1. Institute of Microengineering and Nanoelectronics; Universiti Kebangsaan Malaysia; Bangi Selangor 43600 Malaysia
2. Faculty of Pharmacy; Universiti Kebangsaan Malaysia; Kuala Lumpur 50300 Malaysia
3. Mechanobiology Institute, National University of Singapore; 5A Engineering Drive 1 Singapore 117411 Singapore
4. Department of Biomedical Engineering; National University of Singapore; 9 Engineering Drive 1 Singapore 117575 Singapore