a wide range of potential applications for single cell analysis, e.g. monitoring heterogeneity of drug action over time and rapidly assessing the transient behavior of single cells under various conditions and treatments in vitro.

Graphical abstract: Automated analysis of dynamic behavior of single cells in picoliter droplets

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Publication details

The article was received on 05 Oct 2013, accepted on 27 Nov 2013 and first published on 29 Nov 2013


Article type: Paper
DOI: 10.1039/C3LC51136G
Citation: Lab Chip, 2014,14, 931-937
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    Automated analysis of dynamic behavior of single cells in picoliter droplets

    M. A. Khorshidi, P. K. P. Rajeswari, C. Wählby, H. N. Joensson and H. Andersson Svahn, Lab Chip, 2014, 14, 931
    DOI: 10.1039/C3LC51136G

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