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Proceedings Paper

Fiber optic sensor based on microencapsulated reagents
Author(s): Venetka I. Agayn; David R. Walt
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Paper Abstract

The use of irreversible indicating chemistries necessitates a constant supply of reagent to the sensor's tip. In previous work we demonstrated the delivery of reagents incorporated in an ethylene-vinyl acetate copolymer matrix. In this paper we show how a degradable polymer, poly(lactide-glycolide), can be used for sensor preparation. The use of this polymer as a matrix entrapping reagent(s) is described for two different configurations. Sensors are prepared using either composites of dispersed HPTS(1-hydroxy-pyrene-3,6,8-trisulfonate) in polymer layers or microparticles incorporating dyes.

Paper Details

Date Published: 30 April 1993
PDF: 4 pages
Proc. SPIE 1796, Chemical, Biochemical, and Environmental Fiber Sensors IV, (30 April 1993); doi: 10.1117/12.143500
Show Author Affiliations
Venetka I. Agayn, Tufts Univ. (United States)
David R. Walt, Tufts Univ. (United States)

Published in SPIE Proceedings Vol. 1796:
Chemical, Biochemical, and Environmental Fiber Sensors IV
Robert A. Lieberman, Editor(s)

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