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Now showing items 11-20 of 27
Multilayer graphene modified metal film electrodes for the determination of trace metals by anodic stripping voltammetry
(2013)
In this study multilayer graphene nanosheets was synthesize by oxidizing graphite to graphene oxide using H2SO4 and KMnO4 followed by reduction of graphene oxide to graphene using NaBH4. The graphene nanosheets were ...
The synthesis and electrochemical studies of chalcones and flavanones: an investigation of their antioxidant activity
(University of Western Cape, 2013)
Flavonoids, one of the biggest classes of secondary metabolites, are found abundantly in
nature in a broad range of fruits, vegetables and beverages such as tea, coffee, beer, wine and fruit drinks. Flavonoids have been ...
The response dynamics of indium telluride quantum dots impedimetric genosensor for telomerase cancer biomarker
(2013)
Cancer, the second most common cause of death after heart disease, is a complex and multifactorial disease that up to date is still under extensive research. To achieve early detection of cancer disease the discovery of ...
Supported metal catalysts for friedel-crafts alkylation
(2013)
The research focused on the synthesis, characterisation and activity of zeolite supported metal catalysts for the Friedel-Crafts alkylation of benzene with t-butyl chloride. Alkyl benzenes are traditionally produced via ...
Preliminary investigation of the natural contamination of agricultural crops with selected mycotoxins in northern rural South Africa (Limpopo and Mpumalanga Provinces)
(University of Western Cape, 2013)
Subsistence farmers may contribute significantly to food production, food
security, and employment in South Africa. However poor storage practices and
contamination with mycotoxins, particularly fumonisins and aflatoxins ...
Graphenated polyaniline nanocomposite for the determination of polyaromatic hydrocarbons (pahs) in water
(2013)
The thesis presents a simple, sensitive, low cost and a novel graphenated polyaniline doped tungsten trioxide nanocomposite, as an electrochemical sensor for the detection and quantitative and determination of PAHs, which ...
Development of novel hypervalent iodine conjugation strategies towards pneumococcal conjugate vaccines
(2013)
Invasive pneumococcal disease (IPD), which includes potentially fatal conditions such as meningitis, septicaemia and pneumonia poses a threat in children aged <5 years, pneumonia being the leading cause of child mortality ...
Photocatalytic activity of supported TiO2 nanocrystals
(2013)
In recent times, the occurrence and presence of complex recalcitrant toxic contaminants in water and wastewater is increasing and consequently contributes to the non-availability of clean and safe drinking water. Water ...
Advanced oxidative water treatment process using an electrohydraulic discharge reactor and TiO2 immobilised on nanofibres
(University of Western Cape, 2013)
The aim of this study was to design and build an electrohydraulic discharge reactor in such a way that the synthetic immobilized TiO2 nanophotocatalytic components could be integrated, for the production of active species ...