极低频电磁场非热生物效应的发生与生物组织接受电磁辐射后微观结构的改变有关, 利用红外光谱学分析方法可以有效的研究电磁辐射生物效应发生的微观机制。 研究了极低频电磁场曝露对于大鼠电磁敏感组织红外光谱特征的影响, 对曝露于50　Hz, 0.75　mT极低频电磁场作用20天的大鼠的血液、 脑和睾丸组织的红外光谱与正常大鼠组织的红外光谱进行比较分析, 从分子水平阐述了极低频电磁场曝露作用生物效应的发生机制。 实验结果表明极低频电磁场曝露可导致大鼠敏感组织某些特征吸收峰峰位和峰强产生了规律性的变化, 说明傅里叶变换红外光谱方法是研究电磁场不同生物效应的发生机制的一种有效手段。

Nonthermal effects of extremely low frequency electromagnetic fields (ELF-EMF) are related to changes in the microstructure of biological tissues after exposure to electromagnetic radiation. Fourier transform infrared spectroscopy (FTIR) analysis method can effectively study the mechanisms of biological effects of electromagnetic radiation. The present paper studies the characteristics of sensitive tissues of rat after ELF-EMF exposure. FTIR analysis of sensitive tissues of control group and experimental group showed that 50 Hz, 0.75 mT ELF-EMF exposure for 20 days can affect molecular level of the rat testis, blood and brain. Experimental results show that regular changes in absorption peak positions and intensity in the spectra of sensitive tissue may be caused by exposure to ELF-EMF, therefore, Fourier transform infrared spectroscopy is an effective means to study mechanism of biological effects of electromagnetic fields.