Molecularly Imprinted Photonic Hydrogels as Calorimetric Sensors for Rapid and Label-free Detection of Vanillin
Peng, Hailong1,2; Wang, Shenqi1; Zhang, Zhong1; Xiong, Hua1; Li, Jinhua3; Chen, Lingxin3; Li, Yanbin4,5
2012-02-29
Source PublicationJOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
ISSN0021-8561
Volume60Issue:8Pages:1921-1928
Contribution Rank[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
AbstractA 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.
Corresponding AuthorXiong, H (reprint author), Nanchang Univ, State Key Lab Food Sci & Technol, Nanchang 330047, Peoples R China. huaxiong100@yahoo.com.cn
KeywordVanillin Colorimetric Detection Molecular Imprinting Photonic Hydrogel
Department环境化学实验室 
Subject AreaAgriculture ; Chemistry ; Food Science & Technology
Funding OrganizationNational 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]
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Indexed BySCI
WOS KeywordSOLID-PHASE EXTRACTION ; SELECTIVE DETERMINATION ; OPTICAL-PROPERTIES ; SENSING MATERIALS ; ETHYL VANILLIN ; POLYMERS ; CRYSTALS ; FILMS ; OPAL ; GROWTH
SubtypeArticle
Language英语
WOS Research AreaAgriculture ; Chemistry ; Food Science & Technology
WOS IDWOS:000300854900005
Citation statistics
Cited Times:50[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/5515
Collection中科院海岸带环境过程与生态修复重点实验室_环境化学实验室
Affiliation1.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
Recommended Citation
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.
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