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A Microfluidic-based Hydrodynamic Trap for Single Particles

A Microfluidic-based Hydrodynamic Trap for Single Particles

Published on: January 21, 2011

Hydrodynamic gating valve for microfluidic fluorescence-activated cell sorting.

Pu Chen¹, Xiaojun Feng, Rui Hu

¹Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Department of Systems Biology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.

Analytica Chimica Acta

|February 23, 2010

Summary

This summary is machine-generated.

This study presents a microfluidic fluorescence-activated cell sorter (muFACS) using hydrodynamic gating for efficient cell separation. The novel muFACS achieves high purity and recovery, preserving cell viability for bioanalysis applications.

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Area of Science:

Biotechnology
Microfluidics
Cell Sorting

Background:

Microfluidic cell sorters are crucial for handling limited cell populations, such as primary cells.
Existing methods face challenges in efficiency and cell preservation.

Purpose of the Study:

To develop and validate a novel microfluidic fluorescence-activated cell sorter (muFACS) with an on-chip hydrodynamic gating mechanism.
To assess the purity, recovery, and viability of cells sorted using this new approach.

Main Methods:

Numerical simulation and flow visualization were used to investigate hydrodynamic gating.
Fluorescent polystyrene beads and fluorescent HeLa-DsRed cells were used to evaluate sorting performance.
Cell viability was assessed post-sorting.

Main Results:

The hydrodynamic gating valve was successfully formed and investigated.
High purity and recovery rates were achieved in separating fluorescent beads and cells.
Sorted cells exhibited a viability rate exceeding 90%.

Conclusions:

The developed muFACS with hydrodynamic gating offers an efficient and gentle method for cell separation.
This technology holds significant potential for various bioanalytical applications.
The on-chip sorting mechanism enhances the utility of microfluidic cell sorting.