${session.getAttribute("locale")} 5 'We pledge to improve the health of our entire community' Wed 31 Aug 2022 14:53:49 SAST ]]> Behavior of palladium nanoparticles in the absence or presence of cobalt tetraaminophthalocyanine for the electrooxidation of hydrazine Wed 27 Oct 2021 22:27:18 SAST ]]> A comparative photophysicochemical study of phthalocyanines encapsulated in core–shell silica nanoparticles Wed 27 Oct 2021 20:17:20 SAST ]]> A highly selective and sensitive pyridylazo-2-naphthol-poly (acrylic acid) functionalized electrospun nanofiber fluorescence “turn-off” chemosensory system for Ni 2+ Wed 25 May 2022 10:31:33 SAST ]]> Being Brave: Writing Environmental Education Research Wed 25 Aug 2021 14:11:44 SAST ]]> Assessment of taste masking of captopril by ion-exchange resins using electronic gustatory system Wed 25 Aug 2021 13:49:46 SAST ]]> Asymmetrical and symmetrical zinc phthalocyanine-cobalt ferrite conjugates embedded in electrospun fibers for dual photocatalytic degradation of azo dyes: Methyl Orange and Orange G Wed 22 Sep 2021 22:44:41 SAST ]]> Assessing the effects of invasive alien species on rural livelihoods: Case examples and a framework from South Africa Wed 21 Jul 2021 13:28:20 SAST ]]> Adoption, use and perception of Australian acacias around the world Wed 21 Jul 2021 10:38:57 SAST ]]> Agroforestry tree products (AFTPs): Targeting poverty reduction and enhanced livelihoods Wed 21 Jul 2021 09:24:52 SAST ]]> 4-Bis (4-aminophenoxy) phenoxy derivitized phthalocyanine conjugated to metallic nanoparticles Wed 20 Oct 2021 12:24:32 SAST ]]> A gold–chitosan composite with low symmetry zinc phthalocyanine for enhanced singlet oxygen generation and improved photodynamic therapy activity Wed 20 Apr 2022 13:36:17 SAST ]]> Aza boron-pyridyl-isoindoline analogues Wed 20 Apr 2022 08:37:18 SAST ]]> A Sn (iv) porphyrin with mitochondria targeting properties for enhanced photodynamic activity against MCF-7 cells Wed 13 Apr 2022 09:15:27 SAST ]]> Asymmetrical zinc (II) phthalocyanines conjugated to metal tungstate nanoparticles for photoinactivation of Staphylococcus aureus Wed 12 Oct 2022 09:22:16 SAST ]]> Applications of polymerized metal tetra-amino phthalocyanines towards hydrogen peroxide detection Wed 10 Aug 2022 14:38:19 SAST ]]> Academic literacy in management education Wed 10 Aug 2022 13:00:20 SAST ]]> A novel dimeric exoglucanase (GH5_38) Wed 10 Aug 2022 05:39:18 SAST ]]> Book Review Quinn, L.(ed.) 2019. Re-imagining Curriculum: Spaces for Disruption Wed 08 Sep 2021 11:13:58 SAST ]]> A comparative study of the photophysicochemical and photodynamic activity properties of meso-4-methylthiophenyl functionalized Sn (IV) tetraarylporphyrins and triarylcorroles Wed 06 Oct 2021 16:00:20 SAST ]]> A comparative study of the singlet oxygen generation capability of a zinc phthalocyanine linked to graphene quantum dots through π-π stacking and covalent conjugation when embedded in asymmetric polymer membranes Wed 06 Oct 2021 10:08:53 SAST ]]> Adsorption of 4-nitrophenol onto Amberlite® IRA-900 modified with metallophthalocyanines NiPcS4 > NiPcSmix > FePcS4 > FePcSmix > CoPcS4. The MPc modified Amberlite® IRA-900 was used repeatedly, following removal of 4-NP by nitric acid, without any significant loss of activity.]]> Wed 03 Aug 2022 13:34:06 SAST ]]> Aluminum corrosion retardation properties of acetamidophenoxy phthalocyanines: Effect of central metal 4 > 3. These compounds exhibited good corrosion inhibition performance as mixed-type corrosion inhibitors. All applied techniques gave results which corroborated.]]