News Column

New Peroxidases Study Findings Have Been Reported from Queensland University of Technology

May 14, 2014

By a News Reporter-Staff News Editor at Biotech Week -- Current study results on Enzymes and Coenzymes have been published. According to news reporting originating from Brisbane, Australia, by NewsRx correspondents, research stated, "The self-assembly of layered molybdenum disulfide-graphene (MoS2-Gr) and horseradish peroxidase (HRP) by electrostatic attraction into a novel hybrid nanomaterial (HRP-MoS2-Gr) is reported. The properties of the MoS2-Gr were characterized by X-ray diffraction (XRD), high-resolution transmission electron microscopy (TEM), electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV)."

Our news editors obtained a quote from the research from the Queensland University of Technology, "UV-vis and Fourier transform infrared spectroscopy (Fr-IR) indicate that the native structure of the HRP is maintained after the assembly, implying good biocompatibility of MoS2-Gr nanocomposite. Furthermore, the HRP-MoS2-Gr composite is utilized as a biosensor, which displays electrocatalytic activity to hydrogen peroxide (H2O2) with high sensitivity (679.7 mu A mM(-1) cm(-2)), wide linear range (0.2 mu M-1.103 mM), low detection limit (0.049 mu pM), and fast amperometric response. In addition, the biosensor also exhibits strong anti-interference ability, satisfactory stability and reproducibility. These desirable electrochemical properties are attributed to the good biocompatibility and electron transport efficiency of the MoS2-Gr composite, as well as the high loading of HRP."

According to the news editors, the research concluded: "Therefore, this biosensor is potentially suitable for H2O2 analysis in environmental, pharmaceutical, food or industrial applications."

For more information on this research see: Investigations of an electrochemical platform based on the layered MoS2-graphene and horseradish peroxidase nanocomposite for direct electrochemistry and electrocatalysis. Biosensors & Bioelectronics, 2014;56():137-143. Biosensors & Bioelectronics can be contacted at: Elsevier Advanced Technology, Oxford Fulfillment Centre The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, Oxon, England. (Elsevier -; Biosensors & Bioelectronics -

The news editors report that additional information may be obtained by contacting H.Y. Song, Queensland University of Technology, Sch Chem Phys & Mech Engn, Brisbane, Qld 4001, Australia. Additional authors for this research include Y.N. Ni and S. Kokot (see also Enzymes and Coenzymes).

Keywords for this news article include: Brisbane, Biosensing, Bioengineering, Electrochemical, Oxidoreductases, Electrochemistry, Bionanotechnology, Nanobiotechnology, Enzymes and Coenzymes, Horseradish Peroxidase, Australia and New Zealand

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

For more stories covering the world of technology, please see HispanicBusiness' Tech Channel

Source: Biotech Week

Story Tools Facebook Linkedin Twitter RSS Feed Email Alerts & Newsletters