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Pàgina inicial > Articles > Articles publicats > Enzyme-Powered Porous Micromotors Built from a Hierarchical Micro- And Mesoporous UiO-Type Metal-Organic Framework |
Data: | 2020 |
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. |
Ajuts: | Agencia Estatal de Investigación RTI2018-095622-B-I00 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-238 European Commission 866348 Ministerio de Ciencia, Innovación y Universidades SEV-2017-0706 Ministerio de Economía y Competitividad SEV-2014-0425 Ministerio de Ciencia, Innovación y Universidades PRE2018-083712 |
Drets: | Tots els drets reservats. |
Llengua: | Anglès |
Document: | Article ; recerca ; Versió acceptada per publicar |
Matèria: | Enzymatic generation ; Enzyme catalase ; Free spaces ; Functional testing ; Hierarchical pore systems ; Microporous ; Oxygen bubbles ; Self propulsion ; Biocatalysis ; Catalase ; Metal-Organic Frameworks ; Porosity |
Publicat a: | Journal of the American Chemical Society, Vol. 142, Num. 50 (2020) , p. 20962-20967, ISSN 1520-5126 |
Postprint 9 p, 4.4 MB |