Author:Mathekga, BSP; Nxumalo, Precious Z; Thimiri Govindaraj, Deepak BDate:Jan 2022In this book chapter, we elaborate on the state-of-the-art technology developments in high throughput screening, microfluidics and nanofluidics. This book chapter further elaborated on the application of microfluidics and nanofluidics for ...Read more
Author:Moodley, G; Bok, C; Chetty, DDate:Mar 2015The search for a suitable replacement to conventionally used fossil fuels as a feedstock for diesel production, has been gaining momentum over the recent years. The use of first generation feed-stocks such as edible and non-edible plant oils ...Read more
Author:Clasen, E; Land, Kevin J; Joubert, T-HDate:Sep 2016The presence of Escherichia coli (E. coli) is a commonly used indicator micro-organism to determine whether water is safe for human consumption. This paper discusses the design of a micro-incubator that can be applied to concentrate bacteria ...Read more
Author:Barros, E; Van Staden, C; Lezar, SDate:May 2009Fast-growing Eucalyptus grandis trees are one of the most efficient producers of wood in South Africa. The most serious problem affecting the quality and yield of solid wood products is the occurrence of end splitting in logs. Selection of ...Read more
Author:Staebe, K; Botes, M; Madlala, Tebogo E; Oberholster, Paul J; Cloete, TEDate:Dec 2018Freshwater resources in semi-arid countries are under constant threat from pollution. One of the major pollutants is acid mine drainage (AMD), which not only lowers the pH of the water, but contains high sulphuric acid and high metal ...Read more
Author:Smit, Michelle A; Akhalwaya, Imraan; Rust, FC; Ramdas, VesharaDate:Jul 2022The growing concern over climate change has led the drive for the development of alternative building materials in several industries, including road construction. Bio-based construction, using Microbial Induced Calcium Carbonate Precipitation ...Read more
Author:Thuku, RN; Brady, D; Benedik, MJ; Sewell, BTDate:Mar 2009The nitrilases are enzymes that convert nitriles to the corresponding acid and ammonia. They are members of a superfamily, which includes amidases and occur in both prokaryotes and eukaryotes. The superfamily is characterized by having a ...Read more
Author:Kfir, R; Franck, MDate:1995In this study the source of microbial pollution to a tidal pool was investigated. Both adjacent seawater which could contribute to possible faecal pollution and potential direct bather pollution were studied. The microbial quality of the ...Read more
Author:Le Rouw, Wouter J; Schaefer, Lisa M; Genthe, BettinaDate:Oct 2012A quantitative microbial risk assessment of water in the upper Olifants River catchment showed that sections of the catchment are highly contaminated with faecal indicator bacteria and pathogenic micro-organisms and that the polluted waters ...Read more
Author:Le Rouw, Wouter J; Schaefer, Lisa M; Genthe, BettinaDate:Sep 2012The Olifants river has been described as one of the most environmentally polluted rivers in Southern Africa, particularly in the upper catchment. Untreated water from the catchment may be used for many purposes including irrigation, recreation, ...Read more
Author:Nice, Jako ADate:Jul 2020Humans spend up to 90% of their time in indoor built environments. There is recognition and academic consensus that architectural design impacts both the sources of the microbial communities, (via activity and mix of occupancy), and the ...Read more
Author:Nchabeleng, T; Cheng, Po-Hsun; Oberholster, Paul J; Botha, A-M; Smit, WJ; Luus-Powell, WJDate:Dec 2014The effects of a decomposing cyanobacteria bloom on water quality and the accumulation of microcystin-LR equivalent toxin in fish at Loskop Dam were studied in May 2012. Enzyme-linked immunosorbent assay [ELISA] was used to confirm the presence ...Read more
Author:Land, KJ; Mbanjwa, M; Korvink, JGDate:Sep 2014We present a novel use for channel structures in microfluidic devices, whereby two two-phase emulsions, one created on-chip, the other off-chip, are rapidly mixed with each other in order to allow for the coalescence of one emulsion with the ...Read more
Author:Potgieter, S; Land, K; Kotze, L; Sparrow, RDate:2010Microfluidics is a multi-disciplinary field that deals with the behaviour, control and manipulation of fluids constrained to sub-millilitre volumes. It is proving to be a useful tool for biological studies, affording advantages such as reduced ...Read more
Author:Potgieter, S; Land, KJ; Sparrow, RW; Coetzee, RDate:Oct 2008Microfluidics is a multi-disciplinary field that deals with the behaviour, control and manipulation of sub-millilitre fluid volumes. It is proving to be a useful tool for biological studies, affording advantages such as reduced cost, faster ...Read more
Author:Popoola, API; Ochonogor, OF; Abdulwahab, M; Pityana, Sisa L; Meacock, CDate:Dec 2012Surface modification of titanium alloy (Ti-6Al-4V) was made using a Rofin Sinar 4 kW Nd: YAG laser. A laser multi-track 50% overlapping process was employed to produce Zr and Zr-TiC metal matrix composite (MMC) coatings on Ti6Al4V substrate. ...Read more
Author:Labuschagne, Philip W; Naicker, B; Kalombo, LonjiDate:Feb 2016The purpose of this investigation was to determine whether shellac, a naturally occurring material with enteric properties, could be processed in supercritical CO2 (sc-CO2) using the particles from gas saturated solution (PGSS) process and ...Read more