BIOSENSOR AND A RELATED MANUFACTURING METHOD
First Claim
1. A biosensor platform for a biosensor adapted to detect one or more predetermined target analytes in a sample, comprisinga waveguide (202) for transporting, optionally by substantially total internal reflection, light emitted by a light source,at least one light source (204) including an organic light emitting diode (OLED) arranged on said waveguide for incoupling light to the waveguide, such as printed on the waveguide or provided with a layer on the waveguide,a binding site (214) comprising immobilized biorecognition material capable of binding to the target analytes, said binding site positioned relative to the waveguide such that evanescent field triggered by the light propagating in the waveguide extends to the binding site, said binding site being optionally specifically arranged on a surface of the waveguide facing the microfluidic layer, anda microfluidic layer (206) comprising one or more microfluidic cavities for conveying the sample past said binding site so as to enable at least part of the target analytes of the sample to bind to the immobilized biorecognition material,wherein said biosensor platform is further configured to enable, when said at least part of the target analytes are bound to the immobilized biorecognition material, fluorescent markers associated with the bound target or other analytes to be excited by the evanescent field so as to emit fluorescence detectable by a detector.
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Abstract
A biosensor platform for a biosensor adapted to detect one or more predetermined target analytes in a sample, includes a waveguide for transporting light emitted by a light source, at least one light source including an OLED, for incoupling light to the waveguide, the light source being arranged on the waveguide, a binding site including immobilized biorecognition material capable of binding to the target analytes, the binding site positioned relative to the waveguide such that evanescent field triggered by the light propagating in the waveguide extend to the binding site, a microfluidic layer including one or more microfluidic cavities for conveying the sample past the binding site to enable at least part of the target analytes of the sample to bind to the immobilized biorecognition material. The biosensor platform is configured to enable, when least part of the target analytes are bound to the immobilized biorecognition material, fluorescent markers associated with the bound target or other analytes to be excited by the evanescent field so as to emit fluorescence detectable by a detector.
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Citations
21 Claims
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1. A biosensor platform for a biosensor adapted to detect one or more predetermined target analytes in a sample, comprising
a waveguide (202) for transporting, optionally by substantially total internal reflection, light emitted by a light source, at least one light source (204) including an organic light emitting diode (OLED) arranged on said waveguide for incoupling light to the waveguide, such as printed on the waveguide or provided with a layer on the waveguide, a binding site (214) comprising immobilized biorecognition material capable of binding to the target analytes, said binding site positioned relative to the waveguide such that evanescent field triggered by the light propagating in the waveguide extends to the binding site, said binding site being optionally specifically arranged on a surface of the waveguide facing the microfluidic layer, and a microfluidic layer (206) comprising one or more microfluidic cavities for conveying the sample past said binding site so as to enable at least part of the target analytes of the sample to bind to the immobilized biorecognition material, wherein said biosensor platform is further configured to enable, when said at least part of the target analytes are bound to the immobilized biorecognition material, fluorescent markers associated with the bound target or other analytes to be excited by the evanescent field so as to emit fluorescence detectable by a detector.
Specification