20.500.12556/RUL-128501 Active nematic emulsions The formation of emulsions from multiple immiscible fluids is governed by classical concepts such as surface tension, differential chemical affinity and viscosity, and the action of surface-active agents. Much less is known about emulsification when one of the components is active and thus inherently not constrained by the laws of thermodynamic equilibrium. We demonstrate one such realization consisting in the encapsulation of an active liquid crystal (LC)–like gel, based on microtubules and kinesin molecular motors, into a thermotropic LC. These active nematic emulsions exhibit a variety of dynamic behaviors that arise from the cross-talk between topological defects separately residing in the active and passive components. Using numerical simulations, we show a feedback mechanism by which active flows continuously drive the passive defects that, in response, resolve the otherwise degenerated trajectories of the active defects. Our experiments show that the choice of surfactant, which stabilizes the active/passive interface, allows tuning the regularity of the self-sustained dynamic events. The hybrid active-passive system demonstrated here provides new perspectives for dynamic self-assembly driven by an active material but regulated by the equilibrium properties of the passive component. liquid crystals nematic emulsions tekoči kristali nematske emulzije true false true Angleški jezik Slovenski jezik Članek v reviji 2021-07-15 14:32:36 2021-07-15 14:32:36 2022-09-07 04:15:34 0000-00-00 00:00:00 2018 0 0 10 str. no. 4, art. eaao1470 Vol. 4 Apr. 2018 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 538.9 2375-2548 10.1126/sciadv.aao1470 3197796 RAZ_Guillamat_Pau_2018.pdf RAZ_Guillamat_Pau_2018.pdf 1 6EC13B4E03482EF47ADED97AF4CC6A24 034368922c2e2ba2a17976c2706214ca2793a82e7defe3e42e99729e076b0169 ed36613e-e568-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=145256 https://advances.sciencemag.org/content/4/4/eaao1470 0 b49d82b8-e568-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=145255 Fakulteta za matematiko in fiziko 0 0 0