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The release of iron from different asbestos structures by hydrogen peroxide with concomitant O2 generation.

Publication ,  Journal Article
Ghio, AJ; Taylor, DE; Stonehuerner, JG; Piantadosi, CA; Crumbliss, AL
Published in: Biometals
January 1998

Treatment of aqueous suspensions of different asbestos fibers (amosite, anthophyllite, chrysotile, and crocidolite) at 0-4 degrees C and pH 7.2 with H2O2 results in the consumption of H2O2 with concomitant release of iron and production of O2. During incubations, [H2O2] decreased in proportion to the mass of the suspended fiber, the duration of incubation, and the initial [H2O2]. The consumption of H2O2, production of O2 and release of iron all vary synergistically with the structure of the asbestos fiber. Release of silicon during the incubation was small relative to the decrement in [H2O2], reflecting a lack of dissolution of the fiber. The data are consistent with a redox process for the release of surface bound iron and it is significant that iron release occurs in the absence of a Fe(II) or Fe(III) chelator. The implications of iron release from the asbestos surface may be important in inflammatory disorders in which both silicate bound iron and H2O2 accumulate.

Duke Scholars

Published In

Biometals

DOI

ISSN

0966-0844

Publication Date

January 1998

Volume

11

Issue

1

Start / End Page

41 / 47

Location

Netherlands

Related Subject Headings

  • Suspensions
  • Silicon
  • Oxygen
  • Oxidation-Reduction
  • Oxidants
  • Iron
  • Hydrogen Peroxide
  • Biochemistry & Molecular Biology
  • Asbestos
  • 3101 Biochemistry and cell biology
 

Citation

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Ghio, A. J., Taylor, D. E., Stonehuerner, J. G., Piantadosi, C. A., & Crumbliss, A. L. (1998). The release of iron from different asbestos structures by hydrogen peroxide with concomitant O2 generation. Biometals, 11(1), 41–47. https://doi.org/10.1023/a:1009257323963
Ghio, A. J., D. E. Taylor, J. G. Stonehuerner, C. A. Piantadosi, and A. L. Crumbliss. “The release of iron from different asbestos structures by hydrogen peroxide with concomitant O2 generation.Biometals 11, no. 1 (January 1998): 41–47. https://doi.org/10.1023/a:1009257323963.
Ghio AJ, Taylor DE, Stonehuerner JG, Piantadosi CA, Crumbliss AL. The release of iron from different asbestos structures by hydrogen peroxide with concomitant O2 generation. Biometals. 1998 Jan;11(1):41–7.
Ghio, A. J., et al. “The release of iron from different asbestos structures by hydrogen peroxide with concomitant O2 generation.Biometals, vol. 11, no. 1, Jan. 1998, pp. 41–47. Pubmed, doi:10.1023/a:1009257323963.
Ghio AJ, Taylor DE, Stonehuerner JG, Piantadosi CA, Crumbliss AL. The release of iron from different asbestos structures by hydrogen peroxide with concomitant O2 generation. Biometals. 1998 Jan;11(1):41–47.
Journal cover image

Published In

Biometals

DOI

ISSN

0966-0844

Publication Date

January 1998

Volume

11

Issue

1

Start / End Page

41 / 47

Location

Netherlands

Related Subject Headings

  • Suspensions
  • Silicon
  • Oxygen
  • Oxidation-Reduction
  • Oxidants
  • Iron
  • Hydrogen Peroxide
  • Biochemistry & Molecular Biology
  • Asbestos
  • 3101 Biochemistry and cell biology