Next Article in Journal / Special Issue
Variable Temperature Synthesis of Tunable Flame-Generated Carbon Nanoparticles
Previous Article in Journal
Towards Controlled Degradation of Poly(lactic) Acid in Technical Applications
Previous Article in Special Issue
Polyamide 12/Multiwalled Carbon Nanotube and Carbon Black Nanocomposites Manufactured by 3D Printing Fused Filament Fabrication: A Comparison of the Electrical, Thermoelectric, and Mechanical Properties
Article

Nanocomposite of Ellagic Acid with Multi-Walled Carbon Nanotubes for the Simultaneous Voltammetric Detection of Six Biomolecules

Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, ON M1C 1A4, Canada
*
Author to whom correspondence should be addressed.
Academic Editor: Patrizia Savi
Received: 18 March 2021 / Revised: 21 April 2021 / Accepted: 23 April 2021 / Published: 3 May 2021
(This article belongs to the Collection Feature Papers in the Science and Engineering of Carbons)
In this proof-of-concept study, a highly sensitive electrochemical sensor using a graphite paste electrode modified with ellagic acid and multi-walled carbon nanotubes (MGPE/MWCNTs-EA) was developed for the simultaneous determination of six biomolecules: ascorbic acid (AA), dopamine (DA), uric acid (UA), tryptophan (Trp), xanthine (XA), and caffeine (CA). Differential pulse voltammetry (DPV) was performed at a potential range from 0.1–1.2 V vs. Ag/AgCl in phosphate electrolyte (pH 2.0). The modified GPE enabled the simultaneous determination of biomolecules under investigation in human urine and blood serum samples with detection limits ranging from 11–91 nM with recoveries of 94.0–106.0%. The electrochemical performance of the modified GPE for the analytes was stable and reproducible and checked with standard high performance liquid chromatography technique. The data suggested that the modified GPE provided a promising platform for routine quantitative determination of the biomolecules under investigation in quality control studies of real samples collected from food and pharmaceutical products. View Full-Text
Keywords: electrochemical sensor; modified electrode; ellagic acid; multi-walled carbon nanotubes; voltammetry electrochemical sensor; modified electrode; ellagic acid; multi-walled carbon nanotubes; voltammetry
Show Figures

Figure 1

MDPI and ACS Style

Sabbaghi, N.; Noroozifar, M.; Kerman, K. Nanocomposite of Ellagic Acid with Multi-Walled Carbon Nanotubes for the Simultaneous Voltammetric Detection of Six Biomolecules. C 2021, 7, 43. https://0-doi-org.brum.beds.ac.uk/10.3390/c7020043

AMA Style

Sabbaghi N, Noroozifar M, Kerman K. Nanocomposite of Ellagic Acid with Multi-Walled Carbon Nanotubes for the Simultaneous Voltammetric Detection of Six Biomolecules. C. 2021; 7(2):43. https://0-doi-org.brum.beds.ac.uk/10.3390/c7020043

Chicago/Turabian Style

Sabbaghi, Najmeh, Meissam Noroozifar, and Kagan Kerman. 2021. "Nanocomposite of Ellagic Acid with Multi-Walled Carbon Nanotubes for the Simultaneous Voltammetric Detection of Six Biomolecules" C 7, no. 2: 43. https://0-doi-org.brum.beds.ac.uk/10.3390/c7020043

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop