Optical fiber pH microsensor and method of manufacture

Details Optical fiber pH microsensor and method of manufacture Optical fiber pH microsensor and method of manufacture

1992-06-19

1994-01-11

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

422 8206, 385 12, 128634, 8647, G01N 2100, C09B 6910

Patent

active

052778720

ABSTRACT:
The optical fiber pH microsensor includes an optical fiber having a portion of the surface of a light conducting core covered with a layer of a pH sensitive dye material. The dye material is covalently bonded to a polymeric matrix which is in turn covalently bonded to the optical fiber core to prevent leaching of the indicator dye material during extended use. The dye material is crosslinked in situ over the tip of the optical fiber to yield a hydrophilic, ion permeable pH sensor which can be used intravascularly to monitor blood pH.

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