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dc.contributor.authorCalero, Carles
dc.contributor.authorGarcía Torres, José Manuel
dc.contributor.authorOrtiz, Antonio
dc.contributor.authorSagues, Francesc
dc.contributor.authorPagonabarraga, Ignacio
dc.contributor.authorTierno, Pietro
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciència i Enginyeria de Materials
dc.identifier.citationCalero, C. [et al.]. Propulsion and energetics of a minimal magnetic microswimmer. "Soft Matter", 28 Juliol 2020, núm. 28, p. 6673-6682.
dc.description.abstractIn this manuscript we describe the realization of a minimal hybrid microswimmer, composed of a ferromagnetic nanorod and a paramagnetic microsphere. The unbounded pair is propelled in water upon application of a swinging magnetic field that induces a periodic relative movement of the two composing elements, where the nanorod rotates and slides on the surface of the paramagnetic sphere. When taken together, the processes of rotation and sliding describe a finite area in the parameter space, which increases with the frequency of the applied field. We develop a theoretical approach and combine it with numerical simulations, which allow us to understand the dynamics of the propeller and explain the experimental observations. Furthermore, we demonstrate a reversal of the microswimmer velocity by varying the length of the nanorod, as predicted by the model. Finally, we determine theoretically and in experiments the Lighthill's energetic efficiency of this minimal magnetic microswimmer.
dc.format.extent10 p.
dc.publisherRoyal Society of Chemistry
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Física
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials
dc.subject.lcshCondensed matter
dc.titlePropulsion and energetics of a minimal magnetic microswimmer
dc.subject.lemacMatèria condensada
dc.contributor.groupUniversitat Politècnica de Catalunya. BBT - Biomaterials, Biomecànica i Enginyeria de Teixits
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
local.citation.authorCalero, C.; Garcia-Torres, J.; Ortiz-Ambriz, A.; Sagues, F.; Pagonabarraga, I.; Tierno, P.
local.citation.publicationNameSoft Matter

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