Hydrodynamic interactions induce movement against an external load in a ratchet dimer Brownian motor.
We use the Brownian dynamics with hydrodynamic interactions simulation in order to describe the movement of a elastically coupled dimer Brownian motor in a ratchet potential. The only external forces considered in our system were the load, the random thermal noise and an unbiased thermal fluctuation. For a given set of parameters we observe direct movement against the load force if hydrodynamic interactions were considered.
Fornés
José A
JA
Instituto de Física, Universidade Federal de Goiás, C.P. 131, 74001-970 Goiánia, GO, Brazil. fornes@if.ufg.br