Controlled nanoparticle targeting and nanoparticle-driven nematic structural transitionDubtsov, Alexander (Avtor) Pasechnik, Sergey V. (Avtor) Shmeliova, Dina V. (Avtor) Kralj, Samo (Avtor) Repnik, Robert (Avtor) liquid crystalsnanoparticlesstructural transitionsWe study experimentally and theoretically controlled targeting of specific nanoparticles (NPs) to different regions within nematic liquid crystal. Using a simple mesoscopic Landau-de Gennes-type model in terms of a tensor nematic order parameter, we demonstrate a general mechanism which could be exploited for controlled targeting of NPs within a spatially nonhomogeneous nematic texture. Furthermore, we experimentally demonstrate using polarising microscopy that even a relatively low concentration of localised appropriate NPs could trigger a nematic structural transition. A simple estimate is derived to account for the observed transition.20152016-06-09 03:16:09Članek v reviji60191ISSN: 1687-8108UDK: 532.783OceCobissID: 23812647COBISS_ID: 21848584DOI: 10.1155/2015/803480ISSN pri članku: 1687-8108NUK URN: URN:SI:UM:DK:3XGCF3SEsl