• Thermal-chemical and biodegradation behaviour of alginic acid treated flax fibres/ poly(hydroxybutyrate-co-valerate) PHBV green composites in compost medium 

  Muniyasamy, Sudhakar; Ofosu, Osei; Thulasinathan, B; Rajan, AST; Ramu, SM; Soorangkattan, S; Muthuramalingam, JB; Alagarsamy, A (Elsevier, 2019-11)

  In this study, thermal-chemical and biodegradation behaviour of green composites based on flax fibres untreated and treated with alginic acid treated, and poly hydroxybutyrate-co-valerate (PHBV) were studied under composting ...
• UPLC-MS profiling, identification of major peaks and comparison of Harpagophytum procumbens extracts from different locations 

  Steenkamp, Paul A; Steenkamp, Lucia H (Elsevier Science BV, 2019-08)

  Organic extracts (methanol:acetonitrile (1:1 v/v)) of the dried and grounded secondary tubers of Devil's Claw, Harpagophytum procumbens (Burch.) DC. ex Meisn., produced extracts rich in iridoid glucosides. An UPLC-MS ...
• Biodiesel production from Ulva linza, Ulva tubulosa, Ulva fasciata, Ulva rigida, Ulva reticulate by using Mn2ZnO4 heterogenous nanocatalysts 

  Sivaprakasha, G; Kohanrasua, M; Ananthia, V; Jothibasu, M; Duc Nguyend, D; Ravindran, B; Chang, SW; Nguyen-Tri, P; Tran, N; Muniyasamy, Sudhakar (Elsevier, 2019-11)

  Seaweeds are found abundance in most seashores. They contain relatively high lipid contents and are exhibiting medicinal properties. The present work focused on the use of seaweed species Ulva linza, U. tubulosa, U. fasciata, ...
• Winter and summer distributions of Copper, Zinc and Nickel along the International GEOTRACES Section GIPY05: Insights into deep winter mixing 

  Cloete, R; Loock, JC; Mtshali, Thato; Fietz, S; Roychoudhury, AN (Elsevier, 2019-04)

  First measurements of labile dissolved copper (LdCu) and dissolved zinc (dZn) and nickel (dNi) in the Atlantic sector of the Southern Ocean in winter are compared with summer data at reoccupied stations in order to better ...
• RDSMS – A South African research and development survey management system 

  Engelbrecht, Louis; Featherstone, Coral; Matyila, Pule M; Du Toit, Kirsten; Fogwill, Thomas A; Alberts, Ronell (IEEE, 2018-05)

  Annual R&D surveys are conducted by the South African Centre for Science, Technology and Innovation Indicators (CeSTII). To improve the current system supporting their business processes for the completion of surveys, the ...
• The forkhead domain hinge-loop plays a pivotal role in DNA binding and transcriptional activity of FOXP2 

  Morris, G; Stoychev, Stoyan H; Naicker, Pravin; Dirr, HW; Fanucchi, S (De Gruyter, 2018-07)

  Forkhead box (FOX) proteins are a ubiquitously expressed family of transcription factors that regulate the development and differentiation of a wide range of tissues in animals. The FOXP subfamily members are the only known ...
• Isotopic evidence for nitrification in the Antarctic winter mixed layer 

  Smart, SM; Fawcett, SE; Thomalla, Sandy J; Weigand, MA; Reason, CJC; Sigman, DM (AGU Publications, 2015-04)

  We report wintertime nitrogen and oxygen isotope ratios (δ15N and δ18O) of seawater nitrate in the Southern Ocean south of Africa. Depth profile and underway surface samples collected in July 2012 extend from the subtropics ...
• The effect of g-C3N4 materials on Pb(II) and Cd(II) detection using disposable screen-printed sensors 

  Zheng, Haitao; Ntuli, Letta; Mbanjwa, Mesuli; Palaniyandy, Nithyadharsen; Smith, Suzanne; Modibedi, Remegia M; Land, Kevin J; Mathe, Mahlanyane K (Springer, 2018-12)

  The disposable electrochemical sensors were designed and fabricated onto a photo paper substrate in-house. We report a first case use of g-C3N4, which is an emerging material as the most stable carbon-like polymer, explored ...
• Profiling of botanical extracts for authentication, detection of adulteration and quality control using UPLC-QTOF-MS 

  Steenkamp, Paul A; Steenkamp, Lucia H; Mancama, Dalubuhle T (Springer, 2018-01)

  Herbs and plant extracts are very popular and are being used by all cultures for healthcare and as food supplements. The correct identification of the required plant material is vital for formulation of final formulas for ...
• Multi-residue method for the determination of selected veterinary pharmaceutical residues in surface water around Livestock Agricultural farms 

