Research / 2022 / Article / Fig 4

Research Article

Nanozyme-Triggered Cascade Reactions from Cup-Shaped Nanomotors Promote Active Cellular Targeting

Figure 4

Enhanced diffusion of GNCs-Pt in long term with different H2O2 concentrations (0, 1, 2, 3, 5, and 10%). (a) Illustration of the self-electrophoresis of a GNC-Pt via catalyzing the decomposition of H2O2. A gradient of electric charge density will be generated across the GNC-Pt as reaction proceeds. Electroosmotic flow induced by the charge imbalance will then drive GNCs-Pt to move in the direction opposite to that of the fluid flow (red arrow). (b) Trajectories (for 10 s), (c) instantaneous velocity, and (d) EA-TA-MSD of GNCs-Pt at different H2O2 concentrations. (e) Dependence of of GNCs-Pt with different H2O2 concentrations. (f) The distributions of of GNCs-Pt with different H2O2 concentrations. The dashed lines are the fitted curve based on Gaussian function.