Prof Oluwatobi S Oluwafemi is an NRF rated researcher and actively involved in research in the area of nanotechnology. He is a Professor at the Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, South Africa. He has published many papers in internationally recognized journals and has presented at several professional meetings both local and internationally. He is a fellow of many professional bodies, a reviewer for many international journals, and has received many awards for his excellent work in material research both local and international. His current research interests include green synthesis and application of nanomaterials in medicine, water treatment and fabrication of device.