Catalytic Nanomotors: Self-Propelled Sphere Dimers

dc.creatorValadares, LF
dc.creatorTao, YG
dc.creatorZacharia, NS
dc.creatorKitaev, V
dc.creatorGalembeck, F
dc.creatorKapral, R
dc.creatorOzin, GA
dc.date2010
dc.dateFEB 22
dc.date2014-11-17T13:42:25Z
dc.date2015-11-26T17:38:31Z
dc.date2014-11-17T13:42:25Z
dc.date2015-11-26T17:38:31Z
dc.date.accessioned2018-03-29T00:20:09Z
dc.date.available2018-03-29T00:20:09Z
dc.identifierSmall. Wiley-v C H Verlag Gmbh, v. 6, n. 4, n. 565, n. 572, 2010.
dc.identifier1613-6810
dc.identifierWOS:000275260100012
dc.identifier10.1002/smll.200901976
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/78506
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/78506
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/78506
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1286229
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionExperimental and theoretical studies of the self-propelled motional dynamics of a new genre of catalytic sphere dimer, which comprises a non-catalytic silica sphere connected to a catalytic platinum sphere, are reported for the first time. Using aqueous hydrogen peroxide as the fuel to effect catalytic propulsion of the sphere dimers, both quasi-linear and quasi-circular trajectories are observed in the solution phase and analyzed for different dimensions of the platinum component. In addition, well-defined rotational motion of these sphere dimers is observed at the solution-substrate interface. The nature of the interaction between the sphere dimer and the substrate in the aqueous hydrogen peroxide phase is discussed. In computer simulations of the sphere dimer in solution and the solution-substrate interface, sphere-dimer dynamics are simulated using molecular-dynamics methods and solvent dynamics are modeled by mesoscopic multiparticle collision methods taking hydrodynamic interactions into account. The rotational and translational dynamics of the sphere dimer are found to be in good accord with the predictions of computer simulations.
dc.description6
dc.description4
dc.description565
dc.description572
dc.descriptionGovernment of Canada Research Chair in Materials Chemistry and Nanochemistry
dc.descriptionNatural Sciences and Engineering Research Council (NSERC) of Canada
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.languageen
dc.publisherWiley-v C H Verlag Gmbh
dc.publisherWeinheim
dc.publisherAlemanha
dc.relationSmall
dc.relationSmall
dc.rightsfechado
dc.rightshttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dc.sourceWeb of Science
dc.subjectmesoscopic dynamics
dc.subjectnanomotors
dc.subjectnanorotors
dc.subjectparticle-surface interactions
dc.subjectsphere dimers
dc.subjectAutonomous Movement
dc.subjectHalf-shells
dc.subjectNanomachines
dc.subjectNanorotors
dc.subjectPropulsion
dc.subjectMechanism
dc.subjectSurfaces
dc.titleCatalytic Nanomotors: Self-Propelled Sphere Dimers
dc.typeArtículos de revistas


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