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Sensor

  • US 9,797,909 B2
  • Filed: 09/26/2016
  • Issued: 10/24/2017
  • Est. Priority Date: 03/15/2012
  • Status: Active Grant
First Claim
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1. A sensor comprising:

  • a sensing region;

    a porous barrier layer; and

    a reactive oxygen species (ROS)-quenching agent formed on or in the barrier layer;

    wherein the sensing region of the sensor defines one or more openings to allow an analyte in a bodily fluid sample to enter the sensing region;

    wherein the barrier layer is disposed across the one or more openings to allow the analyte to enter the sensing region through the barrier layer such that the analyte comes into contact with the ROS-quenching agent;

    wherein the barrier layer has an ROS-quenching activity sufficient to quench a solution of H2O2 having a concentration of 10 ppm; and

    wherein the sensor is configured such that fluid passing through the barrier layer is in contact with the ROS-quenching agent throughout the time the fluid is moving through the barrier layer.

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