Abstract
In this work, magnesium oxide nanoparticles were synthesized by the sol-gel route and their ecotoxicity was tested in worms of the Eisenia andrei species. Magnesium oxide nanoparticles were characterized by XRD, surface area via BET, TEM and SEM-FEG/EDS. The lethality test with Eisenia andrei earthworm species followed the recommendations of ISO 11268-1 (ISO, 2012) in a completely randomized design with six replicates for each concentration tested (1.06, 2.12, 4.24, 8.48 and 16.96 μg of NPs-MgO/kg of soil), plus the control. The concentrations were mixed to the tropical natural soils, Entisol Typic Quartzipsamments and Oxisol, with no agricultural use history. The morphological and structural analyses of the nanoparticles indicated the formation of magnesium oxide with cubic structure, constituting agglomerates of nanostructures of the order of 20 to 50 nm. The results of toxicity were submitted to analysis of variance (ANOVA One-way), followed by the Dunnett test (p <0.05). Based on standardized toxicological tests it was found that NPs-MgO, at the concentrations tested, did not affect the survival of Eisenia andrei species in the natural soils studied. Keywords: Terrestrial toxicity of nanoparticles, edaphic fauna, Terrestrial toxicity of magnesium oxide nanoparticles.
Highlights
Several metal oxides have been studied and produced at the nanoscale due to their potential for application in several segments [1]
Magnesium oxide nanoparticles were synthesized by the sol-gel route and their ecotoxicity was tested in worms of the Eisenia andrei species
Magnesium oxide nanoparticles were characterized by XRD, surface area via BET, TEM and SEM-FEG/EDS
Summary
Several metal oxides have been studied and produced at the nanoscale due to their potential for application in several segments [1] The development of these nanomaterials has expanded the opportunities of many industrial segments, such as the industries dedicated to agriculture, pharmaceutical industries and for the chemical industries. Magnesium oxide nanoparticles (NPs-MgO) are a good example and have been studied because they present possible applications as a catalyst, as antimicrobial agents, in the remediation of toxic water and as an additive for refractory materials [4]. It has been used in electrochemical sensors and in biocomponents [5], as packaging additives [1] and in the addition of inks [6]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
