1. Centre for Biomimetic Sensor Science, Nanyang Technological University, Singapore 637553
2. Nanyang Institute of Technology in Health and Medicine, Interdisciplinary Graduate School, Nanyang Technological University, Singapore 637553
3. School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798
4. Department of Chemistry, Izmir Institute of Technology, Urla, 35430 Izmir, Turkey