1. Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02139, USA and Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
2. Programa de Doctorado en Biomedicina, Universidad de los Andes, Santiago 7620001, Chile
3. Cell and Tissue Engineering Laboratory, IRCCS Istituto Ortopedico Galeazzi, Milano 20161, Italy
4. Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts 02115, USA
5. Laboratory of Nano-Regenerative Medicine, Facultad de Medicina, Universidad de los Andes, Santiago 7620001, Chile
6. Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Hwayang-dong, Kwangjin-gu, Seoul 143-701, South Korea
7. Nanotechnology Center, King Abdulaziz University, Jeddah 21569, Saudi Arabia