By a News Reporter-Staff News Editor at Life Science Weekly -- New research on Hydrogen is the subject of a report. According to news reporting from Chongqing, People's Republic of China, by NewsRx journalists, research stated, "An interesting, simple, and label-free strategy for the detection of hydrogen peroxide and glucose has been developed with polyethyleneimine (PEI)-capped copper nanoclusters as a fluorescence probe in aqueous solution. The PEI-templated Cu nanoclusters which we have synthesized have an average diameter of 1.8 nm and show a blue emission at 480 nm."
The news correspondents obtained a quote from the research from Southwest University, "In the presence of hydrogen peroxide, the fluorescence of the Cu nanoclusters is quenched. Similarly, glucose oxidase catalyzes the oxidation of glucose to gluconic acid and H2O2, so we can also use this probe to detect glucose. Because of the high zymolyte specificity of glucose oxidase, the detection of glucose has good selectivity. Under the optimized experimental conditions, the linear ranges for H2O2 and glucose are 0.5-10 ?M and 10-100 ?M, respectively. And the detection limits for H2O2 and glucose are 0.4 and 8 ?M, respectively. Furthermore, we discussed the mechanism of fluorescence quenching which is caused by the interaction between H2O2 and Cu nanoclusters."
According to the news reporters, the research concluded: "This sensing system has been applied successfully to the detection of glucose in human serum samples."
For more information on this research see: Fluorescent detection of hydrogen peroxide and glucose with polyethyleneimine-templated Cu nanoclusters. Spectrochimica Acta Part A, Molecular and Biomolecular Spectroscopy, 2014;118():315-20 (see also Hydrogen).
Our news journalists report that additional information may be obtained by contacting Y. Ling, Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People's Taiwan. Additional authors for this research include N. Zhang, F. Qu, T. Wen, Z.F. Gao, N.B. Li and H.Q Luo.
Keywords for this news article include: Asia, Gases, Anions, Alkenes, Elements, Chongqing, Chemistry, Electrolytes, Hydrocarbons, Nanoclusters, Nanotechnology, Hydrogen Peroxide, Polyethyleneimine, Inorganic Chemicals, Emerging Technologies, Reactive Oxygen Species, People's Republic of China.
Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC