Fusion and fission (IMAGE)

University of Warsaw, Faculty of Physics

Fusion and fission

Caption

Fusion and fission dynamics of switchable photoresponsive colloids. Collective effects in the dynamics of new catalytic particles described in the Nature Communications paper. Arrows depict the direction of motion of the particles. The colour of the lightning bold describes the type of illumination (blue for UV light, green for green visible light). (a-f) Fusion: time-evolution and dynamical growth of clusters leading to the formation of a single cluster. (g-l) Fission: after the change in illumination, the direction of flow created by individual particles reverses, and the large cluster explodes, creating small islands of particles. (m-p) Red arrows point towards the titanium dioxide hemisphere (bright part of the particle) and indicate the direction of motion. (q-t) Cyan arrows show the direction of motion under the change to green light illumination. Scale bar is 5 micrometres. (Source: Nature Communications 11, 2628 (2020)).

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Source: Nature Communications 11, 2628 (2020)

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The image may only be used with the following caption: Source: Nature Communications 11, 2628 (2020)

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