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Reference type: Journal
Authors: Wu YL, Chen L, Hao TF, Lu J, Gao J, Lin XY, Cui JY, Li CX, Yan YS
Article Title: Bioinspired synthesis of multiple-functional nanocomposite platform showing optically and thermally responsive affinity: Application to environmentally responsive separation membrane.
Publication date: 2018
Journal: Journal of Colloid and Interface Science
Volume: 531
Page numbers: 1-10.
DOI: 10.1016/j.jcis.2018.07.033
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0021979718307902

Abstract: A tremendous effort has been made for the synthesis and multifunction of environmentally responsive and selective separation membranes. With the bioinspired design of polydopamine (pDA)-assisted inorganic film, we proposed a simple, yet efficient, thermo-responsive cell culture substrate. Herein, a Ag/TiO2/pDA-based nanocomposite structure was initially obtained, and the ciprofloxacin-imprinted membranes (MINCMs) with thermo-responsive recognition sites were then synthesized by using NIPAm as backbone monomer. The opto-thermally responsive molecularly imprinted membranes (OT-MIMs) were obtained through in situ reduction of HAuCl4 on membrane surfaces, Au nanoparticles were used as the light-heat converters. The light-switching principle was elaborated as well as the energy conversions that took place in this system. These conformational changes finally allowed the constructions or destructions of ciprofloxacin-imprinted sites. Due to the formation of the opto-thermally responsive ciprofloxacin-imprinted sites, rapid adsorption dynamics and opto-thermally responsive perm-selectivity toward templates were both achieved. Therefore, 58.65 mg/g of adsorption capacity and 4.91 of permselectivity factor from OT-MIMs were successfully obtained. Importantly, the as-designed bioinspired strategy led to a state-of-the-art design that was capable of reversibly controlling the flow rate (J) of ciprofloxacin from 12.10 to 4.93 mg min-1 cm-2 in less than a few minutes using light
Template and target information: ciprofloxacin
Author keywords: pDA-assisted inorganic film formation, Molecularly imprinted nanocomposite membranes, optoOpto-thermally responsive separation, Ciprofloxacin


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