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Abstract: Molecularly imprinted polymer-magnetic iron oxide composite materials which exhibit recognition properties and fan be withdrawn from solution by application of a magnetic field were prepared for the first time. Magnetic iron oxide was incorporated using a suspension polymerisation methodology with a perfluorocarbon liquid as the dispersing phase for the preparation of methacrylic acid-1,1,1- trimethylolpropane trimethacrylate copolymer beads molecularly imprinted with the beta-hlocker (S)-propranolol. The resulting superparamagnetic imprinted polymer beads were capable of binding [H- 3]-(S)-propranolol more strongly than a non-imprinted, otherwise identical, polymer. In a competitive radioligand binding assay using a magnet to separate polymer from solution, (R)-propranolol and (R,S)-metoprolol exhibited cross-reactivities of 19 and 0.7%, respectively, compared with (S)-propranolol
Template and target information: (S)-propranolol