Patent ID: 9610033
Date: 2017-04-04
CPC Classifications: A61B,G01N

Claim:
1. A sensor chip for detecting an analyte inside a subject, comprising a substrate, a metal pattern, a proximate substance, and a light shielding layer, the metal pattern being on one face of the substrate, and the proximate substance being on or near the metal pattern, wherein, the metal pattern induces a surface plasmon wave by being irradiated with excitation light; the proximate substance generates first surface-enhanced Raman-scattered light by being irradiated with the excitation light, the first surface-enhanced Raman-scattered light having a first peak; the first surface-enhanced Raman-scattered light does not vary with changes in the concentration of the analyte; the proximate substance is a substance which binds to the analyte; the proximate substance having bound to the analyte generates second surface-enhanced Raman-scattered light by being irradiated with the excitation light, the second surface-enhanced Raman-scattered light having a second peak different from the first peak; the second surface-enhanced Raman-scattered light varies with changes in the concentration of the analyte; the light shielding layer is provided on the substrate so as to cover the metal pattern and the proximate substance; the light shielding layer is a layer which blocks the excitation light from going into the proximate substance; and the light shielding layer is made of a substance which becomes degraded inside the subject.