Abstract
Colloidal motors with multimode propulsion have attracted considerable attention because of enhanced transportability. It is a great challenge to fabricate colloidal motors powered by a single engine for multimode synergistic propulsion. Herein, we report on Janus versatile polymer nanoplatforms integrating various functionalities via tetrazole linkages for light-regulated multimode synergistic propulsion in the liquid. The presence of tetrazole linkages in the polymers endows the nanoparticles with various photoresponsive capabilities. A sole energy source (ultraviolet or visible light) simultaneously activates photocatalytic N2 release and photothermal conversion within the tetrazole-containing polymer phase at one side of asymmetric nanoparticles for converting light energy into photothermal/photocatalytic propulsion independent of the surrounding chemical medium. The photoactivated locomotion using tetrazoles as light-triggered fuels highly corresponds to light wavelengths, light powers and tetrazole contents. The tetrazole linkages capable of incorporating various functionalities to the polymer nanoparticles allow on-demand customizing of the colloidal motors, showing great potential in bio-applications.
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