Chin Chong Yap, Christophe Brun, Dunlin Tan, Hong Li, Edwin Hang Tong Teo*, Dominique Baillargeat and Beng Kang Tay
* Corresponding author: Edwin Hang Tong Teo HTTEO@ntu.edu.sg
Nanoscale Research Letters 2012, 7:105 doi:10.1186/1556-276X-7-105