1. School of Pharmacy National Cheng Kung University No.1, University Rd. Tainan City 70101 Taiwan
2. Department of Chemical Engineering and Hierarchical Green-Energy Materials Research Center National Cheng Kung University No.1, University Rd. Tainan City 70101 Taiwan
3. Department of Chemistry University of Houston 3585 Cullen Boulevard 112 Houston TX 77204-5003 USA
4. National Synchrotron Radiation Research Center No. 101, Hsin Ann Rd. Hsinchu 30076 Taiwan