Author:Mthunzi-Kufa, Patience; Gunn-Moore, F; Dholakia, KDate:Sep 2010Due to their self-renewal and pluripotency characteristics, stem cells possess the potential to dramatically advance current therapies in tissue regeneration and engineering. In this work, we report for the first time that femtosecond laser ...Read more
Author:Mthunzi-Kufa, Patience; Gunn-Moore, FJ; Dholakia, KDate:Jun 2009Various methods including chemical, viral or physical approaches have been developed to trigger transient membrane permeabilisation with limited cytotocixity in cells. Such developments permit efficient cytoplasmic delivery of genes, ...Read more
Author:Thobakgale, Setumo LDate:Jan 2017This presentation is about the photo-transfection of mouse embryonic stem cells with plasmid DNA using femtosecond laser pulses. It outlines the background on embryonic stem cells (ES) and phototransfection.Read more
Author:Thobakgale, Setumo LDate:Jan 2017This presentation is about the photo-transfection of mouse embryonic stem cells with plasmid DNA using femtosecond laser pulses. It outlines the background on embryonic stem cells (ES) and phototransfection.Read more
Author:Khanyile, T; Papathanasopoulos, M; Forbes, A; Mthunzi-Kufa, PatienceDate:Apr 2013Targeted drug delivery into HIV-1 infected cells offers a reduction in toxicity and side effect. Using a femtosecond (fs) laser of different beam shapes anti-HIV-1 drugs are efficiently delivered into TZM-bl cells.Read more
Author:Mukwevho, N; Fosso-Kankeu, E; Waanders, F; Kumar, Neeraj; Ray, Suprakas S; Mbianda, XYDate:Jan 2019Multimetal oxides nanocomposite photocatalysts based on Gd2O2CO3·ZnO·CuO were prepared by a co-precipitation method and carefully characterized using a range of analytical techniques. More specifically, analysis by X-ray diffraction and ...Read more
Author:Chakraborty, AK; Ganguli, S; Kebede, Mesfin ADate:Jun 2012Single crystalline MnWO4 nanorod has been prepared by low temperature hydrothermal reaction at 180 °C. The prepared MnWO4 possesses band gap of 2.63 eV. Photochemical decomposition method has been followed to disperse Au nanoparticles onto ...Read more
Author:Maduray, K; Karsten, A; Odhav, B; Nyokong, TDate:Jun 2010Aluminium and zinc tetrasulfophthalocyanines were activated with a 672nm wavelength laser to investigate the photodynamic effects on melanoma cancer, dermal fibroblast and epidermal keratinocyte cells. Aluminium tetrasulfophthalocyanine was ...Read more
Author:Maduray, K; Karsten, A; Odhav, B; Nyokong, TDate:Jun 2010Photodynamic therapy (PDT) represents a novel treatment that uses a photosensitizer (PS), light source (laser) of an appropriate wavelength and oxygen to induce cell death in cancer cells. The aim of this study was to investigate the photodynamic ...Read more
Author:Ama, Monday O; Wilson, AW; Ray, Suprakas SDate:Aug 2019The present study reports the application of three electrodes, consisting of exfoliated graphite (EG), EG and zirconium oxide (EG-ZrO2), and EG and silver-doped zirconium oxide (EG/Ag-ZrO2) in a comparative photoelectrochemical degradation ...Read more
Author:Chamier, J; Crouch, AM; Leaner, J; Oberholster, Paul JDate:01 Sep 2010Toxic heavy metals in air, soil, and water are global problems that are a growing threat to the environment. Trace metal determination is currently done by expensive separation techniques which include inductively coupled plasma (ICP) and ...Read more
Author:Mphahlele, NDate:Apr 2013Significant attention is being paid to dye solar cells (DSCs) as the next generation in solar cell technology for their low cost alternative to the currently implemented solid state solar cells [1]. In these devices, photosensitisers are one ...Read more
Author:Sikhwivhilu, LM; Mpelane, S; Mwakikunga, Bonex W; Ray, Suprakas SDate:Mar 2012Titanium dioxide (TiO2) nanostructures were synthesized by microwave-assisted and conventionally heated hydrothermal treatment of TiO2 powder. The tubular structures were converted to a rodlike shape by sintering the samples at various ...Read more
Author:Kabongo, GL; Mbule, PS; Mhlongo, Gugu H; Mothudi, BM; Hillie, Kenneth T; Dhlamini, MSDate:Dec 2016In this article, we demonstrate the surface effect and optoelectronic properties of holmium (Ho(sup3+))-doped ZnO in P3HT polymer nanocomposite. We incorporated ZnO:Ho(sup3+) (0.5 mol% Ho) nanostructures in the pristine P3HT-conjugated polymer ...Read more
Author:Bollig, C; Forbes, A; Dlamini, TDate:Dec 2007This document gives an overview of the development of photonics in South Africa. The development of science, engineering and technology (SET) has been identified as one of the key elements for the long-term sustainability and competitiveness ...Read more
Author:Mthunzi-Kufa, Patience; Dholakia, K; Gunn-Moore, FDate:Jul 2010Recently, femtosecond laser pulses have been utilized for the targeted introduction of genetic matter into mammalian cells. This rapidly expanding and developing novel optical technique using a tightly focused laser light beam is called ...Read more