1. Computational Chemistry and Physics Laboratory, School of Distance Education, Universiti Sains Malaysia, Pulau Pinang 11800, Malaysia
2. USM-RIKEN International Center for Aging Science, Universiti Sains Malaysia, Pulau Pinang 11800, Malaysia
3. Physics Section, School of Distance Education, Universiti Sains Malaysia, Pulau Pinang 11800, Malaysia
4. Faculty of Applied Sciences, Universiti Teknologi MARA, Arau, Perlis 02600, Malaysia
5. Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, Pulau Pinang 13200, Malaysia
6. Meson Science Laboratory, RIKEN, Wako, Saitama 351-0198, Japan