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Lab Chip. 2006 Mar;6(3):422-6. Epub 2006 Jan 20.

Microfluidic sorting system based on optical waveguide integration and diode laser bar trapping.

Author information

1
Department of Physics, Colorado School of Mines, 1523 Illinois Street, Golden, CO 80401, USA. rapplega@mines.edu

Abstract

Effective methods for manipulating, isolating and sorting cells and particles are essential for the development of microfluidic-based life science research and diagnostic platforms. We demonstrate an integrated optical platform for cell and particle sorting in microfluidic structures. Fluorescent-dyed particles are excited using an integrated optical waveguide network within micro-channels. A diode-bar optical trapping scheme guides the particles across the waveguide/micro-channel structures and selectively sorts particles based upon their fluorescent signature. This integrated detection and separation approach streamlines microfluidic cell sorting and minimizes the optical and feedback complexity commonly associated with extant platforms.

PMID:
16511626
DOI:
10.1039/b512576f
[Indexed for MEDLINE]
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