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Page Addition or Correction In Situ Synchrotron X-ray
Fluorescence Mapping and Speciation of CeO2 and ZnO
Nanoparticles in Soil Cultivated Soybean (Glycine max) Link to
Journal Abstract With the increased use of engineered
nanomaterials such as ZnO and CeO2 nanoparticles (NPs), these
materials will inevitably be released into the environment, with
unknown consequences. In addition, the potential storage of
these NPs or their biotransformed products in
edible/reproductive organs of crop plants can cause them to
enter into the food chain and the next plant generation. Few
reports thus far have addressed the entire life cycle of plants
grown in NP-contaminated soil. Soybean (Glycine max) seeds were
germinated and grown to full maturity in organic farm soil
amended with either ZnO NPs at 500 mg/kg or CeO2 NPs at 1000
mg/kg. At harvest, synchrotron ì-XRF and ì-XANES analyses were
performed on soybean tissues, including pods, to determine the
forms of Ce