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A Microfluidic Approach for Cryoprotectant Screening: Preliminary Validation with Human Red Blood Cells
1Department of Electronic Science and Technology, University of Science and Technology of China, Hefei, China.
Cryo Letters
|May 14, 2021
Summary
This study introduces a microfluidic method for rapid cryoprotectant screening. The approach optimizes cryoprotectant concentration for freezing, thawing, and cell counting, achieving optimal results with 10% glycerol or DMSO.
Area of Science:
- Cryobiology
- Microfluidics
- Cell preservation
Background:
- Microfluidics has addressed cryobiology challenges.
- On-chip cryoprotectant concentration optimization for integrated freeze-thaw-count processes remains unexplored.
Purpose of the Study:
- To develop an on-chip method for rapid screening and optimization of cryoprotectant concentrations.
- To integrate freeze, thaw, and cell counting processes on a microfluidic chip.
Main Methods:
- Utilized a microfluidic chip for rapid freezing.
- Employed red blood cells with glycerol and dimethyl sulfoxide for validation.
- Integrated freeze, thaw, and cell counting steps on-chip.
Main Results:
- Successfully established an on-chip approach for cryoprotectant screening.
- Determined optimal cryoprotectant concentrations without additional sampling.
- Identified 10% (w/v) as the optimal concentration for glycerol and dimethyl sulfoxide.
Conclusions:
- The microfluidic approach enables rapid cryoprotectant screening and concentration optimization.
- This method enhances efficiency in cryopreservation processes.
- The integrated on-chip system streamlines cryobiology workflows.
