Figure 2

iDFM of the silver nanoprobes during the light induced breakage of Ag-DTC bond.
DFM images of (a) light-induced and (b) natural breakage without light irradiation of Ag-DTC-DA in 0, 5, 10 and 20 min, respectively. The images in square are enlarged one of the nearby nanoparticles pointed with arrows. (c) The fast scattering intensity change process of the red nanoprobe (red square), blue nanoprobe (blue circle) in (a) and the slow scattering intensity change process red nanoprobe (wine square), blue nanoprobe (cyan circle) in (b). (d) The scattering intensity change process of probes in (a) with an enlarged horizontal axis (within 20 min).