1. Department of Materials and Optoelectronic Science, Center of Crystal Research, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
2. Institute of Medical Science and Technology, College of Medicine, National Sun Yat-sen University, Kaohsiung 804201, Taiwan
3. Polymeric Biomaterials Laboratory, Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
4. Department of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
5. Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
6. Chemistry Department, Faculty of Science, Assiut University, Assiut 71515, Egypt