title: Uptake and distribution of ultrasmall anatase TiO2 Alizarin red S nanoconjugates in Arabidopsis thaliana.
abstract: While few publications have documented the uptake of nanoparticles in plants, this is the first study describing uptake and distribution of the ultrasmall anatase TiO(2) 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.
authors.affiliation: Department of Plant and Soil Sciences, University of Kentucky, Lexington, Kentucky 40546, USA.
authors.forename: Jasmina
authors.initials: J
authors.lastname: Kurepa
authors.forename: Tatjana
authors.initials: T
authors.lastname: Paunesku
authors.forename: Stefan
authors.initials: S
authors.lastname: Vogt
authors.forename: Hans
authors.initials: H
authors.lastname: Arora
authors.forename: Bryan M
authors.initials: BM
authors.lastname: Rabatic
authors.forename: Jinju
authors.initials: J
authors.lastname: Lu
authors.forename: M Beau
authors.initials: MB
authors.lastname: Wanzer
authors.forename: Gayle E
authors.initials: GE
authors.lastname: Woloschak
authors.forename: Jan A
authors.initials: JA
authors.lastname: Smalle
mesh_terms: D000880:Anthraquinones / Q000737:chemistry / Q000378:metabolism*; D017360:Arabidopsis / Q000378:metabolism / Q000648:ultrastructure*; D001692:Biological Transport; D008856:Microscopy, Fluorescence; D053758:Nanoparticles / Q000737:chemistry; D014025:Titanium / Q000737:chemistry / Q000378:metabolism*; D014965:X-Rays
chemical_list: D000880:Anthraquinones; C009495:titanium dioxide; C004468:Alizarin Red S; D014025:Titanium