Gold‐dendrimer Nanocomposite based Electrochemical Sensor for Dopamine
Abstract: An electrochemical sensor for dopamine was developed by electrodepositing poly (propylene imine) (PPI) dendrimer and gold nanoparticles (AuNPs) onto a glassy carbon electrode (GCE). Electrochemical characterisation of the sensor was carried out by cyclic voltammetry and electrochemical impedance spectroscopy in ferri/ferrocyanide electrolyte. The nanocomposite electrode (GCE‐PPI‐AuNPs) showed improved electroactive surface area and electrochemical response over bare GCE. The sensor recorded a detection limit of 0.16 μM over a concentration range of 0.1 μM to 125 μM. The sensor was applied for dopamine detection in human serum samples and in the presence of interfering substances such as ascorbic acid and epinephrine.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Gold‐dendrimer Nanocomposite based Electrochemical Sensor for Dopamine ; day:19 ; month:09 ; year:2022 ; extent:1
Electroanalysis ; (19.09.2022) (gesamt 1)
- Creator
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Sipuka, Dimpo S.
Arotiba, Omotayo A.
Sebokolodi, Tsholofelo I.
Tsekeli, Tebogo R.
Nkosi, Duduzile
- DOI
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10.1002/elan.202200099
- URN
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urn:nbn:de:101:1-2022091915232402367349
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:37 AM CEST
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Associated
- Sipuka, Dimpo S.
- Arotiba, Omotayo A.
- Sebokolodi, Tsholofelo I.
- Tsekeli, Tebogo R.
- Nkosi, Duduzile
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