1. Department of Chemistry, National Sun Yat-sen University, No. 70 Lienhai Road, Kaohsiung 80424, Taiwan
2. Department of Chemistry, Tunghai University, Taichung 40704, Taiwan
3. Laboratory of Nanoscale Biology, Institute of Bioengineering, School of Engineering, EPFL, Lausanne 1015, Switzerland
4. Department of Medical Laboratory Science and Biotechnology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan