1. Department of Physics, National University of Singapore, Singapore 117551, Singapore
2. Mechanobiology Institute, National University of Singapore, Singapore 117411, Singapore
3. School of Life Sciences, East China Normal University, Shanghai 200241, China
4. Rudolf Schönheimer Institute of Biochemistry, Division of General Biochemistry, Medical Faculty, Leipzig University, Leipzig 04103, Germany
5. Centre for Bioimaging Sciences, National University of Singapore, Singapore 117557, Singapore
6. Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China