Jingjing Xie, Rongli zhao, Yusheng Lu, Jichuang Wang, Songen Gu, Lee Jia*. Re-engineering PAMAM dendrimer for its multivalent binding to colon cancer cells HT29. Ministry of Science and Technology (MOST) and Chinese Academy of Sciences, The 450th Xiangshan-Science Conference and the 3th U.S.-China Symposium on Cancer Nanotechnology and Nanomedicine, Beijing, China, December 5-7, 2012.