Synthesis of silver nanoparticles with monovalently functionalized self-assembled monolayers

P. Free, D. Paramelle, M. Bosman, J. Hobley, D. G. Fernig

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


The importance of having nanoparticles that are soluble, stable, and that have no non-specific binding is often overlooked, but essential for their use in biology. This is particularly prominent with silver nanoparticles that are susceptible to the effects of aggregation and metal-surface reactivity. Here we use a combination of several small peptidols and short alkanethiol ethylene glycol ligands to develop a ligand shell that is reasonably resistant to ligand exchange and non-specific binding to groups common in biological molecules. The stability of the nanoparticles is not affected by the inclusion of a functional ligand, which is done in the same preparative step. The stoichiometry of the nanoparticles is controlled, such that monofunctional silver nanoparticles can be obtained. Two different sets of nanoparticles, functionalized with either Tris-nitrilotriacetic acid or a hexa-histidine peptide sequence, readily form dimers/oligomers, depending on their stoichiometry of functionalization.

Original languageEnglish
Pages (from-to)275-282
Number of pages8
JournalAustralian Journal of Chemistry
Issue number3
Publication statusPublished - 2012

All Science Journal Classification (ASJC) codes

  • General Chemistry


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