Photocatalytic micromotors are light-induced, chemically powered micromachines based on photocatalytic materials, activated by light illumination, and have redox reactions with environmental solutions to produce chemical gradients and bubbles that propel the micromachines through self-diffusiophoresis, self-electrophoresis, and bubble recoil. Due to the fact that excitation light relates largely to the bandgaps of selected materials, the development of photocatalytic micromotors has experienced an evolution from ultraviolet-light-activated to visible-light-activated and potentially biocompatible systems. Furthermore, due to the strong redox capacity and physical effects caused by the products or product gradients, photocatalytic micromotors have applications in environmental remediation, micropumps, reversible assembly, transportation, and biomimicry.
Bibliographical noteFunding Information:
This work was supported by the project Advanced Functional Nanorobots (Reg. CZ.02.1.01/0.0/0.0/15_003/0000444 financed by the EFRR). The authors acknowledge A*STAR (Grant No. SERC A1783c0005) (Singapore). L.K. acknowledges the Scholarship Fund from China Scholarship Council (CSC).
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All Science Journal Classification (ASJC) codes
- Materials Science(all)