> Wed 01 Sep 2021 14:05:42 SAST ]]> Ball-type phthalocyanines and reduced graphene oxide nanoparticles as separate and combined corrosion inhibitors of aluminium in HCl Wed 01 Sep 2021 13:51:56 SAST ]]> Borneol-triarylcorrole hybrids with chiral-optical response and anticancer behaviours Tue 31 Aug 2021 14:27:57 SAST ]]> 'We throw away our books': Students’ reading practices and identities Tue 28 Sep 2021 14:42:03 SAST ]]> (Ferrocenylpyrazolyl) zinc (II) benzoates as catalysts for the ring opening polymerization of ε-caprolactone Tue 26 Oct 2021 12:21:10 SAST ]]> A study of the photophysicochemical and antimicrobial properties of two zinc phthalocyanine–silver nanoparticle conjugates Tue 24 May 2022 15:33:45 SAST ]]> Axial coordination of zinc and silicon phthalocyanines to silver and gold nanoparticles: an investigation of their photophysicochemical and antimicrobial behavior Tue 24 May 2022 15:33:41 SAST ]]> Adsorption and separation of platinum and palladium by polyamine functionalized polystyrene-based beads and nanofibers 0.99. The highest loading capacity of Pt and Pd were 7.4 mg/g and 4.3 mg/g respectively for the nanofiber sorbent material based on ethylenediamine (EDA) while the beads with ethylenediamine (EDA) gave 1.0 mg/g and 0.2 mg/g for Pt and Pd respectively. Metals loaded on the sorbent materials were recovered by using 3% m/v thiourea solution as the eluting agent with quantitative desorption efficiency under the selected experimental conditions. Separation of platinum from palladium was partially achieved by selective stripping of PtCl62- with 0.5 M of NaClO4 in 1.0 M HCl while PdCl42- was eluted with 0.5 M thiourea in 1.0 M HCl. Separation of platinum from iridium and rhodium under 1 M HCl concentration was successful on triethylenetriamine (TETA)-functionalized Merrifield beads. This material (M-TETA) showed selectivity for platinum albeit the low loading capacity.]]> Tue 24 May 2022 15:33:38 SAST ]]> A comparative photophysicochemical study of mono substituted phthalocyanines grafted onto silica nanoparticles Tue 24 May 2022 15:26:43 SAST ]]> Biocompatibility of biomaterials for nanoencapsulation: Current approaches Tue 24 Aug 2021 15:54:45 SAST ]]> A sensitive and reliable method for the detection of lipid peroxidation in biological tissues Tue 24 Aug 2021 15:47:09 SAST ]]> A reflection on the use of case studies as a methodology for social learning research in sub Saharan Africa Tue 22 Nov 2022 10:31:02 SAST ]]> A novel axially palladium (II)-Schiff base complex substituted silicon (IV) phthalocyanine Tue 21 Sep 2021 13:16:03 SAST ]]> A comparative physicochemical study of unsymmetrical indium phthalocyanines in the presence of magnetic nanoparticles or quantum dots Tue 19 Oct 2021 13:15:53 SAST ]]> A comparative study on the sensitive detection of hydroxyl radical using thiol-capped CdTe and CdTe/ZnS quantum dots MPA-CdTe@ZnS > TGA-CdTe > MPA-CdTe QDs. Under the optimum conditions, a limit of detection as low as 8.5 × 10-8 M was obtained using GSH-CdTe@ZnS. The effects of foreign reactive oxygen species and the Fenton reactants and products as possible interferences on the proposed probe were negligible for CdTe@ZnS QDs. Besides, experimental results indicated that CdTe@ZnS QDs were more attractive for the selective recognition of ●OH than CdTe QDs. The mechanistic reaction pathway between the QDs and ●OH is proposed.]]