1. Department of Chemistry, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
2. Institute of Biological Sciences, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
3. Department of Biotechnology, Faculty of Applied Science, Lincoln University College, 47301 Petaling Jaya, Selangor, Malaysia
4. Foundation in Science, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor, Malaysia
5. School of Pharmacy, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor, Malaysia