Phytotoxicity of ZnO/kaolinite nanocomposite-is anchoring the right way to lower environmental risk?

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F19%3A00508088" target="_blank" >RIV/61389030:_____/19:00508088 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1007/s11356-019-05529-9" target="_blank" >http://dx.doi.org/10.1007/s11356-019-05529-9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11356-019-05529-9" target="_blank" >10.1007/s11356-019-05529-9</a>

Result language

angličtina

Original language name

Phytotoxicity of ZnO/kaolinite nanocomposite-is anchoring the right way to lower environmental risk?

Original language description

The importance of studies on photoactive zinc oxide nanoparticles (ZnO NPs) increases with increasing environmental pollution. Since the ZnO NPs (and NPs in general) also pose an environmental risk, and since an understanding of the risk is still not sufficient, it is important to prevent their spread into the environment. Anchoring on phyllosilicate particles of micrometric size is considered to be a useful way to address this problem, however, so far mainly on the basis of leaching tests in pure water. In the present study, the phytotoxicity of kaolinite/ZnO NP (10, 30, and 50 wt.%) nanocomposites in concentrations 10, 100, and 1000 mg/dm3 tested on white mustard (Sinapis alba) seedlings was found to be higher (relative lengths of roots are ~ 1.4 times lower) compared with seedlings treated with pristine ZnO NPs. The amount of Zn accumulated from the nanocomposites in white mustard tissues was ~ 2 times higher than can be expected based on the ZnO content in the nanocomposites compared with the ZnO content (100 wt.%) in pristine ZnO NPs. For the false fox-sedge (Carex otrubae) plants, the amount of Zn accumulated in roots and leaves was ~ 2.25 times higher and ~ 2.85 times higher, respectively, compared with that of the pristine ZnO NPs (with respect to the ZnO content). Increased phytotoxicity of the nanocomposites and higher uptake of Zn by plants from the nanocomposites in comparison with pristine ZnO NPs suggest that the immobilization of ZnO NPs on the kaolinite does not reduce the environmental risk.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10609 - Biochemical research methods

Project

<a href="/en/project/EF16_019%2F0000738" target="_blank" >EF16_019/0000738: Centre for Experimental Plant Biology</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Environmental Science and Pollution Research

ISSN

0944-1344

e-ISSN

—

Volume of the periodical

26

Issue of the periodical within the volume

21

Country of publishing house

DE - GERMANY

Number of pages

13

Pages from-to

22069-22081

UT code for WoS article

000482211100084

EID of the result in the Scopus database

2-s2.0-85066467905