Reflective Fiber Surface Plasmon Resonance Sensor for High-Sensitive Mercury Ion Detection

Reflective Fiber Surface Plasmon Resonance Sensor for High-Sensitive Mercury Ion Detection

This paper proposes a reflective fiber mercury ion sensor based on the surface plasmon resonance (SPR) principle and chitosan (CS)/polyacrylic acid (PAA) multilayer sensitive film. By optimizing the coating parameters of the gold film, the refractive index (RI) sensitivity of the reflective SPR sens...

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Bibliographic Details
Main Authors: Zhenlin Chen, Kunlin Han, Ya-Nan Zhang
Format: Article
Language:English
Published: MDPI AG 2019-04-01
Series:Applied Sciences
Subjects:
mercury ion
fiber optic sensor
surface plasmon resonance
reflective sensor
Online Access:https://www.mdpi.com/2076-3417/9/7/1480
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spelling doaj-b0a79162a4cf478d8b4088c445268a382020-11-25T00:27:38ZengMDPI AGApplied Sciences2076-34172019-04-0197148010.3390/app9071480app9071480Reflective Fiber Surface Plasmon Resonance Sensor for High-Sensitive Mercury Ion DetectionZhenlin Chen0Kunlin Han1Ya-Nan Zhang2College of Information Science and Engineering, Northeastern University, Shenyang 110819, ChinaCollege of Information Science and Engineering, Northeastern University, Shenyang 110819, ChinaCollege of Information Science and Engineering, Northeastern University, Shenyang 110819, ChinaThis paper proposes a reflective fiber mercury ion sensor based on the surface plasmon resonance (SPR) principle and chitosan (CS)/polyacrylic acid (PAA) multilayer sensitive film. By optimizing the coating parameters of the gold film, the refractive index (RI) sensitivity of the reflective SPR sensor is demonstrated to be 2110.33 nm/RIU. Then, a multi-layer CS/PAA film is fixed on the surface of the gold film as a mercury ion sensitive film to form a reflective SPR fiber mercury ion sensor. Experimental results demonstrate that the sensor can be used to detect different concentrations of mercury ions with a high sensitivity of 0.5586 nm/μM and good specificity and repeatability. Therefore, the reflective SPR fiber mercury ion sensor shows great promise for future applications of environmental monitoring and drinking water safety.https://www.mdpi.com/2076-3417/9/7/1480mercury ionfiber optic sensorsurface plasmon resonancereflective sensor
collection DOAJ
language English
format Article
sources DOAJ
author Zhenlin Chen
Kunlin Han
Ya-Nan Zhang
spellingShingle Zhenlin Chen
Kunlin Han
Ya-Nan Zhang
Reflective Fiber Surface Plasmon Resonance Sensor for High-Sensitive Mercury Ion Detection
Applied Sciences
mercury ion
fiber optic sensor
surface plasmon resonance
reflective sensor
author_facet Zhenlin Chen
Kunlin Han
Ya-Nan Zhang
author_sort Zhenlin Chen
title Reflective Fiber Surface Plasmon Resonance Sensor for High-Sensitive Mercury Ion Detection
title_short Reflective Fiber Surface Plasmon Resonance Sensor for High-Sensitive Mercury Ion Detection
title_full Reflective Fiber Surface Plasmon Resonance Sensor for High-Sensitive Mercury Ion Detection
title_fullStr Reflective Fiber Surface Plasmon Resonance Sensor for High-Sensitive Mercury Ion Detection
title_full_unstemmed Reflective Fiber Surface Plasmon Resonance Sensor for High-Sensitive Mercury Ion Detection
title_sort reflective fiber surface plasmon resonance sensor for high-sensitive mercury ion detection
publisher MDPI AG
series Applied Sciences
issn 2076-3417
publishDate 2019-04-01
description This paper proposes a reflective fiber mercury ion sensor based on the surface plasmon resonance (SPR) principle and chitosan (CS)/polyacrylic acid (PAA) multilayer sensitive film. By optimizing the coating parameters of the gold film, the refractive index (RI) sensitivity of the reflective SPR sensor is demonstrated to be 2110.33 nm/RIU. Then, a multi-layer CS/PAA film is fixed on the surface of the gold film as a mercury ion sensitive film to form a reflective SPR fiber mercury ion sensor. Experimental results demonstrate that the sensor can be used to detect different concentrations of mercury ions with a high sensitivity of 0.5586 nm/μM and good specificity and repeatability. Therefore, the reflective SPR fiber mercury ion sensor shows great promise for future applications of environmental monitoring and drinking water safety.
topic mercury ion
fiber optic sensor
surface plasmon resonance
reflective sensor
url https://www.mdpi.com/2076-3417/9/7/1480
work_keys_str_mv AT zhenlinchen reflectivefibersurfaceplasmonresonancesensorforhighsensitivemercuryiondetection
AT kunlinhan reflectivefibersurfaceplasmonresonancesensorforhighsensitivemercuryiondetection
AT yananzhang reflectivefibersurfaceplasmonresonancesensorforhighsensitivemercuryiondetection
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