1. Department of Chemistry, School
of Science and Technology and Research Center of Environmental Friendly
Polymer, Kwansei-Gakuin University, Gakuen
2-1, Sanda 669-1337, Japan
2. Nano-Bioanalysis Group, Health
Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Takamatsu, Kagawa 761-0395,
Japan