[1] Shanghai Jiao Tong Univ, Sch Pharm, Shanghai 200240, Peoples R China
[2] Natl Univ Singapore, Yong Loo Lin Sch Med, Dept Diagnost Radiol, Singapore 119074, Singapore
[3] Natl Univ Singapore, Yong Loo Lin Sch Med, Dept Surg, Singapore 119074, Singapore
[4] Natl Univ Singapore, Yong Loo Lin Sch Med, Dept Chem & Biomol Engn, Singapore 119074, Singapore
[5] Natl Univ Singapore, Yong Loo Lin Sch Med, Dept Biomed Engn, Singapore 119074, Singapore
[6] Natl Univ Singapore, Coll Design & Engn, Singapore 119074, Singapore
[7] Natl Univ Singapore, Yong Loo Lin Sch Med, Nanomed Translat Res Program, Singapore 117597, Singapore
[8] Natl Univ Singapore, Clin Imaging Res Ctr, Ctr Translat Med, Yong Loo Lin Sch Med, Singapore 117599, Singapore
[9] ASTAR, Inst Mol & Cell Biol, Singapore 138673, Singapore