Bioaccumulation of Transition Metal Oxide Nanoparticles and Their Influence on Early Growth Stages of Vigna unguiculata Seeds

Bioaccumulation of Transition Metal Oxide Nanoparticles and Their Influence on Early Growth... A reasonable understanding of the impact and health risk of the metal oxide nanoparticles treated on edible plants is necessary in order to use nanomaterials in food and medicine. In this study, we investigate the uptake and toxic response of transition metal oxides, namely Fe O , CuO and ZnO nanoparticles synthesised by co-precipitation method using nitrate salts of the respective 2 3 metals as precursors. The characterisation of all the prepared nanoparticles shows the purity above 97% with rod-like morphol- ogy. Cowpea (Vigna unguiculata) seeds are soaked in a monodispersed solution of nanoparticles and kept for seed germination and plant growth. Transport and accumulation of the nanoparticles treated in the seeds are assessed through X-ray fluorescence spectroscopy which confirms the uptake of the nanoparticles with respect to the treatment regime. The seeds soaked in CuO nanoparticles reveal better seed germination percentage, an increased coleoptile length and a plant height at 100 ppm concen- tration than other nanoparticles. This study proves the limitation of CuO nanoparticle application for better growth of cowpea plants whereas iron and zinc oxide nanoparticles show promising response in plant growth, uptake and bioavailability in seeds even at higher treatments. . . . . Keywords http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png BioNanoScience Springer Journals

Bioaccumulation of Transition Metal Oxide Nanoparticles and Their Influence on Early Growth Stages of Vigna unguiculata Seeds

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Publisher
Springer US
Copyright
Copyright © 2018 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Engineering; Circuits and Systems; Biological and Medical Physics, Biophysics; Nanotechnology; Biomaterials
ISSN
2191-1630
eISSN
2191-1649
D.O.I.
10.1007/s12668-018-0535-2
Publisher site
See Article on Publisher Site

Abstract

A reasonable understanding of the impact and health risk of the metal oxide nanoparticles treated on edible plants is necessary in order to use nanomaterials in food and medicine. In this study, we investigate the uptake and toxic response of transition metal oxides, namely Fe O , CuO and ZnO nanoparticles synthesised by co-precipitation method using nitrate salts of the respective 2 3 metals as precursors. The characterisation of all the prepared nanoparticles shows the purity above 97% with rod-like morphol- ogy. Cowpea (Vigna unguiculata) seeds are soaked in a monodispersed solution of nanoparticles and kept for seed germination and plant growth. Transport and accumulation of the nanoparticles treated in the seeds are assessed through X-ray fluorescence spectroscopy which confirms the uptake of the nanoparticles with respect to the treatment regime. The seeds soaked in CuO nanoparticles reveal better seed germination percentage, an increased coleoptile length and a plant height at 100 ppm concen- tration than other nanoparticles. This study proves the limitation of CuO nanoparticle application for better growth of cowpea plants whereas iron and zinc oxide nanoparticles show promising response in plant growth, uptake and bioavailability in seeds even at higher treatments. . . . . Keywords

Journal

BioNanoScienceSpringer Journals

Published: Jun 4, 2018

References

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