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Findings from Shanxi University Broaden Understanding of Oligopeptides (Glutathione capped silver nanoclusters-based fluorescent probe for highly...

September 9, 2014



Findings from Shanxi University Broaden Understanding of Oligopeptides (Glutathione capped silver nanoclusters-based fluorescent probe for highly sensitive detection of Fe3+)

By a News Reporter-Staff News Editor at Life Science Weekly -- New research on Peptides is the subject of a report. According to news reporting from Taiyuan, People's Republic of China, by NewsRx journalists, research stated, "Glutathione capped silver nanoclusters ( GSH@Ag NCs) were prepared by facile sonachemical method in aqueous solution. A new GSH@Ag NCs fluorescent probe for the detection of Fe3+ has been designed based on the significant fluorescence quenching of GSH@Ag NCs."

The news correspondents obtained a quote from the research from Shanxi University, "The response to Fe3+ allows for a linear dynamic range from 5 x 10(-7) mol/L to 2 x 10(-5) mol/L with a detection limit of 1.2 x 10(-7) mol/L. The other common metal ions did not cause interference. Moreover, the proposed method was applied to the detection of serum iron contents in human serum samples and the recoveries were 84.12-101.70%. In addition, an interesting fluorescence signal 'off-on' phenomena of the Ag NCs probe was observed. The fluorescence of the Ag NCs probe could be switched 'off' with addition of Fe3+ solution and 'on' in the presence of EDTA solution because of the competition for Fe3+. This property enables the probe to be possible for constructing practicable and reusable sensor."

According to the news reporters, the research concluded: "All above features indicated that functionalized silver nanoclusters-based fluorescent probe as sensing platform hold great potential for applications in biological and analytical detection."

For more information on this research see: Glutathione capped silver nanoclusters-based fluorescent probe for highly sensitive detection of Fe3+. Sensors and Actuators B-Chemical, 2014;202():631-637. Sensors and Actuators B-Chemical can be contacted at: Elsevier Science Sa, PO Box 564, 1001 Lausanne, Switzerland (see also Peptides).

Our news journalists report that additional information may be obtained by contacting Z. Chena, Shanxi Univ, Inst Environm Sci, Taiyuan 030006, People's Republic of China. Additional authors for this research include D.T. Lu, G.M. Zhang, J. Yang, C. Dong and S.M. Shuang.

Keywords for this news article include: Taiyuan, People's Republic of China, Asia, Emerging Technologies, Glutathione, Nanoclusters, Nanotechnology, Oligopeptides

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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