Figure 4.

Representative x,y plots of particles displaying motion in 10% w/v H₂O₂, extracted from 30 s videos at 33 fps for a) silica colloids without catalyst and active colloids prepared from b) PVD to 10 nm thickness. c) Solution‐based growth of Pt from H₂PtCl₆ to a thickness of 2.65 nm.