Uptake and distribution of ultrasmall anatase TiO2 alizarin red s nanoconjugates in arabidopsis thaliana

Jasmina Kurepa, Tatjana Paunesku, Stefan Vogt, Hans Arora, Bryan M. Rabatic, Jinju Lu, M. Beau Wanzer, Gayle E Woloschak, Jan A. Smalle

Research output: Contribution to journalArticlepeer-review

246 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)2296-2302
Number of pages7
JournalNano letters
Issue number7
StatePublished - Jul 14 2010


  • Anatase TiO nanoparticles
  • Arabidopsis thaliana
  • TiO nanoconjugates
  • X-ray fluorescence microscopy

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering


Dive into the research topics of 'Uptake and distribution of ultrasmall anatase TiO<sub>2</sub> alizarin red s nanoconjugates in arabidopsis thaliana'. Together they form a unique fingerprint.

Cite this