Figure 1. Schematic illustration of the three-wavelength modulated multi-directional walker robot.
Just like one reviewer said, “controlling the locomotion by turning on and off the light is easier than scanning the light on the actuator with right speed and in right position.” We believe that this strategy could be further adopted to build four or even more independent photothermal conversion systems in hierarchical structured polymeric matrices to synthesize multi-wavelength modulated soft actuators with more functionalities. In our lab, this selective stimulation strategy is now applied in fabricating microscale soft robots with complex actuation modes through 3D printing technique. More exciting results will be reported in the near future.
In phytochrome Agp2 ultrafast proton-transfer occurs from the chromophore to a hydrogen-bonded water network in the protein prior to photoisomerization. The altered hydrogen bonds persist after photoisomerization and trigger together with the new chromophore geometry the activated protein conformation.
We have unearthed a new artificial organelle known as “Concentriosome” to carry out spatiotemporal enzymatic cascade reactions in solution and regiospecific chemical events using the standing waves that in turn are generated by the Faraday Instability setup.
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