All-polymer fiber-optic pH sensor

X. Cheng; J. Bonefacino; B. O. Guan; And H.Y. Tam

doi:10.1364/OE.26.014610

All-polymer fiber-optic pH sensor

X. Cheng, J. Bonefacino, B. O. Guan, And H.Y. Tam

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

64 Citations (Scopus)

Abstract

A novel all-polymer fiber-optic pH sensor using a UV-cured pH-sensitive hydrogel, poly(ethylene glycol) diacrylate (PEGDA), coated on a polymer fiber Bragg grating was developed. The PEGDA increased in volume according to the pH value of the surrounding fluid, which subsequently induced a lateral stress in the polymer fiber Bragg grating. The proposed pH sensor exhibits a pH sensitivity of up to −0.41 nm/pH and a fast response time of 30 s.

Original language	English
Pages (from-to)	14610-14616
Number of pages	7
Journal	Optics Express
Volume	26
Issue number	11
DOIs	https://doi.org/10.1364/OE.26.014610
Publication status	Published - 28 May 2018

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/OE.26.014610

http://hdl.handle.net/10397/79227

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note = "Funding Information: National Natural Science Foundation of China (NSFC) (1701268); Hong Kong Research Grant Council{\textquoteright}s General Research Fund Project (152207/15E); Hong Kong Polytechnic University (1-ZVGB). Publisher Copyright: {\textcopyright} 2018 Optical Society of America",

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All-polymer fiber-optic pH sensor

Abstract

ASJC Scopus subject areas

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