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Synthesis and characterization of gold nanoparticles functionalized with calamitic mesogens

Cseh, Liliana; Mehl, Georg H.

Authors

Liliana Cseh

Georg H. Mehl



Abstract

(Image presented) Liquid-crystalline nanoparticles represent an exciting class of new materials for a variety of potential applications. By combining supramolecular ordering with the fluid properties of the liquid-crystalline state, these materials offer the possibility to organize nanoparticles into addressable 2-D and 3-D arrangements exhibiting high processability and self-healing properties. Here, we report the influence of temperature or/and ratio of reactants (C6H5-SH and HAuCl4) on the size of gold nanoparticles (NH). The synthesis of gold nanoparticles which are covered with thermotropic liquid crystals (4'-(undecyloxy)biphenyl-4-yl 4-(11-mercapto-undecyloxy)benzoate) (L) - rod like mesogen by ligand exchange reaction it is also presented. The nanoparticles are functionalized with two different thiol molecules: simple n-hexane thiol and rod like mesogen. Chemical structures and purity of nanoparticles were confirmed by 1H-NMR and elemental analysis. The size of spherical particles were establised by TEM. The hybrid gold nanoparticles (NHL) show mesophase behavior in a large temperature interval above 43°C and the nanocomposites are stable up to 145°C.

Citation

Cseh, L., & Mehl, G. H. (2016). Synthesis and characterization of gold nanoparticles functionalized with calamitic mesogens. 00 Journal not listed, 61(2), 125-130

Journal Article Type Article
Acceptance Date Dec 15, 2016
Publication Date 2016-02
Deposit Date Dec 8, 2020
Journal Revue Roumaine de Chimie
Peer Reviewed Peer Reviewed
Volume 61
Issue 2
Pages 125-130
Keywords Gold nanoparticles; Liquid crystals; Mesogen; Colloids
Public URL https://hull-repository.worktribe.com/output/3608496
Publisher URL http://revroum.lew.ro/wp-content/uploads/2016/02/Art%2008.pdf
Related Public URLs http://revroum.lew.ro/2016/02/no-2-fevrier-2016/