Yu Ting, Zhu Yanwu, Xu Xiaojing, Yeong Kuan-Song, Shen Zexiang, Chen Ping, Lim Chwee-Teck, Thong John Thiam-Leong, Sow Chorng-Haur
Department of Physics, Faculty of Science, National University of Singapore, 2 Science Drive 3, Singapore 117542, Singapore.
Small. 2006 Jan;2(1):80-4. doi: 10.1002/smll.200500234.