Hydrodynamic interactions in two dimensions (Articolo in rivista)

Type
Label
  • Hydrodynamic interactions in two dimensions (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Alternative label
  • Di Leonardo, R; Keen, S; Ianni, F; Leach, J; Padgett, MJ; Ruocco, G (2008)
    Hydrodynamic interactions in two dimensions
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Di Leonardo, R; Keen, S; Ianni, F; Leach, J; Padgett, MJ; Ruocco, G (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 78 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • \"[Di Leonardo, R.; Ianni, F.; Ruocco, G.] Univ Roma La Sapienza, Dipartimento Fis, CNR, INFM,CRS SOFT, I-00185 Rome, Italy; [Keen, S.; Leach, J.; Padgett, M. J.] Univ Glasgow, Dept Phys & Astron, Glasgow, Lanark, Scotland; [Ianni, F.; Ruocco, G.] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy (literal)
Titolo
  • Hydrodynamic interactions in two dimensions (literal)
Abstract
  • We measure hydrodynamic interactions between colloidal particles confined in a thin sheet of fluid. The reduced dimensionality, compared to a bulk fluid, increases dramatically the range of couplings. Using optical tweezers we force a two body system along the eigenmodes of the mobility tensor and find that eigenmobilities change logarithmically with particle separation. At a hundred radii distance, the mobilities for rigid and relative motions differ by a factor of 2, whereas in bulk fluids, they would be practically indistinguishable. A two dimensional counterpart of Oseen hydrodynamic tensor quantitatively reproduces the observed behavior, once the relevant boundary conditions are recognized. These results highlight the importance of dimensionality for transport and interactions in colloidal systems and proteins in biological membranes. (literal)
Prodotto di
Autore CNR
Insieme di parole chiave

Incoming links:


Autore CNR di
Prodotto
Insieme di parole chiave di
data.CNR.it