Patent ID: 9714952
Date: 2017-07-25
CPC Classifications: G01N

Claim:
1. A sensor in electrical communication with a controller, the sensor comprising: a surface plasmon resonance (SPR) detector including a reservoir containing a liquid sample having a concentration of molecules programmed by the controller to be measured by the SPR detector, and a sensing metallic film immersed within the reservoir so that at least a majority of a surface of the sensing metallic film is within the reservoir; and a semiconductor device having a contact in electrical communication with the sensing metallic film immersed within the reservoir of the SPR detector, wherein the semiconductor device is programmed by the controller to measure change in charge density in proximity to the sensing metallic film, which is correlated to the concentration of molecules of the liquid sample contained within the reservoir of the SPR detector, wherein the concentration of molecules are simultaneously measured by the SPR detector and the semiconductor device.