Optical waveguide sensor, device, system and method for...

Optics: measuring and testing – By dispersed light spectroscopy – For spectrographic investigation

Reexamination Certificate

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C356S039000, C356S300000, C385S012000, C385S141000, C422S082110

Reexamination Certificate

active

06903815

ABSTRACT:
An optical waveguide sensor for glucose measurement comprises a substrate, a first optical waveguide layer formed on a surface of the substrate, an entrance grating and an exit grating which are formed contacting with the first optical waveguide layer and being spaced from each other, a second optical waveguide layer located between the entrance grating and the exit grating while being in contact with the first optical waveguide layer, the second optical waveguide layer having a higher refractive index that that of the first optical waveguide layer, and a functioning layer containing an enzyme and a coloring reagent which is formed on the second optical waveguide layer.

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