Multi-scale multi-mechanism design of tough hydrogels: building dissipation into stretchy networks.
Multi-scale multi-mechanism design of tough hydrogels: building dissipation into stretchy networks.
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DOI：
10.1039/c3sm52272e
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发表时间：
2014-02-07
期刊：
影响因子：
3.4
通讯作者：
Zhao X
中科院分区：
文献类型：
--
作者：
Zhao X
水凝胶作为在水中溶胀的聚合物网络，通常是脆性的。然而，具有高韧性的水凝胶在许多植物和动物组织以及各种工程应用中起着关键作用。在这里，我们回顾了过去几十年来开发的各种各样的坚韧水凝胶的内在机制。我们表明，坚韧的水凝胶一般具有耗散大量的机械能，但仍然保持高弹性变形下的机制。不同的能量耗散和弹性保持机制的整合和相互作用对于坚韧水凝胶的设计至关重要。首次构建了一个结合各种机制的矩阵，以指导下一代坚韧水凝胶的设计。我们进一步强调，一个特别有前途的设计策略是在多个长度尺度上实现多种机制，使水凝胶具有纳米、微米、介观和宏观结构。
As swollen polymer networks in water, hydrogels are usually brittle. However, hydrogels with high toughness play critical roles in many plant and animal tissues as well as in diverse engineering applications. Here we review the intrinsic mechanisms of a wide variety of tough hydrogels developed over past few decades. We show that tough hydrogels generally possess mechanisms to dissipate substantial mechanical energy but still maintain high elasticity under deformation. The integrations and interactions of different mechanisms for dissipating energy and maintaining elasticity are essential to the design of tough hydrogels. A matrix that combines various mechanisms is constructed for the first time to guide the design of next-generation tough hydrogels. We further highlight that a particularly promising strategy for the design is to implement multiple mechanisms across multiple length scales into nano-, micro-, meso-, and macro-structures of hydrogels.
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影响因子：
3.4
作者：
Bakarich, Shannon E.;Pidcock, Geoffrey C.;Panhuis, Marc In Het
通讯作者：
Panhuis, Marc In Het
影响因子：
--
作者：
Black, Ashley L.;Orlicki, Joshua A.;Craig, Stephen L.
通讯作者：
Craig, Stephen L.
影响因子：
3.5
作者：
Coburn J;Gibson M;Bandalini PA;Laird C;Mao HQ;Moroni L;Seliktar D;Elisseeff J
通讯作者：
Elisseeff J
DOI：
10.1002/jbm.a.32987
发表时间：
2011-02
期刊：
Journal of biomedical materials research. Part A
影响因子：
--
作者：
Brochu AB;Craig SL;Reichert WM
通讯作者：
Reichert WM
影响因子：
4.6
作者：
Abdurrahmanoglu, Suzan;Cilingir, Miray;Okay, Oguz
通讯作者：
Okay, Oguz