Journal
CHEMICAL SOCIETY REVIEWS
Volume 39, Issue 3, Pages 974-984Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b917851a
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Funding
- ONR [N000140610630]
- NSF CRC [0526693]
- NIH [DP1 OD003584]
- OFFICE OF THE DIRECTOR, NATIONAL INSTITUTES OF HEALTH [DP1OD003584] Funding Source: NIH RePORTER
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Rare cells can be difficult to analyze because they either occur in low numbers or coexist with a more abundant cell type, yet their detection is crucial for diagnosing disease and maintaining human health. In this tutorial review, we introduce the concept of microfluidic stochastic confinement for use in detection and analysis of rare cells. Stochastic confinement provides two advantages: (1) it separates rare single cells from the bulk mixture and (2) it allows signals to locally accumulate to a higher concentration around a single cell than in the bulk mixture. Microfluidics is an attractive method for implementing stochastic confinement because it provides simple handling of small volumes. We present technologies for microfluidic stochastic confinement that utilize both wells and droplets for the detection and analysis of single cells. We address how these microfluidic technologies have been used to observe new behavior, increase speed of detection, and enhance cultivation of rare cells. We discuss potential applications of microfluidic stochastic confinement to fields such as human diagnostics and environmental testing.
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