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Un modèle ferromagnétique pour l'action des champs électriques et magnétiques dans la cryoconservation.

A ferromagnetic model for the action of electric and magnetic fields in cryopreservation.

Auteurs : KOBAYASHI A., KIRSCHVINK J. L.

Type d'article : Article

Résumé

Recent discussions in the literature have questioned the ability of electromagnetic exposure to inhibit ice crystal formation in supercooled water. Here we note that strong electric fields are able to disrupt the surface boundary layer of inert air on the surface of materials, promoting higher rates of heat transport. We also note that most biological tissues contain ferromagnetic materials, both biologically precipitated magnetite (Fe3O4) as well as environmental contaminants that get accidentally incorporated into living systems. Although present at trace levels, the number density of these particulates is high, and they have extraordinarily strong interactions with weak, low-frequency magnetic fields of the sort involved in claims of electromagnetic cryopreservation. Magnetically-induced mechanical oscillation of these particles provides a plausible mechanism for the disruption of ice-crystal nucleation in supercooled water.

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Pages : 163-165

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Détails

  • Titre original : A ferromagnetic model for the action of electric and magnetic fields in cryopreservation.
  • Identifiant de la fiche : 30011364
  • Langues : Anglais
  • Source : Cryobiology - vol. 68 - n. 2
  • Date d'édition : 04/2014
  • DOI : http://dx.doi.org/10.1016/j.cryobiol.2013.12.002

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