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Issue 12, 2010
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Human mammalian cell sorting using a highly integrated micro-fabricated fluorescence-activated cell sorter (μFACS)

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Abstract

We demonstrate a high performance microfabricated FACS system with highly integrated microfluidics, optics, acoustics, and electronics. Single cell manipulation at a high speed is made possible by the fast response time (∼0.1 ms) of the integrated PZT actuator and the nozzle structure at the sorting junction. A Teflon AF-coated optofluidic waveguide along the microfluidic channel guides the illumination light, enabling multi-spot detection, while a novel space-time coding technology enhances the detection sensitivity of the μFACS system. The real-time control loop system is implemented using a field-programmable-gate-array (FPGA) for automated and accurate sorting. The μFACS achieves a high purification enrichment factor: up to ∼230 fold for both polystyrene microbeads and suspended human mammalian cells (K562) at a high throughput (>1000 cells s−1). The sorting mechanism is independent of cell properties such as size, density, and shape, thus the presented system can be applied to sort out any pure sub-populations. This new lab-on-a-chip FACS system, therefore, holds promise to revolutionize microfluidic cytometers to meet cost, size, and performance goals.

Graphical abstract: Human mammalian cell sorting using a highly integrated micro-fabricated fluorescence-activated cell sorter (μFACS)

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Publication details

The article was received on 07 Jan 2010, accepted on 09 Mar 2010 and first published on 09 Apr 2010


Article type: Paper
DOI: 10.1039/C000136H
Citation: Lab Chip, 2010,10, 1567-1573
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    Human mammalian cell sorting using a highly integrated micro-fabricated fluorescence-activated cell sorter (μFACS)

    S. H. Cho, C. H. Chen, F. S. Tsai, J. M. Godin and Y. Lo, Lab Chip, 2010, 10, 1567
    DOI: 10.1039/C000136H

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