1. Department of Mechanical Engineering; Faculty of Engineering, Universiti Malaysia Sarawak; 94300 Kota Samarahan Sarawak Malaysia
2. Faculty of Applied Science; Universiti Teknologi MARA; 94300 Kota Samarahan Sarawak Malaysia
3. NANO-SciTech Centre (NST), Institute of Science, Universiti Teknologi MARA; Shah Alam Selangor Malaysia