Deuterium isotope effects on iron core formation in ferritin

Document Type

Article

Publication Date

9-1-2005

Abstract

We present comparative Mössbauer investigations of nanosized FeOOH and FeOOD biomineral phases nucleated within the 7-nm diameter cavity of horse-spleen apoferritin in order to assess deuterium isotopic effects on nanoscale, bioinorganic lattice structures with extended hydrogen bond networks. Differences in magnetic anisotropy energy, packing density and degree of crystallinity in the resulting iron oxo-hydroxide nanophases obtained via D2O (heavy water) vs. H2O (light water) solution chemistry are noted. These observations point to the possibility of stabilizing new thermodynamic states in the solid-state by utilizing isotope effects, with important implications for new synthetic pathways to novel nano materials. © Springer Science + Business Media B.V. 2006.

Identifier

84869496186 (Scopus)

Publication Title

Hyperfine Interactions

External Full Text Location

https://doi.org/10.1007/s10751-006-9280-y

ISSN

03043843

First Page

333

Last Page

338

Issue

1-4

Volume

165

Grant

R37 GM20194

Fund Ref

Brown University

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