1. Department of Life SciencesCentral University of Technology Bloemfontein Free State South Africa
2. Department of Physical and Earth Sciences (PES)Sol Plaatje University Kimberley South Africa
3. Department of ChemistryUniversity of South Africa Florida Park Gauteng South Africa
4. DST/CSIR National Centre for Nanostructured MaterialsCouncil for Scientific and Industrial Research Pretoria South Africa
5. Advanced Polymer Composites, Centre of Nanostructured and Advanced MaterialCSIR Pretoria South Africa
6. Department of ChemistryNelson Mandela University Port Elizabeth South Africa