> Tue 17 May 2022 14:45:18 SAST ]]> A comparative study of the effect of different stabilizers on the critical quality attributes of self-assembling nano co-crystals Tue 10 Aug 2021 12:03:34 SAST ]]> A systematic analysis of doctoral publication trends in South Africa Tue 07 Sep 2021 13:37:18 SAST ]]> Applying a student curriculum discourse in higher education teaching and learning Tue 05 Oct 2021 14:19:50 SAST ]]> 'I won't be squeezed into someone else's frame': Stories of supervisor selection Tue 05 Oct 2021 14:15:43 SAST ]]> A2B type copper (III) corroles containing zero-to-five fluorine atoms Tue 03 May 2022 13:32:57 SAST ]]> Adsorptive cathodic stripping voltammetric determination of gold (III) in the presence of yeast mannan Thu 29 Sep 2022 16:41:48 SAST ]]> Applications of lead phthalocyanines embedded in electrospun fibers for the photoinactivation of Escherichia coli in water Thu 28 Oct 2021 12:28:03 SAST ]]> Application of gold and palladium nanoparticles supported on polymelamine microspheres in the oxidation of 1-phenylethanol and some other phenyl substituted alcohols Thu 27 Oct 2022 11:59:28 SAST ]]> Academy of Pharmaceutical Sciences Thu 26 Aug 2021 05:19:54 SAST ]]> A study on the morphology of thin copper films on para-aramid yarns and their influence on the yarn’s electro-conductive and mechanical properties Thu 19 May 2022 21:16:19 SAST ]]> A stability-indicating high performance liquid chromatographic assay for the determination of orlistat in capsules Thu 19 Aug 2021 14:23:28 SAST ]]> Bioequivalence assessment of generic products an innovative South African approach Thu 19 Aug 2021 14:23:27 SAST ]]> An assessment of the efficacy of two lysine microencapsulation techniques to determine the quantitative lysine requirement of the South African abalone, Haliotis midae L  0.05). The failure of the crystalline L-lysine to illicit growth and nutritional responses is discussed.]]> Thu 19 Aug 2021 14:16:26 SAST ]]> Antiparasitic Constituents of Beilschmiedia louisii and Beilschmiedia obscura and Some Semisynthetic Derivatives Thu 18 Nov 2021 15:08:21 SAST ]]> A lover’s shame Thu 18 Aug 2022 14:30:45 SAST ]]> Being moved by a way the world is not Thu 18 Aug 2022 13:49:01 SAST ]]> Art and Ethical Criticism, edited by Garry L. Hagberg Thu 18 Aug 2022 13:46:15 SAST ]]> Azide-derivatized gold nanosphere “clicked” to indium and zinc phthalocyanines for improved nonlinear optical limiting Thu 14 Oct 2021 10:42:20 SAST ]]> Argumentative and trustworthy scholars Thu 11 Aug 2022 12:23:18 SAST ]]> A heavy-atom-free π-extended N-confused porphyrin as a photosensitizer for photodynamic therapy Thu 09 Sep 2021 11:18:21 SAST ]]> A 3, 5-DistyrylBODIPY Dye Functionalized with Boronic Acid Groups for Direct Electrochemical Glucose Sensing Thu 07 Oct 2021 22:25:34 SAST ]]> An investigation into the neuroprotective properties of ibuprofen Thu 01 Sep 2022 09:29:42 SAST ]]> Book Review: Global Governance and the New Wars Sun 23 Oct 2022 22:25:55 SAST ]]> Book Review: From the Outside In Sun 23 Oct 2022 22:24:01 SAST ]]> Book Review: Democratic South Africa's foreign policy Sun 23 Oct 2022 22:21:26 SAST ]]> Book Review: Community of insecurity Sun 23 Oct 2022 22:19:28 SAST ]]> Book Review: A Renegade called Simphiwe Sun 23 Oct 2022 22:17:43 SAST ]]> An inventory of medicinal plants traded on the western boundary of the Kruger National Park, South Africa Sun 18 Jul 2021 12:39:05 SAST ]]> Antiplasmodial Activity of the n-Hexane Extract from Pleurotus ostreatus (Jacq. ex. Fr) P. Kumm n-hexane extract (IC50=25.18 μg/mL). It also showed mild cytotoxicity (IC50>100 μg/mL; selectivity index >4) compared to the reference drug emetine (IC50=0.013 μg/mL). The known sterol, ergostan-5,7,22-trien-3-ol, was isolated and characterized from the extract. Conclusion: This study reporting for the first time the antiplasmodial activity of P. ostreatus revealed its nutraceutical potential in the management of malaria.]]