Use of a nanoplastic carrier for assessing the aquatic toxicity of an organo-phosphite polymer additive

This work reports the production of nanoplastics (NPs) from polypropylene (PP) free of the antioxidant Irgafos® 168 (IRG) and alkane oligomers (ALK). PP pellets were milled into a powder with particle sizes in the 100–500 μm range. Additives and oligomers were removed using dichloromethane, and the...

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Detalhes bibliográficos
Autores: Schiano, Marica E., Edo, Carlos, Blázquez Blázquez, Enrique, Cerrada, María L., Fernández Piñas, Francisca, Rosal, Roberto
Formato: artículo
Fecha de publicación:2024
País:España
Recursos:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/716382
Acesso em linha:http://hdl.handle.net/10486/716382
https://dx.doi.org/10.1016/j.envpol.2024.124837
Access Level:acceso abierto
Palavra-chave:Freshwater environment
ecotoxicity
freshwater environment
nanoplastics
polypropylene
Biología y Biomedicina / Biología
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spelling Use of a nanoplastic carrier for assessing the aquatic toxicity of an organo-phosphite polymer additiveSchiano, Marica E.Edo, CarlosBlázquez Blázquez, EnriqueCerrada, María L.Fernández Piñas, FranciscaRosal, RobertoFreshwater environmentecotoxicityfreshwater environmentnanoplasticspolypropyleneBiología y Biomedicina / BiologíaThis work reports the production of nanoplastics (NPs) from polypropylene (PP) free of the antioxidant Irgafos® 168 (IRG) and alkane oligomers (ALK). PP pellets were milled into a powder with particle sizes in the 100–500 μm range. Additives and oligomers were removed using dichloromethane, and the powder exposed to UV irradiation, followed by filtration through 1 μm filters. PP suspensions, free of antioxidant and oligomers, were reloaded with IRG and ALK to their original commercial concentrations. This approach allowed testing the aquatic toxicity of IRG at concentrations compromised by water solubility limits. Toxicity assays using the cladoceran Daphnia magna with 24–48 h immobilization of neonates as endpoint showed toxicity for NPs containing IRG, with EC20 (48 h) in the 1.8–3.5 mg/L range, that corresponded to IRG exposure <1.2 μg/L. Suspensions of PP containing ALK, but not IRG, exhibited low toxicity (EC20 > 20 mg/L). The results allowed estimating the toxicity of IRG with a EC50 value of 3.3 ± 1.1 μg/L. Assays with different proportions of IRG and its oxidized form showed no differences. This work demonstrated the aquatic toxicity of IRG, for which there were no previous data, and developed a method for testing the toxicity of non-polar additives without being limited by their solubilityThe authors acknowledge the financial support provided by the Spanish Government, Ministry of Science, grants PID2020-113769RB-C21/C22, PID2020-114930GB-I00, PLEC2021-007693 and TED2021-131609B-C32/33ElsevierDepartamento de BiologíaFacultad de Ciencias20242024-11-15research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/716382https://dx.doi.org/10.1016/j.envpol.2024.124837reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7163822026-06-23T12:46:27Z
dc.title.none.fl_str_mv Use of a nanoplastic carrier for assessing the aquatic toxicity of an organo-phosphite polymer additive
title Use of a nanoplastic carrier for assessing the aquatic toxicity of an organo-phosphite polymer additive
spellingShingle Use of a nanoplastic carrier for assessing the aquatic toxicity of an organo-phosphite polymer additive
Schiano, Marica E.
Freshwater environment
ecotoxicity
freshwater environment
nanoplastics
polypropylene
Biología y Biomedicina / Biología
title_short Use of a nanoplastic carrier for assessing the aquatic toxicity of an organo-phosphite polymer additive
title_full Use of a nanoplastic carrier for assessing the aquatic toxicity of an organo-phosphite polymer additive
title_fullStr Use of a nanoplastic carrier for assessing the aquatic toxicity of an organo-phosphite polymer additive
title_full_unstemmed Use of a nanoplastic carrier for assessing the aquatic toxicity of an organo-phosphite polymer additive
title_sort Use of a nanoplastic carrier for assessing the aquatic toxicity of an organo-phosphite polymer additive
dc.creator.none.fl_str_mv Schiano, Marica E.
Edo, Carlos
Blázquez Blázquez, Enrique
Cerrada, María L.
Fernández Piñas, Francisca
Rosal, Roberto
author Schiano, Marica E.
author_facet Schiano, Marica E.
Edo, Carlos
Blázquez Blázquez, Enrique
Cerrada, María L.
Fernández Piñas, Francisca
Rosal, Roberto
author_role author
author2 Edo, Carlos
Blázquez Blázquez, Enrique
Cerrada, María L.
Fernández Piñas, Francisca
Rosal, Roberto
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Biología
Facultad de Ciencias
dc.subject.none.fl_str_mv Freshwater environment
ecotoxicity
freshwater environment
nanoplastics
polypropylene
Biología y Biomedicina / Biología
topic Freshwater environment
ecotoxicity
freshwater environment
nanoplastics
polypropylene
Biología y Biomedicina / Biología
description This work reports the production of nanoplastics (NPs) from polypropylene (PP) free of the antioxidant Irgafos® 168 (IRG) and alkane oligomers (ALK). PP pellets were milled into a powder with particle sizes in the 100–500 μm range. Additives and oligomers were removed using dichloromethane, and the powder exposed to UV irradiation, followed by filtration through 1 μm filters. PP suspensions, free of antioxidant and oligomers, were reloaded with IRG and ALK to their original commercial concentrations. This approach allowed testing the aquatic toxicity of IRG at concentrations compromised by water solubility limits. Toxicity assays using the cladoceran Daphnia magna with 24–48 h immobilization of neonates as endpoint showed toxicity for NPs containing IRG, with EC20 (48 h) in the 1.8–3.5 mg/L range, that corresponded to IRG exposure <1.2 μg/L. Suspensions of PP containing ALK, but not IRG, exhibited low toxicity (EC20 > 20 mg/L). The results allowed estimating the toxicity of IRG with a EC50 value of 3.3 ± 1.1 μg/L. Assays with different proportions of IRG and its oxidized form showed no differences. This work demonstrated the aquatic toxicity of IRG, for which there were no previous data, and developed a method for testing the toxicity of non-polar additives without being limited by their solubility
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-11-15
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/716382
https://dx.doi.org/10.1016/j.envpol.2024.124837
url http://hdl.handle.net/10486/716382
https://dx.doi.org/10.1016/j.envpol.2024.124837
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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