Uptake, translocation, weathering and speciation of gold nanoparticles in potato, radish, carrot and lettuce crops

0547993 - ÚEB 2022 RIV NL eng J - Journal Article
Malejko, J. - Godlewska-Żyłkiewicz, B. - Vaněk, Tomáš - Landa, Přemysl - Nath, J. - Dror, I. - Berkowitz, B.
Uptake, translocation, weathering and speciation of gold nanoparticles in potato, radish, carrot and lettuce crops.
Journal of Hazardous Materials. Roč. 418, SEP 15 (2021), č. článku 126219. ISSN 0304-3894. E-ISSN 1873-3336
R&D Projects: GA MŠMT(CZ) EF16_019/0000738
Institutional support: RVO:61389030
Keywords : Au-NPs * Nanoparticle speciation * NPs quantification in plant tissues * Plant uptake
OECD category: Biochemical research methods
Impact factor: 14.224, year: 2021
Method of publishing: Open access
http://doi.org/10.1016/j.jhazmat.2021.126219

Extensive use of nanomaterials in agriculture will inevitably lead to their release to the environment in significant loads. Thus, understanding the fate of nanoparticles in the soil-plant environment, and potential presence and consequent implication of nanoparticles in food and feed products, is required. We study plant uptake of gold nanoparticles from soil, and their distribution, translocation and speciation (in terms of particle size change and release of ionic Au) in the different plant tissues of four important crops (potato, radish, carrot and lettuce). Our new analytical protocol and experiments show the feasibility of determining the presence, concentration and distribution of nanoparticles in different plant parts, which differ from plant to plant. Critically, we identify the evident capacity of plants to break down (or substantially change the properties of) nanoparticles in the rhizosphere prior to uptake, as well as the evident capacity of plants to reorganize ionic metals as nanoparticles in their tissues. This could lead to nanoparticle exposure through consumption of crops.
Permanent Link: http://hdl.handle.net/11104/0324129