1. Department of Chemistry; National Sun Yat-sen University; 70, Lien-hai Road Kaohsiung 80424 Taiwan
2. Department of Biomedical Science and Environmental Biology; Center for Biomarkers and Biotech Drugs; Kaohsiung Medical University; Kaohsiung 80708 Taiwan
3. School of Pharmacy, College of Pharmacy; Kaohsiung Medical University; Kaohsiung 80708 Taiwan