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US 4,781,798 AGranted
Transparent multi-oxygen sensor array and method of using same
AssigneeThe Regents of the University of California
InventorDavid A. Gough
Life of this patent
Estimating the term…
Abstract
A transparent electrochemical oxygen sensor for simultaneously determining oxygen concentration at different locations on a biological surface that is capable of being positioned over the region sought to be measured and includes an array of independently functioning oxygen-sensitive electrodes, a counter electrode, and a reference electrode.
Claims30
A transparent electrochemical sensor for determining the concentration of a gas at or near biological surfaces comprising:
- a transparent support base;
- a connecting strip comprising a plurality of respective leads attached to an edge of said base;
- a plurality of sensing electrodes, each of 20.mu. to 100.mu. diameter, arrayed on a surface of said support base at a spacing of 40.mu. to 200.mu. for simultaneously sensing said gas at different regions at or near said biological surface, each of said sensing electrode being independently connected to a respective one of said leads and electrically insulated from all of the others of said sensing electrodes;
- a reference electrode on said surfce and connected to a respective one of said leads;
- a counter electrode on said surface and connected to a respective one of said leads;
- and
- an electrolyte solution on said surface and in contact with said sensing electrodes, said reference electrode and said counter electrode.
4 more elements
A method of meauring the concentration of a gas on biological surfaces comprising:
- providing a transparent electrochemical sensor having a transparent support base, a connecting strip on said base with a plurality of respective leads attached to an edge of said base, a plurality of sensing electrodes each of 20.mu. to 100.mu. diameter on a surface of said base at a spacing of 40.mu. to 200.mu., each of said sensing electrodes being independently connected to a respective one of said leads and electrically insulated from all of the others of said sensing electrodes, said electrodes including a reference electrode and a counter electrode, and an electrolyte solution on said base and contacting said electrodes;
- contacting said biological surface with said transparent support base;
- and
- detecting said gas at different regions of said biological surface contacted by said transparent support base.
1 more element
Dependencies are inferred from the claim text.