1. Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering; School of Basic Medical Science; School of Biomedical Engineering; Southern Medical University; Guangdong Guangzhou 510515 P. R. China
2. Department of Mechanical Engineering; Faculty of Engineering; Department of Biochemistry & Biomedical Genetics; Faculty of Medicine; University of Manitoba; Winnipeg Manitoba R3T 2N2 Canada
3. Institute of Burn Research; Southwest Hospital; Army Medical University; Chongqing 400038 China
4. Department of Biosystem Engineering; Faculty of Agriculture; University of Manitoba; Winnipeg Manitoba R3T 2N2 Canada
5. Department of Chemical and Biochemical Engineering; Faculty of Engineering; University of Western Ontario; London Ontario N6A 5B9 Canada