Yao Qiaofeng, Yu Yong, Yuan Xun, Yu Yue, Xie Jianping, Lee Jim Yang
Department of Chemical and Biomolecular Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260, Singapore.
Small. 2013 Aug 26;9(16):2696-701. doi: 10.1002/smll.201203112. Epub 2013 Feb 28.