1. Shaanxi Key Laboratory of Degradable Biomedical Materials and Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Taibai North Road 229, Xi'an, Shaanxi 710069, China
2. Biotech & Biomed Research Institute, Northwest University, Taibai North Road 229, Xi'an, Shaanxi 710069, China