- Title
- Unquenched fluorescence lifetime for β-phenylthio substituted zinc phthalocyanine upon conjugation to gold nanoparticles
- Creator
- Forteath, Shaun, Antunes, Edith M, Chidawanyika, Wadzanai J U, Nyokong, Tebello
- Subject
- To be catalogued
- Date
- 2012
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/245774
- Identifier
- vital:51404
- Identifier
- xlink:href="https://doi.org/10.1016/j.poly.2011.12.015"
- Description
- Photoinduced processes in phthalocyanine-functionalized gold nanoparticles have been investigated by spectroscopic measurements. The zinc phthalocyanine used contained four phenylthio peripheral substituents (ZnPc(SPh)4). The conjugates formed are represented as ZnPc(SPh)4–AuNP. The absorption spectrum of the ZnPc(SPh)4–AuNP shows a broadening of the phthalocyanine Q-band absorption, probably due to a tight packing of the phthalocyanines on the gold nanoparticle surface. For the attached phthalocyanines, the two fluorescence lifetimes obtained by time-correlated single photon counting (TCSPC) were determined to be both longer and shorter than that of the free Pc. The fluorescence lifetimes were resolved using time resolved fluorescence spectroscopy (TRES).
- Format
- computer, online resource, application/pdf, 1 online resource (7 pages), pdf
- Publisher
- Elsevier
- Language
- English
- Relation
- Polyhedron, Forteath, S., Antunes, E., Chidawanyika, W. and Nyokong, T., 2012. Unquenched fluorescence lifetime for β-phenylthio substituted zinc phthalocyanine upon conjugation to gold nanoparticles. Polyhedron, 34(1), pp.114-120, Polyhedron volume 34 number 1 p. 114 2012 0277-5387
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Elsevier Terms and Conditions Statement (https://www.elsevier.com/legal/elsevier-website-terms-and-conditions)
- Rights
- Closed Access
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Antunes, Edith Martins (Dr)
RU DST/NRF SARChI for Medicinal Chemistry and Nanotechnology
Nyokong, Tebello (Distinguished Professor)
RU Department of Chemistry
SDG 03. Good Health and Well-Being
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|---|---|---|---|---|---|---|---|
| View Details Download | SOURCE1 | Unquenched fluorescence lifetime for β-phenylthio substituted zinc phthalocyanine.pdf | 678 KB | Adobe Acrobat PDF | View Details Download |