Browsing Philosophiae Doctor - PhD (Chemistry) by Author "Baker, Priscilla"
Now showing items 1-8 of 8
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Electro-analytical protocols for quantitative assessment of phenols in South African rooibos, green and black tea samples
Abrahams, Dhielnawaaz (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 ... -
Electrochemical impedance modelling of the reactivities of dendrimeric poly(propylene imine) DNA nanobiosensors
Arotiba, Omotayo Ademola (University of the Western Cape, 2008)In this thesis, I present the electrochemical studies of three dendrimeric polypropylene imine (PPI) nanomaterials and their applications as a platform in the development of a novel label free DNA nanobiosensor based on ... -
Hydrogel encapsulated biosensors for the detection of biologically significant vanadium and selenium
Muya, Francis Ntumba (University of the Western Cape, 2017)Vanadium and selenium salts are toxic in large amounts, but trace amounts are necessary for cellular function in many organisms. Exposure to high level of selenium has been linked to delays in early childhood development ... -
Metallic nanoparticles with polymeric shell: A multifunctional platform for application to biosensor
Ngema, Xolani Terrance (University of the Western Cape, 2018)Tuberculosis (TB) is an airborne disease caused by Mycobacterium tuberculosis (MTB) that usually affects the lungs leading to severe coughing, fever and chest pains. It was estimated that over 9.6 million people worldwide ... -
Nanostructured polypyrrole impedimetric sensors for anthropogenic organic pollutants
Akinyeye, Richard Odunayo (University of the Western Cape, 2007)Polypyrrole composites of polyaromatic hydrocarbon sulphonic acids (β–naphthalene sulphonic acid (NSA) and 1, 2-napthaquinone-4-sulphonic acid (NQS)), as well as those of transition metal oxides (tungsten (VI) oxide (WO3) ... -
Quantum dots genosensor for Her2/Neu oncogene - a breast cancer biomarker
Fuku, Xolile Godfrey (University of the Western Cape, 2014)The human epidermal growth factor receptor (HER)-family of receptor tyrosine kinases; human epidermal growth factor receptor 1, human epidermal growth factor receptor 2, human epidermal growth factor receptor 3 and human ... -
Synthesis, electrodynamics and biosensor applications of novel sulphonated polyaniline nanocomposites
Michira, Immaculate Nyambura (University of the Western Cape, 2007)The overall aim of this thesis was to prepare nanostructured more processable heteronuclear sulphonated polyanyline nanocomposites with electroconductive properties suitable for applications in biosensors. The sulphonated ... -
Synthetic strategies for denatured cytochrome-c analogues towards analytical reporting of NOx species
Farao, Al Cerillio (University of the Western Cape, 2019)Nitric oxide (NO) plays a key role as biological messenger in the biological system, however detection and quantification thereof has always posed significant problems. NOx is a principal constituent of air pollutants. ...