Premium
Liquid‐Crystalline Thiol‐ and Disulfide‐Based Dendrimers for the Functionalization of Gold Nanoparticles. Preliminary Communication
Author(s) -
Frein Stéphane,
Boudon Julien,
Vonlanthen Mireille,
Scharf Toralf,
Barberá Joaquín,
SüssFink Georg,
Bürgi Thomas,
Deschenaux Robert
Publication year - 2008
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.200890253
Subject(s) - mesogen , dendrimer , liquid crystal , chemistry , colloidal gold , supramolecular chemistry , nanoparticle , thiol , surface modification , aryl , nanotechnology , disulfide bond , self assembly , polymer chemistry , combinatorial chemistry , organic chemistry , liquid crystalline , alkyl , molecule , materials science , polymer , biochemistry , optoelectronics
Liquid‐crystalline dendrons carrying either a thiol or disulfide function which display nematic, smectic A, columnar, or chiral nematic phases have been synthesized. Their mesomorphic properties are in agreement with the nature of the mesogenic units and structure of the dendrons. The first‐generation poly(aryl ester) dendron containing two cyanobiphenyl mesogenic units was used to functionalize gold nanoparticles. For full coverage, a smectic‐like supramolecular organization on the nanometer scale is observed, when the gold nanoparticles are spread onto carbon‐coated copper grids. This result indicates that the dendritic ligands reported here act as self‐organization promoters.