Discrimination of Anionic Polysaccharides via Monomer-Excimer Switching and Photo-Induced Colorimetric Reaction of 1-Methyl-3-(N-(1,8-naphthalimidyl)ethyl)imidazolium

1-Methyl-3-(N-(1,8-naphthalimidyl)ethyl)imidazolium can be a discriminator for anionic polysaccharides via monomer-excimer switching and photo-induced colorimetric reaction. In the system, the excimer fluorescence increases remarkably in the presence of sulfated polysaccharides. The degree of enhanc...

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Published inBulletin of the Chemical Society of Japan Vol. 91; no. 8; pp. 1220 - 1225
Main Authors Izawa, Hironori, Wada, Mayuko, Nishino, Shoji, Sumita, Masato, Fujita, Takehiro, Morihashi, Kenji, Ifuku, Shinsuke, Morimoto, Minoru, Saimoto, Hiroyuki
Format Journal Article
LanguageEnglish
Published Tokyo The Chemical Society of Japan 01.08.2018
Chemical Society of Japan
Subjects
Colorimetry
Excimers
Fluorescence
Monomers
Polysaccharides
Switching
Sensor molecules
1,8-Naphthalimide derivatives
Anionic polysaccharides
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Summary:1-Methyl-3-(N-(1,8-naphthalimidyl)ethyl)imidazolium can be a discriminator for anionic polysaccharides via monomer-excimer switching and photo-induced colorimetric reaction. In the system, the excimer fluorescence increases remarkably in the presence of sulfated polysaccharides. The degree of enhancement depends on the number of sulfate groups in its structure. In contrast, the degree of excimer enhancement is not significant in the presence of carboxylated polysaccharides probably due to a different photo-induced decay pathway. The solutions containing carboxylated polysaccharides certainly become yellow via a photo-induced colorimetric reaction.
ISSN:0009-2673
1348-0634
DOI:10.1246/bcsj.20180128