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New Nanosheets Study Findings Have Been Reported by Investigators at National University (Computer-assisted electrochemical fabrication of a highly...

August 7, 2014



New Nanosheets Study Findings Have Been Reported by Investigators at National University (Computer-assisted electrochemical fabrication of a highly selective and sensitive amperometric nitrite sensor based on surface decoration of ...)

By a News Reporter-Staff News Editor at Computer Weekly News -- Fresh data on Nanosheets are presented in a new report. According to news reporting from Santa Fe, Argentina, by VerticalNews journalists, research stated, "For the first time, a novel, robust and very attractive statistical experimental design (ED) using minimum-run equireplicated resolution IV factorial design (Min-Run Res IV FD) coupled with face centered central composite design (FCCCD) and Derringer's desirability function (DF) was developed to fabricate a highly selective and sensitive amperometric nitrite sensor based on electrodeposition of CoNi bimetallic alloy nanoparticles (NPs) on electrochemically reduced graphene oxide (ERGO) nanosheets. The modifications were characterized by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), energy dispersive X-ray spectroscopic (EDS), scanning electron microscopy (SEM) techniques."

The news correspondents obtained a quote from the research from National University, "The CoNi bimetallic alloy NPs were characterized using digital image processing (DIP) for particle counting (density estimation) and average diameter measurement. Under the identified optimal conditions, the novel sensor detects nitrite in concentration ranges of 0.1-30.0 mu M and 30.0-330.0 mu M with a limit of detection (LOD) of 0.05 mu M. This sensor selectively detects nitrite even in the presence of high concentration of common ions and biological interferents therefore, we found that the sensor is highly selective. The sensor also demonstrated an excellent operational stability and good antifouling properties."

According to the news reporters, the research concluded: "The proposed sensor was used to the determination of nitrite in several foodstuff and water samples."

For more information on this research see: Computer-assisted electrochemical fabrication of a highly selective and sensitive amperometric nitrite sensor based on surface decoration of electrochemically reduced graphene oxide nanosheets with CoNi bimetallic alloy nanoparticles. Materials Science & Engineering C-Materials for Biological Applications, 2014;40():109-120. Materials Science & Engineering C-Materials for Biological Applications can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands.

Our news journalists report that additional information may be obtained by contacting M.B. Gholivand, Univ Nacl Litoral, Catedra Quim Analit 1, Lab Desarrollo Analit & Quimiometria LADAQ, Santa Fe, Argentina. Additional authors for this research include A.R. Jalalvand and H.C. Goicoechea.

Keywords for this news article include: Santa Fe, Argentina, Chemistry, Computers, Nanosheets, Nanoparticle, South America, Nanotechnology, Electrochemical, Emerging Technologies

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


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Source: Computer Weekly News


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