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Browsing by Author "Sikhwivhilu, L"

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Effects of engineered nanoparticles on survival, reproduction, and behaviour of freshwater snail, Physa acuta (Draparnaud, 1805)

Author: Musee, N ; Oberholster, Paul J ; Sikhwivhilu, L ; Botha, AM Date: 2010 Increasing uses of engineered nanoparticles (ENPs) in commercial products and industrial applications has eventually resulted to their releases into atmospheric, terrestrial, and aquatic environments. However, knowledge gaps in ENPs toxicity, ... Read more
How water chemistry determines the risk of metallic engineered nanoparticles in aquatic ecosystems: nAg and nZnO case study

Author: Thwala, Melusi ; Musee, N ; Sikhwivhilu, L ; Wepener, V Date: Sep 2013 The dispersion of nAg and nZnO engineered nanoparticles (ENPs) in water was investigated through the dissolution and agglomeration analysis over a 14 days exposure period. Before testing, the ENPs were in the nanoscale: 40-60 and 10-130 nm ... Read more
Microwave synthesis of Titanium Dioxide nanotubes for use in water treatment

Author: Sikhwivhilu, L ; Ray, Suprakas S Date: 01 Sep 2010 Synthesis and engineering of the nanostructured semiconductors based on metal oxides have received considerable attention due to their unique physical and chemical properties, and their potential applications in industry and technology. While ... Read more
Nafion titania nanotubes nanocomposite electrolytes for high-temperature direct methanol fuel cells

Author: Cele, NP ; Ray, Suprakas S ; Sikhwivhilu, L Date: 2012 Nafion-based nanocomposite membranes containing various amounts of titania nanotubes (TNTs) as an inorganic filler have been prepared using melt-mixing method and have been investigated for proton exchange membrane applications. The one-dimensional ... Read more
The oxidative toxicity of Ag and ZnO nanoparticles towards the aquatic plant Spirodela punctuta and the role of testing media parameters

Author: Thwala, Melusi ; Musee, N ; Sikhwivhilu, L ; Wepener, V Date: Sep 2013 The toxicity effects of silver (nAg) and zinc oxide (nZnO) engineered nanoparticles (ENPs) on the duckweed Spirodela punctuta were studied to investigate the potential risks posed by these ENPs towards higher aquatic plants. The influence of ... Read more
The oxidative toxicity of Ag and ZnO nanoparticles towards the aquatic plant Spirodela punctuta and the role of testing media parameters: Conference paper

Author: Thwala, Melusi ; Musee, N ; Sikhwivhilu, L ; Wepener, V Date: Aug 2013 The toxicity effects of silver (nAg) and zinc oxide (nZnO) engineered nanoparticles (ENPs) on the duckweed Spirodela punctuta were studied to investigate the potential risks posed by these ENPs towards higher aquatic plants. The influence of ... Read more
Potential risks of nanotechnology to humans and environment: implications and response mechanisms in Africa

Author: Musee, N ; Sikhwivhilu, L ; Nota, N ; Schaefer, Lisa M Date: Nov 2011 Historically, development of mankind has been closely intertwined with scientific and technological advancements. In the 21st century, nanotechnology has emerged as an enabling technology with enormous potential of revolutionizing social, ... Read more
Relevance of nanotechnology to Africa: synthesis, applications and safety

Author: Musee, N ; Sikhwivhilu, L ; Gulumian, M Date: Jul 2012 In this chapter, two nanotechnology-based applications relevant to Africa in promoting sustainability and achievement of the Millennium Development Goals (MDGs) are presented. The applications comprise the provision of therapeutic treatment ... Read more
The stability of Ag and ZnO engineered nanoparticles in Hoagland's nutrient water: the role of particle size and morphology

Author: Radebe, N ; Thwala, Melusi ; Cele, LM ; Sikhwivhilu, L ; Musee, N ; Shumbula, P Date: Aug 2013 The current study seeks to investigate the dissolution dynamics of silver (nAg) and zinc oxide (nZnO) engineered nanoparticles (ENPs), and how this affects their uptake by aquatic higher plants. First, the influence of particle size and ... Read more
Stability of silver nanoparticles (nAg) in aqueous solution: the role of particle size and water ionic strength

Author: Radebe, N ; Cele, LM ; Sikhwivhilu, L ; Shumbula, P ; Musee, N ; Thwala, Melusi Date: 2014 Silver nanoparticles (nAg) are currently some of the widely produced and applied in commercial products. Their high usage translates to an increased potential to environmental release, and more concerning is their complex toxicity towards ... Read more

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Browsing by Author "Sikhwivhilu, L"

Browsing by Author "Sikhwivhilu, L"

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All of ResearchSpace

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