Related Experiment Video
Updated: Jun 7, 2026
15:41
A Microfluidic Chip for the Versatile Chemical Analysis of Single Cells
Published on: October 15, 2013
Integrated electrical concentration and lysis of cells in a microfluidic chip
Biomicrofluidics
|October 29, 2010
Summary
This study integrates cell concentration and lysis in microchannels using electric fields. This method precisely controls cell movement for efficient red blood cell lysis and continuous leukemia cell separation.
Area of Science:
- Biotechnology
- Microfluidics
- Cell Biology
Background:
- Cell lysis is crucial for analyzing intracellular components.
- Concentrating cells is often necessary to obtain sufficient sample for lysis.
- Existing methods may lack efficiency or require multiple steps.
Purpose of the Study:
- To develop an integrated method for concentrating and lysing mammalian cells.
- To demonstrate precise control over cell electrokinetic motion in microchannels.
- To achieve continuous concentration and separation of specific cell types.
Main Methods:
- Utilizing a constriction microchannel with dc-biased ac electric fields.
- Precisely adjusting the dc component to control electrokinetic cell motion.
- Integrating cell concentration and lysis operations within the same microchannel.
Main Results:
- Demonstrated precise control over red blood cell concentration and lysis by adjusting electric field parameters.
- Successfully achieved continuous concentration and separation of leukemia cells from red blood cells.
- Observed cell behaviors showed good agreement with simulation results.
Conclusions:
- The integrated microfluidic system offers a novel approach for controlled cell manipulation.
- This technique enables efficient cell lysis and selective cell separation in a single device.
- The findings have implications for improved cell analysis and diagnostics.
