Our news journalists obtained a quote from the research, "During Au-Ag alloy nanowire synthesis, the DNA acts as both as a reducing agent and as a non-specific capping agent for the metal nanoparticles. The Au-Ag alloy nanowires are important for the synthesis of composite nanowires for functional nanodevices, sensors, miniature computers or optoelectronics. In this article is presented the process of obtaining of DNA-gold nanoparticles, DNA-silver nanoparticles and DNA-Au-Ag nanoparticles which were prepared by chemical reduction of DNA- metal (Au and Ag) complex. The DNA-Au (III) was formed by reacting DNA with a 10(-2) M of HAuCl4 solution and the DNA-Ag was formed by reacting DNA with a 10-2 M of an AgNO3 solution. The complex in solution reacted with EDTA reducing Au (III) and Ag (
According to the news editors, the research concluded: "This method, of metallic nanoparticles incorporated and stabilized by DNA, has resulted in a rather uniform dispersion of Ag, Au, Ag-Au nanoparticles of spherical shape and 2 similar to 50 nm in diameter."
For more information on this research see: Photo-induced formation of Au-Ag nanowires complex on DNA support.
The news correspondents report that additional information may be obtained from I.R. Bunghez,
Keywords for this news article include:
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