Micro sensor

Details Micro sensor Micro sensor

1986-10-10

1989-01-17

Bell, Janyce

Coating processes

Medical or dental purpose product; parts; subcombinations;...

Particulate or unit-dosage-article base

427163, 427164, 427165, 427169, A61R 4900, B05D 506

Patent

active

047987383

ABSTRACT:
A micro pH sensor is constructed by reacting powdered aminoalkylated cellulose with a dye to covalently bond the dye to the aminoalkyl groups on the cellulose. Any excess unreacted aminoalkyl groups are blocked with a blocking agent and the dye containing powdered cellulose is taken up in a solvent. A portion of the solvated dye containing cellulose is deposited in association with an optical fiber. The cellulose is regenerated into a solid matrix by acid treatment of the solvated dye containing cellulose to deposit the dye containing cellulose matrix on the optical fiber.

REFERENCES:
patent: 4200110 (1980-04-01), Peterson et al.
patent: 4321057 (1982-03-01), Buckies
patent: 4568518 (1986-02-01), Wolfbers
patent: 4606310 (1986-07-01), Cramp et al.

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