Patent ID: 7815860

Claim:
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, 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.