How does buoyancy of hydrogel microrobots affect their magnetic propulsion in liquids? (Articolo in rivista)

Type
Label
  • How does buoyancy of hydrogel microrobots affect their magnetic propulsion in liquids? (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.4798508 (literal)
Alternative label
  • Palagi, S; Mazzolai, B; Innocenti, C; Sangregorio, C; Beccai, L (2013)
    How does buoyancy of hydrogel microrobots affect their magnetic propulsion in liquids?
    in Applied physics letters; American Institute Of Physics (AIP), Melville (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Palagi, S; Mazzolai, B; Innocenti, C; Sangregorio, C; Beccai, L (literal)
Pagina inizio
  • 124102 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 102 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 12 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1 ] Ist Italiano Tecnol, Ctr MicrobioRobot SSSA, I-56025 Pontedera, Italy 2 ] Scuola Super Sant Anna, BioRobot Inst, I-56025 Pontedera, Italy 3 ] Univ Florence, INSTM, I-50019 Sesto Fiorentino, Italy 4 ] Univ Florence, Dept Chem, I-50019 Sesto Fiorentino, Italy (literal)
Titolo
  • How does buoyancy of hydrogel microrobots affect their magnetic propulsion in liquids? (literal)
Abstract
  • Gravity compensation is a key requirement for achieving three-dimensional navigation of magnetic microrobots in fluids. Here we present a brief theoretical introduction to the issue of gravity compensation in the case of magnetic \"pulling\" propulsion, explicitly highlighting the constraints it introduces. Therefore, we evaluate the advantages that quasi-neutral buoyancy gives to hydrogel microrobots, demonstrating that despite their relatively weak magnetic properties, for certain size/velocity ranges they could be more easily and efficiently propelled than state-of-the-art metal microrobots. Hence, our analysis endorses the adoption of smart polymers, such as stimuli-responsive hydrogels, for developing truly multifunctional magnetic microrobots. (literal)
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