Figure 1.
UV-Vis spectra of AuNPs aggregated with different NaCl concentrations (a). Hydrodynamic radius difference between aggregated and as-prepared nanoparticles measured with DLS as a function of NaCl concentration (b).
Figure 2.
UV-vis spectra of AuNPs/DNA solution for different NaCl concentrations obtained with “no salt aging” (a) and “salt aging” (b) procedure.
The DNA concentration was 0.1 μM.
Figure 3.
Autocorrelation functions g2 (t) of as-prepared AuNPs solution and of DNA/AuNPs solution at 100 mM NaCl, for “salt aging” and “no salt aging” procedure (a). Hydrodynamic radius difference (ΔRH) versus the NaCl concentration for “salt aging” and “no salt aging” procedure (b). The DNA concentration was 0.1 μM.
Figure 4.
Hydrodynamic radius difference (ΔRH) versus the NaCl salt solution for different DNA concentrations, measured with “no salt aging” (a) and “salt aging” (b) procedure.