Fiber optic sensors based on time-release polymers

Steven M. Barnard; David R. Walt

doi:10.1117/12.17560

1 July 1990 Fiber optic sensors based on time-release polymers

Steven M. Barnard, David R. Walt

Proceedings Volume 1201, Optical Fibers in Medicine V; (1990) https://doi.org/10.1117/12.17560
Event: OE/LASE '90, 1990, Los Angeles, CA, United States

Abstract

Fiber-optic sensors based on a controlled-release polymer provide sustained release of indicating reagents over long periods. This technique allows irreversible chemistries to be used in the design of sensors for continuous measurements. The first reported sensor used 8-hydroxypyrene- 1 ,3,6-trisulfonic acid and sulforhodamine 640 to measure pH continuously for three months in the range of 5.5 to 8.0 with a precision units. The sensor reported in this paper is based on a fluorescence energy transfer immunoassay. The sensor was cycled through different concentrations of antigen continuously for 30 hours. Although the sensor was not optimized, the data indicates the viability of the technique.

Citation Download Citation

Steven M. Barnard and David R. Walt "Fiber optic sensors based on time-release polymers", Proc. SPIE 1201, Optical Fibers in Medicine V, (1 July 1990); https://doi.org/10.1117/12.17560

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available