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首页> 外文期刊>ACS applied materials & interfaces >Noncovalent Muscle-Inspired Hydrogel with Rapid Recovery and Antifatigue Property under Cyclic Stress
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Noncovalent Muscle-Inspired Hydrogel with Rapid Recovery and Antifatigue Property under Cyclic Stress

机译：循环应力下具有快速恢复和抗抗抗原性的非共价肌肉启发水凝胶

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摘要

Designing muscle-inspired hydrogels that possess structure and bioactivity similar to muscles is an eternal pursuit in material sciences and tissue engineering. However, the development of a muscle-inspired hydrogel via the formation of noncovalent interactions remains challenging, and its application in sustained loading situations such as cyclic stresses is limited. Herein, H-bonds and microcrystalline domains were introduced, and a noncovalent muscle-inspired hydrogel was developed to mimic both the physical structure and functionality of muscles at the macroscopic level. The hydrogel exhibited excellent mechanical properties (a fracture strength of 2.16 +/- 0.08 MPa, fracture strain of 830 +/- 23%, elastic modulus of 275 +/- 9 KPa, and toughness of 7.04 +/- 0.80 MJ/m(3)), a large energy dissipation (2.00 +/- 0.27 MJ/m(3) at 600% elongation), and a rapid self-recovery (92 +/- 1% toughness recovery within 20 min). Antifatigue behavior of the muscle-inspired hydrogel was observed upon successive tensile and compressive cyclic loadings. Under 100 cycles of loadings, the robustness of the hydrogel has been maintained and even improved, which are achieved due to strain-induced orientation. Furthermore, the hydrogel was found to be self-healed. This hydrogel promises to be among the most relevant drivers for the development of new-generation muscle-inspired hydrogels in the next decade.
机译：设计具有类似于肌肉的结构和生物活性的肌肉启发水凝胶是材料科学和组织工程中的永恒追求。然而，通过形成非共价相互作用的肌肉激发水凝胶的开发仍然是挑战性，其在持续加载情况（例如循环应力）中的应用是有限的。本文引入了H键和微晶结构域，并开发了非共价肌肉启发水凝胶以模仿宏观水平的肌肉的物理结构和功能。水凝胶表现出优异的机械性能（裂缝强度为2.16 +/- 0.08MPa，裂缝应变为830 +/- 23％，弹性模量为275 +/- 9 KPA，韧性为7.04 +/- 0.80 mJ / m（ 3）），大量耗散（2.00 +/- 0.27mJ / m（3），伸长率为600％），并在20分钟内快速自恢复（92 +/- 1％韧性恢复）。在连续的拉伸和压缩循环载荷时观察到肌肉启发水凝胶的抗足抗行为。在100个循环的载荷下，已经保持且甚至改善了水凝胶的稳健性，这是由于应变引起的取向而实现的。此外，发现水凝胶是自愈的。该水凝球有望成为未来十年内新一代肌肉启发水凝胶的最相关驱动因素。

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  • 来源
    《ACS applied materials & interfaces》 |2019年第34期|共9页
  • 作者

    Wang Zengqiang; Lu Shaoyu; Liu Yanhui; Li Tao; Yan Jia; Bai Xiao; Ni Boli; Yang Jing; Liu Mingzhu;

  • 作者单位

    Lanzhou Univ Coll Chem &

    Chem Engn State Key Lab Appl Organ Chem Key Lab Nonferrous Met Chem &

    Resources Utilizat Lanzhou 730000 Gansu Peoples R China;

    Lanzhou Univ Coll Chem &

    Chem Engn State Key Lab Appl Organ Chem Key Lab Nonferrous Met Chem &

    Resources Utilizat Lanzhou 730000 Gansu Peoples R China;

    Lanzhou Univ Coll Chem &

    Chem Engn State Key Lab Appl Organ Chem Key Lab Nonferrous Met Chem &

    Resources Utilizat Lanzhou 730000 Gansu Peoples R China;

    Lanzhou Univ Coll Chem &

    Chem Engn State Key Lab Appl Organ Chem Key Lab Nonferrous Met Chem &

    Resources Utilizat Lanzhou 730000 Gansu Peoples R China;

    Lanzhou Univ Coll Chem &

    Chem Engn State Key Lab Appl Organ Chem Key Lab Nonferrous Met Chem &

    Resources Utilizat Lanzhou 730000 Gansu Peoples R China;

    Qufu Normal Univ Sch Chem &

    Chem Engn Key Lab Life Organ Anal Shandong Prov Qufu 273100 Peoples R China;

    Gansu Tobacco Ind Co Ltd Lanzhou 730050 Gansu Peoples R China;

    Lanzhou Univ Coll Chem &

    Chem Engn State Key Lab Appl Organ Chem Key Lab Nonferrous Met Chem &

    Resources Utilizat Lanzhou 730000 Gansu Peoples R China;

    Lanzhou Univ Coll Chem &

    Chem Engn State Key Lab Appl Organ Chem Key Lab Nonferrous Met Chem &

    Resources Utilizat Lanzhou 730000 Gansu Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学工业;
  • 关键词

    hydrogels; muscle-inspired; noncovalent; antifatigue; orientation;

    机译：水凝胶;肌肉启发;非价位;抗皱;方向;

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