Abstract
To construct an efficient GPx mimic, a novel method for preparing polymer-based vesicles carrying GPx-active sites was developed. A series of block copolymers loaded with recognition and catalytic sites were synthesized based on polystyrene-block-poly[tri(ethylene glycol) methyl ether acrylate]s (PS-PMEO(3) MAs). By altering the molar ratio of the functional copolymers, vesicles with GPx activity were obtained by self-assembly of these functional copolymers through blending. The optimum GPx mimic constructed by the blending process exhibited high catalytic activity and acted as a real catalyst with typical saturation kinetics behavior. The method may be of benefit for designing other enzyme mimics and may cast a light on constructing other biologically related functional nanoparticles.
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