Coating processes – Medical or dental purpose product; parts; subcombinations;... – Particulate or unit-dosage-article base
Patent
1990-03-14
1991-12-31
Bell, Janyce
Coating processes
Medical or dental purpose product; parts; subcombinations;...
Particulate or unit-dosage-article base
427163, 427164, 427165, 427301, 427337, 4274191, B05D 506
Patent
active
050770780
ABSTRACT:
A method of chemically modifying the poly (methyl methacrylate) (hereinafter "PMMA") clad surface of an optical fiber to introduce amino groups. N-butyl lithium in a suitable organic solvent with ethylene diamine is applied to the clad surface of the optical fiber in a substantially oxygen-free atmosphere, such as nitrogen, at approximately 10.degree. C. to 40.degree. C. for about one to two hours. A pH-sensitive dye with isothiocyanate functionality can be bounded to the modified clad surface resulting in a pH sensor based on fiber optics.
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Matyjaszewski Krzysztof
Puschett Jules B.
Bell Janyce
Cochenour Craig G.
Kikel Suzanne
Silverman Arnold B.
University of Pittsburgh of the Commonwealth System of Higher Ed
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