Effect of silver nanoparticle surface coating on bioaccumulation and reproductive toxicity in earthworms (<i>Eisenia fetida</i>)

Shoults-Wilson, W. Aaron; Reinsch, Brian C.; Tsyusko, Olga V.; Bertsch, Paul M.; Lowry, Gregory V.; Unrine, Jason M.

doi:10.3109/17435390.2010.537382

Cited by 191 publications

(129 citation statements)

References 40 publications

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“…Schlich et al (2013) showed slightly higher bioaccumulation factors (BAF) in earthworms exposed to Ag NPs, although the free Ag ion concentration in the soil was comparable for both Ag forms. Shoults-Wilson et al (2011) found a lower BAF for Ag NP exposure, however, Ag bioaccumulation was not related only to Ag ions released from the nanoparticles. Up-to-date, only one study on the kinetics of Ag NPs in the springtail Folsomia candida is available in the literature (Waalewijn-Kool et al, 2014).…”

Section: Introductionmentioning

confidence: 73%

“…The bioaccumulation of Ag NPs and ionic Ag (from AgNO3) has been evaluated in the earthworm Eisenia fetida after 28 days of exposure (Schlich et al, 2013;Shoults-Wilson et al, 2011). Schlich et al (2013) showed slightly higher bioaccumulation factors (BAF) in earthworms exposed to Ag NPs, although the free Ag ion concentration in the soil was comparable for both Ag forms.…”

Section: Introductionmentioning

confidence: 99%

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Toxicokinetics of Ag in the terrestrial isopod Porcellionides pruinosus exposed to Ag NPs and AgNO3 via soil and food

et al. 2015

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Soares, Amadeu M.V.M.; Loureiro, Susana. 2016. Toxicokinetics of Ag in the terrestrial isopod Porcellionides pruinosus exposed to Ag NPs and AgNO3 via soil and food. Ecotoxicology, 25 (2). 267-278. 10.1007/s10646-015-1585-7 Contact CEH NORA team at noraceh@ceh.ac.ukThe NERC and CEH trademarks and logos ('the Trademarks') are registered trademarks of NERC in the UK and other countries, and may not be used without the prior written consent of the Trademark owner. Isopods were exposed to contaminated Lufa 2.2 soil or alder leaves as food.Uptake and elimination rate constants for soil exposure did not significantly differ between Ag NPs and ionic Ag at 30 and 60 mg Ag/kg. For dietary exposure, the uptake rate constant was up to 5 times higher for Ag NPs than for AgNO3, but this was related to feeding activity and exposure concentrations, while no difference in the elimination rate constants was found. When comparing both routes, dietary exposure resulted in lower Ag uptake rate constants but elimination rate constants did not differ. A fast Ag uptake was observed from both routes and most of the Ag taken up seemed not to be eliminated. Synchrotron X-ray fluorescence showed Ag in the S-cells of the hepatopancreas, thus supporting the observations from the kinetic experiment (i.e. low elimination). In addition, our results show that isopods have an extremely high Ag accumulation capacity, suggesting the presence of an efficient Ag storage compartment.

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Section: Introductionmentioning

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Toxicokinetics of Ag in the terrestrial isopod Porcellionides pruinosus exposed to Ag NPs and AgNO3 via soil and food

et al. 2015

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“…Silver nitrate had greater reproductive toxicity than NPs for E. fetida, although no significant differences were found for effects on growth and survival [85]. Not only did the endpoint analyzed have great influence on the toxicity of NPs and metal salts, but the exposure time did as well.…”

Section: Silvermentioning

confidence: 85%

“…However, extended X-ray absorption fine structure spectroscopy analysis in soil showed that Ag in earthworms exposed to Ag NPs suggests that accumulation was not caused only by the ionic form (i.e., ions dissolved from NPs), but that nondissolved particles contributed to Ag accumulation in the organisms [85].…”

Section: Silvermentioning

confidence: 99%

Metal‐based nanoparticles in soil: Fate, behavior, and effects on soil invertebrates