> Sun 12 Dec 2021 15:26:30 SAST ]]> Assessing the electrocatalytic activity of a localized push-pull system in cobalt phthalocyanine/graphene quantum dot hybrids Sun 10 Apr 2022 15:20:16 SAST ]]> Aptamer versus antibody as probes for the impedimetric biosensor for human epidermal growth factor receptor Sun 10 Apr 2022 14:59:52 SAST ]]> at the conference in munich Sun 10 Apr 2022 13:07:42 SAST ]]> Aggregation control of robust water-soluble zinc (II) phthalocyanine-based photosensitizers Sat 07 May 2022 15:30:36 SAST ]]> Application of graphene quantum dots functionalized with thymine and thymine-appended zinc phthalocyanine as novel photoluminescent nanoprobes Sat 04 Dec 2021 12:10:26 SAST ]]> Anti-cancer and anti-trypanosomal properties of alkaloids from the root bark of Zanthoxylum leprieurii Guill and Perr Mon 22 Nov 2021 10:11:57 SAST ]]> An octabrominated Sn (iv) tetraisopropylporphyrin as a photosensitizer dye for singlet oxygen biomedical applications Mon 20 Sep 2021 13:54:51 SAST ]]> Acetophenone substituted phthalocyanines and their graphene quantum dots conjugates as photosensitizers for photodynamic antimicrobial chemotherapy against Staphylococcus aureus Mon 20 Sep 2021 11:28:24 SAST ]]> A comparison of anthropogenic and elephant disturbance on Acacia xanthophloea (fever tree) populations in the Lowveld, South Africa 26 %. The degree of harvesting on private land was relatively low, with the majority of trees having been harvested at rates of less than 10 % of the stem below 2 m. Despite this, ringbarking had occurred (4 %). The basal diameters and heights were significantly lower in the protected population than in the harvested one, suggesting that over time elephant impact was the more severe disturbance. Acacia xanthophloea exhibited high resilience to disturbance, with all the elephant damaged trees and harvested individuals surviving. However, the mean bark thickness measured in local markets (6.3±1.4 mm) was significantly lower than that measured in either the harvested (12.4±1.0 mm) or the KNP (10.3±0.8 mm) populations. As harvesters tend to select the largest individuals in a population to maximise their financial returns, this could mean that smaller individuals are being harvested, and/or bark is not being given sufficient time to grow back after harvesting. Acacia xanthophloea outside protected areas thus need to be monitored and the management improved, preferably in conjunction with the resource users. In addition, traditional healers, those selling medicinal plants and other members of the community need to continue to be encouraged to cultivate this fast growing species.]]> Mon 19 Jul 2021 09:22:41 SAST ]]> Amoxicillin removal from aqueous media using multi-walled carbon nanotubes Mon 16 Aug 2021 14:06:04 SAST ]]> A career in photophysicochemical and electrochemical properties of phthalocyanine: A Linstead Career Award paper Mon 13 Sep 2021 14:42:36 SAST ]]> Beyond just research: Experiences from Southern Africa in developing social learning partnerships for resource conservation initiatives Mon 12 Jul 2021 07:40:04 SAST ]]> A simple quinoline-thiophene Schiff base turn-off chemosensor for Hg2+ detection Mon 11 Apr 2022 12:53:14 SAST ]]> A chiral hemiporphyrazine derivative Mon 09 May 2022 14:05:07 SAST ]]> Allelopathic effects of Lantana camara on indigenous forest species in South Africa Mon 08 Aug 2022 08:30:15 SAST ]]> Aspect and slope as determinants of vegetation composition and soil properties in coastal forest backdunes of Eastern Cape, South Africa Mon 08 Aug 2022 06:44:46 