1. Industrial Chemical Technology Programme, Faculty of Science and Technology, Universiti Sains Islam Malaysia, Bandar Baru Nilai, 71800 Nilai, Negeri Sembilan, Malaysia
2. Department of Chemical Engineering, South Kensington Campus, Imperial College London, London SWZ 2AZ, UK
3. Department of Science Biotechnology, Faculty of Engineering and Life Sciences, Universiti Selangor, Jalan Timur Tambahan, 45600 Bestari Jaya, Selangor, Malaysia