Glucose sensing on graphite screen-printed electrode modified by sparking of copper nickel alloys

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F17%3A73583553" target="_blank" >RIV/61989592:15310/17:73583553 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14310/17:00096413

Result on the web

<a href="http://www.sciencedirect.com/science/article/pii/S003991401631013X" target="_blank" >http://www.sciencedirect.com/science/article/pii/S003991401631013X</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.talanta.2016.12.064" target="_blank" >10.1016/j.talanta.2016.12.064</a>

Result language

angličtina

Original language name

Glucose sensing on graphite screen-printed electrode modified by sparking of copper nickel alloys

Original language description

Electric spark discharge was employed as a green, fast and extremely facile method to modify disposable graphite screen-printed electrodes (SPEs) with copper, nickel and mixed copper/nickel nanoparticles (NPs) in order to be used as nonenzymatic glucose sensors. Direct SPEs-to-metal (copper, nickel or copper/nickel alloys with 25/75, 50/50 and 75/25 wt% compositions) sparking at 1.2 kV was conducted in the absence of any solutions under ambient conditions. Morphological characterization of the sparked surfaces was performed by scanning electron microscopy, while the chemical composition of the sparked NPs was evaluated with energy dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy. The performance of the various sparked SPEs towards the electro oxidation of glucose in alkaline media and the critical role of hydroxyl ions were evaluated with cyclic voltammetry and kinetic studies. Results indicated a mixed charge transfer- and hyroxyl ion transport-limited process. Best performing sensors fabricated by Cu/Ni 50/50 wt% alloy showed linear response over the concentration range 2-400 mu M glucose and they were successfully applied to the amperometric determination of glucose in blood. The detection limit (S/N 3) and the relative standard deviation of the method were 0.6 mu M and &lt; 6% (n=5, 2 mu M glucose), respectively. Newly devised sparked Cu/Ni graphite SPEs enable glucose sensing with distinct advantages over existing glucose chemical sensors in terms of cost, fabrication simplicity, disposability, and adaptation of green methods in sensor&apos;s development.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10403 - Physical chemistry

Project

<a href="/en/project/GA15-05198S" target="_blank" >GA15-05198S: Nanostructured metal layers on conductive and semiconductive substrates as a sensing platform for application in chemical and biomedical analysis</a><br>

Continuities

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

Publication year

2017

Confidentiality

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

Name of the periodical

Talanta

ISSN

0039-9140

e-ISSN

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Volume of the periodical

165

Issue of the periodical within the volume

April

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

8

Pages from-to

466-473

UT code for WoS article

000394064700066

EID of the result in the Scopus database

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