title: Thioalkylated tetraethylene glycol: a new ligand for water soluble monolayer protected gold clusters.
abstract: 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.
authors.affiliation: Centre for Nanoscale Science, Department of Chemistry, University of Liverpool, Liverpool, UK L69 7ZD.
authors.forename: Antonios G
authors.initials: AG
authors.lastname: Kanaras
authors.forename: Fadhil S
authors.initials: FS
authors.lastname: Kamounah
authors.forename: Kjeld
authors.initials: K
authors.lastname: Schaumburg
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Kiely
authors.forename: Mathias
authors.initials: M
authors.lastname: Brust
mesh_terms: 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
chemical_list: D006018:Glycols; D017979:Gold Colloid; D008024:Ligands; D015335:Molecular Probes; D014867:Water