Fig. 3From: Atomic Layer Deposition of Pt Nanoparticles for Microengine with Promoted Catalytic Motion a–d Selected motion images of SiO/SiO2/Pt microengines at a 0, b 0.1, c 0.2, and d 0.3 s in 10 % H2O2 solution. e–h Trajectories of the four microengines decorated with Pt nanoparticles: e SiO/SiO2, f Ti/SiO2, g Ti/Co, and h SiO2/Ti. The red trajectories were recorded over a time period of 0.5 s in 10 % H2O2 Back to article page