[1]Fudan Univ, Dept Macromol Sci, Shanghai 200433, Peoples R China;
[2]Fudan Univ, Adv Mat Lab, Shanghai 200433, Peoples R China;
[3]Shanghai Jiao Tong Univ, Ruijin Hosp, Dept Gen Surg, Sch Med, Shanghai 200025, Peoples R China