scholarly journals Bridging the gap between molecular dynamics and hydrodynamics in nanoscale Brownian motions

Soft Matter ◽  
2019 ◽  
Vol 15 (21) ◽  
pp. 4380-4390 ◽  
Author(s):  
Keisuke Mizuta ◽  
Yoshiki Ishii ◽  
Kang Kim ◽  
Nobuyuki Matubayasi

Through molecular dynamics simulations, we examined the hydrodynamic behavior of the Brownian motion of fullerene particles based on molecular interactions.

2008 ◽  
Vol 8 (7) ◽  
pp. 3710-3718 ◽  
Author(s):  
Kuo-Liang Teng ◽  
Pai-Yi Hsiao ◽  
Shih-Wei Hung ◽  
Ching-Chang Chieng ◽  
Ming-Shen Liu ◽  
...  

Molecular Dynamics simulations are performed to calculate the thermal conductivity of nanofluids, and to understand the fundamental physics of the enhancement of thermal conductivity observed in experiments. Based on the analysis, intermolecular interactions between copper–copper atoms, layer structure surrounding nanoparticles, convection effect induced by the Brownian motion of copper atoms, as well as particle–particle interactions are identified and confirmed on the enhancement using Green-Kubo method in thermal conductivity.


Author(s):  
J. Gou ◽  
K. Anumakonda

The discovery of vapor grown carbon nanofibers has created a significant opportunity to develop high performance and cost-effective nanocomposite materials. However, significant challenges in the development of such composite materials lie in the poor dispersion of carbon nanofibers into polymer resins and the weak interfacial bonding between carbon nanofibers and polymer resins. These critical issues have to be addressed by chemical functionalization of carbon nanofibers. Understanding molecular interactions between functionalized carbon nanofibers and polymer resins is a crucial step towards their potential use in nanocomposites. In this work, the effects of surface functional groups on the molecular interactions between carbon nanofibers and polymer resins have been studied by using molecular dynamics simulations. It was found that chemical functionalization of vapor grown carbon nanofibers increased the amount of surface functional groups which disturbed the original smooth graphitic planes of carbon nanofibers. The functionalization of vapor grown carbon nanofibers decreased the amount of π-bonds on the nanofiber surface, which resulted in the weaker interaction with polymer resins. The simulation results provided fundamental information for the rational functionalization of vapor grown carbon nanofibers to manipulate their nanoscale properties in a predicative manner.


2019 ◽  
Vol 21 (43) ◽  
pp. 23843-23854 ◽  
Author(s):  
Anastassia N. Rissanou ◽  
Petra Bačová ◽  
Vagelis Harmandaris

The dynamical behavior of nanographene sheets dispersed in polymer matrices is investigated through united-atom molecular dynamics simulations.


2015 ◽  
Vol 34 (1) ◽  
pp. 78-91 ◽  
Author(s):  
Martin González-Andrade ◽  
Rogelio Rodríguez-Sotres ◽  
Abraham Madariaga-Mazón ◽  
José Rivera-Chávez ◽  
Rachel Mata ◽  
...  

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