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Effects of Amorphous Silica Nanopowders on the Avoidance Behavior of Five Soil Species—A Screening Study

Silica nanoparticles (SiO(2)NPs) are one of the most used in commercial products and biomedical tools, however, their environmental effects have not been fully described. Although negative effects of SiO(2)NPs on the behavior of freshwater invertebrates have been reported, the knowledge is limited,...

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Autores principales: Santos, Joana, Barreto, Ângela, Nogueira, João, Daniel-da-Silva, Ana Luísa, Trindade, Tito, Amorim, Mónica J. B., Maria, Vera L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7152858/
https://www.ncbi.nlm.nih.gov/pubmed/32106427
http://dx.doi.org/10.3390/nano10030402
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author Santos, Joana
Barreto, Ângela
Nogueira, João
Daniel-da-Silva, Ana Luísa
Trindade, Tito
Amorim, Mónica J. B.
Maria, Vera L.
author_facet Santos, Joana
Barreto, Ângela
Nogueira, João
Daniel-da-Silva, Ana Luísa
Trindade, Tito
Amorim, Mónica J. B.
Maria, Vera L.
author_sort Santos, Joana
collection PubMed
description Silica nanoparticles (SiO(2)NPs) are one of the most used in commercial products and biomedical tools, however, their environmental effects have not been fully described. Although negative effects of SiO(2)NPs on the behavior of freshwater invertebrates have been reported, the knowledge is limited, especially the effect of nanopowders in terrestrial organisms. Accordingly, the aim of the present study is to understand the effects of SiO(2)NPs on the avoidance behavior of five soil species, whose niche may differ thus contributing to differential harmful SiO(2)NPs effects. Hence, avoidance assays testing SiO(2)NPs concentrations of 0, 10, 100, 250, 500 and 1000 mg/kg were performed with Enchytraeus crypticus, Folsomia candida, Tenebrio molitor, Porcellionides pruinosus and Eisenia fetida. SiO(2)NPs induced different behavioral effects, depending on the invertebrate ecology/habitat, exposure route and physiology. T. molitor, P. pruinosus and F. candida did not avoid contaminated soil; however, E. crypticus and E. fetida significantly avoided SiO(2)NPs spiked soil. Since these terrestrial worms (oligochaetes) live mostly burrowed in the soil, this can provide greater opportunity for SiO(2)NPs’ uptake. On the other hand, the other tested organisms mainly living on the upper part of the soil did not avoid the SiO(2)NPs spiked soil. The avoidance data obtained here also highlight the need for further studies to understand whether (or not) the detected behavioral responses are linked to either neurotransmission processes or sensorial aspects of the biological models.
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spelling pubmed-71528582020-04-20 Effects of Amorphous Silica Nanopowders on the Avoidance Behavior of Five Soil Species—A Screening Study Santos, Joana Barreto, Ângela Nogueira, João Daniel-da-Silva, Ana Luísa Trindade, Tito Amorim, Mónica J. B. Maria, Vera L. Nanomaterials (Basel) Article Silica nanoparticles (SiO(2)NPs) are one of the most used in commercial products and biomedical tools, however, their environmental effects have not been fully described. Although negative effects of SiO(2)NPs on the behavior of freshwater invertebrates have been reported, the knowledge is limited, especially the effect of nanopowders in terrestrial organisms. Accordingly, the aim of the present study is to understand the effects of SiO(2)NPs on the avoidance behavior of five soil species, whose niche may differ thus contributing to differential harmful SiO(2)NPs effects. Hence, avoidance assays testing SiO(2)NPs concentrations of 0, 10, 100, 250, 500 and 1000 mg/kg were performed with Enchytraeus crypticus, Folsomia candida, Tenebrio molitor, Porcellionides pruinosus and Eisenia fetida. SiO(2)NPs induced different behavioral effects, depending on the invertebrate ecology/habitat, exposure route and physiology. T. molitor, P. pruinosus and F. candida did not avoid contaminated soil; however, E. crypticus and E. fetida significantly avoided SiO(2)NPs spiked soil. Since these terrestrial worms (oligochaetes) live mostly burrowed in the soil, this can provide greater opportunity for SiO(2)NPs’ uptake. On the other hand, the other tested organisms mainly living on the upper part of the soil did not avoid the SiO(2)NPs spiked soil. The avoidance data obtained here also highlight the need for further studies to understand whether (or not) the detected behavioral responses are linked to either neurotransmission processes or sensorial aspects of the biological models. MDPI 2020-02-25 /pmc/articles/PMC7152858/ /pubmed/32106427 http://dx.doi.org/10.3390/nano10030402 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Santos, Joana
Barreto, Ângela
Nogueira, João
Daniel-da-Silva, Ana Luísa
Trindade, Tito
Amorim, Mónica J. B.
Maria, Vera L.
Effects of Amorphous Silica Nanopowders on the Avoidance Behavior of Five Soil Species—A Screening Study
title Effects of Amorphous Silica Nanopowders on the Avoidance Behavior of Five Soil Species—A Screening Study
title_full Effects of Amorphous Silica Nanopowders on the Avoidance Behavior of Five Soil Species—A Screening Study
title_fullStr Effects of Amorphous Silica Nanopowders on the Avoidance Behavior of Five Soil Species—A Screening Study
title_full_unstemmed Effects of Amorphous Silica Nanopowders on the Avoidance Behavior of Five Soil Species—A Screening Study
title_short Effects of Amorphous Silica Nanopowders on the Avoidance Behavior of Five Soil Species—A Screening Study
title_sort effects of amorphous silica nanopowders on the avoidance behavior of five soil species—a screening study
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7152858/
https://www.ncbi.nlm.nih.gov/pubmed/32106427
http://dx.doi.org/10.3390/nano10030402
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