Author:Semete, B; Booysen, L; Kalombo, Lonji; Ramalapa, B; Hayeshi, R; Swai, HSDate:Mar 2012The surface of nanoparticles is often functionalised with polymeric surfactants, in order to increase systemic circulation time. This has been investigated mainly for intravenously administered nanoparticles. This study aims to elucidate the ...Read more
Author:Mlalila, N; Swai, H; Kalombo, Lonji; Hilonga, ADate:Dec 2014The goal of this study was to explore the effects of spray-drying on w/o/w double emulsions of methyltestosterone (MT) loaded in a stearic acid matrix. MT-loaded nanoparticles were formulated by a water-in-oil-in-water emulsion technique using ...Read more
Author:Kumar, Neeraj; Mittal, Hemmant; Parashar, V; Ray, Suprakas S; Ngila, JCDate:Feb 2016This research paper reports the synthesis and usage of the polyacrylamide (PAAm) grafted gum karaya (Gk) and nickel sulphide nanoparticle based hydrogel to effectively remove rhodamine 6G dye (R6G) from aqueous solution. Initially, the hydrogel ...Read morecb
Author:Fuku, Xolile G; Modibedi, Remegia MDate:Dec 2019Nanoscience has shown itself to be one of the most exciting areas in science, with experimental developments being driven by pressing demands for new technological applications. It is a highly multidisciplinary research field, and the ...Read more
Author:Modibedi, Remegia M; Louw, EK; Mathe, Mahlanyane K; Ozoemena, KIDate:2013Electrodeposition of Pt and Pd metal by surface limited redox replacement reactions was performed using the electrochemical atomic layer deposition. Carbon paper and Ni foam were used as substrates for metal deposition. Supported Pt and Pd ...Read more
Author:Modibedi, Remegia M; Louw, EK; Ozoemena, KI; Mathe, Mahlanyane KDate:Oct 2012Electrodeposition of Pt and Pd metal by surface limited redox replacement reactions was performed using the electrochemical atomic layer deposition. Carbon paper and Ni foam were used as substrates for metal deposition. Supported Pt and Pd ...Read more
Author:Louw, EK; Modibedi, Remegia M; Ozoemena, K; Mathe, Mahlanyane KDate:Jul 2012The cost of the platinum catalyst hinders the progress of direct methanol fuel cells (DMFCs) into the commercial world. Electrochemical atomic layer deposition (ECALD) method was used to reduce the amount of Pt used and to increase its ...Read more
Author:Adekunle, AS; Ozoemena, KIDate:Jun 2010This work describes the electron transport and electrocatalytic properties of chemically-synthesized nickel (Ni) and nickel oxide (NiO) nanoparticles supported on multi-walled carbon nanotubes (MWCNT) platforms. Successful modification of the ...Read more
Author:Wiechers, JW; Musee, NDate:Oct 2010The cosmetic industry is among the first adaptors of nanotechnology through the use of engineered nanoparticles (ENPs) to enhance the performance of their products and meet the customers’ needs. Recently, there have been increasing concerns ...Read more
Author:Nota, N; Musee, N; Aldrich, CDate:01 Sep 2010Nanotechnology-based applications have dramatically increased in commercial and industrial applications1-3 (see Figures 1, 2 and 3). Also, the growth of nanotechnology-based consumer products (nanoproducts) in the global market is expected ...Read more
Author:Swai, H; Hillie, KT; Cingo, N; Kalombo, Lonji; Legodi, M; Semete, BDate:Feb 2006In this study, isoniazid, one of the most potent anti-TB drugs, was successfully encapsulated in poly (D, L- lactide-co-glycolide) (PLG) and in alginate-chitosan polymeric systems using a double-emulsion method and a cation-induced gelation ...Read more
Author:Thwala, Melusi; Musee, N; Wepener, V; Nota, NDate:Apr 2012The toxicity of engineered nanoparticles towards macro algae and higher aquatic plants has not been well studied. This knowledge gap challenges the development of nano risk assessment towards water ecosystems. In this study, we investigated ...Read more
Author:Thwala, Melusi; Radebe, N; Tancu, Y; Musee, NDate:Sep 2014Transformation and bioavailability information of engineered nanoparticles (ENPs) in environmental systems impedes assessment of their potential risks to aquatic environments. In aqueous environments ENPs undergo numerous transformation ...Read more
Author:Mdletshe, Lindokuhle S; Makgwane, Peter R; Ray, Suprakas SDate:Aug 2019This study report on the synthesis of spinel CuFe2O4 nanostructures by surfactant-assisted method. The catalysts were characterized by X-ray diffraction (XRD), laser Raman, transition electron microscope (TEM), scanning electron microscope ...Read more
Author:Scriba, Manfred R; Britton, DT; Härting, MDate:Nov 2012Monocrystalline silicon nanoparticles with a mean diameter of between 30 and 40 nm have been synthesised by hot wire thermal catalytic and spark pyrolysis at a pressure of 40 and 80 mbar respectively. For the production a mixture of the ...Read more
Author:Semete, B; Booysen, L; Lemmer, Yolandy; Kalombo, Lonji; Katata, L; Verschoor, J; Swai, HSDate:Oct 2010The remarkable physicochemical properties of particles in the nanometer range have been proven to address many challenges in the field of science. However, the possible toxic effects of these particles have raised some concerns. The aim of ...Read more
Author:Sikhwivhilu, LM; Kesavan Pillai, Sreejarani; Hillie TKDate:Oct 2010Tin oxide (SnO2) nanoparticles with size range of 19 to 100 nm were successfully synthesized using wet chemical process (i.e. chemical precipitation and sol-gel processes). The results showed that variation of citric acid concentration directly ...Read more
Author:Nofar, M; Salehiyan, Reza; Ray, Suprakas SDate:Jun 2021This article critically reviews the influence of different nanoparticle localization on the final structure-property relationships of polylactide (PLA)-based blend nanocomposites. The effects of kinetics and thermodynamic parameters on the ...Read more
Author:Thwala, Melusi; Radebe, N; Tancu, Y; Musee, NDate:Sep 2014This study investigated the stability of nAg (40-60 nm) and nZnO (10-130 nm) NPs in Hoagland's Medium of half (50HM) and full (100HM) strengths as representative of complex water. The hydrodynamic size dynamics were studied using the Transmission ...Read more
Author:Gayathri, S; Ghosh, OSN; Sathishkumar, S; Sudhakara, S; Jayaramudu, J; Ray, SS; Viswanath, AKDate:Dec 2015In this report we have demonstrated the synthesis of silver doped and pure ZnO nanoparticles using facile chemical precipitation method. The crystal structure, optical and magnetic properties of the synthesized nanocrystals were determined ...Read more