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Using molecular dynamics simulations, we show that an asymmetrically shaped nanoparticle in dilute solution possesses a spontaneously curved trajectory within finite time interval, instead of the generally expected random walk. This unexpected dynami
Externí odkaz:
http://arxiv.org/abs/1508.07676
In nanoscale space and pico- to nanoseconds enormous physical, chemical and biological processes take place, while the motions of involved particles/molecules under thermal fluctuations are usually analyzed using the conventional theory of diffusive
Externí odkaz:
http://arxiv.org/abs/1503.05867
Publikováno v:
Sci. China Phys. Mech. Astron. 56, 1047(2013)
Using molecular dynamics simulations, we show that free diffusion of a nanoscale particle (molecule) with asymmetric structure critically depends on the orientation in a finite timescale of picoseconds to nanoseconds. In a timescale of ~100 ps, there
Externí odkaz:
http://arxiv.org/abs/1307.6963
Using a simple theoretical model of a nanoscale asymmetric particle/molecule with asymmetric structure or/and asymmetric charge distribution, here using a charge dipole as an example, we show that there is unidirectional transportation mediated by no
Externí odkaz:
http://arxiv.org/abs/1307.6096
Autor:
Fang, Haiping, Wan, Rongzheng
The existence of net flux across the nanochannels under the asymmetrical static electric fields obtained at room temperature from molecular dynamics (MD) simulations [Nat. Nanotechnol. 2, 709 (2007); Phys. Rev. Lett. 101, 064502 (2008)] has been exte
Externí odkaz:
http://arxiv.org/abs/1207.3484
The evaporation of a tiny amount of water on the solid surface with different wettability has been studied by molecular dynamics simulations. We found that, as the surface changed from hydrophobicity to hydrophility, the evaporation speed did not sho
Externí odkaz:
http://arxiv.org/abs/1203.1697
Publikováno v:
Science China, Physics, Mechanics & Astronomy, May 2012 Vol.55 No.5: 751-756
Based on a simple model, we theoretically show that asymmetric transportation is possible in nanoscale systems experiencing thermal noise without the presence of external fluctuations. The key to this theoretical advance is that the correlation lengt
Externí odkaz:
http://arxiv.org/abs/1111.3131
Water molecules, confined in a carbon nanotube, were monitored using molecular dynamics simulation. Spontaneous directional transportation during a long timescale was observed in the symmetrical nanochannel by a ratchet-like mechanism. This ratchet-l
Externí odkaz:
http://arxiv.org/abs/physics/0607289
Akademický článek
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