Author:Raleaooa, PV; Roodt, A; Mhlongo, Gugu H; Motaung, David E; Kroon, RE; Ntwaeaborwa, OMDate:Feb 2017The structure, particle morphology, optical and magnetic properties of ZnO, ZnS and ZnO-ZnS nanoparticles prepared by the sol-gel method are reported. ZnO and ZnS were combined at room temperature by an ex situ synthetic route to prepare ...Read more
Author:Mathe, Ntombizodwa R; Scriba, Manfred R; Rikhotso, Rirhandzu S; Coville, NJDate:2017Bimetallic Pt–Ni nanoparticles were synthesized for use as electrocatalysts for the methanol oxidation reaction using a cost-effective microwave-irradiation synthesis procedure that offers precise temperature control. By varying the concentration ...Read more
Author:Kesavan Pillai, Sreejarani; Ray, SS; Scriba, Manfred R; Ojijo, Vincent O; Hato, MJDate:Jul 2013Biocomposites containing ultraviolet (UV) radiation absorbing inorganic nanofillers are of great interest in food packaging applications. The biodegradable polylactide (PLA) composite films were prepared by solvent casting method by incorporating ...Read more
Author:Motloung, Mpho P; Ojijo, Vincent O; Sinha Roy, JayitaDate:Nov 2019This work investigates the effect of cellulose nanocrystal (CN) loading on the properties of polylactide/poly(e-caprolactone) (PLA/PCL) (70/30) blend processed in a twin-screw extruder as a potential material that can be utilized in various ...Read more
Author:Mavuso, MA; Makgwane, Peter R; Ray, Suprakash SDate:Nov 2020The effective Ce3+/Ce4+ redox and oxygen mobility of CeO2 induced by tunable nanostructure morphology has attracted a great interest in photocatalytic organic synthesis. Herein, we report on the microwave‐assisted synthesis of CeO2 with ...Read more
Author:Benadie, Y; Semete, B; Venter, L; Kalombo, Lonji; Driver, C; Jones, AT; Swai, H; Verschoor, JADate:Jun 2008The cell wall envelope of Mycobacterium tuberculosis contains unique high molecular weight lipids. Of these, the most abundant are mycolic acids, an extended family of long 2-alkyl 3-hydroxyl fatty acids, typically 70-90 carbon atoms in length, ...Read more
Author:Ozoemena, KI; Chen, SDate:2016Global experts provide an authoritative source of information on the use of electrochemical fuel cells, and in particular discuss the use of nanomaterials to enhance the performance of existing energy systems. The book covers the state of the ...Read more
Author:Siswana, MP; Ozoemena, KI; Geraldo, DA; Nyokong, TDate:Aug 2010This work reports for the first time that nanostructured nickel (II) phthalocyanine/multiwalled carbon nanotubes composite supported on a basal plane pyrolytic electrode (NiPcNP/MWCNT-BPPGE) could potentially serve as a viable platform for ...Read more
Author:Mabena, LF; Ray, SS; Mhlanga, SD; Coville, NJDate:May 2011The science and technology of catalysis is of fundamental importance to a national economy. Today about 90% of all technical chemicals are manufactured by the use of catalysts. Nanoparticles of noble metals are extremely important materials ...Read more
Author:Kesavan Pillai, Sreejarani; Moloto, N; Ray, SSDate:Feb 2009The organization of metal or semiconductor nanoparticles like quantum dots (QDs) on carbon nanotubes (CNTs) is one good example motivated by the desire to combine the properties of two functional nanoscale materials to achieve a wider range ...Read more
Author:Moloto, N; Mpelane, S; Sikhwivhilu, LM; Ray, Suprakas SDate:2012A microwave-assisted hydrothermal method was used to synthesize ZnO and TiO2 nanostructures. The experimental results show that the method resulted in crystalline monodispersed ZnO nanorods that have pointed tips with hexagonal crystal phase. ...Read more
Author:Kumbhakar, P; Ray, Suprakas S; Stepanov, ALDate:2014Semiconductor and metallic nanomaterials and nanocomposites possess interesting linear absorption, photoluminescence emission, and nonlinear optical properties. Nanomaterials having small particle sizes exhibit enhanced optical emission as ...Read more
Author:Gbadeyan, OJ; Adali, S; Bright, G; Sithole, Bishop B; Onwubu, SDate:Jul 2020The possibility of obtaining calcium carbonate nanoparticles from Achatina fulica shell through mechanochemical synthesis to be used as a modifying filler for polymer materials has been studied. The process of obtaining calcium carbonate ...Read more
Author:Ray, Suprakas SDate:2012Polylactide (PLA) is the oldest and potentially one of the most interesting and useful biodegradable man-made polymers because of its renewable origin, controlled synthesis, good mechanical properties, and inherent biocompatibility. The ...Read more
Author:Mago, G; Ray, Suprakas S; Shofner, ML; Wang, S; Zhang, JDate:Feb 2014Nanoparticles, such as carbon nanotubes, nanoclays, and graphenes, are widely used in the polymer nanocomposites to alter the chemical, mechanical, electrical, optical, and thermal properties. However, a number of critical issues need to be ...Read more
Author:Barnard, A; Chetty, A; Klumperman, BDate:Oct 2012The intelligent management of South Africa’s scarce water resources is a key focus area for the CSIR. This work aims to develop a rapid method for the detection of microbial
contamination in water to assist authorities in the prevention of ...Read more
Author:Ojijo, Vincent O; Ray, Suprakas SDate:Oct 2018Although polymer nanocomposites (PNCs) are now a relatively well-established technology, nanoparticles (NPs) such as carbon nanotubes (CNTs) and graphene are opening up new application areas in engineering PNCs. Therefore, research and ...Read more
Author:Salehiyan, Reza; Ray, Suprakas SDate:Oct 2018This chapter discusses the roles of different nanoparticle types such as clays, CNTs, and graphene-based materials in the rubber manufacturing processes. It is shown that nanoparticles not only reinforce rubber matrices, but they can also ...Read more
Author:Mandiwana, V; Kalombo, Lonji; Venter, Karien; Sathekge, M; Grobler, A; Zeevaart, JRDate:Sep 2015Developing nanoparticulate delivery systems that will allow easy movement and localization of a drug to the target tissue and provide more controlled release of the drug in vivo is a challenge in nanomedicine. The aim of this study was to ...Read more