Rapidly Visible-Light-Mediated Photogelations for One-Step Engineering Multifunctional Tough Hydrogel Tubes,ACS Macro Letters

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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

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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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