1. Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam, Malaysia
2. Advanced Biomaterials and Carbon Development Research Group, Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam, Malaysia
3. Chemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia
4. Chemistry Department, University of Saskatchewan, Saskatoon, SK, Canada