1. Department of Chemistry; National Tsing Hua University; Hsinchu 30013 Taiwan
2. Institute of Biological Chemistry; Academia Sinica; Taipei Taiwan
3. Department of Life Sciences; National Central University; Taoyuan Taiwan
4. Department of Chemistry; National Changhua University of Education; Changhua Taiwan
5. National Synchrotron Radiation Research Center Hsinchu; Taiwan
6. Department of Biotechnology; Yuanpei University; Hsinchu Taiwan
7. Department of Chemistry; McGill University; 801 Sherbrooke Street West Montreal QC H3A2K6 Canada