Size-dependent formation of membrane nanotubes: continuum modeling and molecular dynamics simulations

2018 ◽  
Vol 20 (5) ◽  
pp. 3474-3483 ◽  
Author(s):  
Falin Tian ◽  
Tongtao Yue ◽  
Wei Dong ◽  
Xin Yi ◽  
Xianren Zhang
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Lipid Membrane ◽  
Continuum Theory ◽  
Mechanical Behaviors ◽  
Continuum Modeling ◽  
Membrane Nanotubes ◽  
Size Dependent ◽  
Structural Lipid ◽  
Dynamics Simulations

With continuum theory and molecular dynamics simulations we demonstrated that the lipid membrane upon extraction exhibits size- and tension-dependent mechanical behaviors, and different structural lipid rearrangements in different leaflets.

Size-Dependent Elasticity of Silicon Nanowires

2009 ◽  
Vol 60-61 ◽  
pp. 315-319 ◽  
Author(s):  
W.W. Zhang ◽  
Qing An Huang ◽  
H. Yu ◽  
L.B. Lu
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Silicon Nanowires ◽  
First Principles ◽  
Si Nanowires ◽  
Size Dependent ◽  
Reconstructed Surfaces ◽  
Strain Relationship ◽  
Dynamics Simulations ◽  
Good Agreement

Molecular dynamics simulations are carried out to characterize the mechanical properties of [001] and [110] oriented silicon nanowires, with the thickness ranging from 1.05nm to 3.24 nm. The nanowires are taken to have ideal surfaces and (2×1) reconstructed surfaces, respectively. A series of simulations for square cross-section Si nanowires have been performed and Young’s modulus is calculated from energy–strain relationship. The results show that the elasticity of Si nanowires is strongly depended on size and surface reconstruction. Furthermore, the physical origin of above results is analyzed, consistent with the bond loss and saturation concept. The results obtained from the molecular dynamics simulations are in good agreement with the values of first-principles. The molecular dynamics simulations combine the accuracy and efficiency.

scholarly journals Variable tilt on lipid membranes

2014 ◽  
Vol 470 (2172) ◽  
pp. 20140463 ◽  
Author(s):  
P. Rangamani ◽  
D. J. Steigmann
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Lipid Membranes ◽  
Continuum Theory ◽  
Linear Version ◽  
Dynamics Simulations ◽  
Membrane Shape ◽  
Planar Membranes

A continuum theory for lipid membranes is developed that accounts for mechanical interactions between lipid tilt and membrane shape. For planar membranes, a linear version of the theory is used to predict tilt variations similar to those observed in experiments and molecular dynamics simulations.

scholarly journals Molecular Dynamics Simulations of the Permeation of Bisphenol A and Pore Formation in a Lipid Membrane

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Liang Chen ◽  
Junlang Chen ◽  
Guoquan Zhou ◽  
Yu Wang ◽  
Can Xu ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Bisphenol A ◽  
Molecular Dynamics Simulations ◽  
Pore Formation ◽  
Lipid Membrane ◽  
Dynamics Simulations

Interaction of fullerene chains and a lipid membrane via computer simulations

RSC Advances ◽  
2014 ◽  
Vol 4 (57) ◽  
pp. 30215-30220 ◽  
Author(s):  
Wen-de Tian ◽  
Kang Chen ◽  
Yu-qiang Ma
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Computer Simulations ◽  
Membrane Structure ◽  
Lipid Membrane ◽  
Coarse Grained ◽  
Structure Dynamics ◽  
Dynamics Simulations ◽  
Fullerene Polymers ◽  
Coarse Grained Molecular Dynamics

Coarse-grained molecular dynamics simulations were employed to study the fullerene polymers with various functionalization degrees interacting with the DPPC membrane. Structure, dynamics, and thermodynamics of systems were analyzed.

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