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Researchers from Guangxi Normal University Report Recent Findings in Gold Nanoparticles (Resonance light scattering determination of trace bisphenol...

August 22, 2014



Researchers from Guangxi Normal University Report Recent Findings in Gold Nanoparticles (Resonance light scattering determination of trace bisphenol A with signal amplification by aptamer-nanogold catalysis)

By a News Reporter-Staff News Editor at Science Letter -- New research on Gold Nanoparticles is the subject of a report. According to news reporting from Guilin, People's Republic of China, by NewsRx journalists, research stated, "HAuCl4 was reduced by sodium citrate to prepare 10 nm gold nanoparticles (AuNPs) that were modified by the bisphenol A aptamer (Apt) to obtain an aptamer-nanogold probe (Apt-AuNP) for bisphenol A (BPA). The probes were aggregated nonspecifically to form large clusters, which showed a strong resonance light scattering (RLS) peak at 520 nm, under preparation conditions (pH 7.6 Na2HPO4-NaH2PO4 buffer and ultrasonication)."

The news correspondents obtained a quote from the research from Guangxi Normal University, "Upon addition of BPA, the probe reacted specifically to form dispersed BPA-Apt-AuNP conjugates that exhibited strong catalysis of the two particle reactions of glucose-Cu(II) and hydrazine hydrochloride-Cu(II) with a strong RLS peak at 360 nm and 510 nm respectively. When the BPA concentration increased, the RLS intensity at 360 nm and 510 nm increased respectively."

According to the news reporters, the research concluded: "Accordingly, two new and highly-sensitive RLS methods were established for the detection of BPA, using the Apt-AuNP catalytic amplification."

For more information on this research see: Resonance light scattering determination of trace bisphenol A with signal amplification by aptamer-nanogold catalysis. Luminescence, 2014;29(5):516-521. Luminescence can be contacted at: Wiley-Blackwell, 111 River St, Hoboken 07030-5774, NJ, USA. (Wiley-Blackwell - www.wiley.com/; Luminescence - onlinelibrary.wiley.com/journal/10.1002/(ISSN)1522-7243)

Our news journalists report that additional information may be obtained by contacting D.M. Yao, Guangxi Normal Univ, Key Lab Ecol Rare & Endangered Species & Environm, Minist Educ, Guilin 541004, People's Republic of China. Additional authors for this research include A.H. Liang, W.Q. Yin and Z.L. Jiang (see also Gold Nanoparticles).

Keywords for this news article include: Asia, Guilin, Nanogold, Nanotechnology, Gold Nanoparticles, Emerging Technologies, People's Republic of China

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


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Source: Science Letter


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