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Autonomous pump against concentration gradient.


ABSTRACT: Using non-equilibrium molecular dynamics and Monte Carlo methods, we have studied the molecular transport in asymmetric nanochannels. The efficiency of the molecular pump depends on the angle and apertures of the asymmetric channel, the environmental temperature and average concentration of the particles. The pumping effect can be explained as the competition between the molecular force field and the thermal disturbance. Our results provide a green approach for pumping fluid particles against the concentration gradient through asymmetric nanoscale thin films without any external forces. It indicates that pumping vacuum can be a spontaneous process.

SUBMITTER: Xu ZC 

PROVIDER: S-EPMC4800498 | biostudies-other | 2016

REPOSITORIES: biostudies-other

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