1. Department of Chemical Engineering Graduate School of Engineering Osaka Prefecture University 1–2, Gakuen‐cho, Naka‐ku, Sakai Osaka 599‐8570 Japan
2. Department of Biomedical Engineering The Pennsylvania State University 26 CBEB University Park PA 16802‐6804 USA
3. Department of Chemical Engineering Graduate School of Engineering Osaka Metropolitan University 1–2, Gakuen‐cho, Naka‐ku, Sakai Osaka 599‐8570 Japan
4. Japan Science and Technology Agency (JST) PRESTO, 4‐1‐8 Honcho Kawaguchi Saitama 332‐0012 Japan
5. Japan Science and Technology Agency (JST) CREST, 4‐1‐8 Honcho Kawaguchi Saitama 332‐0012 Japan