The impact of metal nanoparticles (NPs) in biological systems is still not well understood. Little is known about the response of plants, the first trophic level, to NP exposure; consequently, their possible role on the fate and transport of NPs in ecosystems is unknown. In this study, soybean plants (Glycine max) were grown for 48 days in organic farm soil spiked with either ZnO or CeO2 NPs. Micro X-Ray fluorescence (�XRF) maps were performed for different sections of the plant and X-Ray absorption near edge structure (XANES) spectroscopic analysis was performed on selected �XRF spots. Linear combination analysis showed no contribution from ZnO NPs in any of the plant XANES spectra suggesting different ligands for the Zn. XANES analysis revealed that the Ce in the plant remained as CeO2 however little was translocated to the aerial part of the plant

Synchrotron imaging of the uptake and speciation of ZnO and CeO<sub>2</sub> in soil cultivated soybean (Glycine max)

244th National Meeting (2012)

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Synchrotron imaging of the uptake and speciation of ZnO and CeO2 in soil cultivated soybean (Glycine max)

Synchrotron imaging of the uptake and speciation of ZnO and CeO₂ in soil cultivated soybean (Glycine max)