All-polymer fiber-optic pH sensor

Xin Cheng; Julien Bonefacino; Bai Ou Guan; Hwayaw Tam

doi:10.1364/OE.26.014610

All-polymer fiber-optic pH sensor

Xin Cheng, Julien Bonefacino, Bai Ou Guan, Hwayaw Tam

The Hong Kong Polytechnic University

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

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
Journal	Optics Express
Volume	26
Issue number	11
DOIs	https://doi.org/10.1364/OE.26.014610
Publication status	Published - 28 May 2018

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title = "All-polymer fiber-optic pH sensor",

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.",

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AB - 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.

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DO - 10.1364/OE.26.014610

M3 - Journal article

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All-polymer fiber-optic pH sensor

Abstract

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