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Browsing Research Publications/Outputs by Author "Maaza, M"

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Annealing effect on the structural and optical properties of Cr/ -Cr2O3 monodispersed particles based solar absorbers

Author: Khamlich, S ; McCrindle, R ; Nuru, ZY ; Cingo, N ; Maaza, M Date: Jan 2013 A cost-effective and environmentally friendly green chemical method, the so-called aqueous chemical growth (ACG) method, was used to deposit chromium/alpha-chromium(III) oxide, Cr/a-Cr2O3, monodispersed particles, for solar absorbers applications. ... Read more
Annealing effect on the structural and optical properties of Cr/a-Cr2O3 monodispersed particles based solar absorbers

Author: Khamlich, S ; McCrindle, R ; Nuru, ZY ; Cingo, N ; Maaza, M Date: Jan 2013 A cost-effective and environmentally friendly green chemical method, the so-called aqueous chemical growth (ACG) method, was used to deposit chromium/alpha-chromium(III) oxide, Cr/a-Cr2O3, monodispersed particles, for solar absorbers applications. ... Read more
Black Cr/a-Cr2O3 nanoparticles based solar absorbers

Author: Khamlich, S ; Nemraoui, O ; Mongwaketsi, N ; McCrindle, R ; Cingo, N ; Maaza, M Date: 2012 Monodisperse spherical core–shell particles of Cr/a-Cr2O3 with high adhesion were successfully coated on rough copper substrates by a simple self-assembly-like method for the use in solar thermal absorbers. The structure and morphology of the ... Read more
A classification and ranking system on the H2 gas sensing capabilities of nanomaterials based on proposed coefficients of sensor performance and sensor efficiency equations

Author: Mwakikunga, Bonex W ; Motshekga, S ; Sikhwivhilu, L ; Moodley, M ; Scriba, Manfred R ; Malgas, G ; Simo, A ; Maaza, M ; Ray, Suprakas S Date: Jul 2013 A coefficient of performance is defined based on the traditional definitions of response, S, of a chemoresistive sensing material to a specific gas from resistance–time data. The new definition not only considers the S(sub response) and S(sub ... Read more
The combination of low level laser therapy and efavirenz drastically reduces HIV infection in TZM-bl cells

Author: Lugongolo, Masixole Y ; Manoto, Sello L ; Ombinda-Lemboumba, Saturnin ; Maaza, M ; Mthunzi-Kufa, Patience Date: Jun 2020 Human immunodeficiency virus (HIV) infection remains a global health challenge despite the use of antiretroviral therapy, which has led to a significant decline in the mortality rates. Owing to the unavailability of an effective treatment to ... Read more
Could low level laser therapy and highly active antiretroviral therapy lead to complete eradication of HIV-1 in vitro?

Author: Lugongolo, Masixole Y ; Manoto, Sello L ; Ombinda-Lemboumba, Saturnin ; Maaza, M ; Mthunzi-Kufa, Patience Date: Jan 2017 Human immunodeficiency virus (HIV-1) infection remains a major health problem despite the use of highly active antiretroviral therapy (HAART), which has greatly reduced mortality rates. Due to the unavailability of an effective vaccine or a ... Read more
Cr/alpha-Cr2O3 monodispersed spherical core-shell particles based solar absorbers

Author: Khamlich, S ; Nuru, ZY ; Nemutudi, R ; Nemraoui, O ; Roro, Kittessa T ; Mongwaketsi, N ; McCrindle, R ; Cingo, N ; Maaza, M Date: Jul 2011 Monodispersed spherical core-shell particles of Cr/alpha-Cr2O3 cermet ACG coatings investigated within this contribution could be successfully employed in thermal converters. Their selectivity depends on their chemical, physical and structural ... Read more
The effects of low level laser therapy on both HIV-1 infected and uninfected TZM-bl cells

Author: Lugongolo, Masixole Y ; Manoto, Sello L ; Ombinda-Lemboumba, Saturnin ; Maaza, M ; Mthunzi-Kufa, Patience Date: Jan 2017 Human immunodeficiency virus (HIV-1) infection remains a major health problem despite the use of highly active antiretroviral therapy (HAART), which has greatly reduced mortality rates. Due to the unavailability of an effective vaccine and ... Read more
Efficient femtosecond driven SOX 17 delivery into mouse embryonic stem cells: Differentiation study

Author: Thobakgale, Setumo L ; Manoto, Sello L ; Ombinda-Lemboumba, Saturnin ; Maaza, M ; Mthunzi-Kufa, Patience Date: Jan 2017 Embryonic stem cells have great promise in regenerative medicine because of their ability to self-renew and differentiate into various cell types. Delivery of therapeutic genes into cells has already been achieved using of chemical agents and ... Read more
Electron spin resonance study of a-Cr2O3 and Cr2O3·nH2O quasi-spherical nanoparticles

