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. 2021 Oct 15;118(42):e2104481118. doi: 10.1073/pnas.2104481118

Fig. 1.

Fig. 1.

Schematic illustration and the corresponding representative trajectory image obtained from Movie S1 showing the (A, B) positive phototaxis, (C, D) negative phototaxis, and (E, F) Brownian-like motion under weak (0.4 W/cm2), strong (1.2 W/cm2), and medium light (0.8 W/cm2), respectively. Inset in (B): the SEM image of the C3N4/PPyNP-based MNM. (G) Schematic illustration and (H) the representative trajectory image obtained from Movie S1 showing the reciprocating motion of the C3N4/PPyNP-based MNM when adjusting the irradiation light intensity. The light is applied from the left side with the incident light angle of 30°.