1. Laboratory of Biomedical Engineering for Cancer, Department of Biomedical Engineering, Graduate School of Biomedical Engineering; Tohoku University; 4-1 Seiryo, Aoba Sendai 980-8575 Japan
2. Biomedical Engineering Cancer Research Center, Graduate School of Biomedical Engineering; Tohoku University; 4-1 Seiryo, Aoba Sendai 980-8575 Japan
3. Department of Applied Chemistry; University of Johannesburg; Doornfontein Campus P.O. Box 17011 Doornfontein 2028 South Africa
4. Institute of Fluid Science; Tohoku University; 2-1-1 Katahira, Aoba Sendai 980-8577 Japan
5. Department of Oral and Maxillofacial Surgery; Tohoku University Hospital; 1-1 Seiryo, Aoba Sendai 980-8575 Japan