[1] Sichuan Univ, Coll Biomed Engn, Natl Engn Res Ctr Biomat, Chengdu 610064, Peoples R China
[2] Chengdu Univ, Sch Preclin Med, Chengdu, Peoples R China
[3] Wenzhou Univ, Coll Chem & Mat Engn, Wenzhou 325027, Peoples R China
[4] Sichuan Univ, West China Hosp, Huaxi MR Res Ctr HMRRC, Dept Radiol,Funct & Mol Imaging Key Lab Sichuan Pr, Chengdu 610041, Peoples R China