By a News Reporter-Staff News Editor at Journal of Technology -- Data detailed on Raman Spectroscopy have been presented. According to news reporting out of Beijing, People's Republic of China, by VerticalNews editors, research stated, "There has been a surge of interest in the surface-enhanced Raman scattering (SERS) of p-aminothiophenol (PATP), since its SERS spectra are dependent on the measurement conditions. However, there is a dispute over the origin of the so-called b(2) modes in SERS spectrum of PATP recently."
Our news journalists obtained a quote from the research from Beihang University, "Some researchers propose that these bands come from selective chemical enhancement, while others conclude that these bands are due to the a(g) modes of p,p'-dimercaptoazobenzene (DMAB) produced from PATP by surface photoreaction. To solve this problem, we have studied the SERS spectra of PATP on Au and Ag nanoparticles by in situ measurement under various conditions. The results proved that the b(2) modes are not due to PATP but due to the a(g) modes of DMAB. The key of the method is to ensure the SERS spectra taken from the same point in reduplicative measurements. The result showed that the stable SERS spectrum of PATP was essentially from DMAB."
According to the news editors, the research concluded: "The reversibility of the PATP SERS spectra in previous studies is due to the variety of the measurement points, which is in nature of different PATP conversions to DMAB under different conditions."
For more information on this research see: Direct evidence for conversion of p-aminothiophenol to p,p '-dimercaptoazobenzene by in situ reduplicative surface-enhanced Raman scattering measurements. Journal of Raman Spectroscopy, 2013;44(8):1200-1203. Journal of Raman Spectroscopy can be contacted at: Wiley-Blackwell, 111 River St, Hoboken 07030-5774, NJ, USA. (Wiley-Blackwell - www.wiley.com/; Journal of Raman Spectroscopy - onlinelibrary.wiley.com/journal/10.1002/(ISSN)1097-4555)
Our news journalists report that additional information may be obtained by contacting E.Z. Tan, Beihang Univ, Sch Chem & Environm, Minist Educ, Key Lab Bioinspired Smart Interfacial Sci & Techn, Beijing 100191, People's Republic of China. Additional authors for this research include P.G. Yin, T.T. You and L. Guo.
Keywords for this news article include: Asia, Beijing, Raman Spectroscopy, People's Republic of China
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