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Article Dans Une Revue IEEE Transactions on Biomedical Engineering Année : 2011

Microdosimetry for Nanosecond Pulsed Electric Applications: a Parametric Study at Single Cell Level

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Caterina Merla
  • Fonction : Auteur
A. Paffi
  • Fonction : Auteur
F. Apollonio
  • Fonction : Auteur
Philippe Lévêque
OSA
Guglielmo d'Inzeo
  • Fonction : Auteur
M. Liberti
  • Fonction : Auteur

Résumé

A microdosimetric study of nanosecond pulsed electric fields, including dielectric dispersivity of cell compartments, is proposed in our paper. A quasi-static solution based on the Laplace equation was adapted to wideband signals and used to address the problem of electric field estimation at cellular level. The electric solution was coupled with an asymptotic electroporation model able to predict membrane pore density. An initial result of our paper is the relevance of the dielectric dispersivity, providing evidence that both the transmembrane potential and the pore density are strongly influenced by the choice of modeling used. We note the crucial role played by the dielectric properties of the membrane that can greatly impact on the poration of the cell. This can partly explain the selective action reported on cancerous cells in mixed populations, if one considers that tumor cells may present different dielectric responses. Moreover, these kinds of studies can be useful to determine the appropriate setting of nsPEF generators as well as for the design and optimization of new-generation devices.
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Dates et versions

hal-00674562 , version 1 (27-02-2012)

Identifiants

Citer

Caterina Merla, A. Paffi, F. Apollonio, Philippe Lévêque, Guglielmo d'Inzeo, et al.. Microdosimetry for Nanosecond Pulsed Electric Applications: a Parametric Study at Single Cell Level. IEEE Transactions on Biomedical Engineering, 2011, 58 (5), pp.1294.1302. ⟨10.1109/TBME.2010.2104150⟩. ⟨hal-00674562⟩

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