Figure 2.
(a) UV-Vis spectra of the AuNPs suspension treated with salt in the presence of assembled and non assembled DNA targets. The effects of unmodified and thiolated probes on the absorption intensity were also shown. (b) DLS graph of AuNPs size distribution in the presence of unmodified probes and non assembled targets. (c) DLS graph of AuNPs size distribution in the presence of thiolated probes and self-assembled targets. Red: citrate-capped AuNPs, Green: AuNPs mix with modified or unmodified probes, Blue: AuNPs mix with assembled or non assembled DNA targets.