In this section we focus on the structure and properties of natural iron (oxyhydr) oxide nanoparticles (ferrihydrite) and on the structure and environmental transformations of silver nanoparticles, which are currently the most widely used engineered nanoparticles in nanotechnology because of their antibacterial and antifungal properties. We also explore the effect of particle size on mineral reactivity.

There is growing recognition that mineral nanoparticles (nanoscale versions of bulk minerals – e.g., haematite) and nanominerals (minerals or mineraloids that occur only in nanoscale forms – e.g., ferrihydrite) play major roles in environmental processes (Banfield and Navrotsky, 2001; Hochella...

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