The coating makes the difference: Acute effects of iron oxide nanoparticles on Daphnia magna

Baumann, Jonas; Köser, Jan; Arndt, Darius; Filser, Juliane

doi:10.1016/j.scitotenv.2014.03.023

Cited by 88 publications

(52 citation statements)

References 68 publications

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“…In most cases, it caused reduction or even inhibition of molting (Baumann et al, 2014a;Bozich et al, 2014;Dabrunz et al, 2011) which was not the case in the present study indicating low levels of attachment of the AgNPs to the exoskeleton here.…”

contrasting

confidence: 56%

“…Attachment to the carapax has been reported for several NPs with different core materials and coatings (Asghari et al, 2012;Baumann et al, 2014a;Bozich et al, 2014;Dabrunz et al, 2011;Zhao and Wang, 2012). In most cases, it caused reduction or even inhibition of molting (Baumann et al, 2014a;Bozich et al, 2014;Dabrunz et al, 2011) which was not the case in the present study indicating low levels of attachment of the AgNPs to the exoskeleton here.…”

contrasting

confidence: 47%

“…The presence/absence of certain chemical groups in the stabilizer or the stabilizer identity has been shown to cause differences in toxicity also in other studies (Baumann et al, 2014a;Kim et al, 2013;Moyano and Rotello, 2011). However, it is also possible that ingested citAgNPs were more toxic than detAgNPs due to their higher dissolution rates.…”

mentioning

confidence: 87%

“…5 No general trends were reported for other properties such as hydrophilicity of the stabilizers or presence/absence of certain reactive groups in the coatings (Kim et al, 2013;Levard et al, 2012). In addition, the stabilizer itself changed the toxicity as well as the mode of action of the investigated nanoparticles in other experimental studies (Baumann et al, 2014a;Bozich et al, 2014;Dominguez et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Behavior and chronic toxicity of two differently stabilized silver nanoparticles to Daphnia magna

et al. 2016

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confidence: 56%

contrasting

confidence: 47%

mentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

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Behavior and chronic toxicity of two differently stabilized silver nanoparticles to Daphnia magna

et al. 2016

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“…In one study Baumann et al [90] functionalised the iron NPs with four different coatings: ascorbate (ASC-IONP), citrate (CIT-IONP), dextran (DEX-IONP), and polyvinylpyrrolidone (PVP-IONP) and evaluated their acute toxicity towards neonates of the water flea Daphnia magna . The highest immobilizing effect was recorded for ASC-IONP and DEX-IONP.…”

Section: Environmental Implications Of Iron Nanoparticlesmentioning

confidence: 99%

Green Synthesis of Iron Nanoparticles and Their Environmental Applications and Implications

2016

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Recent advances in nanoscience and nanotechnology have also led to the development of novel nanomaterials, which ultimately increase potential health and environmental hazards. Interest in developing environmentally benign procedures for the synthesis of metallic nanoparticles has been increased. The purpose is to minimize the negative impacts of synthetic procedures, their accompanying chemicals and derivative compounds. The exploitation of different biomaterials for the synthesis of nanoparticles is considered a valuable approach in green nanotechnology. Biological resources such as bacteria, algae fungi and plants have been used for the production of low-cost, energy-efficient, and nontoxic environmental friendly metallic nanoparticles. This review provides an overview of various reports of green synthesised zero valent metallic iron (ZVMI) and iron oxide (Fe2O3/Fe3O4) nanoparticles (NPs) and highlights their substantial applications in environmental pollution control. This review also summarizes the ecotoxicological impacts of green synthesised iron nanoparticles opposed to non-green synthesised iron nanoparticles.

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Response of bacteria and meiofauna to iron oxide colloids in sediments of freshwater microcosms

Höss¹,

Frank-Fahle

Lueders

et al. 2015

Enviro Toxic and Chemistry

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The use of colloidal iron oxide (FeOx) in the bioremediation of groundwater contamination implies its increasing release into the environment and requires an assessment of its ecotoxicological risk. Therefore, microcosm experiments were carried out to investigate the impact of ferrihydrite colloids on the bacterial and meiofaunal communities of pristine freshwater sediments. The effects of ferrihydrite colloids were compared with those of ferrihydrite macroaggregates to discriminate between colloid-specific and general FeOx impacts. The influence of ferrihydrite colloids on the toxicity of sediment-bound fluoranthene was also considered. At high concentrations (496 mg Fe kg(-1) sediment dry wt), ferrihydrite colloids had a significant, but transient impact on bacterial and meiofaunal communities. Although bacterial community composition specifically responded to ferrihydrite colloids, a more general FeOx effect was observed for meiofauna. Bacterial activity responded most sensitively (already at 55 mg Fe kg(-1) dry wt) without the potential of recovery. Ferrihydrite colloids did not influence the toxicity of sediment-bound fluoranthene. Significant correlations between bacterial activity and meiofaunal abundances were indicative of trophic interactions between bacteria and meiofauna and therefore of the contribution of indirect food web effects to the observed impacts. The results suggest that the application of ferrihydrite colloids for remediation purposes in the field poses no risk for benthic communities, given that, with the exception of generic bacterial activity, any negative effects on communities were reversible.

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The coating makes the difference: Acute effects of iron oxide nanoparticles on Daphnia magna

Cited by 88 publications

References 68 publications

Behavior and chronic toxicity of two differently stabilized silver nanoparticles to Daphnia magna

Behavior and chronic toxicity of two differently stabilized silver nanoparticles to Daphnia magna

Green Synthesis of Iron Nanoparticles and Their Environmental Applications and Implications

Response of bacteria and meiofauna to iron oxide colloids in sediments of freshwater microcosms

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