Effect of different modification by gold nanoparticles on the electrochemical performance of screen‑printed sensors with boron‑doped diamond electrode
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F23%3A39920593" target="_blank" >RIV/00216275:25310/23:39920593 - isvavai.cz</a>
Result on the web
<a href="https://www.nature.com/articles/s41598-023-48834-7" target="_blank" >https://www.nature.com/articles/s41598-023-48834-7</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41598-023-48834-7" target="_blank" >10.1038/s41598-023-48834-7</a>
Alternative languages
Result language
angličtina
Original language name
Effect of different modification by gold nanoparticles on the electrochemical performance of screen‑printed sensors with boron‑doped diamond electrode
Original language description
Screen-printed sensors with chemically deposited boron-doped diamond electrodes (BDDE) were modifed with diferent types of gold nanoparticles (AuNPs) according to a new original procedure. Physically and electrochemically deposited AuNPs had various sizes and also nanoporous character. They also difer in shape and density of surface coverage. The developed sensors were characterized using scanning electron microscopy and Raman spectroscopy. Their electrochemical properties were studied using cyclic voltammetry and electrochemical impedance spectrometry of selected outer sphere ([Ru(NH3)6]Cl3) and inner sphere (K3[Fe(CN)6], dopamine) redox markers. The application possibilities of such novel screen-printed sensors with BDDE modifed by AuNPs were verifed in the analysis of the neurotransmitter dopamine. The best analytical performance was achieved using printed sensors modifed with the smallest AuNPs. The achieved limit of detection values in nanomolar concentrations (2.5 nmol L−1) are much lower than those of unmodifed electrodes, which confrms the signifcant catalytic efects of gold nanoparticles on the surface of the working electrode. Sensors with the best electrochemical properties were successfully applied in the analysis of a model solution and spiked urine samples.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10406 - Analytical chemistry
Result continuities
Project
<a href="/en/project/GA20-01589S" target="_blank" >GA20-01589S: New strategies for improving sensing properties of novel electrode materials via their surface pretreatment or modification</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Scientific Reports
ISSN
2045-2322
e-ISSN
2045-2322
Volume of the periodical
13
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
12
Pages from-to
21525
UT code for WoS article
001122989300045
EID of the result in the Scopus database
2-s2.0-85178886593