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Reference type: Journal
Authors: Xue F, Duan TR, Huang SY, Wang QH, Xue M, Meng ZH
Article Title: A covalently imprinted photonic crystal for glucose sensing.
Publication date: 2013
Journal: Journal of Nanomaterials
Volume: 2013
Page numbers: Article ID 530701.
DOI: 10.1155/2013/530701
Alternative URL: http://www.hindawi.com/journals/jnm/aip/530701/

Abstract: We demonstrate a glucose sensing material based on the combination of photonic crystal templating and a molecular imprinting technique. In the presence of the target molecule glucose, poly(N-isopropylacrylamide-co-2-hydroxyethylmethacrylate) hydrogel with pendent phenylboronic acid groups was synthesized in the void of a poly(methyl methacrylate) (PMMA) colloidal crystal. After removing the PMMA photonic crystal template and glucose molecules, a 3D ordered porous covalently imprinted photonic crystal (CIPC) hydrogel was created. The unique 3D ordered porous hydrogel revealed optical changes in responsive to glucose concentration. At pH = 11 and 37 C, the diffraction of CIPC redshifted from 725 nm to 880 nm in response to 20 mmol L-1 glucose. Due to the covalently imprinted recognizer, boronic acid group, the selectivity of the CIPC towards glucose over D-ribose and L-rhamnose was improved significantly.
Template and target information: glucose

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