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Physicochemical behavior of zinc tetrakis (benzylmercapto) phthalocyanine when used to functionalize gold nanoparticles and in electronspun fibers

Paper ID Volume ID Publish Year Pages File Format Full-Text
27067 43998 2012 9 PDF Available
Title
Physicochemical behavior of zinc tetrakis (benzylmercapto) phthalocyanine when used to functionalize gold nanoparticles and in electronspun fibers
Abstract

Aryl-derivatized ZnPc (tetrakis (benzylmercapto) zinc phthalocyanine, ZnTBMPc) was synthesized and used to functionalize gold nanoparticles (AuNPs) by ligand exchange. The triplet quantum yield and lifetime of ZnTBMPc were determined to be 0.51 and 50 μs and a singlet oxygen quantum yield (ΦΔ) of 0.33 was obtained in toluene. When conjugated to AuNPs, the ΦΔ value of 0.54 was obtained in toluene. Poly(methyl methacrylate) fiber was electrospun in the absence and presence of ZnTBMPc and its conjugate with AuNPs. The functionalized fiber showed an ability to generate singlet oxygen for both ZnTBMPc and its AuNPs conjugate. The functionalized phthalocyanine fiber could be a promising fabric material for applications as photosensitizers.

► A benzylmercapto phthalocyanine was synthesized and conjugated to gold nanoparticles. ► The conjugates showed increased singlet oxygen generation compared to phthalocyanine alone. ► A polymer containing the conjugates and the phthalocyanine alone was electrospun into fibers. ► The fibers showed the ability to generate singlet oxygen.

Keywords
Zinc phthalocyanine; Benzylthio; Fluorescence lifetime; Gold nanoparticles; Electrospinning
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Physicochemical behavior of zinc tetrakis (benzylmercapto) phthalocyanine when used to functionalize gold nanoparticles and in electronspun fibers
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 240, 15 July 2012, Pages 50–58
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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Don't Miss Today's Special Offer
Price was $35.95
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Price after discount Only $4.95
100% Money Back Guarantee
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