1. Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 China
2. Jilin Biomedical Polymers Engineering Laboratory Changchun 130022 China
3. Department Gastrointestinal Surgery China–Japan Union Hospital of Jilin University Changchun 130021 China
4. University of Chinese Academy of Sciences Beijing 100039 China
5. University of Science and Technology of China Hefei 230026 China