Controlled nanoparticle targeting and nanoparticle-driven nematic structural transition

Alexander Dubtsov (Author), Sergey V. Pasechnik (Author), Dina V. Shmeliova (Author), Samo Kralj (Author), Robert Repnik (Author)

Abstract

We 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.

Keywords

tekoči kristali;nanodelci;strukturni prehodi;liquid crystals;nanoparticles;structural transitions;

Data

Language:	English
Year of publishing:	2015
Typology:	1.01 - Original Scientific Article
Organization:	UM FNM - Faculty of Natural Sciences and Mathematics
UDC:	532.783
COBISS:	21848584
ISSN:	1687-8108
Views:	1657
Downloads:	358
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	Slovenian
Secondary keywords:	tekoči kristali;nanodelci;strukturni prehodi;
URN:	URN:SI:UM:
Type (COBISS):	Article
Pages:	str. 1-9
Volume:	ǂVol. ǂ2015
Issue:	ǂart. ID ǂ803480
Chronology:	2015
DOI:	10.1155/2015/803480
ID:	9142756