Tourinho

Gestel²,

Lofts

et al. 2012

Enviro Toxic and Chemistry

401

229

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Abstract-Metal-based nanoparticles (NPs) (e.g., silver, zinc oxide, titanium dioxide, iron oxide) are being widely used in the nanotechnology industry. Because of the release of particles from NP-containing products, it is likely that NPs will enter the soil compartment, especially through land application of sewage sludge derived from wastewater treatment. This review presents an overview of the literature dealing with the fate and effects of metal-based NPs in soil. In the environment, the characteristics of NPs (e.g., size, shape, surface charge) and soil (e.g., pH, ionic strength, organic matter, and clay content) will affect physical and chemical processes, resulting in NP dissolution, agglomeration, and aggregation. The behavior of NPs in soil will control their mobility and their bioavailability to soil organisms. Consequently, exposure characterization in ecotoxicological studies should obtain as much information as possible about dissolution, agglomeration, and aggregation processes. Comparing existing studies is a challenging task, because no standards exist for toxicity tests with NPs. In many cases, the reporting of associated characterization data is sparse, or missing, making it impossible to interpret and explain observed differences in results among studies. Environ. Toxicol. Chem.

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“…The physical properties of these particles have been previously described. 35,41 Briefly, the particles were polydisperse with particle sizes ranging from 30 to 80 nm, and with aggregates of up to 200 nm in diameter based on TEM and DLS measurements (z-average hydrodynamic diameter). The initial Ag(0) content as determined by X-ray absorption spectroscopy was 80−85 wt % with the balance being an oxidized form of Ag, either Ag 2 O or a mixture of Ag 2 O and Ag 2 S. X-ray diffraction (XRD) confirmed the presence of predominantly crystalline Ag(0).…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

Long-Term Transformation and Fate of Manufactured Ag Nanoparticles in a Simulated Large Scale Freshwater Emergent Wetland

Lowry

Espinasse

Badireddy

et al. 2012

Environ. Sci. Technol.

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363

298

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Transformations and long-term fate of engineered nanomaterials must be measured in realistic complex natural systems to accurately assess the risks that they may pose. Here, we determine the long-term behavior of poly(vinylpyrrolidone)-coated silver nanoparticles (AgNPs) in freshwater mesocosms simulating an emergent wetland environment. AgNPs were either applied to the water column or to the terrestrial soils. The distribution of silver among water, solids, and biota, and Ag speciation in soils and sediment was determined 18 months after dosing. Most (70 wt %) of the added Ag resided in the soils and sediments, and largely remained in the compartment in which they were dosed. However, some movement between soil and sediment was observed. Movement of AgNPs from terrestrial soils to sediments was more facile than from sediments to soils, suggesting that erosion and runoff is a potential pathway for AgNPs to enter waterways. The AgNPs in terrestrial soils were transformed to Ag 2 S (∼52%), whereas AgNPs in the subaquatic sediment were present as Ag 2 S (55%) and Ag-sulfhydryl compounds (27%). Despite significant sulfidation of the AgNPs, a fraction of the added Ag resided in the terrestrial plant biomass (∼3 wt % for the terrestrially dosed mesocosm), and relatively high body burdens of Ag (0.5−3.3 μg Ag/g wet weight) were found in mosquito fish and chironomids in both mesocosms. Thus, Ag from the NPs remained bioavailable even after partial sulfidation and when water column total Ag concentrations are low (<0.002 mg/L).

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Effect of silver nanoparticle surface coating on bioaccumulation and reproductive toxicity in earthworms (Eisenia fetida)

Cited by 191 publications

References 40 publications

Toxicokinetics of Ag in the terrestrial isopod Porcellionides pruinosus exposed to Ag NPs and AgNO3 via soil and food

Toxicokinetics of Ag in the terrestrial isopod Porcellionides pruinosus exposed to Ag NPs and AgNO3 via soil and food

Metal‐based nanoparticles in soil: Fate, behavior, and effects on soil invertebrates

Long-Term Transformation and Fate of Manufactured Ag Nanoparticles in a Simulated Large Scale Freshwater Emergent Wetland

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