  Fatoki, OS; Opeolu, BO; Genthe, Bettina; Olatunji, OS (Elsevier, 2018-12)

  A multi-residue method for the determination of the occurrence and prevalence levels of selected veterinary pharmaceutical residues in surface water was developed on a high performance liquid chromatography coupled to ...
• Chaining the building blocks for blockchain implementations in South Africa's public sector 

  Van Heerden, Quintin; Steenkamp, AJ; Van Heerden, M (SAIIE, 2018-10)

  The emergence of the 4th industrial revolution has brought about several technological advancements in which blockchain fulfils a prominent role. To most people, the notion of blockchain is merely synonymous with the popular ...
• Screening of potential bioremediation enzymes from hot spring bacteria using conventional plate assays and liquid chromatography - Tandem mass spectrometry (Lc-Ms/Ms) 

  Jardine, JL; Stoychev, Stoyan H; Mavumengwana, V; Ubomba-Jaswa, E (2018-07)

  The search for an eco-friendly, non-toxic, economical and efficient means of cleaning water through bioremediation is not only more favourable but critical to maintaining water quality globally especially in water-scarce ...
• A geospatial modelling approach to simulating the impact of future planning policies on the City of Tshwane 

  Ludick, C; Le Roux, Alize (2018-09)

  Many researchers believe that no matter what path a country takes towards economic development the end result will lead to urbanisation. Rapid urban growth will have a major influence on the social, economic and political ...
• Investigating sales and production volumes of gold, PGM, iron ore and manganese using a Bayesian change point detection approach 

  Ingham, M; Das, Sonali; Yadavalli, S (UNISA, 2017-10)

  This paper identified change points in the production volumes and sales of various Industrial Metals in South Africa from the period 2003 – 2016. The socio-economic environment in which the mining sector operates is ...
• Ent-abietane diterpenoids from Suregada zanzibariensis Baill. (Euphorbiaceae), their cytotoxic and anticancer properties 

  Mangisa, M; Tembu, VJ; Fouché, Gerda; Nthambeleni, Rudzani; Peter, Xolani K; Langat, MK (Taylor & Francis, 2018-05)

  The stem bark extract of Suregada zanzibariensis afforded a previously undescribed ent-abietane diterpenoid trivially named mangiolide (1) and a known jolkinolide B (2) via anticancer bioassay-guided fractionation. The ...
• Synthesis and characterization of alginate beads encapsulated zinc oxide nanoparticles for bacteria disinfection in water 

  Motshekga, Sarah C; Ray, Suprakas S; Maity, Arjun (Elsevier, 2018-02)

  The use of polymer nanocomposites as novel materials for water remediation has emerged as a promising alternative for disinfection of bacteria contaminated water. Sodium alginate, a natural biopolymer has been investigated ...
• Challenges and opportunities for biological mass spectrometry core facilities in the developing world 

  Bell, L; Calder, B; Hiller, R; Klein, A; Soares, NC; Stoychev, Stoyan H; Vorster, BC; Tabb, DL (Association of Biomolecular Resource Facilities, 2018-04)

  The developing world is seeing rapid growth in the availability of biological mass spectrometry (MS), particularly through core facilities. As proteomics and metabolomics becomes locally feasible for investigators in these ...
• Pressurized hot water extraction and chemometric fingerprinting of flavonoids from Bidens pilosa by UPLC-tandem mass spectrometry 

  Gbashi, S; Njobeh, P; Steenkamp, Paul A; Madala, N (Taylor & Francis, 2017)

  The need for greener extraction procedures that are quick and efficient has prompted the evolution of pressurized hot water extraction (PHWE). Here, the extraction of flavonoids from Bidens pilosa was demonstrated using ...
• Variation in pharmacologically potent rutinoside-bearing flavonoids amongst twelve Moringa oleifera Lam. cultivars 

  Makita, C; Madala, NE; Cukrowska, A; Abdelgadir, H; Chimuka, L; Steenkamp, Paul A; Ndhlala, AR (Elsevier, 2017-09)

  Recent evidence has shown that consumption of plants rich in phenolic compounds has health-promoting benefits. Amongst these plants, include Moringa oleifera Lam. (Moringaceae) which has gained significant attention due ...
• Untargeted metabolomics analysis reveals dynamic changes in azelaic acid- and salicylic acid derivatives in LPS-treated Nicotiana tabacum cells 

  Mhlongo, MI; Tugizimana, F; Piater, LA; Steenkamp, Paul A; Madala, NE; Dubery, IA (Elsevier, 2017-01)

  To counteract biotic stress factors, plants employ multilayered defense mechanisms responsive to pathogen-derived elicitor molecules, and regulated by different phytohormones and signaling molecules. Here, lipopolysaccharide ...

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