Patent ID: 9702842
Date: 2017-07-11
CPC Classifications: G01N

Claim:
1. An apparatus, comprising: an amperometric sensor for measuring a concentration of nitrosothiols (RSNO), the amperometric sensor comprising: an electrode located on an optical fiber, the electrode comprising: a nitric oxide (NO) selective permeable film located over a portion of the electrode, the electrode configured to measure an electric current generated by an oxidation reaction of nitric oxide (NO), the electrode sized to be insertable into a human body; a light source communicating with the optical fiber; a photocatalyst switch that controls emission of a light from the light source; and wherein the electric current is measured by an electrochemical measurement device to determine an oxidation reaction of NO before and after a light-induced decomposition of RSNO, while the electrode is located in the human body; wherein the nitric oxide (NO) selective permeable film is formed through a self-assembly reaction in a sol-gel process by mixing a silane monomer used to form a backbone with a perflourinated silane monomer used to give a film lipophilicity is formed on the electrode.