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. 2016 Nov;39(11):114.
doi: 10.1140/epje/i2016-16114-6. Epub 2016 Nov 29.

Squeezed helical elastica

Lila Bouzar  1   2 , Martin Michael Müller  3   4 , Pierre Gosselin  5 , Igor M Kulić  6 , Hervé Mohrbach  7   6
Affiliations

Squeezed helical elastica

Lila Bouzar et al. Eur Phys J E Soft Matter. 2016 Nov.

Abstract

We theoretically study the conformations of a helical semi-flexible filament confined to a flat surface. This squeezed helix exhibits a variety of unexpected shapes resembling circles, waves or spirals depending on the material parameters. We explore the conformation space in detail and show that the shapes can be understood as the mutual elastic interaction of conformational quasi-particles. Our theoretical results are potentially useful to determine the material parameters of such helical filaments in an experimental setting.

Keywords: Living systems: Biological Matter.

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