Research Article

DNA Modified with Metal Nanoparticles: Preparation and Characterization of Ordered Metal-DNA Nanostructures in a Solution and on a Substrate

Figure 15

CD spectra (a) of DNA in 5 mM NaNO3 (1), with the addition of NaBH4 (2) and AgNO3 (3) and after the reduction of Ag+ (4), (DNA) = 2.4 × 10−4 M(P), (AgNO3) = 6.7 × 10−5 M, and (NaBH4) = 5.6 × 10−4 M. The dependence of the reduced viscosity of DNA solution on DNA concentration (b) without (I) and with Ag-NPs-2 (II, III) in 1 hour after the reduction (II) and in 2 days after the storage of solution II at 4°C (III).
(a)
(b)