NDLI: Singlet oxygen generation using iodinated squaraine and squaraine-rotaxane dyes.

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Singlet oxygen generation using iodinated squaraine and squaraine-rotaxane dyes.

Content Provider	Semantic Scholar
Author	Arunkumar, Easwaran Sudeep, Pallikkara K. Kamat, Prashant V. Noll, Bruce C. Smith, Bradley D.
Copyright Year	2007
Abstract	The goal of this study was to assess the ability of squaraine-rotaxanes to generate singlet oxygen for potential application in photodynamic therapy (PDT). Specifically, we compare the aggregation and photophysical properties of an iodinated squaraine dye and an iodinated squaraine-rotaxane. Even under strongly aggregating conditions, the absorption spectra of both remain relatively sharp. An X-ray crystal structure of the iodinated squaraine dye shows that it adopts perpendicular, end-to-face orientations in the solid state. Singlet oxygen generation efficiency was measured by trapping with 1,3-diphenylisobenzofuran. The triplet state of the rotaxane was characterized using laser flash photolysis. The results of this study suggest that heavily halogenated squaraine-rotaxanes have potential as singlet oxygen photosensitizers for PDT.
Starting Page	677
Ending Page	683
Page Count	7
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://www3.nd.edu/~bsmith3/pdf/NJC2007.pdf
PubMed reference number	20376333v1
Volume Number	31
Issue Number	5
Journal	New journal of chemistry = Nouveau journal de chimie
Language	English
Access Restriction	Open
Subject Keyword	1,3-diphenylisobenzofuran 1-phenyl-3,3-dimethyltriazene Dyes Flash photolysis Hydroxyquinolines Oxygen 100 % Gas for Inhalation Photochemotherapy Photosensitizing Agents Rotaxanes Singlet Oxygen squaraine L2
Content Type	Text
Resource Type	Article

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