Search Results - "Mwakikunga, Bonex W."

Malaria in children under-five: A comparison of risk factors in lakeshore and highland areas, Zomba district, Malawi by Hajison, Precious L, Feresu, Shingairai A, Mwakikunga, Bonex W

“…In Malawi, children under the age of five living in different geographical areas may experience different malaria risk factors. We compare the risk factors of…”
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Seasonal variation of malaria cases in children aged less than 5 years old following weather change in Zomba district, Malawi by Hajison, Precious L, Mwakikunga, Bonex W, Mathanga, Don P, Feresu, Shingairai A

“…Malaria is seasonal and this may influence the number of children being treated as outpatients in hospitals. The objective of this study was to investigate the…”
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Strain and grain size of TiO2 nanoparticles from TEM, Raman spectroscopy and XRD: The revisiting of the Williamson-Hall plot method by Kibasomba, Pierre M., Dhlamini, Simon, Maaza, Malik, Liu, Chuan-Pu, Rashad, Mohamed M., Rayan, Diaa A., Mwakikunga, Bonex W.

“…[Display omitted] •First revision of the Williamson-Hall βcosθ-sinθ plot to β2cos2θ-sinθ and βcos2θ-sinθ.•The β2cos2θ-sinθ overestimates crystallite size when…”
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Room temperature ferromagnetism and gas sensing in ZnO nanostructures: Influence of intrinsic defects and Mn, Co, Cu doping by Mhlongo, Gugu H., Shingange, Katekani, Tshabalala, Zamaswazi P., Dhonge, Baban P., Mahmoud, Fawzy A., Mwakikunga, Bonex W., Motaung, David E.

“…•Preparation of Mn, Co, Cu doped ZnO via microwave-assisted method.•Doping alters the morphology of ZnO nanostructures.•Concentration of zinc and oxygen…”
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Progress in Ultrasonic Spray Pyrolysis for Condensed Matter Sciences Developed From Ultrasonic Nebulization Theories Since Michael Faraday by Mwakikunga, Bonex W.

“…This review outlines, in great detail, the history of the phenomenon of ultrasonic nebulization of liquids since the discovery of such an effect by Michael…”
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Temperature-dependence on the structural, optical, and paramagnetic properties of ZnO nanostructures by Mhlongo, Gugu H., Motaung, David E., Nkosi, Steven S., Swart, H.C., Malgas, Gerald F., Hillie, Kenneth T., Mwakikunga, Bonex W.

“…•Violet-blue emitting ZnO nanostructures.•Annealing temperature effect on magnetic, optical, and structural properties of ZnO nanostructures.•Origin of ZnO…”
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Tunable optical properties of some rare earth elements-doped mayenite Ca12Al14O33 nanopowders elaborated by oxalate precursor route by Rashad, Mohamed M., Mostafa, Ahmed G., Mwakikunga, Bonex W., Rayan, Diaa A.

“…Rare earth (RE) ions-doped mayenite Ca 12 Al 14− x RE x O 33 nanopowders (where RE = La and Gd and  x  = 0–1.0) were synthesized using the oxalate precursor…”
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Photoluminescence and Hydrogen Gas-Sensing Properties of Titanium Dioxide Nanostructures Synthesized by Hydrothermal Treatments by Sikhwivhilu, Lucky M, Mpelane, Siyasanga, Mwakikunga, Bonex W, Sinha Ray, Suprakas

“…Titanium dioxide (TiO2) nanostructures were synthesized by microwave-assisted and conventionally heated hydrothermal treatment of TiO2 powder. The tubular…”
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Preferential adsorption of NH3 gas molecules on MWCNT defect sites probed using in situ Raman spectroscopy by Chimowa, George, Matsoso, Boitumelo, Coville, Neil J., Ray, Suprakas Sinha, Flahaut, Emmanuel, Hungria, Teresa, Datas, Lucien, Mwakikunga, Bonex W.

“…The preferential adsorption of NH3 gas molecules on multi‐walled carbon nanotubes (MWCNTs) was studied using in situ Raman spectroscopy. It was observed that…”
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Nano-scale carbon onions produced by laser photolysis of toluene for detection of optical, humidity, acetone, methanol and ethanol stimuli by Dhonge, Baban P., Motaung, David E., Liu, Chuan-Pu, Li, Yi-Chang, Mwakikunga, Bonex W.

“…•Laser liquid medium pyrolysis synthesis of onion likes carbon (OLC) and growth mechanism.•The semiconductor switching characteristic (from p- to n-type) of…”
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Influence of substrate treatment on the growth of advanced core–shell alloys and compounds of FeSi@SiO2 and SiO2 nanowires by Thabethe, Sibongiseni, Arendse, Christopher J., Mwakikunga, Bonex W.

