通过三元低共熔溶剂的前沿聚合快速制备ZnO纳米复合水凝胶及其性能研究
Rapid preparation of ZnO nanocomposite hydrogels by frontal polymerization of a ternary DES and performance study.
作者信息
Li Bin, Zhou Mengjing, Cheng Ming, Liu Jizhen, Xu Xiaojia, Xie Xiangyu
机构信息
School of Mechanical Engineering, Wuhan Polytechnic University Wuhan Hubei 430023 China
Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics, Wuhan University of Technology Wuhan Hubei 430070 China.
出版信息
RSC Adv. 2022 Apr 28;12(20):12871-12877. doi: 10.1039/d2ra01626e. eCollection 2022 Apr 22.
A deep eutectic solvent (DES) was synthesized from urea (U), acrylamide (AM), and choline chloride (ChCl). ZnO was dispersed in the DES as a filler, and nanocomposite hydrogels (ZnO/P(U-AM-ChCl)) were successfully prepared by frontal polymerization (FP). The hydrogels were verified by Fourier infrared spectroscopy to contain ZnO nanoparticles (ZnO-NPs). The swelling behaviour, conductivity, and antibacterial properties of the ZnO nanocomposite hydrogels were investigated. The results showed that the ZnO/P(U-AM-ChCl) hydrogels had excellent antibacterial properties and exhibited super high inhibition rates of 81.87% and 88.42% against two basic colonies of Gram-negative and Gram-positive bacteria, respectively. The equilibrium swelling of the hydrogels was found to increase significantly from 9.30 to 12.29 with the addition of ZnO, while the ZnO/P(U-AM-ChCl) hydrogel conductivity exhibited good UV sensitivity. This study provides a rapid and low-energy method for the preparation of nanocomposite hydrogels with excellent antibacterial properties.
一种深共熔溶剂（DES）由尿素（U）、丙烯酰胺（AM）和氯化胆碱（ChCl）合成。将氧化锌（ZnO）作为填料分散在DES中，通过前沿聚合（FP）成功制备了纳米复合水凝胶（ZnO/P（U-AM-ChCl））。通过傅里叶红外光谱验证水凝胶含有氧化锌纳米颗粒（ZnO-NPs）。研究了ZnO纳米复合水凝胶的溶胀行为、导电性和抗菌性能。结果表明，ZnO/P（U-AM-ChCl）水凝胶具有优异的抗菌性能，对革兰氏阴性菌和革兰氏阳性菌的两种基本菌落的抑制率分别高达81.87%和88.42%。发现随着ZnO的加入，水凝胶的平衡溶胀率从9.30显著增加到12.29，而ZnO/P（U-AM-ChCl）水凝胶的导电性表现出良好的紫外敏感性。本研究为制备具有优异抗菌性能的纳米复合水凝胶提供了一种快速且低能耗的方法。
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