Spontaneous division and motility in active nematic droplets

Autor:	Giomi, L., DeSimone, A.
Rok vydání:	2013
Předmět:	Condensed Matter - Soft Condensed Matter Physics - Biological Physics
Zdroj:	Phys. Rev. Lett. 112, 147802 (2014)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.112.147802
Popis:	We investigate the mechanics of an active droplet endowed with internal nematic order and surrounded by an isotropic Newtonian fluid. Using numerical simulations we demonstrate that, due to the interplay between the active stresses and the defective geometry of the nematic director, this system exhibits two of the fundamental functions of living cells: spontaneous division and motility, by means of self-generated hydrodynamics flows. These behaviors can be selectively activated by controlling a single physical parameter, namely, an active variant of the capillary number. Comment: 5 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1310.1908 Zobrazit plný text záznamu View this record from Arxiv