Journal article
Delineating Oxidative Processes of Aqueous C-60 Preparations: Role of THF Peroxide
Environmental science & technology, v 43(1), pp 108-113
01 Jan 2009
PMID: 19209592
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The oxidative reactivity of THF derivatives formed during THF/nC(60) synthesis was evaluated with indigo dye as a model compound. The results showed that the formation of previously undetected oxidizing agents during THF/nC(60) synthesis accounted for the degradation of indigo dye by THF/nC(60) (THF/nC(60)/unwashed), while THF/nC(60) after vigorous washing (THF/nC(60)/washed) and nC(60) prepared without the use of THF were not reactive. gamma-Butyrolactone (GBL) was detected by GC-MS in the THF/nC(60)/unwashed as one of THF derivatives, but showed no reactivity with indigo dye. An organic peroxide was detected in the THF/nC(60)/unwashed by HPLC and was reactive with indigo dye. This compound was found to also account for the elevated antibacterial and bactericidal activities of THF/nC(60)/unwashed on E. coli. Analysis by LC/(+ESI)MS and IH NMR showed that the detected THF peroxide was tetrahydro-2-(tetrahydrofuran-2-ylperoxy)furan. The formation of THF peroxide during the preparation of aqueous stable C-60 aggregates provides another potential explanation for the reactivity and oxidative stress mechanisms of THF/nC(60) system reported in the literature, although it does not exclude the potential reactivity and toxicity of nC(60) itself.
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Details
- Title
- Delineating Oxidative Processes of Aqueous C-60 Preparations: Role of THF Peroxide
- Creators
- Bo Zhang - Georgia Institute of TechnologyMin Cho - Georgia Institute of TechnologyJohn D. Fortner - Georgia Institute of TechnologyJaesang Lee - Rice UniversityChing-Hua Huang - Georgia Institute of TechnologyJoseph B. Hughes - Georgia Institute of TechnologyJae-Hong Kim - Georgia Institute of Technology
- Publication Details
- Environmental science & technology, v 43(1), pp 108-113
- Publisher
- Amer Chemical Soc
- Number of pages
- 6
- Grant note
- Georgia Institute of Technology D832526 / U.S. Environmental Protection Agency; United States Environmental Protection Agency
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering
- Web of Science ID
- WOS:000262016000021
- Scopus ID
- 2-s2.0-61849154741
- Other Identifier
- 991021931900004721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Engineering, Environmental
- Environmental Sciences