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Nanoparticles: Natural Agricultural Nanomaterials in Soil, Water, and Air

Nanoparticles: Natural Agricultural Nanomaterials in Soil, Water, and Air. Alexandra Navrotsky University of California, Davis. Applying the Tools and Concepts of Nanoscale Science and Technology to Ag-related Problems. - Fundamental properties - Nutrient and contaminant transport

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Nanoparticles: Natural Agricultural Nanomaterials in Soil, Water, and Air

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  1. Nanoparticles: Natural Agricultural Nanomaterials in Soil, Water, and Air Alexandra Navrotsky University of California, Davis Applying the Tools and Concepts of Nanoscale Science and Technology to Ag-related Problems - Fundamental properties - Nutrient and contaminant transport - Biological interactions

  2. Nanoparticles in Soil • Clays, zeolites, imogolite • Iron and manganese oxides • Organic particles • Coated and core-shell particles • Issues of nutrient and pollutant transport, water retention, texture, bioavailability. • Soil is a nano- micro- macro-composite

  3. Imogolite: A Natural Nanotube

  4. Nanoparticles in Water • Aluminum and iron oxides and other colloidal particles • Transport nutrients and pollutants, both organic and inorganic • Markers of sources • Modify (increase or decrease) concentrations and bioavailability calculated from simple equilibria of dissolved species

  5. Nanoparticles in Air • Natural sources plus agricultural dust, industrial and automotive pollution • Trace sources by chemistry and mineralogy • Contaminant and nutrient transport • Health effects • Global climate effects

  6. Nanoparticles and Animals • Feed additives • Waste management • Useful products from waste • Odor control

  7. Understanding Nanoparticles and Nanoscale Phenomena • can make agriculture more efficient and • help mitigate environmental problems

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