News Column

New Peroxidases Study Results from Banaras Hindu University Described

June 17, 2014

By a News Reporter-Staff News Editor at Life Science Weekly -- Investigators publish new report on Enzymes and Coenzymes. According to news reporting out of Uttar Pradesh, India, by NewsRx editors, research stated, "The effect of Pd-WO3-SiO2 nanocomposite on the electrochemical behavior of Prussian blue nanoparticles (PBNPs) is investigated."

Our news journalists obtained a quote from the research from Banaras Hindu University, "The Pd-WO3-SiO2 is made from tungstic acid sol followed by sonication with palladium linked 3-Glycidoxypropyltrimethoxysilane sol. The homogenized sol is then allowed to form gel under ambient conditions and calcinated at 600 degrees C. PBNPs sol is made as described earlier [Electrochimica Acta. 87 (2013) 1-81 and mixed with Pd-WO3-SiO2 followed by sonication and drying at 65 C. The resulting Pd-WO3-SiO2-PB shows average size to the order of 85 nm as characterized by transmission electron microscopy."

According to the news editors, the research concluded: "The nanocomposite shows excellent peroxidase mimetic and electrocatalytic behavior for H2O2 analysis and experimental finding justified the following conclusions; (1) WO3 and Pd-WO3-SiO2 gradually improve the catalytic efficiency of PBNPs, (2) WO3, Pd-WO3-SiO2 and Pd-WO3-SiO2-PB shows peroxidase mimetic behavior having catalytic efficiency in the order of Pd-WO3-SiO2-PB > Pd-WO3-SiO2 >WO3, (3) Pd-WO3-SiO2-PB nanocomposite exhibits excellent electrocatalytic property for H2O2 sensing with catalytic rate constant to the order of 7.5 x 104 M-1 s(-1) HRP-modified Pd-WO3-SiO2-PB shows 7 fold enhanced analytical sensitivity as compared to that of Pd-WO3-SiO2-PB system."

For more information on this research see: Studies on electrochemical and peroxidase mimetic behavior of Prussian blue nanoparticles in presence of Pd-WO3-SiO2 Nanocomposite, bioelectro-catalytic sensing of H2O2. Electrochimica Acta, 2014;127():132-138. Electrochimica Acta can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England (see also Enzymes and Coenzymes).

Our news journalists report that additional information may be obtained by contacting P.C. Pandey, Banaras Hindu Univ, Indian Inst Technol, Dept. of Chem, Varanasi 221005, Uttar Pradesh, India. Additional authors for this research include A. Prakash and A.K. Pandey.

Keywords for this news article include: Asia, India, Chemistry, Peroxidases, Nanoparticle, Uttar Pradesh, Prussian Blue, Nanotechnology, Electrochemical, Oxidoreductases, Emerging Technologies, Enzymes and Coenzymes

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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