Nanobiosensor and carbon nanotube thin film transistors
First Claim
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1. A method of detecting an analyte comprising the steps of:
- immobilizing a polymer and sensing element to carbon nanotubes lacking alignment; and
utilizing a transduction mechanism to detect the analyte, wherein the transduction mechanism uses a thin film transistor.
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Abstract
The present invention is directed to systems and methods for detecting biological and chemical species in liquid and gaseous phase. The systems and methods utilize carbon nanotubes to enhance sensitivity and selectivity towards the reacting species by decreasing interference and detecting a wide range of concentrations.
62 Citations
11 Claims
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1. A method of detecting an analyte comprising the steps of:
immobilizing a polymer and sensing element to carbon nanotubes lacking alignment; and
utilizing a transduction mechanism to detect the analyte, wherein the transduction mechanism uses a thin film transistor.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An electrolytic cell comprising:
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a working electrode consisting essentially of a polymer and sensing element immobilized to the carbon nanotubes lacking alignment; a counter electrode; a reference electrode, and a transduction mechanism to detect oxidation of hydrogen peroxide.
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10. A method of detecting hydrogen peroxide presence in a test sample comprising:
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contacting a working electrode consisting essentially of carbon nanotubes lacking alignment with the test sample; and utilizing a transduction mechanism to detect oxidation of the hydrogen peroxide.
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11. A method of detecting hydrogen peroxide presence in a test sample at an anodic potential of 0.2 to 0.4 V comprising:
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contacting the test sample with an electrode consisting essentially of carbon nanotube paste electrodes having about 50% by weight carbon nanotubes lacking alignment; and utilizing a transduction mechanism to detect oxidation of the hydrogen peroxide.
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Specification