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Rapidly Visible-Light-Mediated Photogelations for One-Step Engineering Multifunctional Tough Hydrogel Tubes
ACS Macro Letters ( IF 5.1 ) Pub Date : 2020-11-03 , DOI: 10.1021/acsmacrolett.0c00621
Wenqing Xiao 1 , Ping Zhang 1 , Hongqiu Wei 1 , You Yu 1
Affiliation  

Hydrogel tubes as one kind of perfusable tubular materials, show promising applications in a wide spectrum of fields. However, there is still a great challenge to design a rapid, biocompatible, and straightforward strategy for one-step engineering tough hydrogel tubes, which have excellent mechanical properties, unique resilience, and multiple functions. Herein, we explore visible-light-mediated orthogonal photochemistry to achieve the fabrication of tough hydrogel tubes with double networks via a coaxial-nozzle spinning technique under short blue-light irradiation (∼20 s). The as-prepared tubes are tough (2.3 MJ m–3) and have mechanical strength (∼300 kPa) with a critical strain of 16, good fatigue resistance, and resilience (>95% within 3 min). These perfusable tubular hydrogels not only can be knitted and assembled to complicated 2D/3D structures, but also are designed to fabricate functional tubes in one step with the applications in fields of smart materials, soft electronics, and sensors.

中文翻译:

用于一步工程多功能坚韧水凝胶管的快速可见光介导光凝胶

水凝胶管作为一种可灌注的管状材料,在广泛的领域中显示出广阔的应用前景。然而,为一步工程坚韧的水凝胶管设计一种快速、生物相容且直接的策略仍然存在巨大挑战,该管具有优异的机械性能、独特的弹性和多种功能。在此,我们探索了可见光介导的正交光化学,以通过同轴喷嘴旋转技术在短蓝光照射(~20 秒)下实现具有双网络的坚韧水凝胶管的制造。准备好的管子很坚固(2.3 MJ m –3)并具有机械强度(~300 kPa),临界应变为 16,具有良好的抗疲劳性和回弹性(3 分钟内>95%)。这些可灌注的管状水凝胶不仅可以编织和组装成复杂的 2D/3D 结构,还可以用于一步制造功能管,应用于智能材料、软电子和传感器等领域。
更新日期:2020-11-17
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