1. WPI-Advanced Institute for Materials Research (WPI-AIMR), Tohoku University; Sendai 980-8577 Japan
2. Research and Development Center for Ultra High Efficiency Nano-crystalline Soft Magnetic Materials; Institute for Materials Research, Tohoku University; Sendai 980-8577 Japan
3. Department of Medicine, Center for Biomedical Engineering, Brigham and Women's Hospital; Harvard Medical School; Cambridge Massachusetts 02139
4. Harvard-MIT Division of Health Sciences and Technology; Massachusetts Institute of Technology; Cambridge Massachusetts 02139
5. Wyss Institute for Biologically Inspired Engineering, Harvard University; Boston Massachusetts 02115
6. Department of Maxillofacial Biomedical Engineering and Institute of Oral Biology, School of Dentistry; Kyung Hee University; Seoul 130-701 Republic of Korea
7. Research Center for Ubiquitous MEMS and Micro Engineering; AIST; Tsukuba 305-8564 Japan
8. Graduate School of Engineering, Tohoku University; Sendai 980-8579 Japan