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Millimeter Wave Radiations Affect Membrane Hydration in Phosphatidylcholine Vesicles
Department of Chemistry, University of Calabria, Via P. Bucci-Cubo 17/D, Arcavacata di Rende (CS) 87040, Italy
Adhesion and Inflammation, CNRS UMR 7333, INSERM U1067, Aix Marseille University, Luminy, Marseille 13009, France
* Author to whom correspondence should be addressed.
Received: 8 May 2013; in revised form: 20 June 2013 / Accepted: 2 July 2013 / Published: 9 July 2013
Abstract: A clear understanding of the response of biological systems to millimeter waves exposure is of increasing interest for the scientific community due to the recent convincing use of these radiations in the ultrafast wireless communications. Here we report a deuterium nuclear magnetic resonance spectroscopy (2H-NMR) investigation on the effects of millimeter waves in the 53–78 GHz range on phosphocholine bio-mimetic membranes. Millimeter waves significantly affect the polar interface of the membrane causing a decrease of the heavy water quadrupole splitting. This effect is as important as inducing the transition from the fluid to the gel phase when the membrane exposure occurs in the neighborhood of the transition point. On the molecular level, the above effect can be well explained by membrane dehydration induced by the radiation.
Keywords: bio-mimetic membranes; phosphatidylcholine; millimeter wave exposure; deuterium quadrupole splitting; nuclear magnetic resonance
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Beneduci, A.; Cosentino, K.; Chidichimo, G. Millimeter Wave Radiations Affect Membrane Hydration in Phosphatidylcholine Vesicles. Materials 2013, 6, 2701-2712.
Beneduci A, Cosentino K, Chidichimo G. Millimeter Wave Radiations Affect Membrane Hydration in Phosphatidylcholine Vesicles. Materials. 2013; 6(7):2701-2712.
Beneduci, Amerigo; Cosentino, Katia; Chidichimo, Giuseppe. 2013. "Millimeter Wave Radiations Affect Membrane Hydration in Phosphatidylcholine Vesicles." Materials 6, no. 7: 2701-2712.