A glucose biosensor based on surface active maghemite nanoparticles

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F13%3A33145795" target="_blank" >RIV/61989592:15310/13:33145795 - isvavai.cz</a>
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S0956566313000468" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0956566313000468</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.bios.2013.01.043" target="_blank" >10.1016/j.bios.2013.01.043</a>

Result language
angličtina
Original language name
A glucose biosensor based on surface active maghemite nanoparticles
Original language description
A simple carbon paste (CP) electrode, modified with novel maghemite (gama-Fe2O3) nanoparticles, called SAMNs (suface active maghemite nanoparticles) and characterized by a mean diameter of about 10 nm, has been developed. The electrode catalyzes 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 an ionic liquid, namely 1-butyl-3-methylimidazolium hexafluorophosphate (BMIM-PF6), was introduced. At ?0.1 V, the sensitivity of the SAMN-BMIM-PF6-CP electrode was 206.51 nA mýM?1 cm?2, with a detection limit (S/N=3) of 0.8 mýM, in the 0-1.5 mM H2O2 concentration range. Furthermore, glucose oxidase was immobilized on the surface of maghemite nanoparticles as a monomolecular layer, by a bridge constituted of rhodamine B isothiocyanate, leading to a fluorescent, magnetic drivable nanocatalyst, containing 10+-2 enzyme molecules per nanoparticle. The resulting enzyme electrode presents
Czech name
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Czech description
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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
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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)

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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