Figure 6
From: Microscopic Differentiation of Plasmonic Nanoparticles for the Ratiometric Read-out of Target DNA
(a,b and c) show typical DFM images of the coding-AuNRs and the ISNSs when the concentration of target DNA is 100, 50, and 20 fM, respectively, and the number ratio is approximately 3.0, 1.5, and 0.6. The scale bar is 20 µm. Graph (d) shows the changes of the concentration of the coding-AuNRs with that of the concentration of the target DNA. The black dash dotted line shows the function y = x, and the blue line indicates the background signal.
