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Electrochemical determination of hydrogen peroxide production by isolated mitochondria: A novel nanocomposite carbon-maghemite nanoparticle electrode

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F13%3A33145799" target="_blank" >RIV/61989592:15310/13:33145799 - isvavai.cz</a>

  • Result on the web

    <a href="http://www.sciencedirect.com/science/article/pii/S0925400512009574" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0925400512009574</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.snb.2012.09.044" target="_blank" >10.1016/j.snb.2012.09.044</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Electrochemical determination of hydrogen peroxide production by isolated mitochondria: A novel nanocomposite carbon-maghemite nanoparticle electrode

  • Original language description

    A simple carbon paste electrode modified with novel maghemite (gama-Fe2O3) nanoparticles, characterized by a mean diameter of about 10 nm and specific surface properties (called surface active maghemite nanoparticles, SAMNs) has been developed. The electrode is able to catalyze the electro-reduction of hydrogen peroxide at low applied potentials (?0.1 V vs. SCE). In order to improve the electrocatalytic properties of the modified electrode and to protect electrode surface from fouling due to the presence of biological materials, a surfactant, namely cetyltrimethylammonium bromide, was introduced, as monomolecular layer, on electrode surface. At ?0.1 V, the sensitivity of the modified nanocomposite electrode was 58 nA mýM?1 cm?2, with a detection limitof 2.78 mýM, in the 0.01-1.5 mM H2O2 concentration range, revealing to be one of the most sensitive electrodes described in literature. The resulting electrode was used to determine native monoamine oxidase activity on intact mitochondria

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CF - Physical chemistry and theoretical chemistry

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2013

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Sensors and Actuators B: Chemical: international journal devoted to research and development of physical and chemical transducers

  • ISSN

    0925-4005

  • e-ISSN

  • Volume of the periodical

    176

  • Issue of the periodical within the volume

    JAN

  • Country of publishing house

    CH - SWITZERLAND

  • Number of pages

    8

  • Pages from-to

    315-322

  • UT code for WoS article

    000319867500044

  • EID of the result in the Scopus database