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Synchrotron Micro-XRF and Micro-XANES Confirmation of the Uptake and Translocation of TiO2 Nanoparticles in Cucumber (Cucumis sativus) Plants
Abstract
Advances in nanotechnology have raised concerns about possible effects of engineered nanomaterials (ENMs) in the environment, especially in terrestrial plants. In this research, the impacts of TiO(2) nanoparticles (NPs) were evaluated in hydroponically grown cucumber (Cucumis sativus) plants. Seven day old seedlings were treated with TiO(2) NPs at concentrations varying from 0 to 4000 mg L(-1). At harvest, the size of roots and shoots were measured. In addition, micro X- ray fluorescence (micro-XRF) and micro X-ray absorption spectroscopy (micro-XAS), respectively, were used to track the presence and chemical speciation of Ti within plant tissues. Results showed that at all concentrations, TiO(2) significantly increased root length (average >300%). By using micro-XRF it was found that Ti was transported from the roots to the leaf trichomes, suggesting that trichomes are possible sink or excretory system for the Ti. The micro-XANES spectra showed that the absorbed Ti was present as TiO(2) within the cucumber tissues, demonstrating that the TiO(2) NPs were not biotransformed.
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Citations
Cited by
Nanoparticles in Plants: Uptake, Transport and Physiological Activity in Leaf and Root
Wang, X., Xie, H., Wang, P., & Yin, H. (2023) · Materials · doi:10.3390/ma16083097 · Cited by 518
Kapilashrami, M., Zhang, Y., Liu, Y.-S., Hagfeldt, A., & Guo, J. (2014) · Chemical Reviews · doi:10.1021/cr5000893 · Cited by 508
Avellan, A., Yun, J., Morais, B. P., Clement, E. T., Rodrigues, S. M., & Lowry, G. V. (2021) · Environmental Science & Technology · doi:10.1021/acs.est.1c00178 · Cited by 412
Du, W., Tan, W., Peralta-Videa, J. R., Gardea-Torresdey, J. L., Ji, R., Yin, Y., & Guo, H. (2017) · Plant Physiology and Biochemistry · doi:10.1016/j.plaphy.2016.04.024 · Cited by 308
Self-citationGräfe, M., Donner, E., Collins, R. N., & Lombi, E. (2014) · Analytica Chimica Acta · doi:10.1016/j.aca.2014.02.044 · Cited by 186
Metadata
- Authors
- Servin, A. D., Castillo-Michel, H., Hernandez-Viezcas, J. A., Diaz, B. C., Peralta-Videa, J. R., & Gardea-Torresdey, J. L.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2012-07-05
- Volume
- 46
- Issue
- 14
- Pages
- 7637-7643
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2330125450
- Cited by
- 270
- References
- 0
- FWCI
- 5.94
- Type
- journal article
- Language
- en
- Open access
- closed
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- Servin, A. D., Castillo-Michel, H., Hernandez-Viezcas, J. A., Diaz, B. C., Peralta-Videa, J. R., & Gardea-Torresdey, J. L. (2012). Synchrotron Micro-XRF and Micro-XANES Confirmation of the Uptake and Translocation of TiO2 Nanoparticles in Cucumber (Cucumis sativus) Plants. Environmental Science & Technology. https://doi.org/10.1021/es300955b
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