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Abstract: Stimuli-responsive gels that exhibit swelling-shrinking behavior by changing external conditions such as temperature and pH have many potential applications as smart materials for sensors, DOS, etc. In this study, we prepared bisphenol A (BPA)-imprinted gels using cyclodextrin (CD) as a ligand for BPA in molecular imprinting. The BPA-imprinted gels shrank remarkably in water containing BPA, but nonimprinted gel did not. The shrinking of BPA-imprinted gels in the presence of BPA was attributed to the formation of the CD-BPA-CD complexes that acted as cross-linking points. The BPA-responsive behavior of the BPA-imprinted gels was effectively improved by introducing a large amount of CD ligands into the gel networks. This paper focuses on the effect of molecular imprinting on the BPA-responsive behavior of the imprinted and nonimprinted gels with various amounts of CD ligands
Template and target information: bisphenol A, BPA
Author keywords: bisphenol A, cyclodextrin, gel, ligand, molecular imprinting, stimuli-responsive gel