Extremely Stable Water-Soluble Ag Nanoparticles

• DOI: 10.1021/cm0508017
• Publication Date: 2005-08-30T04:31:21Z
• Authors: R. Christopher Doty; T. Robert Tshikhudo; Mathias Brust; David G. Fernig
• Keywords: 01 natural sciences; 0104 chemical sciences

A rationally designed peptide and a thioalkylated poly(ethylene glycol) are used to stabilize Ag nanoparticles in water. Particle aggregation and oxidation are prevented to such a degree that nanoparticle solutions are stable in the presence of high concentrations of NaCl and over a wide pH range. This opens the door for the use of Ag nanoparticles in biological applications.