1. Department of Electrical and Computer Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, 53100 Gombak, Selangor, Malaysia
2. Biosensors and Bioelectronics Centre, Department of Physics, Chemistry and Biology (IFM), Linköping University, 58183, Linköping, Sweden
3. Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong