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Now showing items 27373-27392 of 30533
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Synthesis of high-performance superabsorbent glycerol acrylate-cross-linked poly (acrylic acid)
(Springer, 2017)Glycerol acrylate (GA) is synthesised by an acryloylation reaction with acryloyl chloride. An ester was used as a cross-linking agent at varying proportions in the synthesis of poly acrylic acid (PAA). The amount of ... -
Synthesis of high-purity precipitated calcium carbonate during the process of recovery of elemental sulphur from gypsum waste
(Elsevier, 2015)We 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 ... -
Synthesis of highly-confined CdS nanoparticles by copolymerization of acryloylated starch
(Elsevier, 2014)A simple method for the synthesis of highly-confined and monodispersed, polyacryloylated starch-capped CdS nanoparticles (PAS-CdS) is reported. The synthesized nanoparticles exhibited a strong quantum confinement effect ... -
Synthesis of methodxypoly (ethylene glycol) carbonate prodrugs of zidovudine and penetration through human skin in vitro
(Wiley, 2009)The aim of this study was to synthesise a series of novel methoxypoly(ethylene glycol) carbonate prodrugs of the antiretroviral drug zidovudine (azidothymidine, AZT) in an attempt to enhance the physicochemical properties ... -
The synthesis of novel 2-aminobenzothiazinone analogues and their evaluation as adenosine A1/A2A receptor antagonists
(North-West University (South Africa) , Potchefstroom Campus, 2017)Parkinson’s disease (PD) is a neurodegenerative disorder that is characterised by a decrease in dopamine concentration in the striatum due to the degeneration of dopaminergic neurons in the substantia nigra. PD has a ... -
Synthesis of rGO/Zr-MOF composite for hydrogen storage application
(Elsevier, 2017)A composite material consisting of Zr-based metal organic framework (Zr-MOF) and reduced graphene oxide (rGO) was successfully synthesized by an in situ method. The aim of the study was to transfer some of the graphene's ... -
Synthesis of selected cage alkenes and their attempted ring–opening metathesis polymerisation with well–defined ruthenium carbene catalysts
(North-West University, 2011)In this study a number of cage alkenes were synthesised and tested for activity towards ringopening metathesis polymerisation (ROMP) with the commercially available catalysts 55 (Grubbs-I) and 56 (Grubbs-II). The first ... -
Synthesis of templated carbons starting from clay and clay-derived zeolites for hydrogen storage applications
(Wiley, 2015)Clay and its recrystallized zeolitic derivatives were used in this study as templating agents for carbon nanostructured materials. The conventional nanocasting process that involves impregnation with furfural alcohol and ... -
Synthesis, 68Ga-radiolabeling, and preliminary in vivo assessment of a depsipeptide-derived compound as a potential PET/CT infection imaging agent
(Hindawi, 2015)Noninvasive imaging is a powerful tool for early diagnosis and monitoring of various disease processes, such as infections. An alarming shortage of infection-selective radiopharmaceuticals exists for overcoming the ... -
Synthesis, antimalarial activities and cytotoxicities of amino-artemisinin-1,2-disubstituted ferrocene hybrids
(Elsevier, 2018)Artemisinin-ferrocene conjugates incorporating a 1,2-disubstituted ferrocene analogous to that embedded in ferroquine but attached via a piperazine linker to C10 of the artemisinin were prepared from the piperazine artemisinin ... -
Synthesis, antimalarial activity and cytotoxicity of 10-aminoethylether derivatives of artemisinin
(Elsevier, 2012)In this study, a series of 11 10-aminoethylether derivatives of artemisinin were synthesised and their antimalarial activity against both the chloroquine sensitive (D10) and resistant (Dd2) strains of Plasmodium falciparum ... -
Synthesis, biological, and quantum chemical studies of Zn(II) and Ni(II) mixed-ligand complexes derived from N,N-disubstituted dithiocarbamate and benzoic acid
(Hindawi Publishing Corporation, 2016)Some mixed-ligand complexes of Zn(II) and Ni(II) derived from the sodium salt of N-alkyl-N-phenyl dithiocarbamate and benzoic acid have been prepared. The complexes are represented as ZnMDBz, ZnEDBz, NiMDBz, and NiEDBz ... -
Synthesis, characterisation and antimalarial activity of quinoline–pyrimidine hybrids
(North-West University, 2012)The world suffers under the immense threat of malaria with about 1 million people dying and a further 500 million people getting infected and debilitated by the disease each year. It has a negative effect on the economic ... -
Synthesis, characterisation and potential employment of Pt–modified TiO2 photocatalysts towards laser induced H2 production
(North-West University, 2011)The photocatalytic production of H2 from water as well as from a 1:1 methanol:water solution employing pre–treated TiO2 and various Pt–TiO2 photocatalysts was studied by using an Nd:YAG laser as irradiation source. The ... -
Synthesis, characterisation and properties of fulvic acid, derived from a carbohydrate
(North-West University (South-Africa), 2019)Introduction: Human and animal health is constantly threatened by pathogenic microbes and the emergence of bacteria resistant to standard medicinal interventions has escalated the search for new and innovative pharmaceutical ... -
Synthesis, characterisation, antimicrobial studies and corrosion inhibition potential of 1,8-dimethyl-1,3,6,8,10,13- Hexaazacyclotetradecane
(2014)The synthesis of 1 ,8-dimethyl- 1,3,6,8,10,1 3-hexaazacyclotetradecane ligand was carried out by the demetallation of the prepared 1,8-dimethyl-1,3,6,8,10,13.. hexaazacyclotetradecanenickel(Il) complex. The characterization ... -
Synthesis, characterization and antimalarial activity of quinoline-pyrimidine hybrids
(Elsevier, 2013)The aim of this study was to synthesize a series of quinoline–pyrimidine hybrids and to evaluate their in vitro antimalarial activity as well as cytotoxicity. The hybrids were brought about in a two-step nucleophilic s ... -
Synthesis, characterization and antimicrobial properties of some mixed ligand complexes of Zn(II) dithiocarbamate with different N-donor ligands
(Elsevier, 2016)In this study, adducts of Zn(II) dithiocarbamates containing different N-donor ligands (pyridine, 2,2′-bipyridine and 1,10-phenanthroline) have been synthesized. The parent dithiocarbamate complex comprise N-methyl-N-phenyl ... -
Synthesis, characterization and antimicrobial studies of organotin(IV) complexes of N-methyl-N-phenyldithiocarbamate
(Elsevier, 2018)Organotin(IV) dithiocarbamate complexes have shown a large spectrum of biological activities, which includes antioxidants, anti-inflammatory, antimicrobial, antituberculosis, anticancer and antiviral. In this report, ... -
Synthesis, characterization and corrosion inhibition potential of two novel Schiff bases on mild steel in acidic medium
(Royal Society of Chemistry, 2017)The present study deals with the synthesis of two novel Schiff bases (SBs) namely; 5-((4-chloro-3-nitrophenylimino)methyl)-2-methoxyphenol (SB-1) and 2-(4-hydroxy-3-methoxybenzylidineamino)-4-nitrophenol (SB-2) using a ...
