@article {1340357, title = {Neutrophil Chemotaxis in Linear and Complex Gradients of Interleukin-8 formed in a Microfabricated Device}, journal = {Nature Biotechnology}, volume = {20}, year = {2002}, note = {808}, month = {1/02}, pages = {826-830}, author = {Jeon, N. L. and Baskaran, H. and Dertinger, S. K. W. and Whitesides, G. M. and Van de Water, L. and Toner, M.} }