• 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; Sinha Ray, Suprakas; 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 ...
• Beneficiation opportunities for bark from South African Grown Eucalyptus grandis and Pinus patula 

  Moodley, RS; Andrew, Jerome E; Sithole, Bruce (NISCAIR-CSIR, India, 2018-03)

  Bark, a major waste residue in the forestry, timber, pulp and paper industry has been shown to be a potential source of valuable chemicals. The chemical composition of bark extracted from South African plantation grown E. ...
• Scientific assessments: Matching the process to the problem 

  Scholes, RJ; Schreiner, G; Snyman-Van der Walt, L (AOSIS Publishing, 2017-01)

  Background: The science–policy interface process – known as a ‘scientific assessment’ – has risen to prominence in the past few decades. Complex assessments are appropriate for issues which are both technically complicated, ...
• Using social media information in transport- and urban planning in South Africa 

  Van Heerden, Quentin (Smart and Sustainable Built Environment (SASBE), 2015-12)

  Transport- and urban planning often involves the use of large-scale simulation modelling with data sources that include, among others, the national census, the National Household and Travel Survey (NHTS) as well as trip ...
• A microfluidic device for rapid screening of E. coli O157:H7 based on IFAST and ATP bioluminescence assay for water analysis 

  Ngamsom, B; Truyts, Alma E; Fourie, Louis J; Kumar, Shavon; Iles, A; Moodley, Klariska; Land, Kevin J; Pamme, N; Tarn, MD (Wiley, 2017-08)

  We present a simple microfluidic system for rapid screening of Escherichia coli (E. coli) O157:H7 employing the specificity of immunomagnetic separation (IMS) via immiscible filtration assisted by surface tension (IFAST), ...
• Phototransfection of mouse embryonic stem cells with plasmid DNA using femtosecond laser pulses 

  Thobakgale, Setumo L; Manoto, Sello L; Ombinda-Lemboumba, Saturnin; Maaza, M; Mthunzi-Kufa, Patience (SPIE, 2017-02)

  Cellular manipulation by delivery of molecules into cells has been applied extensively in tissue engineering research for medical applications. The different molecular delivery techniques used range from viral and chemical ...
• The effects of mutating Tyr9 and Arg15 on the structure, stability, conformational dynamics and mechanism of GSTA3-3 

  Robertson, GJ; Stoychev, Stoyan H; Sayed, Y; Achilonu, I; Dirr, HW (Elsevier, 2017-03)

  Glutathione S-transferase A3-3 is the most catalytically efficient steroid isomerase enzyme known in humans, transforming Δ5-androstene-3-17-dione into Δ4-androstene-3-17-dione. GSTA3-3 catalyzes this reaction with ten-fold ...
• A one-pot laccase-catalysed synthesis of coumestan derivatives and their anticancer activity 

  Qwebani-Ogunleye, Tozama; Kolesnikova, Natalia I; Steenkamp, Paul A; De Koning, CB; Brady, D; Wellington, Kevin W (Elsevier, 2016-12)

  Suberase®, a commercial laccase from Novozymes, was used to catalyse the synthesis of coumestans. The yields, in some cases, were similar to or better than that obtained by other enzymatic, chemical or electrochemical ...
• Bio-synthesis of silver nanoparticles using agroforestry residue and their catalytic degradation for sustainable waste management 

  Anand, K; Kaviyarasu, K; Muniyasamy, Sudhakar; Roopan, SM; Gengan, RM; Chuturgoon, AA (Springer Verlag, 2017-07)

  The sustainable synthesis of nanoparticles provides an eco-friendly and interesting approach in the domain of clean synthesis and nanobiotechnology. The in vitro synthesis of silver nanoparticles from the aqueous extract ...
• Adsorption of oxyanions of As, B, Cr, Mo and Se from coal fly ash leachates using Al3+/Fe3+modified bentonite clay 

  Vhahangwele, M (University of Venda, 2013-01)

  South African coal-fired power stations rely on the use of low grade bituminous coal for electricity generation. During coal combustion processes, this type of coal generates large volume of waste materials which include ...
• Evaluation of mechanical properties of calotropis giganteastem fiber-rein forced composite material 

  Aruna, M; Muniyasamy, Sudhakar (2016-12)

  The awareness in natural fiber reinforced composite materials is rapidly growing both in terms of industrial applications and fundamental research. Natural fibers have recently become attractive to researchers, engineers ...
• A bibliometric analysis to illustrate the role of an embedded research capability in South African National Parks 

  Van Wilgen, BW; Boshoff, N; Smit, IPJ; Solano-Fernandez, S; Van der Walt, Luanita (Springer Verlag, 2016-04)

  We conducted a bibliometric analysis of research in or about South African National Parks, published between 2003 and 2013. Our goal was to identify the major research topics, and to examine the role of in-house (“embedded”) ...

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