1. Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan, Republic of China
2. Development Center for Biotechnology, No. 101, Lane 169, Kangning Street, Xizhi City, Taipei County, Taiwan 221, Republic of China
3. Department of Applied Chemistry, National Chiayi University, No. 300, Syuefu Rd., Chiayi City, Taiwan 60004, Republic of China