ArticleThe European physical journal. E, Soft matter2019
Thermal orientation and thermophoresis of anisotropic colloids: The role of the internal composition.
Article in The European physical journal. E, Soft matter, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Perspective: Thermophoresis and Its Promise for Optical Patterning.Langmuir : the ACS journal of surfaces and colloids · 2025Review
- Thermotaxis of Janus particles.The European physical journal. E, Soft matter · 2021Article
- Numerical Analysis of Thermophoresis of a Charged Spheroidal Colloid in Aqueous Media.Micromachines · 2021Article
- Topical Issue on Thermal Non-Equilibrium Phenomena in Soft Matter.The European physical journal. E, Soft matter · 2019Article
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3 authors.
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Abstract
The drift motion experienced by colloids immersed in a fluid with an intrinsic temperature gradient is referred to as thermophoresis. An anisotropic mass distribution inside colloidal particles imparts a net orientation with respect to the applied thermal field, and in turn alters the thermophoretic response of the colloids. This rectification of the rotational Brownian motion is called thermal orientation. To explore the sensitivity of the thermal orientation effect with the internal composition of colloids, we investigate the thermophoretic response of rod-like colloids in the dilute regime, targeting different internal mass distributions. We derive phenomenological equations to model the dependence of the Soret coefficient with degree of mass anisotropy and test these equations using non-equilibrium molecular dynamics simulations. Using both theory and simulation, we show that the average orientation and the Soret coefficients of the colloids can depend significantly on the internal mass distribution. This observation suggests an approach to identify internal colloidal compositions using thermal gradients as sensing probes.
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