Translator Disclaimer
16 June 1997 Sol gel-based fiber optic pH sensor
Author Affiliations +
Proceedings Volume 2976, Biomedical Sensing, Imaging, and Tracking Technologies II; (1997)
Event: BiOS '97, Part of Photonics West, 1997, San Jose, CA, United States
We report here on the development of a sol-gel based fiber optic sensor to monitor local blood pH. These sensors are being developed for invasive medical applications; that is, they will be coaxially threaded through a catheter beyond an occlusion in the vascular system. The fiber optic pH sensor design was based on the immobilization of a pH sensitive dye, seminaphthorhodamine-1 carboxylate, onto the tip or surface of an optical fiber using the sol-gel method. The fiber optic pH sensor was tested in phosphate buffer saline and human whole blood using a miniature fluorimeter system. Linear responses were obtained in blood in the pH range 6.7 to 8.0, which demonstrates potential for use for in vivo sensing.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sheila A. Grant and Robert S. Glass "Sol gel-based fiber optic pH sensor", Proc. SPIE 2976, Biomedical Sensing, Imaging, and Tracking Technologies II, (16 June 1997);


Anti-biofouling coatings for optical fiber sensors
Proceedings of SPIE (February 14 2002)
New intravascular flow sensor using fiber optics
Proceedings of SPIE (December 23 1994)
Optical pH Measurements In Blood
Proceedings of SPIE (June 15 1989)
A novel fiber optic sensor for the measurement of pH...
Proceedings of SPIE (April 12 2005)
Design of an optical fiber sensor for detecting in situ...
Proceedings of SPIE (September 24 1996)
Sol-gel coating-based fiber O2/DO sensors
Proceedings of SPIE (March 10 1994)

Back to Top