Fang Yueping, Pang Qi, Wen Xiaogang, Wang Jiannong, Yang Shihe
Department of Chemistry, Institute of Nano Science and Technology, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
Small. 2006 May;2(5):612-5. doi: 10.1002/smll.200500379.