Enhanced triplet state yields in aqueous media of asymmetric zinc phthalocyanines when conjugated to silver nanoflowers

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dc.contributor.authorD'Souza, Sarah
dc.contributor.authorGeorge, Reama
dc.contributor.authorGoksel, Meltem
dc.contributor.authorAtilla, Devrim
dc.contributor.authorDurmuş, Mahmut
dc.contributor.authorNyokong, Tebello
dc.date.accessioned2025-10-29T11:23:40Z
dc.date.issued2015
dc.departmentFakülteler, Temel Bilimler Fakültesi, Kimya Bölümü
dc.description.abstractNovel low symmetry water-soluble zinc phthalocyanines (ZnPcs, complexes 1 and 2) were synthesized and then mixed with silver nanoflowers. Photophysical and photochemical studies were performed in order to determine the efficiency of complexes 1 and 2 as photosensitizers when alone and when cornbined with the silver nanoflowers. The Pcs show low fluorescence quantum yields and excellent triplet quantum yields of 0.78 (for 1) and 0.66 (for 2) in aqueous media. The triplet quantum yield values increased to 0.80 and 0.89, respectively, in the presence of silver nanoflowers. Long triplet lifetimes ranging from 180 to 200 is in DMSO were obtained for complexes 1, 2 and their conjugates with silver nanoflowers. (C) 2015 Elsevier Ltd. All rights reserved.
dc.description.sponsorshipDepartment of Science and Technology (DST)
dc.description.sponsorshipNational Research Foundation (NRF)
dc.description.sponsorshipSouth Africa through DST/NRF South African Research Chairs Initiative for Professor of Medicinal Chemistry and Nanotechnology [UID 62620]
dc.description.sponsorshipRhodes University
dc.description.sponsorshipDST/Mintek Nanotechnology Innovation Centre (NIC) - Sensors, South Africa
dc.description.sponsorshipThis work was supported by the Department of Science and Technology (DST) and National Research Foundation (NRF), South Africa through DST/NRF South African Research Chairs Initiative for Professor of Medicinal Chemistry and Nanotechnology (UID 62620) as well as Rhodes University and DST/Mintek Nanotechnology Innovation Centre (NIC) - Sensors, South Africa.
dc.identifier.doi10.1016/j.poly.2015.08.017
dc.identifier.endpage302
dc.identifier.issn0277-5387
dc.identifier.orcid0000-0002-1750-4964
dc.identifier.orcid0000-0002-4590-9926
dc.identifier.scopus2-s2.0-84941656016
dc.identifier.scopusqualityQ2
dc.identifier.startpage296
dc.identifier.urihttps://doi.org/10.1016/j.poly.2015.08.017
dc.identifier.urihttps://hdl.handle.net/20.500.14854/9555
dc.identifier.volume100
dc.identifier.wosWOS:000365363100037
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofPolyhedron
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20251020
dc.subjectZinc phthalocyanine
dc.subjectSilver nanoparticles
dc.subjectPhotodynamic therapy
dc.subjectTriplet quantum yield
dc.subjectSinglet oxygen quantum yield
dc.titleEnhanced triplet state yields in aqueous media of asymmetric zinc phthalocyanines when conjugated to silver nanoflowers
dc.typeArticle

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