Smart hydrogels: Network design and emerging applications
Smart hydrogels: Network design and emerging applications
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智能水凝胶：网络设计和新兴应用
DOI：
10.1002/cjce.23328
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发表时间：
2018-08
影响因子：
2.1
通讯作者：
Chu Liang-Yin
中科院分区：
文献类型：
--
作者：
Liu Zhuang;Wei Jie;Faraj Yousef;Ju Xiao-Jie;Xie Rui;Wang Wei;Chu Liang-Yin
水凝胶由于其亲水性的三维聚合物网络，能够吸附大量的水；因此，它们的物理性质类似于软组织，如软骨和肌肉。刺激响应智能水凝胶特别有趣，因为它们能够响应各种外源和/或内源刺激，如pH、热、光、磁等。由于其多用途和独特的性能，智能水凝胶在药物控制释放、组织工程支架、固/水稳定等方面显示出巨大的潜力，在这些领域，人们非常需要快速的响应性能和出色的力学性能。水凝胶的响应度和力学性能高度依赖于它们的聚合物网络结构。因此，网络结构设计策略在各种应用中具有重要的意义。在本文中，我们回顾了各种网络设计策略，以构建具有快速响应性和/或高机械性能的智能水凝胶网络，以及智能水凝胶的新兴应用，如控制释放系统，检测传感器，软阀和响应执行器。展望以及当前面临的挑战，这种创新的刺激响应聚合物材料的应用也解决了。
Hydrogels are capable of adsorbing large quantities of water due to their hydrophilic three‐dimensional polymeric networks; thus, their physical properties are similar to soft tissues such as cartilage and muscle. Stimuli‐responsive smart hydrogels are particularly interesting because of their ability to respond to various exogenous and/or endogenous stimuli such as pH, thermal, light, magnetism, etc. Because of their versatile and unique properties, smart hydrogels show great potential in controlled drug release, tissue engineering scaffolds, solid/water stabilization, etc., wherein a rapid responsive property and outstanding mechanical properties are highly desired. The degree of responsiveness and mechanical properties of hydrogels are highly dependent on their polymeric network structures. Thus, the network structure design strategies are of great interest and particular importance for various applications. In this paper, we review various network design strategies to build smart hydrogel networks with rapid responsiveness and/or high mechanical properties, as well as the emerging applications of smart hydrogels such as controlled release systems, detection sensors, soft valves, and responsive actuators. The perspectives as well as current challenges facing the applications of such innovative stimuli‐responsive polymeric materials are also addressed.
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影响因子：
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