NDLI: Hydrogel Photonic Sensor for the Detection of 3-Pyridinecarboxamide

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Pan, Zeng Li, Zhiliang Liu, Yu Gao, Jianping Yuan, Yanxia Liu, Yue
Description	Author Affiliation: Yuan Y ( School of Science, Tianjin University, Tianjin, 300072, P. R. China.)
Abstract	Molecular imprinting is recognized as a powerful technique for preparing polymeric structures that contains tailor-made recognition sites for certain molecules. By combining a responsive hydrogel photonic crystal and molecular imprinting of 3-pyridinecarboxamide, polyacrylamide (PAM) imprinted photonic crystals (IPCs) with an inverse opal structure were prepared. They showed a rapid, recoverable, and selective response to 3-pyridinecarboxamide, which was detected by measuring the diffraction peak. The position of the diffraction peak could be tuned by copolymerizing acrylamide (AM) with acrylic acid (AA), by changing the ratio of AM to AA, by adding N,N′-methylene bisacrylamide to the monomers, or by imprinting molecules to monomers. More interestingly, the change in the Bragg diffraction of the IPCs can be directly converted into a readable optical signal that is visible to the naked eye without any labeling treatment.
ISSN	09476539
e-ISSN	15213765
Journal	Chemistry - A European Journal
Issue Number	1
Volume Number	18
Language	English
Publisher	Wiley-VCH;ChemPubSoc Europe
Publisher Date	2012-01-02
Publisher Place	Germany
Access Restriction	Open
Subject Keyword	Chemistry
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Catalysis

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Hydrogel Photonic Sensor for the Detection of 3-Pyridinecarboxamide