Issue 34, 2013

Intrinsic curvature determines the crinkled edges of “crenellated disks”

Abstract

Elastic curvature constants determine many structural and functional properties of fluid membranes. Methods to measure the mean curvature modulus have proved to be robust. In contrast, Gaussian curvature is an intrinsic property of a surface. Thus, measuring the relevant modulus [k with combining macron] in fluid membranes remains a challenging task. Inspired from colloidal “crenellated disks” observed in a model system composed of hard rods, we propose a concise relation between the two curvature moduli and the parameters associated with the free, crinkled edges. Our approach offers a straightforward way to determine [k with combining macron] of these reconfigurable membranes, where various complex topologies can be nanosculpted. Further, we reveal the structure and stability of the “crenellated disks.”

Graphical abstract: Intrinsic curvature determines the crinkled edges of “crenellated disks”

Supplementary files

Article information

Article type
Paper
Submitted
15 Feb 2013
Accepted
25 Mar 2013
First published
10 Apr 2013

Soft Matter, 2013,9, 8210-8215

Intrinsic curvature determines the crinkled edges of “crenellated disks”

C. N. Kaplan, T. Gibaud and R. B. Meyer, Soft Matter, 2013, 9, 8210 DOI: 10.1039/C3SM50488C

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