Synthesis and Electrochemical Investigation of Tetra Amino Cobalt (II) Phthalocyanine functionalized Polyaniline Nanofiber for the Selective Detection of Dopamine

Sudhakara, Sarvajith Malali and Kotresh, Harish M N and Devendrachari, Mruthyunjayachari C and Fasiulla, . (2020) Synthesis and Electrochemical Investigation of Tetra Amino Cobalt (II) Phthalocyanine functionalized Polyaniline Nanofiber for the Selective Detection of Dopamine. Electroanalysis, 32. pp. 1-12. ISSN 1040-0397

[img] PDF
9498.pdf - Published Version
Restricted to Registered users only

Download (2MB) | Request a copy
Official URL: http://www.electroanalysis.wiley-vch.de

Abstract

new electrochemical sensing platform based on tetra-amino cobalt (II) phthalocyanine (TACoPc) ingrained polyaniline (PANI) nanofiber composite (TACoPc/PANI hybrid) has been developed for the selective detection of dopamine. The uniform fibrous network of PANI/TACoPc hybrid was synthesized by a one-step oxidative polymerization at room temperature. The synthesized nanocomposite was characterized using field emission scanning electron microscopy (FESEM), energy dispersive X-ray (EDX), fourier transmission infrared spectroscopy (FTIR), raman spectroscopy, X-ray diffraction (XRD) and UV-Visible spectroscopy. The electrochemical behavior of the TACoPc/PANI hybrid material was studied by using different electrochemical techniques, including cyclic voltammetry (CV) and chronoamperometry in 0.1 M phosphate buffer solution (PBS) of pH 7 by modifying the glassy carbon electrode (GCE). Due to the synergistic impact of PANI and TACoPc, the suggested altered electrode provided superior catalytic performance for dopamine even in the presence of ascorbic acid. It exhibited a linear reaction with a high sensitivity of 1.212 μA/μMcm 2 and a low detection limit of 0.064 μM over the 20–200 μM concentration range in 0.1 M PBS. One of the commonly faced problems of interference of ascorbic acid and uric acid in the electrochemical detection of dopamine was completely excluded from this modified electrode which led to an increase in the catalytic activity of the material for the detection of dopamine in the presence of ascorbic acid

Item Type: Article
Uncontrolled Keywords: s: Dopamine · Electrocatalyst · Nanocomposite · Phthalocyanines · Sensor
Subjects: Engineering > MIT Manipal > Chemistry
Depositing User: MIT Library
Date Deposited: 30 Oct 2020 06:28
Last Modified: 11 Dec 2020 10:24
URI: http://eprints.manipal.edu/id/eprint/155976

Actions (login required)

View Item View Item