Preparation and selective binding characterization of Bisphenol A imprinted polyethersulfone particles

Abstract

Bisphenol A (BPA) imprinted polyethersulfone (PES) particles were prepared for the recognition of BPA by means of phase inversion method. During the preparation of the BPA-imprinted particles, acetone, ethanol and acetone/ethanol solutions were used to extract the template BPA molecules. The SEM morphology and the recognition experiments suggested that the acetone/ethanol provided an efficient way to extract the BPA from the imprinted PES particles. The binding and recognition ability for the imprinted particles disappeared under alkali condition, and they recovered as soon as possible when the solution changed from alkali condition to neutral or acid condition. With the addition of Na 1 , Mg 21 , and Cl 2 , the binding amounts for the imprinted particles and nonimprinted particles were not changed heavily, which suggested the potential application of the particles in seawater. In the BPA/BPA analogue mixed solution, the imprinted particles showed selectivity for the template molecules BPA. The FTIR results suggested that the PES and BPA interacted through hydrogen bonds.

Molecularly Imprinted Polymer Submicron Particles Tailored for Extraction of Trace Estrogens in Water

“…Maximum binding for MIP submicron particles is 30 ± 10 µ mol (= 8 ± 2 mg) of E 2 per gram of MIP particles, which is similar to typical binding capacities of MIP micro -particles (2 ± 1 µ m in diameter) [81] . Both MIP and NIP particles have high potential for applications in the removal of E2 from wastewater.…”

Preparation of dummy template imprinted polymers at surface of silica microparticles for the selective extraction of trace bisphenol A from water samples

“…The sorption capacity of DMIP1, DMIP2 were 918, 958 mol g −1 , respectively, which were about three times that of the corresponding NIP. The sorption capacities of the DMIPs prepared were superior to those of most MIPs using BPA as a template reported in the literature [7,[32][33][34]. The largest sorption capacity of MIPs for BPA in the literature was 298 mol g −1 , which was only one-third of ours.…”

“…5, it only took 40 min for DMIP1, DMIP2 and NIP to achieve the equilibrium. The DMIPs had a faster sorption kinetics feature than the BPA-imprinted polymers in the previous reports [33][34][35], which spent at least 4 h to reach the equilibrium. Since the recognition sites of BPA-imprinted polymers in the literature existed not only at the surface but also in the deep polymer matrix, it took a longer time for target to access the binding sites in the deep polymer.…”

Preparation of polyethersulfone–alginate microcapsules for controlled release

“…[16][17][18][19] PES membrane presents a unique architecture having a continuous wall with a porous interior, which exhibits unique encapsulation and delivery properties. 20,21 Thus, it has potential application in the field of drug delivery.…”