2022
Colloidal lithography as a novel approach for the development of Ni-nanocavity insulin sensor
ŠIŠOLÁKOVÁ, Ivana, Ondrej PETRUŠ, Jana SHEPA, Zdeněk FARKA, Andrej ORIŇÁK et. al.Základní údaje
Originální název
Colloidal lithography as a novel approach for the development of Ni-nanocavity insulin sensor
Autoři
ŠIŠOLÁKOVÁ, Ivana (703 Slovensko), Ondrej PETRUŠ (703 Slovensko), Jana SHEPA (703 Slovensko), Zdeněk FARKA (203 Česká republika, garant, domácí), Andrej ORIŇÁK (703 Slovensko) a Renáta ORIŇAKOVÁ
Vydání
Scientific Reports, Springer Nature, 2022, 2045-2322
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
21001 Nano-materials
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.600
Kód RIV
RIV/00216224:14310/22:00129981
Organizační jednotka
Přírodovědecká fakulta
UT WoS
001014944000030
Klíčová slova anglicky
electrochemical sensor; insulin; colloidal lithography; nanostructures
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 15. 10. 2024 10:29, Ing. Monika Szurmanová, Ph.D.
Anotace
V originále
In this study, a highly sensitive, fast, and selective enzyme-free electrochemical sensor based on the deposition of Ni cavities on conductive glass was proposed for insulin detection. Considering the growing prevalence of diabetes mellitus, an electrochemical sensor for the determination of insulin was proposed for the effective diagnosis of the disease. Colloidal lithography enabled deposition of nanostructured layer (substrate) with homogeneous distribution of Ni cavities on the electrode surface with a large active surface area. The morphology and structure of conductive indium tin oxide glass modified with Ni cavities (Ni-c-ITO) were characterized by scanning electron microscopy (SEM) and atomic force microscopy (AFM). The diameter of the resulting cavities was approximately 500 nm, while their depth was calculated at 190 ± 4 nm and 188 ± 18 nm using AFM and SEM, respectively. The insulin assay performance was evaluated by cyclic voltammetry. Ni-c-ITO exhibited excellent analytical characteristics, including high sensitivity (1.032 µA µmol−1 dm3), a low detection limit (156 µmol dm−3), and a wide dynamic range (500 nmol dm−3 to 10 µmol dm−3). Finally, the determination of insulin in buffer with interferents and in real blood serum samples revealed high specificity and demonstrated the practical potential of the method.
Návaznosti
22020140, interní kód MU |
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90127, velká výzkumná infrastruktura |
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