ABSTRACT The aim of this paper was to study the response of methyl (CH3) and methylene (CH2) vibration bands in amino acids of some typical proteins diluted in bidistilled water solution after exposure to a high-frequency electromagnetic fields using Fourier Transform Infrared (FTIR) Spectroscopy. Hemoglobin in H2O solution and bovine serum albumin and myoglobin diluted in different D2O solutions were exposed for 4 h to a power density of 0.95 W/m2 at the frequency of 1750 MHz, emitted by operational mobile phones Nokia model 105 and Samsung model GT-E1270, in order to study the response of stretching vibrations of CH3 and CH2 that are in amino acids of those proteins. The main result was that CH3 stretching bands increased significantly in myoglobin in D2O solution because this protein is represented by a single protein chain so that the torque induced by the applied field is larger than that induced on the other two proteins. Otherwise, CH2 stretching vibrations decreased in intensity significantly for all exposed proteins. This result can be explained as well, assuming that, given a fixed volume, a decrease of population of CH2 occurred after exposure because of the alignment of proteins α-helices along the direction of the applied electromagnetic field.

中文翻译：

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高频电磁场下水溶液中典型蛋白质氨基酸的甲基和亚甲基振动响应

摘要 本文的目的是使用傅里叶变换红外光谱 (FTIR) 研究暴露于高频电磁场后，稀释在双蒸馏水溶液中的一些典型蛋白质的氨基酸中甲基 (CH3) 和亚甲基 (CH2) 振动带的响应。 ) 光谱学。H2O 溶液中的血红蛋白和在不同 D2O 溶液中稀释的牛血清白蛋白和肌红蛋白在 1750 MHz 频率下暴露于 0.95 W/m2 的功率密度下 4 小时，由诺基亚 105 型和三星型 GT-E1270 型手机发射, 为了研究这些蛋白质氨基酸中 CH3 和 CH2 的伸缩振动的响应。主要结果是 D2O 溶液中肌红蛋白中 CH3 拉伸带显着增加，因为该蛋白质由单个蛋白质链表示，因此外加场诱导的扭矩大于其他两种蛋白质的扭矩。否则，对于所有暴露的蛋白质，CH2 伸缩振动的强度显着降低。这个结果也可以解释，假设在给定体积的情况下，由于蛋白质 α 螺旋沿施加的电磁场方向排列，暴露后 CH2 的数量减少。