Journal
NANO LETTERS
Volume 10, Issue 7, Pages 2296-2302Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl903518f
Keywords
Anatase TiO2 nanoparticles; TiO2 nanoconjugates; Arabidopsis thahana; X-ray fluorescence microscopy
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Funding
- NIH [EB002100-03]
- KTRD Center in Lexington, Kentucky
- US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
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While few publications have documented the uptake of nanoparticles in plants, this is the first study describing uptake and distribution of the ultrasmall anatase TiO2 in the plant model system Arabidopsis We modified the nanoparticle surface with Alizarin red S and sucrose and demonstrated that nanoconjugates traversed cell walls, entered into plant cells, and accumulated in specific subcellular locations Optical and X-ray fluorescence microscopy coregistered the nanoconjugates in cell vacuoles and nuclei
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