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Dataset and Software for "On the critical Casimir interaction between anisotropic inclusions on a membrane" Open Access

Abstract from article: Using a lattice model and a versatile thermodynamic integration scheme, we study the critical Casimir interactions between inclusions embedded in a two-dimensional critical binary mixtures. For single-domain inclusions we demonstrate that the interactions are very long range, and their magnitudes strongly depend on the affinity of the inclusions with the species in the binary mixtures, ranging from repulsive when two inclusions have opposing affinities to attractive when they have the same affinities. When one of the inclusions has no preference for either of the species, we find negligible critical Casimir interactions. For multiple-domain inclusions, mimicking the observations that membrane proteins often have several domains with varying affinities to the surrounding lipid species, the presence of domains with opposing affinities does not cancel the interactions altogether. Instead we can observe both attractive and repulsive interactions depending on their relative orien- tations. With increasing number of domains per inclusion, the range and magnitude of the effective interactions decrease in a similar fashion to those of electrostatic multipoles. Finally, clusters formed by multiple-domain inclusions can result in an effective affinity patterning due to the anisotropic character of the Casimir interactions between the building blocks.

Descriptions

Resource type

Dataset

Contributors

Creator: Benet, Jorge ¹
Creator: Paillusson, Fabien ²
Creator: Kusumaatmaja, Halim ¹
Contact person: Kusumaatmaja, Halim ¹

¹ Durham University, UK
² University of Lincoln, UK

Funder

Engineering and Physical Sciences Research Council
EP/J017566/1

Research methods

Monte Carlo simulation.

Other description

Keyword

Subject

Monte Carlo method
Proteins
Soft condensed matter
Lipid Membranes

Location

Language

Cited in

arxiv:1706.00905v2

Identifier

ark:/32150/r26d56zw62r
doi:10.15128/r26d56zw62r

Rights

Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International (CC BY-NC-ND)

Publisher

Durham University

Date Created

File Details

Depositor

H. Kusumaatmaja

Date Uploaded

11 August 2017, 14:08:34

Date Modified

1 September 2017, 13:09:38

Audit Status

Audits have not yet been run on this file.

Characterization

File format: zip (ZIP Format)

Mime type: application/zip

File size: 128788

Last modified: 2017:09:01 13:03:47+01:00

Filename: PCCP.zip

Original checksum: 1ea208dd9a4e50cd977a7bd2fafb0972