Cargando…

A Silver Nanoparticle-Modified Evanescent Field Optical Fiber Sensor for Methylene Blue Detection

A silver nanoparticle-modified evanescent field optical fiber sensor based on a MEMS microchannel chip has been successfully fabricated. Experimental results show that the sensor response decreases linearly with increasing concentration of analyte. Over a range of methylene blue concentrations from...

Descripción completa

Detalles Bibliográficos
Autores principales: Luo, Ji, Yao, Jun, Lu, Yonggang, Ma, Wenying, Zhuang, Xuye
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3658787/
https://www.ncbi.nlm.nih.gov/pubmed/23519353
http://dx.doi.org/10.3390/s130303986
_version_ 1782270334735482880
author Luo, Ji
Yao, Jun
Lu, Yonggang
Ma, Wenying
Zhuang, Xuye
author_facet Luo, Ji
Yao, Jun
Lu, Yonggang
Ma, Wenying
Zhuang, Xuye
author_sort Luo, Ji
collection PubMed
description A silver nanoparticle-modified evanescent field optical fiber sensor based on a MEMS microchannel chip has been successfully fabricated. Experimental results show that the sensor response decreases linearly with increasing concentration of analyte. Over a range of methylene blue concentrations from 0 to 0.4 μmol/mL, the sensor response is linear (R = 0.9496). A concentration variation of 0.1 μmol/mL can cause an absorbance change of 0.402 dB. Moreover, the optical responses of the same sensing fiber without decoration and modified with silver nanoparticles have also been compared. It can be observed that the output intensity of the Ag nanoparticle-modified sensor is enhanced and the sensitivity is higher. Meanwhile, the absorbance spectra are found to be more sensitive to concentration changes compared to the spectra of the peak wavelength.
format Online
Article
Text
id pubmed-3658787
institution National Center for Biotechnology Information
language English
publishDate 2013
publisher Molecular Diversity Preservation International (MDPI)
record_format MEDLINE/PubMed
spelling pubmed-36587872013-05-30 A Silver Nanoparticle-Modified Evanescent Field Optical Fiber Sensor for Methylene Blue Detection Luo, Ji Yao, Jun Lu, Yonggang Ma, Wenying Zhuang, Xuye Sensors (Basel) Article A silver nanoparticle-modified evanescent field optical fiber sensor based on a MEMS microchannel chip has been successfully fabricated. Experimental results show that the sensor response decreases linearly with increasing concentration of analyte. Over a range of methylene blue concentrations from 0 to 0.4 μmol/mL, the sensor response is linear (R = 0.9496). A concentration variation of 0.1 μmol/mL can cause an absorbance change of 0.402 dB. Moreover, the optical responses of the same sensing fiber without decoration and modified with silver nanoparticles have also been compared. It can be observed that the output intensity of the Ag nanoparticle-modified sensor is enhanced and the sensitivity is higher. Meanwhile, the absorbance spectra are found to be more sensitive to concentration changes compared to the spectra of the peak wavelength. Molecular Diversity Preservation International (MDPI) 2013-03-21 /pmc/articles/PMC3658787/ /pubmed/23519353 http://dx.doi.org/10.3390/s130303986 Text en © 2013 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Luo, Ji
Yao, Jun
Lu, Yonggang
Ma, Wenying
Zhuang, Xuye
A Silver Nanoparticle-Modified Evanescent Field Optical Fiber Sensor for Methylene Blue Detection
title A Silver Nanoparticle-Modified Evanescent Field Optical Fiber Sensor for Methylene Blue Detection
title_full A Silver Nanoparticle-Modified Evanescent Field Optical Fiber Sensor for Methylene Blue Detection
title_fullStr A Silver Nanoparticle-Modified Evanescent Field Optical Fiber Sensor for Methylene Blue Detection
title_full_unstemmed A Silver Nanoparticle-Modified Evanescent Field Optical Fiber Sensor for Methylene Blue Detection
title_short A Silver Nanoparticle-Modified Evanescent Field Optical Fiber Sensor for Methylene Blue Detection
title_sort silver nanoparticle-modified evanescent field optical fiber sensor for methylene blue detection
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3658787/
https://www.ncbi.nlm.nih.gov/pubmed/23519353
http://dx.doi.org/10.3390/s130303986
work_keys_str_mv AT luoji asilvernanoparticlemodifiedevanescentfieldopticalfibersensorformethylenebluedetection
AT yaojun asilvernanoparticlemodifiedevanescentfieldopticalfibersensorformethylenebluedetection
AT luyonggang asilvernanoparticlemodifiedevanescentfieldopticalfibersensorformethylenebluedetection
AT mawenying asilvernanoparticlemodifiedevanescentfieldopticalfibersensorformethylenebluedetection
AT zhuangxuye asilvernanoparticlemodifiedevanescentfieldopticalfibersensorformethylenebluedetection
AT luoji silvernanoparticlemodifiedevanescentfieldopticalfibersensorformethylenebluedetection
AT yaojun silvernanoparticlemodifiedevanescentfieldopticalfibersensorformethylenebluedetection
AT luyonggang silvernanoparticlemodifiedevanescentfieldopticalfibersensorformethylenebluedetection
AT mawenying silvernanoparticlemodifiedevanescentfieldopticalfibersensorformethylenebluedetection
AT zhuangxuye silvernanoparticlemodifiedevanescentfieldopticalfibersensorformethylenebluedetection