1. Department of Chemical Engineering National Chung Hsing University 250 Kuo Kuang Road, Taichung 402, Taiwan (R.O.C.)
2. Department of Chemical Engineering; Institute of Biomedical Engineering National Chung Hsing University 250 Kuo Kuang Road, Taichung 402, Taiwan (R.O.C.)
3. Department of Orthopaedics National Taiwan University Hospital 7 Chung‐Shan South Road, Taipei 100, Taiwan (R.O.C.)