FT-IR spectroscopic study on the variations of molecular structures of some carboxyl acids induced by free electron laser.
FT-IR spectroscopic study on the variations of molecular structures of some carboxyl acids induced by free electron laser.
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DOI：
10.1016/j.saa.2005.04.027
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发表时间：
2005-12
期刊：
影响因子：
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通讯作者：
Limin Yang;Yizhuang Xu;Yunlan Su;Jinguang Wu;K. Zhao;Jia’er Chen;Mingkai Wang
中科院分区：
文献类型：
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作者：
Limin Yang;Yizhuang Xu;Yunlan Su;Jinguang Wu;K. Zhao;Jia’er Chen;Mingkai Wang
自由电子激光器作为一种波长范围广的可调谐激光器已经得到了发展。在北京自由电子激光器（BFEL）中，器件的辐照范围为6 ~ 16μm （1666 ~ 625cm−1）。为了了解FEL与生物组织之间的相互作用，本研究利用FT-IR光谱测量了FEL辐照下波长选择性红外诱导的物质结构变化。羧酸和羧酸盐样品包括水杨酸、磺基水杨酸、胆酸、去氧胆酸、胆酸钠和去氧胆酸钠。分子的FT-IR光谱变化证明了FEL诱导样品的光谱变化与其氢键网络密切相关。
Free electron laser has been developed as tunable lasers over a wide range of wavelengths. Devices irradiating in the region of 6–16μm (1666–625cm−1) are operable in the Beijing free electron lasers facilities (BFEL). For understanding the interactions between FEL and biological tissues, in this study wavelength-selective infrared-induced structure changes of substances under irradiation by FEL were measured using FT-IR spectroscopy. The carboxyl acids and carboxylates samples investigated include salicylic acid, sulfosalicylic acid, cholic acid, deoxycholic acid, sodium cholate and sodium deoxycholate. The changes of the FT-IR spectra of the molecules prove that the spectral variations of the samples induced by FEL are closely related to their hydrogen bond networks.