Author:Mabank, T; Alexandre, Kabamba B; Pelly, SC; Green, IR; Van Otterlo, WALDate:Jul 20196-Methoxytetrahydroisoquinoline hydrochloride was converted into four small libraries of substituted ureas, thioureas, sulfonamides and N-aryls, using the tetrahydroisoquinoline nitrogen as the scaffold-linking atom. Some of the compounds ...Read more
Author:Van der Westhuyzen, Christiaan W; Parkinson, CJDate:2005Alpha-Santonin 3 was successfully converted into a biologically active compound 5b containing an endoperoxide group through a photo-oxygenation approach as a single isomer. It was found that the singlet oxygen afforded the isomer produced by ...Read more
Author:Rajasekhar Pullabhotla, VSR; Scriba, Manfred R; Revaprasadu, NDate:Feb 2011A cadmium tetrahydroisoquinoline dithiocarbamate (DTC) complex has been used as single-source precursor for the synthesis of highly faceted hexadecylamine (HDA) capped CdS nanoparticles. Hexagonal and close to cubic shaped particles with ...Read more
Author:Van Zyl, A; Thackeray, MM; Duncan, GK; Kingon, AI; Heckroodt, RODate:Feb 1993Two aluminium oxyhydroxides, boehmite and pseudoboehmite, and two aluminium hydroxides, bayerite and gibbsite, have been investigated as precursors for the synthesis of the solid electrolyte, beta alumina. Reaction pathways and products have ...Read more
Author:Van Wyk, LT; Neyt, Nicole C; Jugmohan, Jaimee; Panayides, Jenny-Lee; Riley, DLDate:Jan 2024Globally, major depressive disorders are a leading cause of disconsolateness affecting more than 300 million individuals. Bupropion is a unique dopamine-norepinephrine reuptake inhibitor (DNRI) commonly utilized in the treatment of depression, ...Read more
Author:Mittal, H; Maity, Arjun; Ray, SSDate:Nov 2015The aim of this work was to study the adsorption behavior of the nanosilica-containing hydrogel nanocomposite of gum karaya grafted with poly(acrylic acid-acrylamide) (GK-cl-P(AA-co-AAM)) in the adsorption of methylene blue (MB) from aqueous ...Read more
Author:Masindi, Vhahangwele; Gitari, MW; Tutu, H; De Beer, MorrisDate:Dec 2015The primary aim of this study was to synthesize cryptocrystalline magnesite–bentonite clay composite by mechanochemical activation and evaluate its usability as low cost adsorbent for neutralization and attenuation of inorganic contaminants ...Read more
Author:Mavundla, SE; Malgas, GF; Motaung, DE; Iwuoha, EIDate:May 2012ZnO with a “flower-like” morphology was synthesized using a simple microwave assisted hydrothermal method and used as an acceptor material in hybrid solar cells. X-Ray diffraction and Raman Spectroscopy confirmed the formation of a highly ...Read more
Author:De Beer, Morris; Doucet, FJ; Maree, JP; Liebenberg, LDate:Aug 2015We recently showed that the production of elemental sulphur and calcium carbonate (CaCO3) from gypsum waste by thermally reducing the waste into calcium sulphide (CaS) followed by its direct aqueous carbonation yielded low-grade carbonate ...Read more
Author:Thackeray, MM; Rossouw, MHDate:Dec 1994The synthesis of lithium-manganese-oxide spinels by reaction of Li2CO3 and MnCO3 in air and under nitrogen to T(max) = 600°C has been investigated by thermogravimetric analysis and differential scanning calorimetry. When the reaction is ...Read more
Author:Akinwekomi, V; Maree, JP; Zvinowanda, C; Masindi, VhahangweleDate:Jun 2017In recent decades, much research has been paying attention on the treatment and desalination of acid mine drainage (AMD) with minimal focus on the recovery of minerals from the resultant residues. Solid sludge produced after the treatment ...Read more
Author:Dhonge, BP; Mathews, T; Tyagi, AKDate:Sep 2014Meso-crystalline alumina (Al2O3) coatings having a nano-platelet microstructure were synthesized using an indigenously designed combustion chemical vapor deposition facility. Aluminum acetylacetonate of 0.001 to 0.005 M concentrations dissolved ...Read more
Author:Masindi, Vhahangwele; Gitari, WM; Pindihama, KGDate:Jul 2015In the present study, nanocomposite of cryptocrystalline magnesite-bentonite clay was used as a novel technology for removal of phosphates from municipal effluents. Vibratory ball miller was used for fabrication of the composite. Removal of ...Read more
Author:Makgwane, Peter R; Ray, Suprakas SDate:Feb 2014The development of controlled synthesis protocols of nanostructured materials with tailored particle size and shape has been a significant research area in nanoscience and nanotechnology. Much innovative research efforts had been focused on ...Read more
Author:Hajra, P; Sanjib, S; Mandal, H; Sariket, D; Maity, Arjun; Kundu, S; Bhattacharya, CDate:Mar 2019The present paper reports the effect of nitrogen modification on photoelectrochemical (PEC) water oxidation behavior of Bi2O3 semiconductor thin film. The semiconductor particles were synthesized via hydrothermal route using Bi(NO3)3 as a ...Read more
Author:Fashedemi, OO; Julies, B; Ozoemena, KIDate:Jan 2013We report a novel microwave-induced fast and efficient synthesis of sub-10 nm sized palladium-decorated FeCo@Fe core–shell nanoparticles (ca. 3–7 nm) from a large-sized FeCo@Fe (0.21–1.5 µm) precursor, suggesting ‘top-down’ nanosizing. The ...Read more
Author:Motsoeneng, RG; Modibedi, Remegia M; Mathe, Mahlanyane K; Khotseng, LE; Ozoemena, KIDate:Sep 2015Surface-limited redox replacement reactions using the electrochemical atomic layer deposition (EC-ALD) technique were used to synthesize PdPt bimetallic electrocatalysts on carbon paper substrate. Electrocatalysts having different Pd:Pt ratio ...Read more
Author:Nombona, N; Maduray, K; Antunes, E; Karsten, A; Nyokong, TDate:Feb 2012The efficiency of [2,9,17,23-tetrakis-(1,6-hexanedithiol)phthalocyaninato]zinc(II) as a photodynamic therapy (PDT) agent was investigated. This compound belongs to the second generation of photosensitizers currently tested for the cellular ...Read more