Transport of neutral and charged nanorods across varying-section channels

Malgaretti P, Harting J (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Soft Matter Royal Society of Chemistry

Book Volume: 17

Pages Range: 2062-2070

Journal Issue: 8

DOI: 10.1039/d0sm02045a

Abstract

We study the dynamics of neutral and charged rods embedded in varying-section channels. By means of systematic approximations, we derive the dependence of the local diffusion coefficient on both the geometry and charge of the rods. This microscopic insight allows us to provide predictions for the permeability of varying-section channels to rods with diverse lengths, aspect ratios and charge. Our analysis shows that the dynamics of charged rods is sensitive to the geometry of the channel and that their transport can be controlled by tuning both the shape of the confining walls and the charge of the rod. Interestingly, we find that the channel permeability does not depend monotonically on the charge of the rod. This opens the possibility of a novel mechanism to separate charged rods.

Authors with CRIS profile

Jens Harting Professur für Multiskalen-Modellierung für kontrollierte Filmbildung (HIERN)

Related research project(s)

Modelling transport of nanoparticles (SFB 1411 - D02) Design of particulate products (SFB 1411) Jan. 1, 2020 - Dec. 31, 2023

Involved external institutions

Max Planck Institute for Intelligent Systems (MPI-IS) / Max-Planck-Institut für Intelligente Systeme DE Germany (DE)

How to cite

APA:

Malgaretti, P., & Harting, J. (2021). Transport of neutral and charged nanorods across varying-section channels. Soft Matter, 17(8), 2062-2070. https://dx.doi.org/10.1039/d0sm02045a

MLA:

Malgaretti, Paolo, and Jens Harting. "Transport of neutral and charged nanorods across varying-section channels." Soft Matter 17.8 (2021): 2062-2070.

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