- Title
- A comparative photophysicochemical study of phthalocyanines encapsulated in core–shell silica nanoparticles
- Creator
- Fashina, Adedayo
- Creator
- Amuhaya, Edith K
- Creator
- Nyokong, Tebello
- Subject
- To be catalogued
- Date Issued
- 2015
- Date
- 2015
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/189708
- Identifier
- vital:44924
- Identifier
- xlink:href="https://doi.org/10.1016/j.saa.2014.08.062"
- Description
- This work presents the synthesis and characterization of a new zinc phthalocyanine complex tetrasubstituted with 3-carboxyphenoxy in the peripheral position. The photophysical properties of the new complex are compared with those of phthalocyanines tetra substituted with 3-carboxyphenoxy or 4- carboxyphenoxy at non-peripheral positions. Three phthalocyanine complexes were encapsulated within silica matrix to form a core shell and the hybrid nanoparticles particles obtained were spherical and mono dispersed. When encapsulated within the silica shell nanoparticles, phthalocyanines showed improved triplet quantum yields and singlet oxygen quantum yields than surface grafted derivatives. The improvements observed could be attributed to the protection provided for the phthalocyanine complexes by the silica matrix.
- Format
- computer
- Format
- online resource
- Format
- application/pdf
- Format
- 1 online resource (6 pages)
- Format
- Publisher
- Elsevier
- Language
- English
- Relation
- Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
- Relation
- Fashina, A., Amuhaya, E. and Nyokong, T., 2015. A comparative photophysicochemical study of phthalocyanines encapsulated in core–shell silica nanoparticles. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 137, pp.294-299
- Relation
- Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy volume 137 p. 294 2015 1386-1425
- 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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Collections
RU DST/NRF SARChI for Medicinal Chemistry and Nanotechnology
Nyokong, Tebello (Distinguished Professor)
RU Department of Chemistry
SDG 03. Good Health and Well-Being
| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details Download | SOURCE1 | A comparative photophysicochemical study of phthalocyanines.pdf | 776 KB | Adobe Acrobat PDF | View Details Download |