1. CINTRA CNRS/NTU/THALES UMI 3288, Research Techno Plaza, 50 Nanyang Drive, Border X Block Singapore 637553 Singapore
2. School of Electrical and Electronic Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
3. School of Materials Science and Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
4. School of Automation Hangzhou Dianzi University Hangzhou 310018 Zhejiang China
5. School of Biological Sciences Nanyang Technological University 60 Nanyang Drive Singapore 637551 Singapore
6. Institut d'Electronique, de Microélectronique et de Nanotechnologie (IEMN) Université de Lille Villeneuve d'Ascq CNRS UMR 8520 59650 France