Fig. 4. Tracks of the maximum light intensity of three different initially isotropic particles moving at the surface of a 1 mM Ru(bpy)3(PF6)2, 20 mM K2S2O8, 20 mM H2SO4 in H2O/ACN (1/1) solution; (a) polymer modified isotropic Mg/EP Janus particle, (b) and (c) unmodified particles. Inset: optical pictures of the particles. Global time of the experiment 90 seconds.
