Environmental factors modify silver nanoparticles ecotoxicity in Chydorus eurynotus (Cladocera).

Autor: Andrade VS; Instituto Nacional de Limnología (CONICET-UNL), Santa Fe, Argentina. vandrade@inali.unl.edu.ar., Ale A; Instituto Nacional de Limnología (CONICET-UNL), Santa Fe, Argentina., Antezana PE; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de la Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina., Desimone MF; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de la Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina., Cazenave J; Instituto Nacional de Limnología (CONICET-UNL), Santa Fe, Argentina.; Departamento de Ciencias Naturales, Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral (FHUC-UNL), Santa Fe, Argentina., Gutierrez MF; Instituto Nacional de Limnología (CONICET-UNL), Santa Fe, Argentina.; Escuela Superior de Sanidad 'Dr. Ramon Carrillo', Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral (FBCB-UNL), Santa Fe, Argentina.
Jazyk: angličtina
Zdroj: Ecotoxicology (London, England) [Ecotoxicology] 2024 Sep; Vol. 33 (7), pp. 683-696. Date of Electronic Publication: 2024 Jun 11.
DOI: 10.1007/s10646-024-02766-8
Abstrakt: Silver nanoparticles (AgNPs) are among the most produced nanomaterials in the world and are incorporated into several products due to their biocide and physicochemical properties. Since freshwater bodies are AgNPs main final sink, several consequences for biota are expected to occur. With the hypothesis that AgNPs can interact with environmental factors, we analyzed their ecotoxicity in combination with humic acids and algae. In addition to the specific AgNPs behavior in the media, we analyzed the mortality, growth, and phototactic behavior of Chydorus eurynotus (Cladocera) as response variables. While algae promoted Ag + release, humic acids reduced it by adsorption, and their combination resulted in an intermediated Ag + release. AgNPs affected C. eurynotus survival and growth, but algae and humic acids reduced AgNPs lethality, especially when combined. The humic acids mitigated AgNP effects in C. eurynotus growth, and both factors improved its phototactic behavior. It is essential to deepen the study of the isolated and combined influences of environmental factors on the ecotoxicity of nanoparticles to achieve accurate predictions under realistic exposure scenarios.
(© 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
Databáze: MEDLINE
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