By a News Reporter-Staff News Editor at Life Science Weekly -- Current study results on DNA Research have been published. According to news originating from Berlin, Germany, by NewsRx correspondents, research stated, "DNA nanotechnology holds great promise for the fabrication of novel plasmonic nanostructures and the potential to carry out single-molecule measurements using optical spectroscopy. Here, we demonstrate for the first time that DNA origami nanostructures can be exploited as substrates for surface-enhanced Raman scattering (SERS)."
Our news journalists obtained a quote from the research from Federal Institute for Materials Research and Testing, "Gold nanoparticles (AuNPs) have been arranged into dimers to create intense Raman scattering hot spots in the interparticle gaps. AuNPs (15 nm) covered with TAMRA-modified DNA have been placed at a nominal distance of 25 nm to demonstrate the formation of Raman hot spots. To control the plasmonic coupling between the nanoparticles and thus the field enhancement in the hot spot, the size of AuNPs has been varied from 5 to 28 nm by electroless Au deposition."
According to the news editors, the research concluded: "By the precise positioning of a specific number of TAMRA molecules in these hot spots, SERS with the highest sensitivity down to the few-molecule level is obtained."
For more information on this research see: DNA Origami Substrates for Highly Sensitive Surface-Enhanced Raman Scattering. Journal of Physical Chemistry Letters, 2013;4(23):4140-4145. Journal of Physical Chemistry Letters can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; Journal of Physical Chemistry Letters - www.pubs.acs.org/journal/jpclcd)
The news correspondents report that additional information may be obtained from J. Prinz, BAM Fed Inst Mat Res & Testing, Berlin, Germany. Additional authors for this research include B. Schreiber, L. Olejko, J. Oertel, J. Rackwitz, A. Keller and I. Bald (see also DNA Research).
Keywords for this news article include: Berlin, Europe, Germany, DNA Research, Nanoparticle, Nanostructural, Nanostructures, Nanotechnology, Emerging Technologies
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