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Nanominerals, Mineral Nanoparticles, and Earth Systems

Michael F. Hochella Jr., Steven K. Lower, Patricia A. Maurice, R. Lee Penn, Nita Sahai, Donald L. Sparks and Benjamin S. Twining
Science
New Series, Vol. 319, No. 5870 (Mar. 21, 2008), pp. 1631-1635
Stable URL: http://www.jstor.org/stable/20053624
Page Count: 5
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Abstract

Minerals are more complex than previously thought because of the discovery that their chemical properties vary as a function of particle size when smaller, in at least one dimension, than a few nanometers, to perhaps as much as several tens of nanometers. These variations are most likely due, at least in part, to differences in surface and near-surface atomic structure, as well as crystal shape and surface topography as a function of size in this smallest of size regimes. It has now been established that these variations may make a difference in important geochemical and biogeochemical reactions and kinetics. This recognition is broadening and enriching our view of how minerals influence the hydrosphere, pedosphere, biosphere, and atmosphere.

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