1. Collage of Biomass Chemistry and Engineering Sichuan University Chengdu 610065 China
2. National Engineering Research Center of Clean Technology in Leather Industry Sichuan University Chengdu 610065 China
3. National Engineering Research Center for Biomaterials Sichuan University Chengdu 610064 China
4. Chengdu Daxan Innovative Medical Tech. Co., Ltd Chengdu 611135 China