Detection article having fluid control film
First Claim
1. A microfluidic article with enhanced optical transmission comprising;
- at least one fluid control film layer having a first microstructured major surface including a plurality of V-shaped microchannels therein, the microchannels configured for enhanced optical transmission through the film layer by canting of an included angle of the channels relative to a line normal to the first microstructured major surface, wherein the included angle is canted greater than or equal to about 5 degrees, wherein the optical transmission is enhanced when the microfluidic article is viewed at +30 degrees to −
30 degrees from the normal, wherein the plurality of microchannels comprises a plurality of fluid control microchannels that are defined by sidewalls that extend along at least a portion of the first major surface of the fluid control film layer; and
a cap layer that forms covered microchannels.
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Accused Products
Abstract
The present invention provides a detection article including at least one fluid control film layer having at least one microstructured major surface with a plurality of microchannels therein. The microchannels are configured for uninterrupted fluid flow of a fluid sample throughout the article. The film layer includes an acquisition zone for drawing the fluid sample into the plurality of microchannels at least by spontaneous fluid transport. The film layer also includes a detection zone having at least one detection element that facilitates detection of a characteristic of the fluid sample within at least one microchannel of the detection zone. The detection article may be formed from a plurality of film layers that are stacked to form a three-dimensional article.
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Citations
9 Claims
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1. A microfluidic article with enhanced optical transmission comprising;
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at least one fluid control film layer having a first microstructured major surface including a plurality of V-shaped microchannels therein, the microchannels configured for enhanced optical transmission through the film layer by canting of an included angle of the channels relative to a line normal to the first microstructured major surface, wherein the included angle is canted greater than or equal to about 5 degrees, wherein the optical transmission is enhanced when the microfluidic article is viewed at +30 degrees to −
30 degrees from the normal, wherein the plurality of microchannels comprises a plurality of fluid control microchannels that are defined by sidewalls that extend along at least a portion of the first major surface of the fluid control film layer; anda cap layer that forms covered microchannels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification