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题名:
A silver nanoparticle-modified evanescent field optical fiber sensor for methylene blue detection
作者: Luo, Ji1; Yao, Jun1; Lu, Yonggang2; Ma, Wenying3; Zhuang, Xuye4
刊名: Sensors (Switzerland)
出版日期: 2013
卷号: 13, 期号:3, 页码:3986-3997
学科分类: Aromatic compounds - Composite structures - Evanescent fields - Microchannels - Nanoparticles - Sensors
DOI: 10.3390/s130303986
通讯作者: Luo, J. (rockyluoji@163.com)
文章类型: 期刊论文
中文摘要: 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. © 2013 by the authors; licensee MDPI, Basel, Switzerland.
英文摘要: 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. © 2013 by the authors; licensee MDPI, Basel, Switzerland.
收录类别: SCI ; Ei
项目资助者: Kuangcheng Wong Education Foundation, Hong Kong ; Nature Science Foundation of Beijing [4102016] ; West Light Foundation of the Chinese Academy of Sciences [A11K011]
语种: 英语
WOS记录号: WOS:000316612900081
ISSN号: 14248220
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/6934
Appears in Collections:轻量化中心_期刊论文

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作者单位: 1. State Key Laboratory of Optical Technologies on Nano-Fabrication and Mirco-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China
2. Lightweight Optics and Advanced Materials Technology Center, Chinese Academy of Sciences, Chengdu 610209, China
3. Department of Communication Engineering, Chengdu University of Information Technology, Chengdu 610225, China
4. East China Institute of Optoelectronic Integrated Devices, Bengbu 233042, China

Recommended Citation:
Luo, Ji,Yao, Jun,Lu, Yonggang,et al. A silver nanoparticle-modified evanescent field optical fiber sensor for methylene blue detection[J]. Sensors (Switzerland),2013,13(3):3986-3997.
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