Electrochemical detection of dopamine using phthalocyanine-nitrogen-doped graphene quantum dot conjugates

Ndebele Nobuhle; Sen, Pinar

Title: Electrochemical detection of dopamine using phthalocyanine-nitrogen-doped graphene quantum dot conjugates
Creator: Ndebele Nobuhle
Creator: Sen, Pinar
Creator: Nyokong, Tebello
Subject: To be catalogued
Date Issued: 2021
Date: 2021
Type: text
Type: article
Identifier: http://hdl.handle.net/10962/185724
Identifier: vital:44418
Identifier: xlink:href="https://doi.org/10.1016/j.jelechem.2021.115111"
Description: Two cobalt phthalocyanine molecules were synthesized, a symmetrically substituted CoPc (1) and an unsymmetrically substituted CoPc (2). These CoPcs were π-π stacked onto nitrogen-doped graphene quantum dots (NGQDs). The CoPcs, NGQDs and their respective conjugates were used as electro-catalytic probes in the electrochemical oxidation of dopamine. The molecules were adsorbed onto a glassy carbon electrode (GCE) using the drop dry method, the GCE was used to support those catalysts. The electrooxidation of dopamine was studied using cyclic voltammetry and chronoamperometry. An improvement in the sensitivity and limit of detection was observed upon conjugation.
Format: computer
Format: online resource
Format: application/pdf
Format: 1 online resource (11 pages)
Format: pdf
Publisher: Elsevier
Language: English
Relation: Journal of Electroanalytical Chemistry
Relation: Ndebele, N., Sen, P. and Nyokong, T., 2021. Electrochemical detection of dopamine using phthalocyanine-nitrogen-doped graphene quantum dot conjugates. Journal of Electroanalytical Chemistry, 886, p.115111
Relation: Journal of Electroanalytical Chemistry number 886 p. 115111 2021 1572-6657
Rights: Publisher
Rights: Use of this resource is governed by the terms and conditions of the Elsevier Terms and Conditions Statement (https://www.elsevier.com/legal/elsevier-website-terms-and-conditions)
Rights: Closed Access

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RU DST/NRF SARChI for Medicinal Chemistry and Nanotechnology

Nyokong, Tebello (Distinguished Professor)

RU Department of Chemistry

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