We thank Ted Cox, Miguel Gaspar, Juliana Malinverni, Ned Wingreen, Pascal Silberzan, and Tom Silhavy for comments, discussions, and support, and Peter Wolanin for supplying the E. coli GFP construct. This work was supported by Air Force Office of Scientific Research Grant FA9550-05-01-0365, National Institutes of Health Grant HG01506, National Science Foundation Nanobiology Technology Center Grant BSCECS9876771, and the Cornell Nano-Scale Science and Technology Facility (National Science Foundation Grant ECS-9731293).
Abbreviations: 0D, zero-dimensional; 1D, one-dimensional; B&W, "black and white"; MHP, microhabitat patch.
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Freely available online through the PNAS open access option.
Author contributions: J.E.K. and P.G. contributed equally to this work; J.E.K., P.G., C.M., S.P., and R.H.A. designed research; J.E.K., P.G., C.M., S.P., and R.H.A. performed research; J.E.K. and P.G. contributed new reagents/analytic tools; J.E.K., P.G., C.M., and R.H.A. analyzed data; and J.E.K., P.G., and R.H.A. wrote the paper.
Present address: Division of Nano Sciences, Ewha Womans University, Seoul 120-750, Korea.
The authors declare no conflict of interest.
© 2006 by The National Academy of Sciences of the USA