1. Department of Biomedical Science, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Pulau Pinang, Malaysia
2. School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Nibong Tebal, Malaysia
3. Qdos Interconnect Sdn Bhd, Pulau Pinang, Malaysia
4. Science and Engineering Research Centre (SERC), Universiti Sains Malaysia, Nibong Tebal, Malaysia