“…[Display omitted] •FeSi nanowires by vapour transport obtained from FeCl3 precursor vapour on Si substrate at 1100°C.•Au catalyst in similar reaction leads to…”
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classification and ranking system on the H₂ gas sensing capabilities of nanomaterials based on proposed coefficients of sensor performance and sensor efficiency equations by Mwakikunga, Bonex W, Motshekga, Sarah, Sikhwivhilu, Lucky, Moodley, Mathew, Scriba, Manfred, Malgas, Gerald, Simo, A, Sone, B, Maaza, M, Sinha Ray, Suprakas

“…A coefficient of performance is defined based on the traditional definitions of response, S, of a chemoresistive sensing material to a specific gas from…”
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Comparative study: the effect of annealing conditions on the properties of P3HT:PCBM blends by Motaung, David E., Malgas, Gerald F., Nkosi, Steven S., Mhlongo, Gugu H., Mwakikunga, Bonex W., Malwela, Thomas, Arendse, Christopher J., Muller, Theophillus F. G., Cummings, Franscious R.

“…This paper presents a detailed study on the role of various annealing treatments on organic poly(3-hexylthiophene) and [6]-phenyl-C 61 -butyric acid methyl…”
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Visible and IR photoluminescence of c-FeSi@a–Si core–shell nano-fibres produced by vapour transport by Thabethe, Sibongiseni, Linganiso, Ella, Motaung, David, Mashapa, Matete G., Nkosi, Steven, Arendse, Christopher J., Mwakikunga, Bonex W.

“…The procedures for the synthesis of amorphous ε-FeSi/Si core–shell nanofibres by vapour transport in a CVD configuration are reported. Crystallite studies by…”
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The influence of ZnO nanostructures on the structure, optical and photovoltaic properties of organic materials by Malgas, Gerald F., Motaung, David E., Mhlongo, Gugu H., Nkosi, Steven S., Mwakikunga, Bonex W., Govendor, Malcolm, Arendse, Christopher J., Muller, Theophillus F.G.

“…Hexagonally shaped zinc-oxide (ZnO) nanorods were synthesized by a simple hydrothermal route. These nanorods were incorporated in a polymer matrix to study the…”
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Epitaxial deposition of silver ultra-fine nano-clusters on defect-free surfaces of HOPG-derived few-layer graphene in a UHV multi-chamber by in situ STM, ex situ XPS, and ab initio calculations by Ndlovu, Gebhu F, Roos, Wiets D, Wang, Zhiming M, Asante, Joseph KO, Mashapa, Matete G, Jafta, Charl J, Mwakikunga, Bonex W, Hillie, Kenneth T

“…The growth of three-dimensional ultra-fine spherical nano-particles of silver on few layers of graphene derived from highly oriented pyrolytic graphite in…”
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Monitoring of glucose in people living with diabetes mellitus: A study comparing nano-based acetone/glucose breath analyzer, two commercial glucometers and laboratory-based glucose analysis by Tshotetsi, Lumbani, Mwakikunga, Bonex W., Rheeder, Paul

“…Non-invasive glucose testing is one of the novel methods for monitoring glucose in people living with diabetes mellitus. We researched how breathe acetone…”
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Synthesis and characterization of potential iron-platinum drugs and supplements by laser liquid photolysis by Nkosi, Steven S, Mwakikunga, Bonex W, Sideras-Haddad, Elias, Forbes, Andrew

“…Highly crystalline nanospherical iron-platinum systems were produced by 248 nm laser irradiation of a liquid precursor at different laser fluences, ranging…”
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Effects of temperature, humidity and pressure on the nano-based gas/breath analyzer performance on the gate-voltage enabled detection of acetone and ethanol by Mwakikunga, Bonex W., Maesela, Eldas, du Toit, Jurie, Lay-Ekuakille, Aime

“…Breath analysers for alcohol and other breath biomarker are affected by a number of environmental parameters. Of these, humidity, temperature and pressure are…”
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Mechanical and Structural Properties of Fluorine-Ion-Implanted Boron Suboxide by Mwakikunga, Bonex W., Machaka, Ronald, Manikandan, Elayaperumal, Derry, Trevor E., Sigalas, Iakovos, Herrmann, Mathias

“…Results on a systematic study on the effects of ion implantation on the near-surface mechanical and structural properties of boron suboxide (B6O) prepared by…”
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