Department of Chemistry and Polymer Science
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A calix[4]arene based boronic acid catalyst for amide bond formation : proof of principle study
(ARKAT USA, 2018-06-25)ENGLISH ABSTRACT: A calix[4]arene boronic acid was synthesized and tested for catalysis in amide formation. The results were positive and paved the way for future designs, even though protodeboronation was observed under ... -
The development and refinement of a questionnaire on the investigation of students' experience of first-year chemistry practicals
(University of KwaZulu-Natal, 2013)This article reports on the development and refinement of a questionnaire for first-year Chemistry students. Three subscales were probed, namely affective attitudes, perceptions towards tutor effectiveness and outcomes achieved. -
Critical self-assembly concentration of bolaamphiphilic peptides andpeptide hybrids determined by fluorescence measurements
(University of KwaZulu-Natal, 2013)The study of the self-assembly properties of peptides and proteins is important for the understanding of molecular recognition processes and for the rational design of functional biomaterials. Novel bolaamphiphilic peptides ... -
Coordinated autophagy modulation overcomes glioblastoma chemoresistance through disruption of mitochondrial bioenergetics
(Nature Research, 2018-07-09)Glioblastoma Multiforme (GBM) is known to be one of the most malignant and aggressive forms of brain cancer due to its resistance to chemotherapy. Recently, GBM was found to not only utilise both oxidative phosphorylation ... -
Modification and incorporation of chitosan nanoparticles into different polymer matrices
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: Chitosan is an abundantly found polysaccharide with known antimicrobial, biodegradable and nontoxic properties. Chitosan has been used in drug delivery systems and as partial components in food packaging ... -
The effect of controlled rheology on the evolution of chemical composition distribution of commercial Heterophasic Ethylene Propylene Copolymers (HEPCs)
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: The vis-breaking of heterophasic ethylene-propylene copolymers (HEPCs) is an important industrial process. While the changes in molar mass properties are easy to track using hightemperature size exclusion ... -
Computational investigation of Au...H hydrogen bonds involving neutral AuI N-heterocyclic carbene complexes and amphiprotic binary hydrides
(Springer, 2019-04-26)In this computational study we investigate the ability of various neutral R-AuI-NHC (NHC = N-heterocyclic carbene) complexes [R = H, CH3, Cl, OH] to form hydrogen bonds with the amphiprotic binary hydrides NH3, H2O and HF. ... -
Steric and electronic effects in gold N-heterocyclic carbene complexes revealed by computational analysis
(Wiley, 2019-04-29)A computational analysis of a series of cationic and neutral gold imidazolylidene and benzimidizolylidene complexes is reported. The Bond Dissociation Energies of the various ligands in the complexes calculated at the ... -
Development of advanced methods for the analysis of star and highly branched polymers
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: Branched polymers are a unique class of materials with broad applications in fields such as automobile parts, textiles, lubricants, packaging, medicine, construction, soil binders in agriculture, and so ... -
Chemical constituents isolated from Lycium shawii and their chemotaxonomic significance
(ACG Publications, 2017-11-15)ENGLISH ABSTRACT: Phytochemical investigation of Lycium shawii Roem. & Schult provided fourteen compounds, including lyciumate (1), dehydrocostus lactone (2), costunolide (3), catechin (4), lyciumaside (5), emodin (6), ... -
Silk-cellulose nanofiber membranes for application in water treatment
(Stellenbosch : Stellenbosch University, 2019-12)ENGLISH ABSTRACT: Electrospinning (ES) of biopolymers down to nanoscale size has received considerable interest in efforts to address specific millennia problems, which include materials for application in medical and water ... -
Synthesis of E-caprolactone based antimicrobial biodegradable scaffolds
(Stellenbosch : Stellenbosch University, 2019-12)ENGLISH ABSTRACT: Antimicrobial and biodegradable fibers are essential in medical applications, especially those in direct contact with the skin like wound dressings. It is ideal to have wound dressings that can eliminate ... -
Chitin and chitosan nanomaterials for efficient removal of heavy metals from waste water
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH ABSTRACT: Heavy metal contamination is a serious problem that is responsible for water pollution that can cause serious health issues to animals and humans. The problem is being addressed by various researchers ... -
Flexible Co(II) Metal-Organic Frameworks with Mixed Ligands under Controlled Pressure
(Stellenbosch : Stellenbosch University, 2019-12)ENGLISH ABSTRACT: A number of flexible metal-organic frameworks (MOFs) are shown to undergo phase changes under CO2 gas pressure and, in two cases, the mechanisms of these changes have been elucidated using computational ... -
A review on recent syntheses of Amaryllidaceae alkaloids and isocarbostyrils (time period mid-2016 to 2017)
(Sage Publishing, 2018)Alkaloids from the Amaryllidaceae have become valuable targets for synthetic organic chemists, mainly due to their wide variety of bioactivities and potential for utilization in medicinal chemistry ventures. In addition, ... -
Removal of organic pollutant (pyrene) from aqueous solution using coordination polymer of [Cu(Pic)2(H2O)2]·H2O (CP-1) as adsorbent
(Springer, 2019-09-24)ENGLISH ABSTRACT: Adsorptive removal of organic pollutant (pyrene) was carried out using coordination polymer [Cu(Pic)2(H2O)2]·H2O (CP-1) (where “Pic” represents picolinic acid), which was prepared from copper acetate ... -
Thermal field-flow fractionation and the advanced analysis of complex polymers
(Stellenbosch : Stellenbosch University, 2019-12)ENGLISH ABSTRACT: Please refer to full text for abstract -
Hydrocarbon oxidations using metal-containing polypropylene-imine dendrimers
(Stellenbosch : Stellenbosch University, 2019-12)ENGLISH ABSTRACT: The production of oxygenates from hydrocarbon feedstocks is an important industrial process. However, this process suffers from various weaknesses such as poor catalytic activity, chemoselectivity, and ... -
Visualizing structural transformation and guest binding in a flexible metal-organic framework under high pressure and room temperature
(American Chemical Society, 2018)ENGLISH ABSTRACT: Understanding the effect of gas molecules on the framework structures upon gas sorption in porous materials is highly desirable for the development of gas storage and separation technologies. However, ... -
Synthetic routes towards triazole cannabidiol analogues and substituted cycloparaphenylenes
(Stellenbosch : Stellenbosch University, 2019-12)ENGLISH ABSTRACT: Cancer is the leading cause of death worldwide and current treatment options often lead to painful and unpleasant side-effects. The active constituents isolated from medicinal plants have been successfully ...
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