Affiliation: | 1. Department of Chemistry and Biochemistry, National Chung Cheng University, 168 University Road, Min‐Hsiung, Chia‐Yi (Taiwan), Fax: (+886)5‐2721040;2. Institute for Microstructural Sciences and Institute for Biological Sciences, National Research Council Canada, Ottawa, ON K1A 0R6 (Canada), Fax: (+1)?952‐6337 |