RAMAN AND FT-IR STUDIES OF PHOTODYNAMIC PROCESSES OF CHOLESTERYL OLEATE USING IRFELS

Authors
FUKAMI Y MAEDA Y AWAZU K
Citation
Y. Fukami et al., RAMAN AND FT-IR STUDIES OF PHOTODYNAMIC PROCESSES OF CHOLESTERYL OLEATE USING IRFELS, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 144(1-4), 1998, pp. 229-235
Citations number
14
Categorie Soggetti
Instument & Instrumentation","Nuclear Sciences & Tecnology","Physics, Atomic, Molecular & Chemical","Physics, Nuclear
Journal title
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms → ACNP
ISSN journal
0168583X
Volume
144
Issue
1-4
Year of publication
1998
Pages
229 - 235
Database
ISI
SICI code
0168-583X(1998)144:1-4<229:RAFSOP>2.0.ZU;2-F
Abstract
Chemical bond-changes of cholesteryl oleate in infrared free electron laser (IRFEL) photodynamic processes were examined by Raman spectrosco py and Fourier transform infrared microspectroscopy (FT-IR) as a funct ion 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 th e chemical changes from the ester (RCOOR') bonds to aldehyde (RCHO), c arboxylic acid (RCOOH), carboxylate (RCOO-) or ketone (R2C=O) bonds. ( C) 1998 Published by Elsevier Science B.V. All rights reserved.