Faculty of Natural Sciences: Recent submissions
Now showing items 721-740 of 2636
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An efficient inclusion complex based fluorescent sensor for mercury (ii) and its application in live cell imaging
(Springer, 2022)The formation of an inclusion complex between hydroxypropyl-β-cyclodextrin (H-CD) and 4-acetylphenyl-4-(((6- chlorobenzo[d]thiazol-2-yl)-imino)-methyl)-benzoate (L) was investigated by FT-IR, 1 H-NMR, X-ray difraction ... -
Synthesis, theoretical calculation, and biological studies of mono- and diphenyltin(iv) complexes of n-methyl-n-hydroxyethyldithiocarbamate
(MDPI, 2022)In this study, chlorophenyltin(IV) [(C6H5)(Cl)Sn(L)2] and diphenyltin(IV) [(C6H5)2Sn(L)2] of N-methyl-N-hydroxyethyldithiocarbamate were prepared and characterized using various spectroscopic methods (FTIR, 1H, 13C, and ... -
Plant antimicrobial peptides (pamps): Features, applications, production, expression and challenges
(MDPI, 2022)The quest for an extraordinary array of defense strategies is imperative to reduce the challenges of microbial attacks on plants and animals. Plant antimicrobial peptides (PAMPs) are a subset of antimicrobial peptides ... -
Catalytic reduction of 4-nitrophenol and methylene blue by biogenic gold nanoparticles synthesized using Carpobrotus edulis fruit (sour fig) extract
(SAGE Publications, 2022)Along with the increasing requirement for efficient organic conversions using green chemistry, there is a need to develop highly efficient and eco-friendly catalytic reaction systems. Gold nanoparticles (AuNPs)-based ... -
Genetic characterization of the central variable region in African swine fever virus isolates in the Russian federation from 2013 to 2017
(MDPI, 2022)African swine fever virus (ASFV), classified as genotype II, was introduced into Georgia in 2007, and from there, it spread quickly and extensively across the Caucasus to Russia, Europe and Asia. The molecular epidemiology ... -
Structure and biosynthesis of carotenoids produced by a novel Planococcus sp. isolated from South Africa
(BMC, 2022)The genus Planococcus is comprised of halophilic bacteria generally reported for the production of carotenoid pigments and biosurfactants. In previous work, we showed that the culturing of the orange-pigmented Planococcus ... -
Morphometric and structural analysis of Florida manateespermatozoa
(Wiley, 2022)Sperm characteristics, such as sperm morphology and sperm morphometry areimportant in assessing sperm quality. This is especially important for the man-agement and conservation of endangered and exotic species, like the ... -
Repurposing based identification of novel inhibitors against mmps5-mmpl5 efflux pump of Mycobacterium smegmatis: A combined in silico and in vitro study
(MDPI, 2022)In the current era of a pandemic, infections of COVID-19 and Tuberculosis (TB) enhance the detrimental effects of both diseases in suffering individuals. The resistance mechanisms evolving in Mycobacterium tuberculosis ... -
The combat-tb workbench: Making powerful Mycobacterium tuberculosis bioinformatics accessible
(American Society for Microbiology, 2022)Whole-genome sequencing (WGS) is a powerful method for detecting drug resistance, genetic diversity, and transmission dynamics of Mycobacterium tuberculosis. Implementation of WGS in public health microbiology laboratories ... -
Oligosaccharides production from coprophilous fungi: An emerging functional food with potential health-promoting properties
(Elsevier, 2022)Functional foods are essential food products that possess health-promoting properties for the treatment of infectious diseases. In addition, they provide energy and nutrients, which are required for growth and survival. ... -
Dynamic Properties of a Sporadic Sodium Layer Revealed by Observations Over Zhongshan, Antarctica: A Case Study
(Journal of Geophysical Research: Space Physics, 2021)A sodium Doppler lidar system with three-directional measurements of sodium density, atmospheric wind field, and temperature was established at Zhongshan (69.4°S, 76.4°E), Antarctica. On November 14, 2019, a sporadic sodium ... -
Common Deficiencies Found in the Active Pharmaceutical Ingredient (API) Section of Non-sterile Generic Products Submitted for Registration by SAHPRA
(Springer Science and Business Media Deutschland GmbH, 2023)Purpose: This research study aims to determine the qualitative and quantitative common deficiencies included in the API section of dossiers submitted to SAHPRA. The study was conducted retrospectively over a 7-year period ... -
Cost of Traditional Herbal Medicines for Noncommunicable Diseases in Rural and Urban Communities in South Africa
(Elsevier Inc., 2022)Objectives: This study assessed traditional herbal medicine (THM) and conventional medicine (CM) utilization among par- participants with a noncommunicable diseases in South Africa. Methods: A cross-sectional study of the ... -
First HETDEX Spectroscopic Determinations of Lyα and UV Luminosity Functions at z=2–3: Bridging a Gap between Faint AGNs and Bright Galaxies
(The Astrophysical Journal, 2021)We present Lyα and ultraviolet (UV)-continuum luminosity functions (LFs) of galaxies and active galactic nuclei (AGNs) at z = 2.0–3.5 determined by the untargeted optical spectroscopic survey of the Hobby–Eberly Telescope ... -
Real-time assessment of Candida biofilm disruption by Galenia africana
(2022-05-25)Candida species often cause opportunistic infections in immunocompromised patients and are able to form highly structured biofilms that protect the yeast cells from the external environment and the action of antimicrobials. ... -
Development of a 127Xe calibration source for nEXO
(IOP Publishing, 2022)We study a possible calibration technique for the nEXO experiment using a 127Xe electron capture source. nEXO is a next-generation search for neutrinoless double beta decay (0νββ) that will use a 5-tonne, monolithic liquid ... -
Dehydrogenation of metal hydride reactor-phase change materials coupled with light-duty fuel cell vehicles
(MDPI, 2022)The popularity of using phase change materials (PCMs) for heat storage and recovery of metal hydrides’ reaction has grown tremendously. However, a fundamental study of the coupling of such a system with a low-temperature ... -
A new parameter-uniform discretization of semilinear singularly perturbed problems
(MDPI, 2022)In this paper, we present a numerical approach to solving singularly perturbed semilinear convection-diffusion problems. The nonlinear part of the problem is linearized via the quasilinearization technique. We then design ... -
In vitro alpha-glucosidase and alpha-amylase inhibitory activities and antioxidant capacity of helichrysum cymosum and helichrysum pandurifolium schrank constituents
(MDPI, 2022)Diabetes mellitus (DM) is a group of systemic metabolic disorders with a high rate of morbidity and mortality worldwide. Due to the detrimental side effects of the current treatment, there is a great need to develop more ... -
A structure function analysis of vst-cosmos agn
(EDP Sciences, 2022)We present our sixth work in a series dedicated to variability studies of active galactic nuclei (AGN), based on the survey of the COSMOS field by the VLT Survey Telescope (VST). Its 54 r-band visits over 3.3 yr and ...