Preparation and study of concentrated hydrosols of copper nanoparticles using of weak reducing agents.

We propose a facile and environmentally friendly method to prepare concentrated copper nanoparticles dispersion via reduction of aqueous copper(II) sulfate solution with ascorbic acid or glucose in the presence of gelatin as stabilizer. The so synthesized hydrosols have been examined using a set of physicochemical methods (ex situ and in situ) in order to determine the nanoparticles features. [ABSTRACT FROM AUTHOR]