1. National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, P. R. China
2. College of Biomedical Engineering, Sichuan University, Chengdu 610064, P. R. China
3. Department of Dermatology, West China Hospital, Sichuan University, Chengdu 610041, P. R. China
4. Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, P. R. China