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Quantification of Efferocytosis by Single-cell Fluorescence Microscopy
Published on: August 18, 2018
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Fluorescence quantification of intracellular materials at the single-cell level by an integrated dual-well array
Chenyu Wang1, Lufeng Ren, Wenwen Liu
1State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China.
The Analyst
|March 19, 2019
Summary
This study introduces a microfluidic device for single-cell analysis. The dual-well system efficiently isolates cells and reagents, enabling precise quantification of intracellular materials.
Area of Science:
- Biotechnology
- Analytical Chemistry
- Cell Biology
Background:
- Single-cell analysis is crucial for understanding cellular heterogeneity.
- Existing methods face challenges in cell isolation and reagent handling.
- Microfluidic devices offer potential for precise control and miniaturization.
Purpose of the Study:
- To develop an integrated microfluidic device for single-cell level quantification of intracellular materials.
- To demonstrate the device's capability for efficient single-cell trapping and reagent confinement.
- To validate the device's utility in analyzing intracellular enzyme activity and metabolite concentrations.
Main Methods:
- Design and fabrication of a microfluidic device featuring a dual-well structure (capture and reaction wells).
- Integration of a microfluidic control system for programmable single-cell analysis.
- Application of the device for monitoring alkaline phosphatase activity and quantifying intracellular glucose in K562 cells.
Main Results:
- Achieved highly efficient single-cell trapping, overcoming Poisson distribution limitations.
- Successfully confined sufficient biochemical reagents for each isolated single cell.
- Demonstrated accurate monitoring of intracellular enzyme kinetics and quantitative measurement of intracellular glucose.
Conclusions:
- The developed dual-well array microfluidic device is a feasible and convenient tool for single-cell research.
- The device enables precise quantification of intracellular materials at the single-cell level.
- This technology has broad applications in cell biology and diagnostics.
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