1. Department of Pharmaceutical Chemistry Kulliyyah of PharmacyInternational Islamic University Malaysia Bandar Indera Mahkota 25200 Kuantan, Pahang Malaysia
2. Drugs and Herbal Research Centre Faculty of PharmacyUniversiti Kebangsaan Malaysia Jalan Raja Muda Abdul Aziz 50300 Kuala Lumpur Malaysia
3. Nanotechnology and Catalysis Research Centre (NANOCAT)University of Malaya 50603 Kuala Lumpur Malaysia
4. Faculty of Industrial Science & TechnologyUniversiti Malaysia Pahang Lebuhraya Tun Razak 26300 Gambang, Pahang Malaysia
5. School of Chemical Sciences & Food TechnologyUniversiti Kebangsaan Malaysia 43600 Bangi, Selangor Malaysia