Jump to main content
Jump to site search

Issue 38, 2016
Previous Article Next Article

When does near-wall hindered diffusion influence mass transport towards targets?

Author affiliations

Abstract

The diffusion of a particle is slowed as it moves close to a surface. We identify the conditions under which this hindered diffusion is significant and show that is strongly dependant on the sizes of both the particle and the target. We focus particularly on the transport of nano-particles to a variety of targets including a planar surface, a sphere, a disc and a wire, and provide data which allows the frequency of impacts to be inferred for a variety of experimental conditions. Equations are given to estimate the particle fluxes and we explain literature observations reported on the detected frequency of impacts. Finally we observe a drastic effect on the calculation of the mean first passage time of a single particle impacting a sub-micron sized target, showing the importance of this effect in biological systems.

Graphical abstract: When does near-wall hindered diffusion influence mass transport towards targets?

Back to tab navigation

Supplementary files

Article information


Submitted
17 Aug 2016
Accepted
08 Sep 2016
First published
08 Sep 2016

Phys. Chem. Chem. Phys., 2016,18, 26539-26549
Article type
Paper

When does near-wall hindered diffusion influence mass transport towards targets?

S. Eloul, E. Kätelhön and R. G. Compton, Phys. Chem. Chem. Phys., 2016, 18, 26539
DOI: 10.1039/C6CP05716K

Social activity

Search articles by author

Spotlight

Advertisements