1. Innovation
Design Engineering, Royal College of Art, London SW7 2EU, U.K.
2. Graduate
School of Environmental Science, Tohoku University, 468-1, Aramaki, Aza-Aoba, Aoba-Ku, Sendai 980-0845, Japan
3. WPI-Advanced
Institute for Materials Research (AIMR), Tohoku University, 2-1-1,
Katahira, Aoba-Ku, Sendai 980-8577, Japan