1. Department of Organic and Polymeric Materials, Tokyo Institute of Technology, Ookayama 2-12-1-S8, Meguro-ku, Tokyo 152-8552, Japan,
2. Institute of Physical Biology, University of South Bohemia and Institute of Plant Molecular Biology, Academy of Sciences of the Czech Republic, Branisovska 31, Ceske Budejovice 370 05, Czech Republic