Fourier detection of species migrating in a microchannel

Details Fourier detection of species migrating in a microchannel Fourier detection of species migrating in a microchannel

1997-09-30

1998-12-22

Font, Frank G.

Optics: measuring and testing

By electrophoresis

73 6148, G01N 2100

Patent

active

058524959

ABSTRACT:
The present invention provides a microfluidic system for fast, accurate and low cost electrophoretic analysis of materials in the fields of chemistry, biochemistry, biotechnology, molecular biology and numerous other fields. Light from periodically spaced regions along a channel in the microfluidic system are received by a photodetector. The intensity of light received by the photodetector is modulated by the movement of species bands through the channel under electrophoretic forces. By Fourier analysis, the velocity of each species band is determined and the identification of the species is made by its electrophoretic mobility in the channel.

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