Wang Yucai, Wang Yi, Zhou Fengbo, Kim Paul, Xia Younan
The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA 30332, USA.
Small. 2012 Dec 21;8(24):3769-73. doi: 10.1002/smll.201201983. Epub 2012 Sep 12.