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Updated: Jun 13, 2026

A Microfluidic Chip for the Versatile Chemical Analysis of Single Cells

A Microfluidic Chip for the Versatile Chemical Analysis of Single Cells

Published on: October 15, 2013

A rotating microfluidic array chip for staining assays.

Hong Chen¹, XiuJun Li, Lin Wang

¹Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada.

|May 6, 2010

Summary

A novel microfluidic method uses a spinning disk to create cell arrays for staining assays. This technique enables live cell encapsulation and interaction with reagents for multi-test applications.

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Area of Science:

Biotechnology
Microfluidics
Cell Biology

Background:

Microfluidic devices offer precise control over biological samples.
Staining assays require efficient reagent delivery and cell interaction.
Current methods for cell array construction can be complex and time-consuming.

Purpose of the Study:

To develop a microfluidic method for constructing a cell array on a circular disk.
To enable centrifugal liquid pumping for reagent delivery within microchannels.
To facilitate multi-cell, multi-reagent testing using live cells.

Main Methods:

A microfluidic chip was designed on a circular disk with spiral microchannels.
Centrifugal force generated by disk rotation was used for liquid pumping.

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Live cells were encapsulated in low-melting point agarose along radial strips.

Cell viability and interaction with reagents were maintained within the agarose matrix.

Main Results:

A functional microfluidic cell array was successfully constructed on a circular disk.
Centrifugal pumping within spiral microchannels proved effective for liquid transport.
Encapsulated cells remained viable and responsive to test reagents.
The system demonstrated potential for parallel testing of multiple cells with multiple reagents.

Conclusions:

The developed microfluidic method provides a convenient platform for cell array construction.
Centrifugal pumping in microchannels simplifies reagent delivery for staining assays.
This circular microfluidic chip is suitable for high-throughput, multi-analyte cell-based assays.