Reflective epoxy resin/chitosan/PAA composite-functionalized fiber-optic interferometric probe sensor for sensitive heavy metal ion detection

Abstract

A highly sensitive label-free chemical sensing platform for various metal ions detection is demonstrated. The chemical sensor is derived from single-mode fiber that insert into the ceramic tube that with...

Optical fiber sensors for water and air quality monitoring: a review

“…2 Optical fiber-sensing principle: (a) optical absorbance-based sensor, 45 (b) SPR sensor, 31 (c) Raman sensor, 46 (d) fluorescence sensor, 47 and (e) optical fiber interferometric sensor. 48 alters. [51][52][53] This, in turn, affects the conditions governing light propagation across the metalmedium interface, leading to a shift in the resonance angle.…”

“…As shown in Fig. 2(e), Yan et al 48 applied a multilayer film comprising epoxy resin (ER), multilayer chitosan (CS), and polyacrylic acid (PAA) onto a ceramic tube. This process was undertaken to fabricate an optical fiber Fabry-Perot (F-P) sensor designed for the detection of diverse metal ions.…”

“…Optical fiber-sensing principle: (a) optical absorbance-based sensor, 45 (b) SPR sensor, 31 (c) Raman sensor, 46 (d) fluorescence sensor, 47 and (e) optical fiber interferometric sensor 48 …”

“…As shown in Fig. 2(e), Yan et al 48 . applied a multilayer film comprising epoxy resin (ER), multilayer chitosan (CS), and polyacrylic acid (PAA) onto a ceramic tube.…”

Fiber optic cadmium ion sensors based on functionalization of a magnetic ion-imprinted polymer

“…Among them, chitosan has good biocompatibility and rich surface functional groups (amino and hydroxyl groups) and has a strong chelating effect on heavy metal ions. [25][26][27] Carriers include organic carriers, inorganic carriers and biopolymer carriers. Silicon dioxide (SiO 2 ) and ferrosoferric oxide (Fe 3 O 4 ), used in this study, are the most common inorganic carriers.…”