Investigations of the antioxidants, antidiabetics and antiviral potential against SARS-CoV-2 of gold functionalized carboxymethyl cellulose

Investigations of the antioxidants, antidiabetics and antiviral potential against SARS-CoV-2 of gold functionalized carboxymethyl cellulose

A composite of gold and carboxymethyl cellulose (Au-CMC) was prepared from gold(III) chloride and the sodium salt of carboxymethyl cellulose. The prepared composite was characterized by using x-ray diffraction (XRD), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), Fourier-...

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Main Authors: Timothy O Ajiboye, Kolawole A Olofinsan, Nanabi Manamela, Matsabisa G Motlalepula, Modupe O Ogunrombi, Subhendu Dhibar, Frank Eric T Foka, Hazel T Mufhandu, E Erasmus, H G Visser, M Schutte-Smith
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Series:Materials Research Express
Subjects:
gold-carbon composite
antiviral
antidiabetics
antioxidants
cytotoxicity
Online Access:https://doi.org/10.1088/2053-1591/ade7d3
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Summary:A composite of gold and carboxymethyl cellulose (Au-CMC) was prepared from gold(III) chloride and the sodium salt of carboxymethyl cellulose. The prepared composite was characterized by using x-ray diffraction (XRD), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and Energy-dispersive x-ray spectroscopy (EDX). Then, ferric reducing, nitric oxide scavenging and free radical scavenging activities of the synthesized Au-CMC were carried out. In addition, inhibitory activities of the material against α -amylase, α -glucosidase enzymes and SARS-CoV-2 were studied. It was found that the material displayed good antioxidant activities. Especially, its NO scavenging activities was higher than that of vanillin, gold nanoparticles and carboxymethyl cellulose alone. The α -glucosidase enzyme inhibitory effect of the material was better than that of acarbose. Findings also revealed that both CMC and Au-CMC are highly potent against B1.351 and BQ.1.1 variants of SARS-CoV-2. Finally, cytotoxicity studies showed that the two compounds can be used safely in biomedical applications, such as drug delivery, tissue engineering, or as stabilizers in formulations, without concerns.
ISSN:2053-1591

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