Affiliation: | 1. Bioengineering College of Chongqing University and “111 Project” Laboratory of Biomechanics, Tissue Repair of Ministry of Education , Chongqing, China wangbc@cqu.edu.cn;3. Bioengineering College of Chongqing University and “111 Project” Laboratory of Biomechanics, Tissue Repair of Ministry of Education , Chongqing, China;4. Center for Surface Science and Plasma Technology, Department of Mechanical and Aerospace Engineering , University of Missouri , Columbia, Missouri, USA |