Highly Selective, Electrically Conductive Monolayer of Nanoparticles on Live Bacteria

Authors

V Berry, Virginia Polytechnic Institute and State University
RangaSwamy S, Virginia Polytechnic Institute and State University
Ravi F. Saraf, University of Nebraska-LincolnFollow

Date of this Version

4-15-2004

Comments

© 2004 American Chemical Society. The American Chemical Society allows the posting only the title, abstract, tables, and figures from articles appearing in the Nano Letters. This article was published on web 04/15/2004 Nano Lett., Vol. 4, No. 5, 2004 (939-942) 10.1021/nl0495716 © 2004 American Chemical Society DOI Linkor ACS Publications Home page

Abstract

Using specific peptide−bacteria affinity, a monolayer of 30 nm Au particle is selectively deposited on live bacteria surface to produce electrically conducting bridges spanning over 12 μm. The conductivity of the monolayer network is further improved by over 10-fold by “electric-field annealing”. The annealing process is explained by a percolation model.