Enzyme-Powered Porous Micromotors Built from a Hierarchical Micro- And Mesoporous UiO-Type Metal-Organic Framework

Yunhui Yang, Xavier Arqué, Tania Patiño, Vincent Guillerm, Pascal Raphael Blersch, Javier Pérez-Carvajal, Inhar Imaz, Daniel Maspoch Comamala, Samuel Sánchez Ordóñez

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    Resum

    Here, we report the design, synthesis, and functional testing of enzyme-powered porous micromotors built from a metal-organic framework (MOF). We began by subjecting a presynthesized microporous UiO-type MOF to ozonolysis, to confer it with mesopores sufficiently large to adsorb and host the enzyme catalase (size: 6-10 nm). We then encapsulated catalase inside the mesopores, observing that they are hosted in those mesopores located at the subsurface of the MOF crystals. In the presence of H2O2 fuel, MOF motors (or MOFtors) exhibit jet-like propulsion enabled by enzymatic generation of oxygen bubbles. Moreover, thanks to their hierarchical pore system, the MOFtors retain sufficient free space for adsorption of additional targeted species, which we validated by testing a MOFtor for removal of rhodamine B during self-propulsion.
    Idioma originalAnglès
    Pàgines (de-a)20962-20967
    Nombre de pàgines6
    RevistaJournal of the American Chemical Society
    Volum142
    Número50
    DOIs
    Estat de la publicacióEn premsa - 2020

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