Thermophoresis of colloids by mesoscale simulations.
The motion of a colloid induced by a temperature gradient is simulated by means of multiparticle collision dynamics, a mesoscale simulation technique. Two algorithms to quantify the thermophoretic behavior are employed and contrasted. The validity of the methods is verified as a function of the temperature gradient, system size, and algorithm parameters. The variation of the solvent-colloid interaction from attractive to purely repulsive interestingly results in the change of the colloid behavior from thermophobic to thermophilic.
Theoretical Soft-Matter and Biophysics, Institute of Complex Systems, Forschungszentrum Jülich, 52425 Jülich, Germany.
Daniel
D
Lüsebrink
Mingcheng
M
Yang
Marisol
M
Ripoll
D003102:Colloids / Q000737:chemistry*; D004058:Diffusion; D057446:Hydrodynamics; D008958:Models, Molecular; D009038:Motion; D012997:Solvents / Q000737:chemistry; D013696:Temperature
D003102:Colloids; D012997:Solvents