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Effects of soil and dietary exposures to Ag nanoparticles and AgNO₃ in the terrestrial isopod Porcellionides pruinosus.
Environ Pollut. 2015 Oct; 205:170-7.EP

Abstract

The effects of Ag-NPs and AgNO3 on the isopod Porcellionides pruinosus were determined upon soil and dietary exposures. Isopods avoided Ag in soil, with EC50 values of ∼16.0 and 14.0 mg Ag/kg for Ag-NPs and AgNO3, respectively. Feeding inhibition tests in soil showed EC50s for effects on consumption ratio of 127 and 56.7 mg Ag/kg, respectively. Although similar EC50s for effects on biomass were observed for nanoparticulate and ionic Ag (114 and 120 mg Ag/kg dry soil, respectively), at higher concentrations greater biomass loss was found for AgNO3. Upon dietary exposure, AgNO3 was more toxic, with EC50 for effects on biomass change being >1500 and 233 mg Ag/kg for Ag-NPs and AgNO3, respectively. The difference in toxicity between Ag-NPs and AgNO3 could not be explained from Ag body concentrations. This suggests that the relation between toxicity and bioavailability of Ag-NPs differs from that of ionic Ag in soils.

Authors+Show Affiliations

Department of Biology and the Centre for Environmental and Marine Studies, University of Aveiro, Aveiro, Portugal. Electronic address: paulatourinho@ua.pt.Department of Ecological Science, Faculty of Earth and Life Sciences, VU University, Amsterdam, The Netherlands.Department of Materials, Oxford University, Begbroke Science Park, Begbroke Hill, Yarnton, Oxford, OX5 1PF, United Kingdom.Department of Biology and the Centre for Environmental and Marine Studies, University of Aveiro, Aveiro, Portugal.Department of Biology and the Centre for Environmental and Marine Studies, University of Aveiro, Aveiro, Portugal.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

26071943

Citation

Tourinho, Paula S., et al. "Effects of Soil and Dietary Exposures to Ag Nanoparticles and AgNO₃ in the Terrestrial Isopod Porcellionides Pruinosus." Environmental Pollution (Barking, Essex : 1987), vol. 205, 2015, pp. 170-7.
Tourinho PS, van Gestel CA, Jurkschat K, et al. Effects of soil and dietary exposures to Ag nanoparticles and AgNO₃ in the terrestrial isopod Porcellionides pruinosus. Environ Pollut. 2015;205:170-7.
Tourinho, P. S., van Gestel, C. A., Jurkschat, K., Soares, A. M., & Loureiro, S. (2015). Effects of soil and dietary exposures to Ag nanoparticles and AgNO₃ in the terrestrial isopod Porcellionides pruinosus. Environmental Pollution (Barking, Essex : 1987), 205, 170-7. https://doi.org/10.1016/j.envpol.2015.05.044
Tourinho PS, et al. Effects of Soil and Dietary Exposures to Ag Nanoparticles and AgNO₃ in the Terrestrial Isopod Porcellionides Pruinosus. Environ Pollut. 2015;205:170-7. PubMed PMID: 26071943.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of soil and dietary exposures to Ag nanoparticles and AgNO₃ in the terrestrial isopod Porcellionides pruinosus. AU - Tourinho,Paula S, AU - van Gestel,Cornelis A M, AU - Jurkschat,Kerstin, AU - Soares,Amadeu M V M, AU - Loureiro,Susana, Y1 - 2015/06/10/ PY - 2015/03/30/received PY - 2015/05/28/revised PY - 2015/05/29/accepted PY - 2015/6/15/entrez PY - 2015/6/15/pubmed PY - 2016/3/22/medline KW - Bioavailability KW - Routes of exposure KW - Silver nanoparticles KW - Toxicity SP - 170 EP - 7 JF - Environmental pollution (Barking, Essex : 1987) JO - Environ Pollut VL - 205 N2 - The effects of Ag-NPs and AgNO3 on the isopod Porcellionides pruinosus were determined upon soil and dietary exposures. Isopods avoided Ag in soil, with EC50 values of ∼16.0 and 14.0 mg Ag/kg for Ag-NPs and AgNO3, respectively. Feeding inhibition tests in soil showed EC50s for effects on consumption ratio of 127 and 56.7 mg Ag/kg, respectively. Although similar EC50s for effects on biomass were observed for nanoparticulate and ionic Ag (114 and 120 mg Ag/kg dry soil, respectively), at higher concentrations greater biomass loss was found for AgNO3. Upon dietary exposure, AgNO3 was more toxic, with EC50 for effects on biomass change being >1500 and 233 mg Ag/kg for Ag-NPs and AgNO3, respectively. The difference in toxicity between Ag-NPs and AgNO3 could not be explained from Ag body concentrations. This suggests that the relation between toxicity and bioavailability of Ag-NPs differs from that of ionic Ag in soils. SN - 1873-6424 UR - https://www.unboundmedicine.com/medline/citation/26071943/Effects_of_soil_and_dietary_exposures_to_Ag_nanoparticles_and_AgNO₃_in_the_terrestrial_isopod_Porcellionides_pruinosus_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0269-7491(15)00278-X DB - PRIME DP - Unbound Medicine ER -