Department of Chemistry: Recent submissions
Now showing items 41-60 of 399
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Synthesis of new biguanide derivatives as potential antidiabetic drugs
(University of the Western Cape, 2022)The main purpose of this study was to synthesize biguanide compounds with potential as antidiabetic drugs. All biguanide compounds possess antidiabetic properties by decreasing the blood glucose level. Hence, we embarked ... -
A comparative energy storage efficiency study of multiple cation doped LiMxMn2-xO4/MWCNT cathodes for advanced Li-ion batteries
(University of the Western Cape, 2022)The current lithium-ion battery which is used in most technological applications is the LiCoO2 (LCO) battery. This battery offers a high theoretical capacity of 274 mAh.g-1. Scientists have however deemed this battery ... -
Secondary metabolites of the uromycladium tepperianum McAlpine epiphytic fungus
(University of the Western Cape, 2021)Research on natural products and medicinal plants has been conducted more with each passing year due to the great interest in isolating bioactive compounds and secondary metabolites from natural products such as plants, ... -
Phytochemical studies on extracts of selected South African indigenous medicinal plants
(University of the Western Cape, 2022)Nature has been identified as a rich source of potentially useful chemicals. Throughout the years, phytochemical studies have led to the unearthing of a huge number of natural products, their chemical diversity is unique ... -
Synthesis, spectroscopic characterization, and cyclic voltammetry studies for salicylaldehyde schiff base ligands and their copper (ii) salicylaldimine compounds
(University of the Western Cape, 2022)Schiff base compounds are a significant class of ligands in coordination chemistry which have been applied widely as they are precise and versatile towards different metal salts. These compounds could be commonly chelating ... -
Phytochemical and biological studies of extracts from selected South African indigenous medicinal plants: Bulbine and helichrysum species
(University of the Western Cape, 2022)Medicinal plants from the Asteraceae and Asphodelaceae families are among the most widely recognized in South African traditional medicine for managing diabetes mellitus. Diabetes mellitus is a universal epidemic, yet there ... -
Identification, separation and quantification of persistent organic pollutants using capillary electrophoresis
(University of the Western Cape, 2022)Water quality deterioration and scarcity can be attributed to natural causes and anthropogenic activities which include climate change and an incessant industrialisation, yet with lack of functional and reliable wastewater ... -
The nano-optimization of p- and e-type semiconductor films for efficient perovskite photovoltaics
(University of the Western Cape, 2022)Perovskite solar cells (PSCs) have gained a lot of attraction due to the multiple existing, inexpensive production methods, the flexibility of materials and structures that can be utilized, and the outstanding optoelectric ... -
Electro-analytical protocols for quantitative assessment of phenols in South African rooibos, green and black tea samples
(University of Western Cape, 2022)The worldwide tea market was estimated at almost 200 billion U.S. dollars in 2020. It is perceived to rise to 318 billion dollars by 2025. Tea has a long history of prominence around the world. Increases in tea production ... -
Tellurium selenide-gadolinium tungsten oxide quantum dot material for supercapacitor
(University of Western Cape, 2022)Renewable energy has become the main alternative solution to the “energy crisis” the world is faced with. A supercapacitor is one of the energy storage devices capable of storing and releasing energy at a higher rate ... -
Indium nanoparticulate-modified polyanilino-co-4-aminobenzoic acid amperometric sensor for the detection of lapatinib, a breast cancer drug.
(University of the Western Cape, 2022)Lapatinib is a highly prescribed drug used in combination with other drugs to treat breast cancer. Due to drug toxicity-related side effects experienced by some patients, there is need to determine appropriate dosage for ... -
Gold nanoparticulate modified thioglycolic acid (tga) phenotype nanobiosensor for tuberculosis drugs
(University of the Western Cape, 2022)Tuberculosis (TB) carries on being a major global health issue and it is responsible for 1.5 million disease-related mortality in 2020, according to the World Health organisation (WHO). One of the major causes of death ... -
Photovoltaics of novel samarium and terbium doped caesium gallium iodobromide hollow-nanocrystals perovskite
(University of the Western Cape, 2022)Perovskite solar cells have recently piqued the scientific community's interest due to their outstanding performance, which has seen them achieve up to 25% power conversion efficiency (PCE) after just 7 to 8 years of ... -
Microwave synthesized ruthenium antimony oxide-graphene nanocomposite materials for asymmetric supercapacitors
(University of the Western Cape, 2022)With the rapid rise in energy demand and ever-escalating environmental hazards, the need for transition from fossil fuel to renewable energy sources is of paramount importance, requiring better and efficient energy storage ... -
Hydrothermal conversion of agricultural and food waste
(University of Western Cape, 2022)The global dependence on non-renewable fossil fuels to meet energy needs cannot be sustained for a long time and it is already evident in the escalation of fuel prices over the past decade. This research was performed ... -
Polydopamine coated platinum catalysts to improve fuel cells durability
(University of Western Cape, 2022)Polymer electrolyte membrane fuel cells (PEMFC) are in the forefront of energy production and have drawn a great deal of attention in both fundamental and application in recent years. It is a promising energy system used ... -
Hydrogen generation by hydrolysis of magnesium and aluminium alloys and their hydrides
(University of the Western Cape, 2021)This study presents the successful characterization and hydrolysis of magnesium hydride (MgH2) for hydrogen generation. The as-received MgH2 served as a precursor in most of the hydrolysis experiments for H2 generation. ... -
Secondary metabolites of the uromycladium tepperianum macalpine epiphytic fungus
(University of the Western Cape, 2021)Research on natural products and medicinal plants has been conducted more with each passing year due to the great interest in isolating bioactive compounds and secondary metabolites from natural products such as plants, ... -
Polypyrrole supports for direct alcohol fuel cells.
(University of Western Cape, 2021)Anode catalysts are one of the key components of direct alcohol fuel cells (DAFCs). They play a huge role in the alcohol oxidation reaction (AOR) that occurs on the anode side. Palladium (Pd) supported on carbon material ... -
The role of surface modified TiO2 nanoparticles for application in 68Ge/68Ga generator systems and the use of molecular imprinted polymers for 68Ge breakthrough control
(University of Western Cape, 2021)Titanium dioxide (TiO2) has potential as an adsorbent within the 68Ge/68Ga generator context. To function effectively, three basic requirements are required: optimum 68Ga elution efficiency, stability and removal of the ...