DNA-templated photoinduced silver deposition.
We are presenting a photography-derived methodology to achieve the photoreduction of Ag+-DNA complexes. lambda-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.
Berti
Lorenzo
L
National Research Center on nanoStructures and bioSystems at Surfaces S3, INFM-CNR, Via G. Campi 213/A, 41100 Modena, Italy. berti.lorenzo@unimo.it
Alessandrini
Andrea
A
Facci
Paolo
P
D004247:DNA / Q000737:chemistry / Q000528:radiation effects*; D018625:Microscopy, Atomic Force; D049329:Nanostructures / Q000737:chemistry*; D010084:Oxidation-Reduction; D012834:Silver / Q000737:chemistry*; D013698:Templates, Genetic; D014466:Ultraviolet Rays
D012834:Silver; D004247:DNA