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Molecularly Imprinted Photonic Hydrogels as Calorimetric Sensors for Rapid and Label-free Detection of Vanillin

文献类型：期刊论文

作者Peng, Hailong1,2; Wang, Shenqi1; Zhang, Zhong1; Xiong, Hua1; Li, Jinhua3; Chen, Lingxin3; Li, Yanbin4,5
刊名JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
出版日期2012-02-29
卷号60期号:8页码:1921-1928
关键词Vanillin Colorimetric Detection Molecular Imprinting Photonic Hydrogel
ISSN号0021-8561
产权排序[Peng, Hailong; Wang, Shenqi; Zhang, Zhong; Xiong, Hua] Nanchang Univ, State Key Lab Food Sci & Technol, Nanchang 330047, Peoples R China; [Peng, Hailong] Nanchang Univ, Dept Chem & Pharmaceut Engn, Nanchang 330031, Peoples R China; [Li, Jinhua; Chen, Lingxin] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China; [Li, Yanbin] Zhejiang Univ, Coll Biosyst Engn & Food Sci, Hangzhou 310058, Zhejiang, Peoples R China; [Li, Yanbin] Univ Arkansas, Dept Biol & Agr Engn, Fayetteville, AR 72701 USA
通讯作者Xiong, H (reprint author), Nanchang Univ, State Key Lab Food Sci & Technol, Nanchang 330047, Peoples R China. huaxiong100@yahoo.com.cn
文献子类Article
英文摘要A novel colorimetric sensor for the rapid and label-free detection of vanillin, based on the combination of photonic crystal and molecular imprinting technique, was developed. The sensing platform of molecularly imprinted photonic hydrogel (MIPH) was prepared by a noncovalent and self-assembly approach using vanillin as a template molecule. Morphology characterization by scanning electron microscope (SEM) showed that the MIPH possessed a highly ordered three-dimensional (3D) macroporous structure with nanocavities. The vanillin recognition events of the created nonocavities could be directly transferred into readable optical signals through a change in Bragg diffraction of the ordered macropores array of MIPH. The Bragg diffraction peak shifted from 451 to 486 nm when the concentration of the vanillin was increased from 10(-12) to 10(-3) mol L-1 within 60 s, whereas there were no obvious peak shifts for methyl and ethyl vanillin, indicating that the MIPH had high selectivity and rapid response for vanillin. The adsorption results showed that the hierarchical porous structure and homogeneous layers were formed in the MIPH with higher adsorption capacity. The application of such a label-free sensor with high selectivity, high sensitivity, high stability, and easy operation might offer a potential method for rapid real-time detection of trace vanillin.; A novel colorimetric sensor for the rapid and label-free detection of vanillin, based on the combination of photonic crystal and molecular imprinting technique, was developed. The sensing platform of molecularly imprinted photonic hydrogel (MIPH) was prepared by a noncovalent and self-assembly approach using vanillin as a template molecule. Morphology characterization by scanning electron microscope (SEM) showed that the MIPH possessed a highly ordered three-dimensional (3D) macroporous structure with nanocavities. The vanillin recognition events of the created nonocavities could be directly transferred into readable optical signals through a change in Bragg diffraction of the ordered macropores array of MIPH. The Bragg diffraction peak shifted from 451 to 486 nm when the concentration of the vanillin was increased from 10(-12) to 10(-3) mol L-1 within 60 s, whereas there were no obvious peak shifts for methyl and ethyl vanillin, indicating that the MIPH had high selectivity and rapid response for vanillin. The adsorption results showed that the hierarchical porous structure and homogeneous layers were formed in the MIPH with higher adsorption capacity. The application of such a label-free sensor with high selectivity, high sensitivity, high stability, and easy operation might offer a potential method for rapid real-time detection of trace vanillin.
学科主题Agriculture ; Chemistry ; Food Science & Technology
URL标识查看原文
WOS关键词SOLID-PHASE EXTRACTION ; SELECTIVE DETERMINATION ; OPTICAL-PROPERTIES ; SENSING MATERIALS ; ETHYL VANILLIN ; POLYMERS ; CRYSTALS ; FILMS ; OPAL ; GROWTH
WOS研究方向Agriculture ; Chemistry ; Food Science & Technology
语种英语
WOS记录号WOS:000300854900005
资助机构National Natural Science Foundation of China[31160317, 21105117, 20975089]; State Key Laboratory of Food Science and Technology of Nanchang University[SKLF-KF-201006]; Chinese Academy of Sciences[KZCX2-EW-206]
公开日期2012-06-13
源URL[http://ir.yic.ac.cn/handle/133337/5516]  
专题烟台海岸带研究所_山东省海岸带环境工程技术研究中心
作者单位1.Nanchang Univ, State Key Lab Food Sci & Technol, Nanchang 330047, Peoples R China
2.Nanchang Univ, Dept Chem & Pharmaceut Engn, Nanchang 330031, Peoples R China
3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China
4.Zhejiang Univ, Coll Biosyst Engn & Food Sci, Hangzhou 310058, Zhejiang, Peoples R China
5.Univ Arkansas, Dept Biol & Agr Engn, Fayetteville, AR 72701 USA
推荐引用方式
GB/T 7714		 Peng, Hailong,Wang, Shenqi,Zhang, Zhong,et al. Molecularly Imprinted Photonic Hydrogels as Calorimetric Sensors for Rapid and Label-free Detection of Vanillin[J]. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,2012,60(8):1921-1928.
APA Peng, Hailong.,Wang, Shenqi.,Zhang, Zhong.,Xiong, Hua.,Li, Jinhua.,...&Li, Yanbin.(2012).Molecularly Imprinted Photonic Hydrogels as Calorimetric Sensors for Rapid and Label-free Detection of Vanillin.JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,60(8),1921-1928.
MLA Peng, Hailong,et al."Molecularly Imprinted Photonic Hydrogels as Calorimetric Sensors for Rapid and Label-free Detection of Vanillin".JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 60.8(2012):1921-1928.

入库方式： OAI收割

来源：烟台海岸带研究所

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