- Title
- A study of the photophysicochemical and antimicrobial properties of two zinc phthalocyanine–silver nanoparticle conjugates
- Creator
- Rapulenyane, Nomasonto
- Creator
- Antunes, Edith M
- Creator
- Nyokong, Tebello
- Subject
- To be catalogued
- Date Issued
- 2013
- Date
- 2013
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/232522
- Identifier
- vital:49999
- Identifier
- xlink:href="https://doi.org/10.1039/C3NJ41107A"
- Description
- This work reports conjugation of two mono carboxy substituted zinc phthalocyanines with glutathione capped silver nanoparticles (GSH-AgNPs). The photophysicochemical behaviour of the novel phthalocyanines–silver nanoparticle conjugates was investigated together with simple mixtures of the silver nanoparticles with low symmetry phthalocyanines (i.e. with no direct chemical bond formation). It was observed that upon conjugation of the phthalocyanines to the silver nanoparticles, a blue shifting of the Q band was induced. The triplet lifetimes and quantum yields improved upon conjugation as compared to the phthalocyanines alone. Fluorescence lifetimes and quantum yields decreased for conjugates compared to the phthalocyanines alone due to quenching caused by the silver nanoparticles. The low symmetry phthalocyanines and their conjugates showed antimicrobial activity against Escherichia coli in the presence and absence of light.
- Format
- computer
- Format
- online resource
- Format
- application/pdf
- Format
- 1 online resource (8 pages)
- Format
- Publisher
- Royal Society of Chemistry
- Language
- English
- Relation
- New Journal of Chemistry
- Relation
- Rapulenyane, N., Antunes, E. and Nyokong, T., 2013. A study of the photophysicochemical and antimicrobial properties of two zinc phthalocyanine–silver nanoparticle conjugates. New Journal of Chemistry, 37(4), pp.1216-1223
- Relation
- New Journal of Chemistry volume 37 number 4 p. 1216 2013 1369-9261
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Royal Society of Chemistry Terms and Conditions Statement (https://0-www.rsc.org.wam.seals.ac.za/help-legal/)
- Rights
- Open Access
- Hits: 966
- Visitors: 1085
- Downloads: 132
Collections
Antunes, Edith Martins (Dr)
Nyokong, Tebello (Distinguished Professor)
RU DST/NRF SARChI for Medicinal Chemistry and Nanotechnology
RU Department of Chemistry
| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details Download | SOURCE1 | A study of the photophysicochemical and antimicrobial properties.pdf | 2 MB | Adobe Acrobat PDF | View Details Download |