Highly Selective, Electrically Conductive Monolayer of Nanoparticles on Live Bacteria

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”. Th...

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Bibliographic Details
Published in:Nano letters 2004-05, Vol.4 (5), p.939-942
Main Authors: Berry, V, Rangaswamy, S, Saraf, R. F
Format: Article
Language:English
Subjects:
Cold working, work hardening
annealing, post-deformation annealing, quenching, tempering recovery, and crystallization
Cold working, work hardening
annealing, quenching, tempering, recovery, and recrystallization
textures
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Nanopowders
Nanoscale materials and structures: fabrication and characterization
Physics
Treatment of materials and its effects on microstructure and properties
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Summary: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.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl0495716