毫米波与人工生物膜的相互作用

11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005] Pub Date : 2005-06-01 DOI:10.1109/ANTEM.2005.7852192

M. Zhadobov, V. Vié, R. Sauleau, M. Himdi, L. Le Coq, F. Artzner, I. Orlov, D. Thouroude

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引用次数: 2

摘要

我们的工作目的是研究非热功率60GHz辐射对人工生物膜的潜在影响。不同类型的表征脂质单层被使用:1)测量表面张力威廉法和2)观察原子力显微镜(AFM)。生物膜的两种主要磷脂成分:DPPC, DOPC。对不同功率水平和辐照时间下得到的结果进行了比较和讨论。在DPPC脂类的情况下，磷脂膜表面压力的测量显示，在低水平的表面功率密度下，单分子层的表面压力增加。对毫米波辐射处理前后的AFM图像进行分析，发现脂质在两相(液-膨胀态和液-凝聚态)共存的情况下，膜的结构没有明显改变。

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Interactions between millimeter waves and artificial biological membranes

The objective of our work is to study the potential influence of non-thermal power level 60GHz radiation on the artificial biological membranes. Different types of characterization of lipid single layers are used: 1) measurements of superficial tension by Wilhelmy method and 2) observation by atomic force microscopy (AFM). Two major phospholipid constituents of biological membranes are considered: DPPC, DOPC. The results obtained for different power levels and irradiation times are compared and discussed. In the case of DPPC lipids, measurements of superficial pressure of the phospholipid membrane showed an increase of surface pressure of the monomolecular layer for a low level of superficial power density. The analysis of images obtained by AFM before and after millimeter wave radiation treatment did not show significant modifications in the structure of the membrane in which the lipids were found in co-existence of two phases (liquid-expanded state and liquid-condensed state).

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11th International Symposium on Antenna Technology and Applied Electromagnetics [ANTEM 2005]

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