News Column

New Nanosheets Findings from University of Sao Paulo Reported

May 20, 2014

By a News Reporter-Staff News Editor at Physics Week -- Current study results on Nanosheets have been published. According to news originating from Sao Carlos, Brazil, by VerticalNews correspondents, research stated, "A novel material for the electrochemical determination of endocrine disruptors using a composite based on graphene oxide modified with cadmium telluride quantum dots has been evaluated. The morphology, structure and electrochemical performance of the composite electrodes were characterised by transmission electron microscopy, dynamic light scattering, UV-visible absorption spectra, fluorescence spectra, Raman spectra and cyclic voltammetry."

Our news journalists obtained a quote from the research from the University of Sao Paulo, "The dynamic light scattering, transmission electronic microscopy and spectrophotometric measurements all showed good distribution of the quantum dots with a small particle size. The electrochemical measurements demonstrated the high performance of the composite response in the presence of a light source."

According to the news editors, the research concluded: "Differential pulse voltammetry allowed the development of a method to determine 17-estradiol levels in the range from 0.2 to 4.0molL(-1) with a detection limit of 2.8nmolL(-1) (0.76gL(-1))."

For more information on this research see: Graphene Nanosheets and Quantum Dots: A Smart Material for Electrochemical Applications. Chemistry-A European Journal, 2014;20(16):4746-4753. Chemistry-A European Journal can be contacted at: Wiley-V C H Verlag Gmbh, Boschstrasse 12, D-69469 Weinheim, Germany.

The news correspondents report that additional information may be obtained from F.H. Cincotto, University of Sao Paulo, Grp Electrochem Mat & Electroanalyt Methods, Inst Chem Sao Carlos, Sao Carlos, SP, Brazil. Additional authors for this research include F.C. Moraes and S.A.S. Machado.

Keywords for this news article include: Brazil, Chemistry, Sao Carlos, Nanosheets, Quantum Dots, South America, Nanotechnology, Electrochemical, Quantum Physics, Emerging Technologies

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Source: Physics Week