Raman and FT-IR studies of photodynamic processes of cholesteryl oleate using IRFELs

被引：24
|
作者：
Fukami, Y
Maeda, Y
Awazu, K
机构：
[1] Univ Osaka Prefecture, Dept Mat Sci, Osaka 5998531, Japan
[2] Free Electron Laser Res Inst Inc, Hirakata, Osaka 57301, Japan
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1998年 / 144卷 / 1-4期
关键词：
free electron laser; cholesterol-ester; photodynamic therapy; ester;
D O I：
10.1016/S0168-583X(98)00360-7
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Chemical bond-changes of cholesteryl oleate in infrared free electron laser (IRFEL) photodynamic processes were examined by Raman spectroscopy and Fourier transform infrared microspectroscopy (FT-IR) as a function of the FEL exposure time. We found that the exposure of 5.79 mu m-FELs induces not only dissociation of ester (RCOOR') bonds but also the chemical changes from the ester (RCOOR') bonds to aldehyde (RCHO), carboxylic acid (RCOOH), carboxylate (RCOO-) or ketone (R2C=O) bonds. (C) 1998 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码：229 / 235
页数：7
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