1. State Key Laboratory of Chemical Resource EngineeringBeijing University of Chemical Technology Beijing 100029 China
2. Key Lab of Biomedical Materials of Natural MacromoleculesBeijing University of Chemical TechnologyMinistry of Education Beijing 100029 China
3. Beijing Laboratory of Biomedical MaterialsBeijing Advanced Innovation Center for Soft Matter Science and EngineeringBeijing University of Chemical Technology Beijing 100029 China