Pyrite-induced hydroxyl radical formation and its effect on nucleic acids
2006
How Pyrite Creates Hydroxyl Radicals and Affects DNA
publication
Evidence: moderate
Author Information
Author(s): Cohn Corey A, Mueller Steffen, Wimmer Eckard, Leifer Nicole, Greenbaum Steven, Strongin Daniel R, Schoonen Martin A
Primary Institution: Stony Brook University
Hypothesis
Does pyrite-induced hydrogen peroxide transform into hydroxyl radicals?
Conclusion
Pyrite promotes the formation of hydroxyl radicals, which can rapidly degrade nucleic acids.
Supporting Evidence
- Pyrite generates hydrogen peroxide when mixed with water.
- Hydroxyl radicals formed from hydrogen peroxide can degrade nucleic acids.
- EDTA inhibits the conversion of hydrogen peroxide to hydroxyl radicals.
Takeaway
When pyrite is mixed with water, it can create tiny, reactive particles called hydroxyl radicals that can break down DNA and RNA.
Methodology
The study used electron spin resonance (ESR) and nucleic acid degradation experiments to demonstrate hydroxyl radical formation.
Limitations
The exact mechanism of hydroxyl radical formation from hydrogen peroxide remains unresolved.
Digital Object Identifier (DOI)
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