1. Institute of Polymer Science and Engineering, National Taiwan University; Taipei 106 Taiwan
2. Department of Chemical Engineering; National Taiwan University; Taipei 106 Taiwan
3. Institute of Biomedical Engineering; National Taiwan University; Taipei 100 Taiwan
4. Department of Medicinal and Applied Chemistry; Kaohsiung Medical University; Kaohsiung 807 Taiwan
5. Orthopaedic Research Center, College of Medicine; Kaohsiung Medical University; Kaohsiung Taiwan