1. UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa
2. Department of Chemistry, University of South Africa
3. Department of Physics, Adigrat University, Ethiopia
4. Department of Chemistry (CMI laboratory), University of Namur, Belgium
5. IMMM, University of Le Maine, France
6. Department of Physics and Astronomy, Nottingham University, UK
7. Department of Chemical Sciences, University of Johannesburg, South Africa
8. INRS-Energy and Materials, Canada