Conformation Statistics and Entropic Elasticity

2012 ◽  
pp. 33-41 ◽  
Author(s):  
Wenbing Hu
Keyword(s):  
Entropic Elasticity

Reconstructing the mechanical response of polybutadiene rubber based on micro-structural evolution in strain-temperature space: entropic elasticity and strain-induced crystallization as the bridges

Soft Matter ◽  
2020 ◽  
Vol 16 (2) ◽  
pp. 447-455 ◽  
Author(s):  
Pinzhang Chen ◽  
Yuanfei Lin ◽  
Jingyun Zhao ◽  
Lingpu Meng ◽  
Daoliang Wang ◽  
...  
Keyword(s):  
Mechanical Response ◽  
Structural Evolution ◽  
Entropic Elasticity ◽  
Polybutadiene Rubber ◽  
Strain Induced Crystallization ◽  
Induced Crystallization

Micro-structural evolution of polybutadiene rubber in strain-temperature space, and the reconstruction of the macro-mechanical response.

Atomistic simulation of energetic and entropic elasticity in short-chain polyethylenes

2008 ◽  
Vol 52 (2) ◽  
pp. 567-589 ◽  
Author(s):  
T. C. Ionescu ◽  
V. G. Mavrantzas ◽  
D. J. Keffer ◽  
B. J. Edwards
Keyword(s):  
Atomistic Simulation ◽  
Short Chain ◽  
Entropic Elasticity

Tensile and torsional elastomer fiber artificial muscle by entropic elasticity with thermo-piezoresistive sensing of strain and rotation by a single electric signal

2020 ◽  
Vol 7 (12) ◽  
pp. 3305-3315
Author(s):  
Run Wang ◽  
Yanan Shen ◽  
Dong Qian ◽  
Jinkun Sun ◽  
Xiang Zhou ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Natural Rubber ◽  
Artificial Muscle ◽  
Electric Signal ◽  
Artificial Muscles ◽  
Resistance Change ◽  
Entropic Elasticity

Artificial muscles are developed by using twisted natural rubber fiber coated with buckled carbon nanotube sheet, which show tensile and torsional actuations and sensing function via the resistance change by a single electric signal.

Random Sampling Monte-Carlo Approach to Studying Entropic Elasticity Properties of Cell Proteins and Lipids

2010 ◽  
Author(s):  
Eduard Karpov
Keyword(s):  
Monte Carlo ◽  
Random Sampling ◽  
Cell Protein ◽  
Specific Load ◽  
Linear Elastic ◽  
Entropic Elasticity ◽  
Energy Profiles ◽  
Lipid Chain ◽  
Entropic Contribution ◽  
Potential Energy Profiles

An efficient numerical Monte-Carlo method is proposed for the estimation of the entropic contribution to the elastic properties of cell protein and lipid chain biomolecules. Specific load-extension curves are obtained numerically for a group of molecules with degenerate potential energy profiles. Spread of the linear elastic regimes and dependence on the molecular weight and geometric parameters of the molecules are discussed.

Entropic Elasticity of Diluted Central Force Networks

1998 ◽  
Vol 80 (22) ◽  
pp. 4907-4910 ◽  
Author(s):  
Michael Plischke ◽  
Béla Joós
Keyword(s):  
Central Force ◽  
Entropic Elasticity ◽  
Force Networks

Asymptotic Strength Limit of Hydrogen Bond Assemblies in Proteins at Vanishing Pulling Rates

2007 ◽  
Vol 1062 ◽  
Author(s):  
Sinan Keten ◽  
Markus J. Buehler
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Computational Studies ◽  
Entropic Elasticity ◽  
Strength Limit ◽  
Wide Range ◽  
Peptide Hydrogen ◽  
Polypeptide Chains ◽  
Limiting Value ◽  
Intrinsic Strength

ABSTRACTExperimental and computational studies on mechanical unfolding of proteins suggest that rupture forces approach a limiting value of a few hundred pN at vanishing pulling velocities. We develop a fracture mechanics based theoretical framework that considers the free energy competition between entropic elasticity of polypeptide chains and rupture of peptide hydrogen bonds, which we use here to provide an explanation for the intrinsic strength limit of proteins. Our analysis predicts that individual protein domains stabilized by hydrogen bonds can not exhibit rupture forces larger than approximately ≈200 pN, regardless of the presence of a large number of hydrogen bonds. This result explains a wide range of experimental and computational observations.

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