1. Department of Science and Innovation/Mintek Nanotechnology Innovation Centre, Biolabels Research Node, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa
2. Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa
3. Health Platform, Advanced Materials Division, Mintek, Randburg 2194, South Africa
4. Department of Biomedical Sciences, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, Bellville 7535, South Africa