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We report robust control over the dynamic assembly, disassembly, and reconfiguration of light‐activated molybdenum disulfide (MoS2) colloidal motor swarms with features not possible in equilibrium systems. A photochemical reaction produces chemical gradients across the MoS2 colloidal motors to drive them to move. Under illumination of a gradient light, these colloidal motors display a positive phototactic...
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