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 at least one microstructured major surface including a plurality of 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 microstructured major surface.
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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
6 Claims
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1. A microfluidic article with enhanced optical transmission comprising at least one fluid control film layer having at least one microstructured major surface including a plurality of 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 microstructured major surface.
- 2. A microfluidic article with enhanced optical transmission comprising at least one fluid control film layer having at least one microstructured major surface including a plurality of fluid transfer microchannels that are defined by sidewalls that extend along at least a portion of the major surface of the fluid control film layer, the fluid control microchannels configured for enhanced optical transmission through the film layer by canting of an included angle of the channels, as defined by the sidewalls providing the fluid control microchannels, relative to a line normal to the microstructured major surface.
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6. A method of using a microfluidic article comprising the steps of:
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providing a microfluidic article with enhanced optical transmission comprising at least one fluid control film layer having at least one microstructured major surface including a plurality of fluid transfer microchannels that are defined by sidewalls that extend along at least a portion of the major surface of the fluid control film layer, the fluid control microchannels configured for enhanced optical transmission through the film layer by canting of an included angle of the channels, as defined by the sidewalls providing the fluid control microchannels, relative to a line normal to the microstructured major surface;
providing a fluid into the fluid transfer microchannels; and
viewing a phenomenon related to the microfluidic article through the film layer with enhanced optical transmission.
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Specification