Solid state ion sensor with silicon membrane

Details Solid state ion sensor with silicon membrane Solid state ion sensor with silicon membrane

1990-05-02

1992-04-07

Niebling, John

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204418, 20415317, G01N 2726

Patent

active

051025264

ABSTRACT:
A silicone matrix is employed to form a substance-sensitive membrane which is particularly suited for installation on a solid state sensor. The ionophore may be a potassium ionophore, an ammonium ionophore or any other ionophore. The membrane may be coupled to the molecule of interest through a bioactive agent, such as an enzyme, an immunochemical, bacteria, antibody, virus, or antigen. The resulting substance-sensitive membrane has electrochemical properties which compare favorably to those of conventional PVC membranes, and exhibit significantly greater adhesion to glasses and semiconductor substrate materials. The improved adhesion will prolong the life of the sensors and prevent the formation of electrolyte shunts which have been known to render solid state sensors inoperative.

REFERENCES:
patent: 4236987 (1980-12-01), Schindler et al.
patent: 4269682 (1981-05-01), Yano et al.
patent: 4305802 (1981-12-01), Koshiishi
patent: 4388165 (1983-06-01), Koshiishi et al.
patent: 4797181 (1989-01-01), Durfor et al.
patent: 4878015 (1989-10-01), Schmidt
patent: 4882292 (1989-11-01), Sudholter et al.

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