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Original title:
LIBS assessment of spatial photon-upconversion nanoparticle distribution in model plants (R. sativus and L. minor)
Authors: Modlitbová, P. ; Novotný, K. ; Hlaváček, Antonín ; Pořízka, P. ; Kaiser, J.
Document type: Papers
Conference/Event: EMSLIBS 2019. Euro-Mediterranean Symposium on Laser-Induced Breakdown Spectroscopy /10./, Brno (CZ), 20190908
Year: 2019
Language: eng
Abstract: In the present study, radish (Raphanus sativus L.) and common duckweed (Lemna minor L.) were treated with an aqueous dispersion of carboxylated silica-coated photon-upconversion nanoparticles containing rare-earth elements (Y, Yb, and Er). The total content of rare earths and their bioaccumulation factors were determined in the root, hypocotyl, and leaves of R. sativus after 72 hours, and in L. minor fronds after 168 hours. In R. sativus, translocation factors were determined as the ratio of rare earths content in hypocotyl versus roots and in leaves versus hypocotyl. The lengths of the root and hypocotyl in R. sativus, as well as the frond area in L. minor were monitored as toxicity end points. To distinguish rare-earth bioaccumulation patterns, two-dimensional maps of elemental distribution in the whole R. sativus plant and in L. minor fronds were obtained by using laser-induced breakdown spectroscopy with a lateral resolution of 100 μm. Obtained results revealed that the tested nanoparticles became adsorbed on L. minor fronds and R. sativus roots, and got transferred from roots through the hypocotyl into leaves in R. sativus. Our results show that bioaccumulation patterns and spatial distribution of rare earths in nanoparticle-treated plants differ from those of positive control (the mixture of YCl3, YbCl3, and ErCl3).
Keywords: bioaccumulation; luminescent nanomaterials; photonupconversion nanoparticles
Project no.: GJ18-03367Y (CEP)
Funding provider: GA ČR
Host item entry: EMSLIBS 2019 Book of abstracts, ISBN 978-80-88195-13-9
Note: Související webová stránka: https://emslibs.com/
Institution: Institute of Analytical Chemistry AS ČR (web)
Document availability information: Fulltext is available in the digital repository of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0301796
Permalink: http://www.nusl.cz/ntk/nusl-407983
The record appears in these collections:
Research > Institutes ASCR > Institute of Analytical Chemistry
Conference materials > Papers
Authors: Modlitbová, P. ; Novotný, K. ; Hlaváček, Antonín ; Pořízka, P. ; Kaiser, J.
Document type: Papers
Conference/Event: EMSLIBS 2019. Euro-Mediterranean Symposium on Laser-Induced Breakdown Spectroscopy /10./, Brno (CZ), 20190908
Year: 2019
Language: eng
Abstract: In the present study, radish (Raphanus sativus L.) and common duckweed (Lemna minor L.) were treated with an aqueous dispersion of carboxylated silica-coated photon-upconversion nanoparticles containing rare-earth elements (Y, Yb, and Er). The total content of rare earths and their bioaccumulation factors were determined in the root, hypocotyl, and leaves of R. sativus after 72 hours, and in L. minor fronds after 168 hours. In R. sativus, translocation factors were determined as the ratio of rare earths content in hypocotyl versus roots and in leaves versus hypocotyl. The lengths of the root and hypocotyl in R. sativus, as well as the frond area in L. minor were monitored as toxicity end points. To distinguish rare-earth bioaccumulation patterns, two-dimensional maps of elemental distribution in the whole R. sativus plant and in L. minor fronds were obtained by using laser-induced breakdown spectroscopy with a lateral resolution of 100 μm. Obtained results revealed that the tested nanoparticles became adsorbed on L. minor fronds and R. sativus roots, and got transferred from roots through the hypocotyl into leaves in R. sativus. Our results show that bioaccumulation patterns and spatial distribution of rare earths in nanoparticle-treated plants differ from those of positive control (the mixture of YCl3, YbCl3, and ErCl3).
Keywords: bioaccumulation; luminescent nanomaterials; photonupconversion nanoparticles
Project no.: GJ18-03367Y (CEP)
Funding provider: GA ČR
Host item entry: EMSLIBS 2019 Book of abstracts, ISBN 978-80-88195-13-9
Note: Související webová stránka: https://emslibs.com/
Institution: Institute of Analytical Chemistry AS ČR (web)
Document availability information: Fulltext is available in the digital repository of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0301796
Permalink: http://www.nusl.cz/ntk/nusl-407983
The record appears in these collections:
Research > Institutes ASCR > Institute of Analytical Chemistry
Conference materials > Papers
Record created 2019-12-09, last modified 2023-12-06