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Related Experiment Video

Updated: May 27, 2026

Live-cell Imaging of Single-Cell Arrays (LISCA) - a Versatile Technique to Quantify Cellular Kinetics
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Trapping cells on a stretchable microwell array for single-cell analysis.

Yuli Wang1, Pavak Shah, Colleen Phillips

  • 1Department of Chemistry, University of North Carolina, Chapel Hill, NC 27599, USA.

Analytical and Bioanalytical Chemistry
|November 17, 2011
PubMed
Summary
This summary is machine-generated.

Researchers developed a low-cost polydimethylsiloxane (PDMS) microarray platform for trapping and analyzing individual mammalian cells. This technology enables continuous, quantitative, fluorescence-based measurements and cell retrieval for dynamic single-cell studies.

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Area of Science:

  • Biotechnology
  • Cell Biology
  • Microfluidics

Background:

  • Current methods for dynamic single-cell analysis lack continuous, quantitative, and parallel measurement capabilities.
  • There is a need for integrated laboratory technologies that allow cell manipulation alongside dynamic analysis.

Purpose of the Study:

  • To develop a simple, low-cost microarray platform for trapping mammalian cells for dynamic single-cell analysis.
  • To enable continuous, quantitative, fluorescence-based measurements of individual cells in parallel.
  • To allow subsequent manipulations including staining, rinsing, and targeted cell retrieval.

Main Methods:

  • Utilized the elasticity of polydimethylsiloxane (PDMS) to create a microwell array for cell trapping.
  • Developed a method for loading cells onto the array by stretching the PDMS with a tube, trapping cells upon tube removal and PDMS relaxation.
  • Demonstrated multicolor analysis, real-time calcium flux monitoring, and proof-of-concept for target cell isolation using a microneedle.

Main Results:

  • Successfully trapped tens of thousands of mammalian cells on the PDMS microwell array.
  • Demonstrated the platform's capability for multicolor analysis and real-time monitoring of intracellular calcium flux (e.g., after ionomycin exposure).
  • Showcased targeted cell isolation via localized PDMS deformation with a microneedle.

Conclusions:

  • The developed PDMS microarray platform offers a robust and versatile solution for dynamic single-cell analysis.
  • This technology facilitates parallel, quantitative, fluorescence-based measurements and allows for subsequent cell manipulation and isolation.
  • The platform is suitable for routine laboratory procedures and advancing research in mammalian cell behavior.