Elucidating the Role of Dissolution in CeO2 Nanoparticle Plant Uptake by Smart Radiolabeling

Angew Chem Int Ed Engl. 2017 Jun 19;56(26):7411-7414. doi: 10.1002/anie.201702421. Epub 2017 May 19.

Abstract

The identification of major uptake pathways in plants is an important factor when evaluating the fate of manufactured nanoparticles in the environment and the associated risks. Using different radiolabeling techniques we were able to show a predominantly particulate uptake for CeO2 nanoparticles in contrast to a possible uptake in the form of ionic cerium.

Keywords: cerium dioxide; nanoparticles; plant uptake; radiochemistry.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Autoradiography
  • Biological Transport
  • Cerium / chemistry*
  • Cerium / metabolism
  • Metal Nanoparticles / chemistry*
  • Particle Size
  • Plants / metabolism*
  • Powders
  • Praseodymium / chemistry*
  • Radioactive Tracers
  • Solubility

Substances

  • Powders
  • Radioactive Tracers
  • Cerium
  • ceric oxide
  • Praseodymium