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Study Results from State University Provide New Insights into Nanotechnology [A Silsesquioxane Organically Modified with...

August 19, 2014



Study Results from State University Provide New Insights into Nanotechnology [A Silsesquioxane Organically Modified with 4-Amino-5-(4-pyridyl)-4H-1,2,4-triazole-3-thiol: Thermal Behavior and Its Electrochemical Detection of Sulfhydryl Compounds]

By a News Reporter-Staff News Editor at Life Science Weekly -- A new study on Nanotechnology is now available. According to news reporting originating in Araraquara, Brazil, by NewsRx journalists, research stated, "The octakis(3-chloropropyl)silsesquioxane (SS) was organofunctionalized with 4-amino-5-4(pyridyl)-4H-1,2,4-triazole-3-thiol. The product formed (SA) was undergo another reactions in two steps, first with copper and so hexacyanoferrate (III) to form CuHSA."

The news reporters obtained a quote from the research from State University, "The organofunctionalized silsesquioxane was characterized by the following techniques: scanning electron microscopy (SEM), Fourier transform infrared (FTIR), nuclear magnetic resonance (NMR) in solid state, and thermogravimetric analysis in air and nitrogen atmosphere. The composite CuHSA was incorporated into a graphite paste electrode and the electrochemical behavior studies were conducted with cyclic voltammetry. The cyclic voltammogram of the modified graphite paste electrode with CuHSA showed one redox couple with formal potential E-theta' = 0.75V versus Ag/AgCl(sat) (KCl 1.0 mol L-1; v = 20 mV s(-1)) attributed to the redox process Fe-(II) (CN)(6)/Fe-(III)(CN)(6) of the binuclear complex formed. The redox couple presents an electrocatalytic response of sulfhydryl compounds such as n-acetylcysteine and l-cysteine. For determination of n-acetylcysteine and l-cysteine the modified graphite paste electrode showed a linear region in the concentration range of 2 to 20 m mol L-1."

According to the news reporters, the research concluded: "The modified electrode was chemically and electrochemically stable and showed good reproducibility."

For more information on this research see: A Silsesquioxane Organically Modified with 4-Amino-5-(4-pyridyl)-4H-1,2,4-triazole-3-thiol: Thermal Behavior and Its Electrochemical Detection of Sulfhydryl Compounds. Journal of Nanomaterials, 2014;():1-11. Journal of Nanomaterials can be contacted at: Hindawi Publishing Corporation, 410 Park Avenue, 15TH Floor, #287 Pmb, New York, NY 10022, USA. (Hindawi Publishing - www.hindawi.com; Journal of Nanomaterials - www.hindawi.com/journals/jnm/)

Our news correspondents report that additional information may be obtained by contacting D.R. Do Carmo, Univ Estadual Paulista UNESP, Inst Quim Araraquara, Dept. of Fis Quim, BR-14800060 Araraquara, SP, Brazil. Additional authors for this research include D.R. Silvestrini, H.S. Barud, N.L.D. Filho, U.O. Bicalho and L.A. Soares (see also Nanotechnology).

Keywords for this news article include: Brazil, Chemistry, Araraquara, South America, Nanotechnology, Electrochemical

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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