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Reference type: Journal
Authors: Yang YZ, Tang Q, Gong CB, Ma XB, Peng JD, Lam MHW
Article Title: Ultrasensitive detection of bisphenol A in aqueous media using photoresponsive surface molecular imprinting polymer microspheres.
Publication date: 2014
Journal: New Journal of Chemistry
Volume: 38
Issue: (4)
Page numbers: 1780-1788.
DOI: 10.1039/C3NJ01598J

Abstract: Photoresponsive surface molecular imprinting polymer (SMIP) microspheres were synthesized on silica microspheres by surface polymerization using a water-soluble azobenzene-containing 4-[(4-methacryloyloxy)phenylazo]benzenesulfonic acid as the functional monomer. The SMIP microspheres displayed good photoresponsive properties and specific affinity towards bisphenol A (BPA) with high recognition ability (maximal adsorption capacity: 6.96 μmol g-1) and fast binding kinetics (binding constant: 2.47 x 10^4 M-1) in aqueous media. Upon alternate irradiation at 365 and 440 nm, the SMIP microspheres could quantitatively bind and release BPA. Analytical application of the SMIP microspheres for the detection of trace BPA concentration in mineral water and tap water has been carried out successfully, and therefore a simple and quick detection method for trace BPA in the environment was established
Template and target information: bisphenol A, BPA

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