Figure 3.
Self-phoretic Janus microswimmers. (A) SEM image of silica–Pt Janus particles. (B) External magnetic fields to guide particles. (C) Magnetic caps used to transport paramagnetic particles. (D) Transport of cargo by single/double Janus particle configuration. Panels A and C reproduced with permission from ref (44). Copyright 2012 American Chemical Society. Panel B reproduced with permission from ref (45). Copyright 2015 Intech. Panel D reproduced with permission from ref (46). Copyright 2011 Royal Society of Chemistry.