2024-03-29T00:26:45Z
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2022-12-14T04:01:33Z
1221:1222
Molecular forms and fluorescence processes of 9-aminoacridine in thin sol-gel films
Nishikiori, Hiromasa
Tanaka, Nobuaki
Minami, Yuki
Katsuki, Akio
Fujii, Tsuneo
9-Aminoacridine
Fluorescence
Aggregation
Sol-gel reaction
Silica
Molecular aggregation and fluorescence processes of 9-aminoacridine (9AA) in thin silica gel films have been investigated by the steady state and time-resolved fluorescence measurements. The monomer of 9AA was the preferential species in the sol-gel reaction systems of tetraethylorthosilicate until the gelation occurred. The 9AA molecules formed the dimer or higher aggregates just after preparing the dip-coated thin film from the sol-gel system. The extent of the aggregation decreased in the film prepared from the system in which the reaction further proceeded. This result indicates that the aggregation in the prepared film was gradually prevented by the steric hindrance of the SiO2 network with the progress of the sol-gel reaction. The fluorescence properties of 9AA revealed the behavior of the molecules due to the change in the physicochemical environment in the matrix.
Article
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY. 212(1):62-67 (2010)
journal article
ELSEVIER SCIENCE SA
2010-04-30
application/pdf
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
1
212
62
67
1010-6030
AA10684407
https://soar-ir.repo.nii.ac.jp/record/12497/files/Molecular_forms_fluorescence_processes.pdf
eng
10.1016/j.jphotochem.2010.03.017
https://doi.org/10.1016/j.jphotochem.2010.03.017
Copyright (c) 2010 Elsevier B.V.