SAST ]]> Abundance, population structure and harvesting selection of two palm species (Hyphaene coriacea and Phoenix reclinata) in Zitundo area, southern Mozambique Mon 08 Aug 2022 06:40:59 SAST ]]> Bushmeat use is widespread but under-researched in rural communities of South Africa Mon 08 Aug 2022 04:42:38 SAST ]]> Abundance and correlates of the Acacia dealbata invasion in the northern Eastern Cape, South Africa Mon 08 Aug 2022 04:41:05 SAST ]]> A spatio-temporal, landscape perspective on Acacia dealbata invasions and broader land use and cover changes in the northern Eastern Cape, South Africa Mon 08 Aug 2022 04:39:41 SAST ]]> Adaptation and validation of a computerized neurocognitive battery in the Xhosa of South Africa 87% had one (or fewer) test missing. Results suggested a similar factor structure to prior PennCNB studies in Western contexts, and expected age and sex effects were apparent. Furthermore, a similar profile of schizophrenia was observed, with neurocognitive deficits most pronounced for executive functions, especially attention, as well as memory, social cognition, and motor speed relative to complex cognition and sensorimotor speed. Conclusions: Results support the feasibility of implementing a culturally adapted computerized neurocognitive battery in sub-Saharan African settings and provide evidence supporting the concurrent validity of the translated instrument. Thus, the PennCNB is implementable on a large scale in non-Western contexts, shows expected factor structure, and can detect cognitive deficits associated with neuropsychiatric disorders. Obtaining valid measures of cognition by nonspecialized proctors is especially suitable in resource-limited settings, where traditional testing is prohibitive. Future work should establish normative standards, test–retest reliability, and sensitivity to treatment.]]> Mon 07 Nov 2022 12:22:00 SAST ]]> Amphiphilic axially modified cationic indium-porphyrins linked to hydrophilic magnetic nanoparticles for photodynamic antimicrobial chemotherapy against gram-negative strain; Escherichia coli Fri 27 Aug 2021 11:51:36 SAST ]]> Asymmetrical zinc (II) phthalocyanines cobalt tungstate nanomaterial conjugates for photodegradation of methylene blue Fri 27 Aug 2021 11:14:56 SAST ]]> 4-Azidoaniline-based electropolymer as a building block for functionalisation of conductive surfaces Fri 20 May 2022 23:25:33 SAST ]]> Bridging through “women’s work" Fri 18 Nov 2022 05:53:22 SAST ]]> Antibacterial effects of Alchornea cordifolia (Schumach. and Thonn.) Müll. Arg extracts and compounds on gastrointestinal, skin, respiratory and urinary tract pathogens Fri 17 Dec 2021 11:19:21 SAST ]]> A colorimetric probe for dopamine based on gold nanoparticles-electrospun nanofibre composite Fri 17 Dec 2021 10:08:42 SAST ]]> 5-Fu inclusion complex capped gold nanoparticles for breast cancer therapy Fri 12 Nov 2021 10:26:44 SAST ]]> A Century of South African Theatre Fri 08 Apr 2022 12:42:25 SAST ]]> A white man in exile Fri 08 Apr 2022 10:44:41 SAST ]]> An artificial neural network approach to predict the effects of formulation and process variables on prednisone release from a multipartite system Fri 06 Aug 2021 11:54:05 SAST ]]> Analytical Detection and Electrocatalysis of Paracetamol in Aqueous Media Using Rare‐Earth Double‐Decker Phthalocyaninato Chelates as Electrochemically Active Materials Fri 05 Nov 2021 12:41:36 SAST ]]> Book Review Growing the next generation of researchers: A handbook for emerging researchers and their mentors, Holness, L Fri 01 Oct 2021 14:36:32 SAST ]]> Betty, Zorg and Me Fri 01 Apr 2022 10:58:17 SAST ]]>