Fourier detection of species migrating in a microchannel
First Claim
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1. A method of analyzing subject materials, comprising:
- transporting the subject materials through a microchannel and separating the subject materials into species bands;
detecting the species bands at a plurality of periodically spaced regions along the microchannel; and
analyzing frequencies at which the species bands are detected at the plurality of periodically spaced regions to determine a velocity of the species bands to analyze the subject materials.
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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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15 Claims
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1. A method of analyzing subject materials, comprising:
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transporting the subject materials through a microchannel and separating the subject materials into species bands;
detecting the species bands at a plurality of periodically spaced regions along the microchannel; and
analyzing frequencies at which the species bands are detected at the plurality of periodically spaced regions to determine a velocity of the species bands to analyze the subject materials. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A microfluidic system, comprising:
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a microchannel configured to separate a subject material into species bands;
a detection system for detecting the species bands at a plurality of periodically spaced regions along the microchannel;
a frequency analyzer unit operably linked to the detection system for monitoring a frequency at which the species bands past the plurality of periodically spaced regions as detected by the detection system, and determining a velocity of the species bands based upon the frequency. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification