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Literature DB >> 22538506

A rotary nano ion pump: a molecular dynamics study.

Abstract

The dynamics of a rotary nano ion pump, inspired by the F (0) part of the F(0)F(1)-ATP synthase biomolecular motor, were investigated. This nanopump is composed of a rotor, which is constructed of two carbon nanotubes with benzene rings, and a stator, which is made of six graphene sheets. The molecular dynamics (MD) method was used to simulate the dynamics of the ion nanopump. When the rotor of the nanopump rotates mechanically, an ion gradient will be generated between the two sides of the nanopump. It is shown that the ion gradient generated by the nanopump is dependant on parameters such as the rotary frequency of the rotor, temperature and the amounts and locations of the positive and negative charges of the stator part of the nanopump. Also, an electrical potential difference is generated between the two sides of the pump as a result of its operation.

Entities: Chemical

Mesh：

Substances：
Ion Pumps

Year: 2012 PMID： 22538506 DOI： 10.1007/s00894-012-1403-6

Source DB: PubMed Journal: J Mol Model ISSN： 0948-5023 Impact factor: 1.810

14 in total

1. A mechano-chemiosmotic model for the coupling of electron and proton transfer to ATP synthesis in energy-transforming membranes: a personal perspective.

Authors: Eldar A Kasumov; Ruslan E Kasumov; Irina V Kasumova
Journal: Photosynth Res Date: 2014-09-30 Impact factor: 3.573

1 in total

A rotary nano ion pump: a molecular dynamics study.

1. Model channel ion currents in NaCl-extended simple point charge water solution with applied-field molecular dynamics.

2. Insights into the molecular mechanism of rotation in the Fo sector of ATP synthase.

3. Torque generation by the Fo motor of the sodium ATPase.

4. Intracellular hypertonicity is responsible for water flux associated with Na+/glucose cotransport.

5. Chemically tunable nanoscale propellers of liquids.

6. Subnanometer motion of cargoes driven by thermal gradients along carbon nanotubes.

7. Nanoscale rotary motors driven by electron tunneling.

8. Computational modeling of an ion-driven nanomotor.

9. Empirical potential for hydrocarbons for use in simulating the chemical vapor deposition of diamond films.

10. Water transport inside a single-walled carbon nanotube driven by a temperature gradient.

1. A mechano-chemiosmotic model for the coupling of electron and proton transfer to ATP synthesis in energy-transforming membranes: a personal perspective.