Comment on “Brownian diffusion of a particle at an air/liquid interface: elastic (not viscous) response of the surface”

Boniello, Giuseppe; Stocco, Antonio; Blanc, Christophe; Nobili, Maurizio

doi:10.1039/c7cp02970e

Cited by 3 publications

(1 citation statement)

References 10 publications

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“…Indeed, diffusion in bulk gases is faster than diffusion in liquids, despite fewer molecular collisions (or because of them, since they are responsible of viscous drag). Elastic confinement parallel at the interface, besides the fact that is not experimentally observed in any work, violates the translational invariance of the interface on its plane [73]. Hydrodynamics resistance associated to curved menisci offers just a partial contribution to enhanced viscous drag.…”

Section: The Unexpected Key Importance Of Capillary Effects On Particmentioning

confidence: 79%

Motion of micro- and nano- particles interacting with a fluid interface

Villa

Boniello

Stocco

et al. 2020

Advances in Colloid and Interface Science

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In this article, we review both theoretical models and experimental results on the motion of micro-and nanoparticles that are close to a fluid interface or move in between two fluids. Viscous drags together with dissipations due to fluctuations of the fluid interface and its physicochemical properties affect strongly the translational and rotational drags of colloidal particles, which are subjected to Brownian motion in thermal equilibrium. Even if many theoretical and experimental investigations have been carried out, additional scientific efforts in hydrodynamics, statistical physics, wetting and colloid science are still needed to explain unexpected experimental results and to measure particle motion in time and space scales, which are not accessible so far.

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Section: The Unexpected Key Importance Of Capillary Effects On Particmentioning

confidence: 79%