MIPdatabase
Authors: Jiang GS, Zhong SA, Chen L, Blakey I, Whitaker A
Article Title: Synthesis of molecularly imprinted organic-inorganic hybrid azobenzene materials by sol-gel for radiation induced selective recognition of 2,4-dichlorophenoxyacetic acid.
Publication date: 2011
Journal: Radiation Physics and Chemistry
Volume: 80
Issue: (2)
Page numbers: 130-135.
DOI: 10.1016/j.radphyschem.2010.07.020
Alternative URL: http://www.sciencedirect.com/science/article/B6TVT-50PCM85-1/2/d6f055fccf3880c153a334291d99abf0
Abstract: A novel photoresponsive functional monomer bearing a siloxane polymerisable group and azobenzene moieties was synthesized. This monomer was then used to prepare photoresponsive molecularly imprinted polymers (MIP), which have specific binding sites for 2,4-dichlorophenoxyacetic acid (2,4-D) through hydrogen bonding moieties. The binding affinity of the imprinted recognition sites was switchable by alternate irradiations with ultraviolet and visible light, suggesting that azobenzene groups located inside the binding sites could be used as chemical sensors and the trans-cis isomerization could regulate the affinity for the 2,4-D. In addition, the concentration of the 2,4-D was able to be quantified by monitoring the trans-to-cis photoisomerization rate constant
Template and target information: 2,4-dichlorophenoxyacetic acid, 2,4-D
Author keywords: Molecular imprinted sol-gel materials, 2,4-D, photoisomerization, Organic-inorganic hybrids
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