1. Center of Excellence Geopolymer and Green Technology; Faculty of Engineering Technology, Universiti Malaysia Perlis; Perlis Malaysia
2. Nanoscience Research Laboratory; School of Chemical Sciences, Universiti Sains Malaysia; Minden Penang 11800 Malaysia
3. EMAN Research and Testing Laboratory; School of Pharmaceutical Sciences, Universiti Sains Malaysia; Minden Pulau Pinang 11800 Malaysia