Send to

Choose Destination
See comment in PubMed Commons below
Med Biol Eng Comput. 1995 Mar;33(2):152-6.

Fibre-optical sensor based on fluorescent indicator for monitoring physiological pH values.

Author information

  • 1Department of Biomedical Engineering & Medical Physics, Keele-University, North Staffordshire Hospital, Stoke-on-Trent, UK.


A fibre-optical sensor has been developed based on the fluorescent indicator 8-hydroxyl-1,3,6-pyrene trisulphonic acid trisodium salt (HOPSA) for monitoring physiological pH values. Dowex-1 strongly basic anion exchange resin is used as the medium to immobilise the indicator on the end of an optical fibre. Polyurethane is coated on the sensor as the permeable membrane for H+. The properties of HOPSA in solution, as well as when immobilised on the sensor, are studied and found to have the potential for monitoring physiological pH values.

[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Loading ...
    Write to the Help Desk