Hydrogel with Ultrafast Self-Healing Property Both in Air and Underwater,ACS Applied Materials & Interfaces

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Hydrogel with Ultrafast Self-Healing Property Both in Air and Underwater
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2017-12-21 00:00:00 , DOI: 10.1021/acsami.7b17118
Wei-Peng Chen _{1,

2} , De-Zhao Hao _{3,

4} , Wan-Jun Hao ₁ , Xing-Lin Guo ₂ , Lei Jiang ₃

Affiliation

Self-healing hydrogels have a great potential application in 3D printing, soft robotics, and tissue engineering. There have been a large number of successful strategies for developing hydrogels that exhibit rapid and autonomous recovery. However, developing a gel with an excellent self-healing performance within several seconds is still an enormous challenge. Here, an ultrafast self-healing hydrogel based on an agarose/PVA double network (DN) is presented. The gel utilizing a dynamic borate bond exhibits 100% cure in strength and elongation after healing for 10 s in air, and this hydrogel shows an excellent self-healing property underwater as well. In addition, the agarose/PVA DN hydrogel exhibits a smart self-healing property for an in situ priority recovery, ensuring that the shape and the function are the same as those of the original one. With the combination of self-healing properties, such a hydrogel could be applied to a board range of areas.

中文翻译：

在空气和水下均具有超快自愈性能的水凝胶

自修复水凝胶在3D打印，软机器人和组织工程中具有巨大的潜在应用。已经开发出许多成功的策略来开发表现出快速和自主恢复的水凝胶。然而，在几秒钟内开发出具有优异自修复性能的凝胶仍然是巨大的挑战。在此，提出了一种基于琼脂糖/ PVA双网络（DN）的超快速自修复水凝胶。利用动态硼酸酯键的凝胶在空气中愈合10 s后，强度和伸长率均达到100％固化，并且这种水凝胶在水下也显示出优异的自愈性能。此外，琼脂糖/ PVA DN水凝胶具有智能的自我修复特性，可就地优先恢复，确保其形状和功能与原始产品相同。

更新日期：2017-12-21

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