Behavior of chiral active nematics confined to nanoscopic circular region

Autor:	L. V. Mirantsev
Rok vydání:	2021
Předmět:	Materials science Isotropy Biophysics Surfaces and Interfaces General Chemistry Molecular physics Topological defect Condensed Matter::Soft Condensed Matter Molecular dynamics Liquid crystal General Materials Science Soft matter Boundary value problem Anisotropy Nanoscopic scale Biotechnology
Zdroj:	The European Physical Journal E. 44
ISSN:	1292-895X 1292-8941
Popis:	We performed molecular dynamic simulations of a model active nematic confined to a two-dimensional nanoscopic circular region under both tangential and radial anchoring boundary conditions. This active material is assumed to be composed of elongated chiral particles which interact with each other by means of isotropic Lennard–Jones and anisotropic Maier–Saupe-like potentials. These particles have the lateral appendage emitting a jet of some substance generated by a certain internal chemical reaction. As a result, such elongated particles are exposed to both the reactive self-propelled force and the torque that provide an additional translational movement of particles and a self-rotation with respect to their geometric centers. It has been found that the chiral active nematics under consideration form time-dependent vortex-like structures with two +1/2 topological defects which are similar to experimentally observed structures in active materials
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::51cb30c78394d27057a72194fd2acf8c https://doi.org/10.1140/epje/s10189-021-00120-y Zobrazit plný text záznamu Full text from SpringerLink