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Molecular forms and fluorescence processes of 9-aminoacridine in thin sol–gel films

Paper ID Volume ID Publish Year Pages File Format Full-Text
27929 44050 2010 6 PDF Available
Title
Molecular forms and fluorescence processes of 9-aminoacridine in thin sol–gel films
Abstract

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.

Keywords
9-Aminoacridine; Fluorescence; Aggregation; Sol–gel reaction; Silica
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Molecular forms and fluorescence processes of 9-aminoacridine in thin sol–gel films
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 212, Issue 1, 30 April 2010, Pages 62–67
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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