Author: Khamlich, S ; Srinivasu, VV ; Nemraoui, O ; McCrindle, R ; Cingo, N ; Maaza, M Date: Dec 2011 The quasi-spherical nanoparticles of hydrated Cr2O3 · nH2O, and crystalline -Cr2O3, have been synthesized by reduction of the first row (3d) transition metal complex of K2Cr2O7. The temperaturedependence of electron spin resonance (ESR) ... Read more
Femtosecond laser assisted photo-transfection and differentiation of mouse embryonic stem cells

Author: Thobakgale, Setumo L ; Manoto, Sello L ; Ombinda-Lemboumba, Saturnin ; Maaza, M ; Mthunzi-Kufa, Patience Date: Jan 2018 In tissue engineering research, stem cells have been used as starting material in the synthesis of mammalian cells for the treatment of various cell based diseases. This is done by manipulating the DNA content of the cells to induce a specific ... Read more
Femtosecond laser surface structuring and oxidation of chromium thin coatings: black chromium.

Author: Kotsedi, L ; Nuru, ZY ; Mthunzi-Kufa, Patience ; Muller, TFG ; Eaton, SM ; Julies, B ; Manikandan, E ; Ramponi, R ; Maaza, M Date: Dec 2014 In view of their potential applications as selective solar absorbers, chromium coatings on float glass substrates were nano/micro structured by femtosecond laser in air. Raman and X-rays diffraction investigations confirmed the formation of ... Read more
Femtosecond laser surface structuring of molybdenum thin films

Author: Kotsedi, L ; Mthunzi-Kufa, Patience ; Nuru, ZY ; Eaton, SM ; Sechoghela, P ; Mongwaketsi, N ; Ramponi, R ; Maaza, M Date: Oct 2015 This contribution reports on the femtosecond surface structuring of molybdenum thin coatings deposited by electron beam evaporation onto Corning glass substrates. The 1-D type periodic grating lines created by such an ablation showed that the ... Read more
Fourier transform infrared spectroscopy for sepia melanin

Author: Mbonyiryivuze, A ; Mwakikunga, Bonex W ; Dhlamini, SM ; Maaza, M Date: Aug 2015 Melanin is of interest as a model system of understanding disorder in biological systems. The biological functionality of melanin depends on disorder which is considered as its essential part. This property distinguishes melanin from other ... Read more
From phonon confinement to phonon splitting in flat single nanostructures: A case of VO2@V2O5 core–shell nano-ribbons

Author: Mwakikunga, Bonex W ; Maaza, M ; Hillie, KT ; Arendse, CJ ; Malwela, T ; Sideras-Haddadf, E Date: Jul 2012 Raman spectroscopy of the VOx nano-ribbons is discussed in the framework of the Richter (1981) equation for optical phononconfinement (a) as modified for thin films by Fauchet and Campbell (1986), (b) as presented by Kim and co-workers for ... Read more
Growth and characterisation of gold thin film layer using an ebeam evaporation system for surface plasmon resonance applications

Author: Malabi, Rudzani ; Manoto, Sello L ; Ombinda-Lemboumba, Saturnin ; Khanyile, S ; Khamlich, S ; Maaza, M ; Mthunzi-Kufa, Patience Date: Apr 2019 Gold thin metal layers have been seen to be the most important signal amplification components in electrochemical and optical sensor applications. In surface plasmon resonance (SPR) applications, gold thin metal film possess electron densities ... Read more
In-vitro photo-translocation of antiretroviral drug delivery into TZMbl cells

Author: Malabi, Rudzani ; Manoto, Sello L ; Maaza, M ; Mthunzi-Kufa, Patience ; Ombinda-Lemboumba, Saturnin Date: Jan 2017 The objectives of this study are to use femtosecond laser pulses in a photo-translocation system to deliver ARVs into HIV infected TZMbl cells, and to investigate the influence of ARVs and laser on cellular processes using different molecular ... Read more
In-vitro photo-translocation of antiretroviral drug delivery into TZMbl cells

Author: Malabi, Rudzani ; Manoto, Sello L ; Ombinda-Lemboumba, Saturnin ; Maaza, M ; Mthunzi-Kufa, Patience Date: Jan 2017 The current human immunodeficiency virus (HIV) treatment regime possesses the ability to diminish the viral capacity to unnoticeable levels; however complete eradication of the virus cannot be achieved while latent HIV-1 reservoirs go ... Read more
Influence of electrospinning parameters on the structural morphology and diameter of electrospun nanofibers

Author: Jacobs, V ; Anandjiwala, RD ; Maaza, M Date: Nov 2009 Electrospinning is a simple method of producing nanofibers by introducing electric field into the polymer solutions. We report an experimental investigation on the influence of processing parameters and solution properties on the structural ... Read more
Ionic self-assembly of porphyrin nanostructures on the surface of charge-altered track-etched membranes

Author: Mongwaketsi, N ; Ndungu, PG ; Nechaev, A ; Maaza, M ; Sparrow, R Date: Jan 2010 Track-etched polymer membranes are typically used as templates in the synthesis of various nanowires or nanotubes arrays. The unique advantages of track-etched membranes, such as uniform pore structure, excellent porosity, easily tailored ... Read more

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