News Column

Study Findings from National Institute for Materials Science Broaden Understanding of DNA Research

May 27, 2014

By a News Reporter-Staff News Editor at Life Science Weekly -- Current study results on DNA Research have been published. According to news reporting out of Ibaraki, Japan, by NewsRx editors, research stated, "The enhanced optical response due to localized surface plasmons (LSPs) in interacting metallic nanostructures provides a promising avenue for the detecting small biological molecules, whereas an unconventional spectral modulation of LSPs would be obtained under the coupling of the different kinds of metallic nanostructures with nanoscale separations via small molecules."

Our news journalists obtained a quote from the research from National Institute for Materials Science, "Here, we unexpectedly found an anomalous condition of light scattering from heterogeneous metallic nanostructures, i.e., silver-nanoparticle fixed bead (AgNP-FB) and gold nanorods (AuNRs) coupled via DNA, in which the light scattering dramatically suppressed in the broad UV region although it was enhanced in the visible region. Based on ultrafast computation under cluster approximation, this anomaly was attributed to the broadband cancellation of collective modes of interband transitions in AuNRs and LSPs in a single AgNP-FB."

According to the news editors, the research concluded: "This mechanism has a high potential to apply for detection of DNA in zmol order even under white light source."

For more information on this research see: DNA-Mediated Anomalous Optical Coupling of Heterogeneous Metallic Nanostructures. Journal of Physical Chemistry C, 2014;118(13):7235-7241. Journal of Physical Chemistry C can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society -; Journal of Physical Chemistry C -

Our news journalists report that additional information may be obtained by contacting S. Tokonami, Natl Inst Mat Sci, Nanoarchitecture Grp, Tsukuba, Ibaraki 3050044, Japan. Additional authors for this research include K. Nishida, S. Hidaka, Y. Yamamoto, H. Nakao and T. Iida (see also DNA Research).

Keywords for this news article include: Asia, Japan, Ibaraki, DNA Research, Nanostructural, Nanostructures, Nanotechnology, Emerging Technologies

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC

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Source: Life Science Weekly

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