DNA-Templated Photoinduced Silver Deposition

We are presenting a photography-derived methodology to achieve the photoreduction of Ag+−DNA complexes. λ-Phage DNA was first loaded with silver ions, then irradiated with UV light at 254 nm. The DNA bases acted as light sensitizers, promoting the in situ reduction of Ag+ and the formation of metall...

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Bibliographic Details
Published in:Journal of the American Chemical Society 2005-08, Vol.127 (32), p.11216-11217
Main Authors: Berti, Lorenzo, Alessandrini, Andrea, Facci, Paolo
Format: Article
Language:English
Subjects:
Biological and medical sciences
DNA - chemistry
DNA - radiation effects
Fundamental and applied biological sciences. Psychology
Microscopy, Atomic Force
Molecular biophysics
Nanostructures - chemistry
Oxidation-Reduction
Photochemistry. Photosynthesis. Bioluminescence
Radiation-biomolecule interaction
Silver - chemistry
Templates, Genetic
Ultraviolet Rays
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Summary:We are presenting a photography-derived methodology to achieve the photoreduction of Ag+−DNA complexes. λ-Phage DNA was first loaded with silver ions, then irradiated with UV light at 254 nm. The DNA bases acted as light sensitizers, promoting the in situ reduction of Ag+ and the formation of metallic silver clusters. Three different approaches will illustrate this procedure, and silver nanoparticle chains will be grown along a DNA template in a rapid and specific way.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja052461w