Search research articles

关于 JoVE

概览领导团队博客 JoVE 帮助中心

作者

出版流程编辑委员会范围与政策同行评审常见问题投稿

图书馆员

用户评价订阅访问资源图书馆顾问委员会常见问题

研究

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments 存档

教育

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual 教师资源中心教师网站

使用条款与条件

相关概念视频

Hooke's Law

Hooke's Law

Hooke's law, a pivotal principle in material science, establishes that the strain a material undergoes is directly proportional to the applied stress, defined by a factor called the modulus of elasticity or Young's modulus.

Mechanical Protein Functions

Mechanical Protein Functions

Proteins perform many mechanical functions in a cell. These proteins can be classified into two general categories- proteins that generate mechanical forces and proteins that are subjected to mechanical forces. Proteins providing mechanical support to the structure of the cell, such as keratin, are subjected to mechanical force, whereas proteins involved in cell movement and transport of molecules across cell membranes, such as an ion pump, are examples of generating mechanical force.

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序

Same author

Engineering the Self-Assembly of Bacterial Microcompartment Shell Proteins via Charged Mutations.

ACS nano·2026

Same author

Unique Hierarchical Mesostructures Arising from Biobased Double-Crystalline PLLA-<i>b</i>-PHDO-<i>b</i>-PLLA ABA Triblock Copolymers.

Biomacromolecules·2026

Same author

Solvent-Dependent Mechanical Response of De Novo Helix Repeat Proteins.

The journal of physical chemistry. B·2026

Same author

Mechanophore cross-linking enhances ballistic energy dissipation of polymers.

Nature·2026

Same author

Role of Polymer-Protein Interactions in the Dynamics of Polymer-Integrated Protein Crystals.

Journal of the American Chemical Society·2026

Same author

Non-isocyanate polyurethane foams: where we stand and what comes next?

Chemical Society reviews·2026

Search research articles

相关实验视频

Updated: Jun 9, 2025

Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing

Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing

Published on: June 28, 2024

在基于蛋白质的机械超材料中进行应变学习.

Naroa Sadaba^1,2, Eva Sanchez-Rexach^1,2, Curt Waltmann³

¹Department of Chemistry, University of Washington, Seattle, WA 98195.

Proceedings of the National Academy of Sciences of the United States of America

|October 30, 2024

概括

研究人员开发了一种基于蛋白质的新型聚合物,该聚合物在变形和恢复周期后得到加强和刚性. 在3D打印的元材料中,这种"应变学习"行为增强了机械性能,模仿了自然材料的重塑.

关键词:

添加剂制造添加剂制造添加剂制造机械元材料是机械元材料.蛋白质蛋白质是蛋白质蛋白质的组成部分.形状记忆形状记忆形状记忆压力学习是一种学习.

更多相关视频

Designing Silk-silk Protein Alloy Materials for Biomedical Applications

Designing Silk-silk Protein Alloy Materials for Biomedical Applications

Published on: August 13, 2014

DNA Nanotubes as a Versatile Tool to Study Semiflexible Polymers

DNA Nanotubes as a Versatile Tool to Study Semiflexible Polymers

Published on: October 25, 2017

相关实验视频

Last Updated: Jun 9, 2025

Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing

Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing

Published on: June 28, 2024

Designing Silk-silk Protein Alloy Materials for Biomedical Applications

Designing Silk-silk Protein Alloy Materials for Biomedical Applications

Published on: August 13, 2014

DNA Nanotubes as a Versatile Tool to Study Semiflexible Polymers

DNA Nanotubes as a Versatile Tool to Study Semiflexible Polymers

Published on: October 25, 2017

科学领域:

聚合物科学聚合物科学
材料科学材料科学材料科学
机械工程机械工程

背景情况:

聚合物网的机械变形可能导致材料故障.
在变形后提高机械完整性的材料的开发对于主动和形状记忆应用至关重要.

研究的目的:

通过使用基于蛋白质的聚合物来研究机械元材料的增材制造.
描述这些材料在形状恢复周期后独特的硬化和强化行为.

主要方法:

使用基于牛血清白蛋白的聚合物进行添加剂制造.
在整洁的树脂上进行循环张力和回收实验.
在3D打印的晶格元材料上进行了压缩实验.

主要成果:

循环张力和恢复使整洁树脂的强度和刚度增加了约60%.
这种被称为"菌株学习"的现象,归因于蛋白质机制体中储存的长度的释放和保存.
在某些晶格元材料中,应变学习效应被放大,在恢复后,硬度增加了高达2.5倍.

结论:

蛋白质聚合物应变学习元材料在变形后表现出自主重塑.
这些材料为创建模仿自然改造过程的先进材料提供了一个新的平台.
这些发现对设计各种应用的弹性和适应性材料有影响.