1. College of Polymer Science and Engineering, Department of Ultrasound West China Hospital Sichuan University Chengdu 610065 China
2. State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 China
3. College of Biomass Science and Engineering Sichuan University Chengdu 610065 China
4. Med‐X Center for Materials Sichuan University Chengdu 610041 China