Mass diffusion through two-layer media: an application to the drug-eluting stent (Articolo in rivista)

Type
Label
  • Mass diffusion through two-layer media: an application to the drug-eluting stent (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.ijheatmasstransfer.2006.11.003 (literal)
Alternative label
  • Pontrelli G.; de Monte F. (2007)
    Mass diffusion through two-layer media: an application to the drug-eluting stent
    in International Journal of Heat and Mass Transf. (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Pontrelli G.; de Monte F. (literal)
Pagina inizio
  • 3658 (literal)
Pagina fine
  • 3669 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.iac.rm.cnr.it/~pontrell/ (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 50 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 12 (literal)
Note
  • Scopu (literal)
  • Google Scholar (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto per le Applicazioni del Calcolo, CNR - Dipartimento di Ingegneria Meccanica, Energetia e Gestionale, Universita' dell'Aquila (literal)
Titolo
  • Mass diffusion through two-layer media: an application to the drug-eluting stent (literal)
Abstract
  • A mathematical model for the diffusion-transport of a substance between two porous homogeneous media of different properties and dimensions is presented. A strong analogy with the one-dimensional transient heat conduction process across two-layered slabs is shown and a similar methodology of solution is proposed. Separation of variables leads to a Sturm-Liouville problem with discontinuous coefficients and an exact analytical solution is given in the form of an infinite series expansion. The model points out the role of four non-dimensional parameters which control the diffusion mechanism across the two porous layers. The drug-eluting stent constitutes the main application of the present model. Drug concentration profiles at various times are given and analyzed. Also, qualitative considerations and a quantitative description to evaluate feasibility of new drug delivery strategies are provided, and some indicators, such as the emptying time, useful to optimize the drug-eluting stent design are discussed. (literal)
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