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2020-01-05 - Article/Dans un journal avec peer-review - Anglais - 4 page(s)

Nicolas Charlier, Desoil Mélanie , Gossuin Yves , Gillis Pierre , Gallez Bernard, "Electron Paramagnetic Resonance Imaging of Melanin in Honey Bee" in Cell Biochemistry and Biophysics, 78(2), 123-126, doi: 10.1007/s12013-020-00903-8

  • Edition : Humana Press (United States)
  • Codes CREF : Résonance magnétique nucléaire (biophysique) (DI131B), Physique du spin (genre RMN) (DI1234), Biophysique (DI3113), Imagerie médicale, radiologie, tomographie (DI3243)
  • Unités de recherche UMONS : Physique biomédicale (M104)
  • Instituts UMONS : Institut des Sciences et Technologies de la Santé (Santé)
  • Centres UMONS : Physique des matériaux (CRPM)
Texte intégral :

Abstract(s) :

(Anglais) Honey bees play a crucial role in the nature by pollinating wild flowers. Over the past years, there has been an increasing concern regarding the honey bee colony decline. Pesticides or environmental effects targeting the biochemistry of insect chitin and cuticle coating may be in part responsible for honey bee pathologies. We here propose the use of electron paramagnetic resonance imaging (EPRI) as a tool to image the melanin–chitin complexes as part of the exoskeleton of the honey bee. EPRI at 9.65 GHz was applied on intact freeze-dried bees. The imaging data were collected on the melanin peak. High-resolution images revealed that this compound is extensively distributed in the periphery of the animal, data consistent with the localization in the cuticle of the bee. While EPR of melanin has been so far explored in the context of melanoma characterization, it may offer new opportunities in research on honey bees and other insects.