Yu Le, Wu Hao Bin, Lou Xiong Wen David
School of Chemical & Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore.
Adv Mater. 2013 Apr 24;25(16):2296-300. doi: 10.1002/adma.201204912. Epub 2013 Feb 19.