I just came across these two recent papers and thought that they were interesting. This is especially the case for those that are working in the area of integrating DPN with biological studies.
Asymmetric Peptide Nanoarray Surfaces for Studies of Single Cell Polarization
http://pubs.acs.org/cgi-bin/article.cgi/jacsat/2008/130/i11/html/ja711016m.html. D.K. Hoover, E.W.L. Chan and M.N. Yousaf J. Am. Chem. Soc. 2008, 130, 3280-3281
Electroactive nanoarrays for Biospecific Ligand Mediated Cell Adhesion
http://www3.interscience.wiley.com/cgi-bin/fulltext/116327705/HTMLSTART. D.K. Hoover, E.J. Lee, E.WL. Chan and M.N. Yousaf ChemBioChem 2007, 8, 1920-1923