Details

Autor(en) / Beteiligte

• Tao, Yu-Guo
• Kapral, Raymond

Titel

Dynamics of chemically powered nanodimer motors subject to an external force

Ist Teil von

• The Journal of chemical physics, 2009-07, Vol.131 (2), p.024113-024113

Ort / Verlag

United States

Erscheinungsjahr

2009

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The chemically powered self-propelled directed motions of nanodimer motors confined in a rectangular channel and subject to an applied external conservative force are investigated using hybrid molecular dynamics/multiparticle collision dynamics. The influence of factors, such as dimer sizes, chemical reaction type, and the nature of the interaction potentials between dimer monomers and solvent molecules, on the propulsion force and friction constant are examined. The stall force, for which the nanodimer has zero net velocity, and the thermodynamic efficiency of the motor are calculated. Both irreversible and reversible chemical reactions are considered. The simulation results are compared to theoretical predictions which are able to capture the major features of the self-propelled motion.