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Theses and Dissertations (Chemistry): Recent submissions
Now showing items 1-20 of 276
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(University of Pretoria, 2019-11)Copper is one of the most useful electrocatalysts for electrochemically converting CO2 to hydrocarbons and alcohols. Unfortunately, copper suffers from a lack of selectivity and efficiency. Earth-abundant electrocatalysts ...
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(University of Pretoria, 2019-06)Alzheimer’s disease (AD) is the most common neurodegenerative disease accounting for an estimated 60 – 80 % of dementia cases. The disease affected 5.5 million Americans older than 65 years in 2018 alone, and this number ...
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(University of Pretoria, 2018-12)The major disease burden for the majority of the world’s population is due to infectious diseases. The most prevalent are HIV/AIDS, tuberculosis, lower respiratory tract infections, diarrhoeal diseases and malaria. In ...
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(University of Pretoria, 2024-03-28)2-Methyl-4'-(methylthio)-2-morpholinopropiophenone (MMMP) is a highly modified synthetic cathinone derived from natural occurring cathinone, the main psychoactive alkaloid present in Catha edulis Forsk. or khat. Synthetic ...
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(University of Pretoria, 2024-03)Flow chemistry has become an appealing alternative synthetic technology globally over the last few decades finding application in both academic and industrial laboratories driven largely by the fact that it commonly provides ...
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(University of Pretoria, 2023)Given that South Africa is home to around 10% of all flowering plant species known to humans, the country is blessed with an abundance of natural resources. About 24,000 plant species have yet to be fully uncovered for the ...
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(University of Pretoria, 2024-02-23)Carbon dioxide is the fourth most abundant gas in the atmosphere making up 0.035 %. Carbon dioxide prevents heat from escaping into the outer space and is used by plants to make oxygen. The levels of carbon dioxide have ...
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(University of Pretoria, 2024-02-20)During the latter half of the previous century, new mycotoxins were discovered as secondary metabolites of fungi in major grains before harvest. The prevalence of these toxic compounds and the negative health effects caused ...
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The semiochemistry of fruits as seen through the lens of Tephritid fruit flies and their parasitoids (University of Pretoria, 2024-02)The tephritid fruit fly is a term well-known in fruit and vegetable production. Several techniques including the use of parasitoids have been deployed for fruit fly control. In Sub-Saharan Africa, Fopius arisanus (Sonan) ...
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(University of Pretoria, 2023-12-14)Cooperativity is a strange phenomenon in water clusters, characterized by a non-linear decrease in the average electronic energy of a water molecule or hydrogen bond with an increase in cluster size. The main aim of this ...
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(University of Pretoria, 2023-06-13)Fipronil is a widely used insecticide which exerts selective toxicity towards the GABA receptors of insects and has no known pesticide resistance in target insects. This, in turn, has led to the increase in the usage of ...
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(University of Pretoria, 2023-11)Endocrine disrupting chemicals (EDCs) are commonly found in products such as pesticides, plastics, and pharmaceuticals. These chemicals are of significant concern due to their potential to disrupt the endocrine system, ...
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(University of Pretoria, 2023-10-23)N-nitrosamines (NAs) are widely recognized as cancer-causing and genotoxic substances that emerge in water primarily as a result of chlorination or chloramination disinfection processes when nitrogen-containing compounds ...
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(University of Pretoria, 2023)Nuclear Medicine imaging involves the monitoring of disease processes by using radioactive signals produced by radiopharmaceuticals (injected intravenously) to monitor the pharmacokinetic behaviour of compounds non-invasively ...
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(University of Pretoria, 2023)This study involves the computational investigation into the perceived reactivity of a group of sixty (60) sub- and extended- chlorine oxide species with the general formulae of CℓxOy applied to water purification. In order ...
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(University of Pretoria, 2023)Worldwide, cancer is among the most common public health issues with an estimated death toll in 2020 of close to 10 million individuals. Although cancer treatments are continuously improving as the use of personalised ...
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(University of Pretoria, 2023)The SARS-CoV-2 virus and, as an extension, the COVID-19 pandemic has led to unprecedented damage, economic hardship, and mental and/or physical strain on a global scale and highlighted humanity’s need for adequate pandemic ...
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(University of Pretoria, 2023)Global plastic and food waste generation has climbed to unprecedented levels, inherently linked to exponential population growth since the 1950s accompanied by industrialization, urbanization and modernization. The reduction ...
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(University of Pretoria, 2022)The bis(arylimino)acenaphthalene (BIAN) group of α-diimine compounds has shown promising electron sink behaviour and redox non-innocent activity as ligands to main group and transition metals. Here we present a series of ...
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(University of Pretoria, 2023)The aim of this study is to develop a process for the valorisation of diamond mine residues. This entailed a combination of thermochemical solid-solid reactions between the mine residues and ammonium sulphate, followed by ...
Now showing items 1-20 of 276