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@article{1808085, author = {Malina, Tomáš and Lamaczová, Adéla and Maršálková, Eliška and Zbořil, Radek and Maršálek, Blahoslav}, article_location = {OXFORD}, doi = {http://dx.doi.org/10.1016/j.chemosphere.2021.132739.}, keywords = {Graphene oxide; Aquatic plants; Lemna minor; Phytotoxicity; Mechanical injury}, issn = {0045-6535}, journal = {Chemosphere}, title = {Graphene oxide interaction with Lemna minor: Root barrier strong enough to prevent nanoblade-morphology-induced toxicity}, url = {https://www.sciencedirect.com/science/article/pii/S0045653521032112}, year = {2021} }
TY - JOUR ID - 1808085 AU - Malina, Tomáš - Lamaczová, Adéla - Maršálková, Eliška - Zbořil, Radek - Maršálek, Blahoslav PY - 2021 TI - Graphene oxide interaction with Lemna minor: Root barrier strong enough to prevent nanoblade-morphology-induced toxicity JF - Chemosphere PB - PERGAMON-ELSEVIER SCIENCE LTD SN - 00456535 KW - Graphene oxide KW - Aquatic plants KW - Lemna minor KW - Phytotoxicity KW - Mechanical injury UR - https://www.sciencedirect.com/science/article/pii/S0045653521032112 N2 - The production of graphene oxide (GO) along with its applications in various aquatic environments is vastly increasing thanks to its rapidly expanding range of new GO-based environmental technologies. Therefore, the fate of GO in aquatic environments is an important issue, as it could become an environmental challenge if its potential toxic mechanism is not addressed properly. Number of studies reporting the toxicity of GO to various aquatic organisms is still increasing. However, research data on the possible toxic mechanism of GO towards aquatic plants have yet to be collected, especially regarding GO's surface chemistry. Here, we studied the interaction of three differently oxidized GO systems with model aquatic plant Lemna minor. We found that although none of the three GOs caused lethal phytotoxicity to Lemna after 7 days, the mechanism of action was dependent on the GO's surface oxidation. Based on the amount of functional surface groups, the GO was able to directly interact with the Lemna's root through its edges. However, in this case in contrast to algae and crustaceans, the interaction did not lead to a mechanical damage. Therefore, our results showed that GO is not hazardous to Lemna minor even at very high concentrations (up to 25 mg/L), because the root barrier proved to be strong enough to prevent GO's penetration and its consequent toxicity. ER -
MALINA, Tomáš, Adéla LAMACZOVÁ, Eliška MARŠÁLKOVÁ, Radek ZBOŘIL and Blahoslav MARŠÁLEK. Graphene oxide interaction with Lemna minor: Root barrier strong enough to prevent nanoblade-morphology-induced toxicity. \textit{Chemosphere}. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD, 2021. ISSN~0045-6535. Available from: https://dx.doi.org/10.1016/j.chemosphere.2021.132739.
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