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化学工业与工程 2017, Vol. 34 Issue (5) :65-70    DOI: 10.13353/j.issn.1004.9533.20161025
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基于组氨酸与Cu(II)配位作用的凝胶光子晶体传感器研究
张小芳, 余莉萍
天津大学理学院化学系, 天津 300350
Hydrogel Photonic Crystal Sensor Based on Complexation Reaction
Zhang Xiaofang, Yu Liping
Department of Chemistry, School of Science, Tianjin University, Tianjin 300350, China

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摘要 

构筑了一种基于组氨酸与Cu(II)配位作用的新型凝胶光子晶体传感器,并研究了其对溶液中Cu(II)的传感性能。Cu(II)与固载有组氨酸的凝胶光子晶体在配位力的驱动下发生作用,导致凝胶光子晶体产生体积溶胀,引起其Bragg衍射峰发生红移。考察了组氨酸用量、溶液pH值、离子强度等条件对Cu(II)传感性能的影响,最后得到凝胶光子晶体的Bragg衍射峰位移值Δλ与Cu(II)浓度对数(10-9~10-5 mol·L-1范围内)呈线性关系,依此实现了溶液中Cu(II)的简便定量检测。此外,还考察了传感过程的可逆性、响应速度等,并对其传感机理作了初步探索。

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张小芳
余莉萍
关键词水凝胶   光子晶体   传感分析   组氨酸        
Abstract

A novel hydrogel photonic crystal (HPC) sensor based on complexation reaction has been prepared to be used for Cu(Ⅱ) determination. Histidine-immobilized HPC was fabricated and its responses to Cu(Ⅱ) were monitored through readable Bragg diffraction shifts by using a fiber optic spectrometer. A functional relationship was found between the red-shift Δλ and the logarithm of Cu(Ⅱ) concentrations (lgc) in range of 10-9~10-5 mol·L-1. Effects of histidine content, pH and ion strength on the response of HPC were examined experimentally. The reversibility and the response time of HPC to Cu(Ⅱ) were also investigated, and the response mechanism of the response process was explored.

Keywordshydrogel;   photonic crystal;   sensor;   histidine;   copper     
Received 2016-03-15;
Corresponding Authors: 余莉萍,E-mail:lipingyu@tju.edu.cn.     Email: lipingyu@tju.edu.cn
About author: 张小芳(1989-),女,硕士研究生,主要研究方向:光子晶体在分析中的应用.
引用本文:   
张小芳, 余莉萍.基于组氨酸与Cu(II)配位作用的凝胶光子晶体传感器研究[J].  化学工业与工程, 2017,34(5): 65-70
Zhang Xiaofang, Yu Liping.Hydrogel Photonic Crystal Sensor Based on Complexation Reaction[J].  Chemcial Industry and Engineering, 2017,34(5): 65-70
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