Controlled fluid transport in microfabricated polymeric substrates
First Claim
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1. A microfluidic device, comprising:
- a body structure comprising at least one polymeric material, the body structure having at least a first microchannel disposed therein, which at least first microchannel comprises at least a first fluidic material, which first fluidic material is electroosmotically flowed through the at least first microchannel at a mobility of at least about 1×
10−
5 cm2V−
1s−
1.
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Abstract
Microfluidic devices are provided for the performance of chemical and biochemical analyses, syntheses and detection. The devices of the invention combine precise fluidic control systems with microfabricated polymeric substrates to provide accurate, low cost miniaturized analytical devices that have broad applications in the fields of chemistry, biochemistry, biotechnology, molecular biology and numerous other fields.
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Citations
57 Claims
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1. A microfluidic device, comprising:
- a body structure comprising at least one polymeric material, the body structure having at least a first microchannel disposed therein, which at least first microchannel comprises at least a first fluidic material, which first fluidic material is electroosmotically flowed through the at least first microchannel at a mobility of at least about 1×
10−
5 cm2V−
1s−
1. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
- a body structure comprising at least one polymeric material, the body structure having at least a first microchannel disposed therein, which at least first microchannel comprises at least a first fluidic material, which first fluidic material is electroosmotically flowed through the at least first microchannel at a mobility of at least about 1×
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33. A method of fabricating a microfluidic device, the method comprising:
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fabricating a polymeric material to form a substrate having at least one surface, which surface has at least a first channel disposed therein, which first channel has a zeta potential associated therewith, which zeta potential supports an electroosmotic mobility of at least about 1×
10−
5 cm2V−
1s−
1 for at least a first fluidic material, said first fluidic material comprising from about 1 mM to about 100 mM sodium borate buffer at a pH of from about 6 to about 9, said first channel having a dimension in a range from about 0.1 μ
m to about 500 μ
m; and
,overlaying a cover layer on said at least one surface, said cover layer enclosing said first channel, and wherein said substrate and said cover layer together comprise one or more port disposed therein, which one or more port is in fluid communication with said first channel. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41)
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42. A method of flowing a fluidic material through a microchannel in a polymeric substrate, which microchannel has a zeta potential associated therewith, the method comprising:
- applying a voltage to the fluidic material in the microchannel in the polymeric substrate, thereby flowing the fluidic material through the microchannel at a mobility of at least about 1×
10−
5 cm2V−
1s−
1. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57)
- applying a voltage to the fluidic material in the microchannel in the polymeric substrate, thereby flowing the fluidic material through the microchannel at a mobility of at least about 1×
Specification