Optical pH sensor for physiological pH measurement

Sifu Zhang; Peter J. Rolfe; Yappa A.B.D. Wickramasinghe

doi:10.1117/12.168757

15 February 1994 Optical pH sensor for physiological pH measurement

Sifu Zhang, Peter J. Rolfe, Yappa A.B.D. Wickramasinghe

Proceedings Volume 2085, Biochemical and Medical Sensors; (1994) https://doi.org/10.1117/12.168757
Event: Europto Biomedical Optics '93, 1993, Budapest, Hungary

Abstract

A miniature optical sensor based on the fluorescent indicator, 8-hydroxyl-1,3,6-pyrene trisulfonic Acid Trisodium Salt (HOPSA), was developed for physiological pH measurement. Dowex-1 strongly basic anion exchange resin was used as a medium to immobilize the indicator on the end of an optical fiber to form a pH sensing layer. Polyetherurethane was dip- coated onto the sensing layer as the permeable membrane for H⁺. The properties of the sensor were assessed and found to be suitable for monitoring physiological pH values.

Citation Download Citation

Sifu Zhang, Peter J. Rolfe, and Yappa A.B.D. Wickramasinghe "Optical pH sensor for physiological pH measurement", Proc. SPIE 2085, Biochemical and Medical Sensors, (15 February 1994); https://doi.org/10.1117/12.168757

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