Patent ID: 7754153
Filing Date: 2010-07-13
Classification: G01N

Abstract:
1. A measuring device for biomolecular interaction analysis, said device comprising: an optical biosensor having a surface of which optical characteristics are changed with adsorption of a substance onto the surface; and an optical measuring device for measuring the optical characteristics of the surface of said optical biosensor, said optical measuring device being arranged to receive light of multiple wavelengths from the surface of said optical biosensor, determine absorbance changes at the multiple wavelengths, and remove noise from the optical characteristic measurement, wherein said optical measuring device is arranged to measure the intensity of light outputted from said optical biosensor in a second band including a maximum absorption wavelength, a first band covering a longer wavelength range than the maximum absorption wavelength, and a third band covering a shorter wavelength range than the maximum absorption wavelength, and wherein said measuring device further comprises: a first optical sensor element for measuring an intensity of light in said first band; a second optical sensor element for measuring an intensity of light in said second band; a third optical sensor element for measuring an intensity of light in said third band; and a data processing unit for calculating absorbance A(λ λ representing wavelength bands of said first wavelength band λ  ΔA(λ