Synergistic toxic effect of nano-Al2O3 and As(V) on Ceriodaphnia dubia

Wang, Demin; Hu, Jian; Forthaus, Brett E.; Wang, Jianmin

doi:10.1016/j.envpol.2011.04.019

Cited by 44 publications

(26 citation statements)

References 40 publications

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“…Finally, the ingestion of NPs by the feeding apparatus has been commonly considered as the main route of NP uptake in daphnia [34]. S3) and the literature [22] confirmed that ingestion is the main route of NP uptake by C. dubia. The hydrodynamic diameters of both nano-Fe 2 O 3 (m) and nano-Al 2 O 3 in the culture medium increased significantly compared with their advertised particle size because of aggregation, but they were still within the ingestible particle range.…”

Section: Discussionmentioning

confidence: 91%

Quantifying the effect of nanoparticles on As(V) ecotoxicity exemplified by nano‐Fe₂O₃ (magnetic) and nano‐Al₂O₃

Wang

Forthaus

et al. 2012

Enviro Toxic and Chemistry

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Nano-Fe(2) O(3) (magnetic) and nano-Al(2) O(3) are increasingly used in biomedical fields for cellular labeling and drug delivery, and in the industry as catalysts. However, they may also serve as carriers of toxic contaminants and negatively impact the environment and human health. In the present study, Ceriodaphnia dubia was used to assess the toxicity of these nanoparticles (NPs) with and without the presence of background arsenic(V) (As[V]). The results showed that although these NPs alone did not exhibit significant toxicity in the experimental concentration range, they could significantly enhance the toxicity of As(V). The accumulation of As(V) on nano-Fe(2) O(3) (m) and nano-Al(2) O(3) , as well as the uptake of these NPs in C. dubia, were verified. An inverse relationship between the median lethal concentration (LC50) of the soluble As(V) and the accumulation of NPs in C. dubia was developed. Therefore, the uptake of As(V)-loaded NPs in C. dubia played a key role in enhancing As(V) toxicity.

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Section: Discussionmentioning

confidence: 91%

Quantifying the effect of nanoparticles on As(V) ecotoxicity exemplified by nano‐Fe₂O₃ (magnetic) and nano‐Al₂O₃

Wang

Forthaus

et al. 2012

Enviro Toxic and Chemistry

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“…TiO 2 NPs also enhanced the toxicity of copper occurring naturally in water to Daphnia magna (Fan et al, 2011). In addition, nanoparticles enhanced the accumulation of arsenate (Wang et al, 2011a(Wang et al, , 2011b and copper (Fan et al, 2011) in some model organisms. Thus, the coexistence of pollutants and metal oxide nanoparticles significantly changed the toxicity of the pollutants.…”

Section: Introductionmentioning

confidence: 92%

“…The results showed that the presence of Al 2 O 3 NPs (Wang et al, 2011a) or TiO 2 NPs (Wang et al, 2011b) significantly increased the toxic effect of As(V) on Ceriodaphnia dubia. TiO 2 NPs also enhanced the toxicity of copper occurring naturally in water to Daphnia magna (Fan et al, 2011).…”

Section: Introductionmentioning

confidence: 95%

Combined toxicity of ferroferric oxide nanoparticles and arsenic to the ciliated protozoa Tetrahymena Pyriformis

Zou

et al. 2013

Aquatic Toxicology

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“…Some studies have reported the enhancement of bioaccumulation or toxicity to some aquatic organisms of heavy metals when they coexist with NPs [6][7][8][9]. Some studies have reported the enhancement of bioaccumulation or toxicity to some aquatic organisms of heavy metals when they coexist with NPs [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Mitigation of Cu(II) phytotoxicity to rice (Oryza sativa) in the presence of TiO₂ and CeO₂ nanoparticles combined with humic acid

Wang

Peng

Fang

et al. 2015

Enviro Toxic and Chemistry

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Engineered nanoparticles (NPs) and natural organic matter (NOM) in the environment may interact with background contaminants such as heavy metals and modify their bioavailability and toxicity. In the present study, the combined influences of 2 common NPs (TiO2 and CeO2 ) and humic acid (HA; as a model NOM) on Cu(II) phytotoxicity to rice were investigated by a 3-d root elongation assay performed on filter paper media. The results showed that the adsorption coefficients of bare TiO2 and CeO2 NPs (100 mg/L) toward Cu(2+) are 2.65 and 4.37, respectively, at an initial concentration of 10 mg/L, suggesting that Cu(II) could be strongly adsorbed by NPs, whereas HA-coated TiO2 and CeO2 NPs further enhanced the adsorption coefficients to 4.37 and 6.85, respectively. In addition, compared with Cu-alone treatment, the addition of bare TiO2 and CeO2 NPs (1000 mg/L) increased the length of rice root by 32.5% and 39.0%, respectively; however, the presence of HA-coated TiO2 and CeO2 NPs increased the root length by 90.2% and 100.1%, respectively, which indicated that the mitigation effect of HA-coated NPs on Cu(II) phytotoxicity was more visible than that of bare NPs. The results demonstrated that coexistence of NPs and HA significantly alleviated Cu(II) phytotoxicity as a result of a decrease in bioavailable soluble Cu(II) concentration, which contributes to an understanding of the potential behavior of NPs in the environment.

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Synergistic toxic effect of nano-Al2O3 and As(V) on Ceriodaphnia dubia

Cited by 44 publications

References 40 publications

Quantifying the effect of nanoparticles on As(V) ecotoxicity exemplified by nano‐Fe₂O₃ (magnetic) and nano‐Al₂O₃

Quantifying the effect of nanoparticles on As(V) ecotoxicity exemplified by nano‐Fe₂O₃ (magnetic) and nano‐Al₂O₃

Combined toxicity of ferroferric oxide nanoparticles and arsenic to the ciliated protozoa Tetrahymena Pyriformis

Mitigation of Cu(II) phytotoxicity to rice (Oryza sativa) in the presence of TiO₂ and CeO₂ nanoparticles combined with humic acid

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Synergistic toxic effect of nano-Al2O3 and As(V) on Ceriodaphnia dubia

Cited by 44 publications

References 40 publications

Quantifying the effect of nanoparticles on As(V) ecotoxicity exemplified by nano‐Fe2O3 (magnetic) and nano‐Al2O3

Quantifying the effect of nanoparticles on As(V) ecotoxicity exemplified by nano‐Fe2O3 (magnetic) and nano‐Al2O3

Combined toxicity of ferroferric oxide nanoparticles and arsenic to the ciliated protozoa Tetrahymena Pyriformis

Mitigation of Cu(II) phytotoxicity to rice (Oryza sativa) in the presence of TiO2 and CeO2 nanoparticles combined with humic acid

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Quantifying the effect of nanoparticles on As(V) ecotoxicity exemplified by nano‐Fe₂O₃ (magnetic) and nano‐Al₂O₃

Quantifying the effect of nanoparticles on As(V) ecotoxicity exemplified by nano‐Fe₂O₃ (magnetic) and nano‐Al₂O₃

Mitigation of Cu(II) phytotoxicity to rice (Oryza sativa) in the presence of TiO₂ and CeO₂ nanoparticles combined with humic acid