Zhonglin Wang and co-workors mimic the toe of gecko and produce an adhesive surface that can hold a 100kg person with a normal hand area.
Liangti Qu, Liming Dai, Morley Stone, Zhenhai Xia, and Zhong Lin Wang
Science 10 October 2008 322: 238-242 [DOI: 10.1126/science.1159503]