1. Department of JMTR, Japan Atomic Energy Agency, 4002 Narita, Oarai, Higashi-Ibaraki, Ibaraki 311-1393, Japan
2. Graduate School of Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan
3. Art Kagaku Co., Ltd., 3135-20 Muramatsu, Tokai, Naka, Ibaraki 319-1112, Japan
4. Department of Radiation Oncology, Kobe Proton Center, 1-6-8 Minatojima Minamimachi, Chuo-ku, Kobe 650-0047, Japan
5. JST-ERATO Yamauchi Materials Space-Tectonics Project and International Center for Materials Nanoarchitectonics (MANA), National Institute for Material Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
6. Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
7. School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072, Australia
8. Department of Urology, School of Medicine, College of Medicine, and TMU Research Center of Urology and Kidney, Taipei Medical University, No. 250, Wu-Hsing Street, Taipei 110, Taiwan
9. Department of Urology, Shuang Ho Hospital, Taipei Medical University, No. 291, Zhongzheng Road, Zhonghe District, New Taipei City 23561, Taiwan
10. Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan