US2020340974A1PendingUtilityA1

Detecting gases and respiration by the conductivity of water within a porous substrate sensor

Assignee: HARVARD COLLEGEPriority: Oct 22, 2014Filed: Jul 10, 2020Published: Oct 29, 2020
Est. expiryOct 22, 2034(~8.2 yrs left)· nominal 20-yr term from priority
A61B 5/0022G01N 27/12A61B 5/0816G01N 27/121G01N 33/497A61B 5/0826A61B 5/082G01N 2033/4975G01N 33/4975
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Claims

Abstract

A method of and system for detecting a gas or vapor includes providing a sensor comprising an electrode pair in electrical contact with a layer of porous material, the porous material layer having water adsorbed on its surface; contacting the sensor with a gas or vapor sample to be analysed; applying a voltage across the electrode pair of the sensor; and measuring a response, the response correlating to the presence of a target gas or vapor.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A method of detecting a gas or vapor comprising:
 providing a sensor comprising an electrode pair in electrical contact with a layer of porous material, said porous material layer having water adsorbed on its surface;   contacting the sensor with a gas or vapor sample to be analysed;   applying a voltage across the electrode pair of the sensor; and   measuring a response, said response correlating to the presence of a target gas.

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