Thioalkylated tetraethylene glycol: a new ligand for water soluble monolayer protected gold clusters.
Ligand-stabilised, water-soluble gold nanoparticles of two different size ranges (2-4 and 5-8 nm) are readily prepared using monohydroxy (1-mercaptoundec-11-yl) tetraethylene glycol as a novel capping agent. These nanoparticles are as stable as alkylthiol-capped monolayer protected clusters (MPCs) and do not aggregate from aqueous solution under a wide range of stringent conditions. It is expected that this new material will be useful for a number of bio-analytical applications.
Kanaras
Antonios G
AG
Centre for Nanoscale Science, Department of Chemistry, University of Liverpool, Liverpool, UK L69 7ZD.
Kamounah
Fadhil S
FS
Schaumburg
Kjeld
K
Kiely
Christopher J
CJ
Brust
Mathias
M
D006018:Glycols / Q000737:chemistry; D017979:Gold Colloid / Q000138:chemical synthesis*; D008024:Ligands; D015335:Molecular Probes / Q000138:chemical synthesis / Q000737:chemistry; D036103:Nanotechnology; D012995:Solubility; D014867:Water
D006018:Glycols; D017979:Gold Colloid; D008024:Ligands; D015335:Molecular Probes; D014867:Water