Biosensor, biosensor system and method of using thereof
First Claim
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1. A biosensor, comprising:
- an infrared light source generating a light;
an infrared absorber configured to have a resistance which varies corresponding to an intensity of the light absorbed thereby, the infrared absorber being a single, indivisible and unitary component, and the infrared absorber including at least two opposing end portions;
bioreceptors immobilized onto the infrared absorber and configured to selectively react and bind with an analyte; and
a measuring unit connected to both opposing end portions of the infrared absorber and configured to measure an induced voltage of the infrared absorber, the induced voltage being due to absorption of the light by the infrared absorber,wherein the infrared absorber induces a first voltage when the light is applied thereto when the bioreceptors are unreacted and unbound to the analyte, andwherein the infrared absorber induces a second voltage when the light is applied thereto when the bioreceptors are reacted and bound with the analyte.
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Abstract
A biosensor for detecting an analyte by using a variable voltage according to infrared radiation absorption is provided. The biosensor includes an infrared absorber having a variable resistance and bioreceptors immobilized onto the infrared absorber for selectively reacting and binding with an analyte, wherein an induced voltage at the infrared absorber varies depending on whether the bioreceptor reacts and binds with the analyte.
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Citations
23 Claims
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1. A biosensor, comprising:
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an infrared light source generating a light; an infrared absorber configured to have a resistance which varies corresponding to an intensity of the light absorbed thereby, the infrared absorber being a single, indivisible and unitary component, and the infrared absorber including at least two opposing end portions; bioreceptors immobilized onto the infrared absorber and configured to selectively react and bind with an analyte; and a measuring unit connected to both opposing end portions of the infrared absorber and configured to measure an induced voltage of the infrared absorber, the induced voltage being due to absorption of the light by the infrared absorber, wherein the infrared absorber induces a first voltage when the light is applied thereto when the bioreceptors are unreacted and unbound to the analyte, and wherein the infrared absorber induces a second voltage when the light is applied thereto when the bioreceptors are reacted and bound with the analyte. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A biosensor, comprising:
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an infrared light source generating a light; a substrate; a plurality of infrared absorbers formed on the substrate, the plurality of infrared absorbers having a resistance which varies corresponding to an intensity of the light absorbed by each of the plurality of infrared absorbers, each of the plurality of infrared absorbers being a single, indivisible and unitary component; a plurality of bioreceptors immobilized onto the infrared absorbers, the plurality of bioreceptors being of varying types configured for selectively reacting and binding with different analytes; a plurality of voltage amplifying parts connected to the plurality of the infrared absorbers, for amplifying an induced voltage at each of the plurality of infrared absorbers; and a measuring unit configured to measure an induced voltage of the plurality of infrared absorbers, the induced voltage being due to absorption of the light by the infrared absorber, wherein the induced voltage at the infrared absorber varies depending on whether different kinds of bioreceptors react and bind with the analytes. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A biosensor system, comprising:
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an infrared generator generating a light; a biosensor including an infrared absorber which is a single, indivisible and unitary component, and which has a resistance which varies according to an amount of the light absorbed from the infrared generator, and bioreceptors immobilized onto the infrared absorber for selectively reacting and binding with an analyte, wherein, an induced voltage at the infrared absorber varies depending on whether the bioreceptor reacts and binds with the analyte; and an output unit for displaying the variation in the induced voltage at the biosensor due to a variation in an amount of the light absorbed thereby. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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Specification