Nanotechnology in Agriculture and Food Science
Life Cycle of Nanoparticles in the Environment: Nanomaterials and Agriculture Application - Life Cycle through Their Direct Application and Indirect Application in Biosludge-Amended Soils
Bottero, JY; Wiesner, MR; Labille, J; Auffan, M; Vidal, V; Santaella, C
Recently, a global approach of the life cycle releases of nanomaterials (NMs) evaluated the release from wastewater treatment plant (WWTP) to biosludges between 75 and 97%. The release of NMs to the soils from different applications except agriculture represented approximately 1/3 of the global flux for TiO2, Ag, ZnO, Fe and Fe oxides, Al2O3, and CeO2. The interactions between NPs and vascular plants have been reviewed. This review cited studies on the bioaccumulation of SWCNT, MWCNT, CeO2, CuO, Cu, Fe3O4, TiO2, ZnO, and C70 in various plants. Micro- and nano-X-ray tomography is a powerful tool for visualizing the bioaccumulation and transfer of NPs within the cells. The presence of metals and NPs in soil amended by biosolids in agricultural sites has been evaluated in Texas. NPs as ZnO, CeO2, and Ag present in biowastes coming from WWTP is important in terms of possible bioavailability and possible translocation within the roots, shoots, and so on.
