Nano-mechanic microsensors and methods for detecting target analytes
First Claim
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1. A microsensor for detecting the presence of a target analyte in a test sample solution comprising a surface acoustic wave sensor comprising a hydrogel located on a surface of said sensor and at least one molecular recognition component immobilized within said hydrogel that is capable of detecting said target analyte, wherein the hydrogel comprises an array of charged colloidal particles within the hydrogel.
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Abstract
The present invention relates generally to methods and compositions for analyzing test samples containing target analytes including proteins and nucleic acids. The invention uses a surface acoustic wave sensor in combination with a hydrogel to obtain an ultra sensitive non-fluorescent detection system.
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27 Claims
- 1. A microsensor for detecting the presence of a target analyte in a test sample solution comprising a surface acoustic wave sensor comprising a hydrogel located on a surface of said sensor and at least one molecular recognition component immobilized within said hydrogel that is capable of detecting said target analyte, wherein the hydrogel comprises an array of charged colloidal particles within the hydrogel.
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12. A microsensor for detecting the presence of a target analyte in a test sample solution comprising a surface acoustic wave sensor comprising a hydrogel located on a surface of said sensor and at least one molecular recognition component immobilized within said hydrogel that is capable of detecting said target analyte, wherein said surface of said sensor comprises interdigitated electrodes having channels between said electrodes and wherein said channels contain all or part of said hydrogel.
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