a
Center for Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, USA
E-mail: alik@rics.bwh.harvard.edu
b
Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, USA
c
Center of Nanotechnology, King Abdulaziz University, Jeddah, Saudi Arabia
d
Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, USA
e
World Premier International—Advanced Institute for Materials Research (WPI—AIMR), Tohoku University, Japan