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Updated: Jun 12, 2025
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A Microfluidic Chip for the Versatile Chemical Analysis of Single Cells
Published on: October 15, 2013
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Electronic detection of apoptotic cells on a microchip
A K M Arifuzzman1, Norh Asmare1, Tevhide Ozkaya1
1School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
Biosensors & Bioelectronics
|September 22, 2024
Summary
A novel microfluidic device offers rapid, electronic detection of apoptosis (programmed cell death) by sensing cell membrane changes. This technology simplifies cell analysis for diagnostics and drug discovery outside specialized labs.
Area of Science:
- Biotechnology
- Cell Biology
- Medical Diagnostics
Background:
- Apoptosis detection is vital for diagnostics, drug discovery, and understanding disease.
- Current methods (flow cytometry, microscopy) require complex, expensive equipment and trained personnel.
- There is a need for accessible, rapid, and robust apoptosis detection tools.
Purpose of the Study:
- To develop a microfluidic device for electronic detection of apoptosis in cell suspensions.
- To enable rapid and robust apoptosis screening outside traditional laboratory settings.
- To provide an alternative to complex and costly conventional apoptosis assays.
Main Methods:
- A microfluidic chip integrates sample manipulation and electronic detection.
- Apoptotic cells are identified by detecting externalized phosphatidylserine via biochemical capture.
- Capture events are transduced into electrical signals using integrated sensors.
- Device performance was validated against conventional flow cytometry using simulated samples.
Main Results:
- The microfluidic device successfully discriminated apoptotic cells from non-apoptotic cells.
- Electronic detection of apoptosis markers was achieved through biochemical capture and signal transduction.
- Validation confirmed comparable performance to established flow cytometry methods.
Conclusions:
- The developed microfluidic device provides a robust and rapid method for cell apoptosis assay.
- This technology enables electronic data reporting, simplifying analysis and accessibility.
- The device has potential for widespread application in diagnostics, therapeutics, and healthcare.
