- Title
- Interaction of CdTe quantum dots with 2, 2-diphenyl-1-picrylhydrazyl free radical
- Creator
- Adegoke, Oluwasesan, Chidawanyika, Wadzanai J U, Nyokong, Tebello
- Subject
- To be catalogued
- Date
- 2012
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/245751
- Identifier
- vital:51402
- Identifier
- xlink:href="https://doi.org/10.1007/s10895-011-1012-2"
- Description
- The interaction of 2,2-diphenyl-1-picrylhydrazyl (DPPH●) free radical with thiol-capped CdTe quantum dots (QDs) has been studied by UV–vis spectroscopy, steady state and time resolved fluorescence measurements. Addition of DPPH● radical to CdTe QDs resulted in fluorescence quenching. The interaction occurs through static quenching as this was confirmed by fluorescence lifetime measurements. Time course absorption studies indicates that DPPH● may be reduced by interaction with QDs to the substituted hydrazine form (2,2-diphenyl-1-picrylhydrazine) DPPH-H. The mechanism of fluorescence quenching of CdTe QDs by DPPH● is proposed.
- Format
- computer, online resource, application/pdf, 1 online resource (8 pages), pdf
- Publisher
- SpringerLink
- Language
- English
- Relation
- Journal of Fluorescence, Adegoke, O., Chidawanyika, W. and Nyokong, T., 2012. Interaction of CdTe quantum dots with 2, 2-diphenyl-1-picrylhydrazyl free radical: a spectroscopic, fluorimetric and kinetic study. Journal of fluorescence, 22(2), pp.771-778, Journal of Fluorescence volume 22 number 2 p. 771 2012 1573-4994
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the SpringerLink Terms of Use Statement ( https://link.springer.com/termsandconditions)
- Rights
- Open Access
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Collections
RU DST/NRF SARChI for Medicinal Chemistry and Nanotechnology
Nyokong, Tebello (Distinguished Professor)
RU Department of Chemistry
| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details | SOURCE1 | Interaction of CdTe quantum dots with 2, 2-diphenyl-1-picrylhydrazyl free radical.pdf | 1009 KB | Adobe Acrobat PDF | View Details |