Emerging investigator series: metal nanoparticles in freshwater: transformation, bioavailability and effects on invertebrates

Wang, Ting; Liu, Wei

doi:10.1039/d2en00052k

Cited by 19 publications

(15 citation statements)

References 249 publications

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“…Generally, NPs of smaller sizes displayed higher toxicity, thus the aggregates/agglomerates formed by the combination of AgNPs with NOM in surface water may play a key role in the toxicity difference (Hu et al, 2018). Additionally, our recent review also highlights the need for research on consideration of NPs toxicity with respect to natural water to better understand their bioavailability and biological effects (Wang and Liu, 2022). This is also the reason why Volvic® mineral water was used in the present study to simulate natural pond water (Auffan et al, 2018;Auffan et al, 2020).…”

Section: Introductionmentioning

confidence: 91%

“…The measured environmental concentration of AgNPs range from 0.3 to 3200 ng/L in surface waters (Zhao et al, 2021). To date, numerous studies reported the effects of NPs on freshwater gastropods (Caixeta et al, 2020;Wang and Liu, 2022). However, only few studies investigated the AgNP effects on L. stagnalis, focusing solely on bioaccumulation and memory formation (Wang and Liu, 2022).…”

Section: Introductionmentioning

confidence: 99%

“…To date, numerous studies reported the effects of NPs on freshwater gastropods (Caixeta et al, 2020;Wang and Liu, 2022). However, only few studies investigated the AgNP effects on L. stagnalis, focusing solely on bioaccumulation and memory formation (Wang and Liu, 2022). For P. corneus, no studies have thus far been reported.…”

Section: Introductionmentioning

confidence: 99%

“…One recent study demonstrated that AgNPs exhibited lower toxicity to Daphnia magna in surface water than in M4 culture medium (Hu et al, 2018). The most substantial difference between those two media is the significant presence of natural organic matter (NOM, mg/L) in the former (Hu et al, 2018;Wang and Liu, 2022), which interacts with NPs and increases the NPs' stability. Generally, NPs of smaller sizes displayed higher toxicity, thus the aggregates/agglomerates formed by the combination of AgNPs with NOM in surface water may play a key role in the toxicity difference (Hu et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Comparative study of the sensitivity of two freshwater gastropods, Lymnaea stagnalis and Planorbarius corneus, to silver nanoparticles: bioaccumulation and toxicity

Wang

Marle

Schirmer

et al. 2022

Environmental Pollution

Self Cite

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Section: Introductionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Comparative study of the sensitivity of two freshwater gastropods, Lymnaea stagnalis and Planorbarius corneus, to silver nanoparticles: bioaccumulation and toxicity

Wang

Marle

Schirmer

et al. 2022

Environmental Pollution

Self Cite

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“…Nanomaterials possess unique physicochemical properties that distinguish them from bulk materials and ions, owing to their small size and large surface area. It remains an open question about whether the effects of nanomaterials on living organisms and human health are unique or like either their bulk materials or ions. − Addressing this crucial question effectively would enable rational design of regulatory guidelines of nanomaterials for safe handling and manufacturing of nanomaterials and accelerating safe applications of nanomaterials and nanotechnology. Notably, toxic effects of heavy metals and their ions have been widely studied over decades.…”

Section: Introductionmentioning

confidence: 99%

Toxic Effects of Silver Ions on Early Developing Zebrafish Embryos Distinguished from Silver Nanoparticles

et al. 2022

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Currently, effects of nanomaterials and their ions, such as silver nanoparticles (Ag NPs) and silver ions (Ag + ), on living organisms are not yet fully understood. One of the vital questions is whether nanomaterials have distinctive effects on living organisms from any other conventional chemicals (e.g., their ions), owing to their unique physicochemical properties. Due to various experimental protocols, studies of this crucial question have been inconclusive, which hinders rational design of effective regulatory guidelines for safely handling NPs. In this study, we chronically exposed early developing zebrafish embryos (cleavage-stage, 2 hours post-fertilization, hpf) to a dilution series of Ag + (0–1.2 μM) in egg water (1 mM NaCl, solubility of Ag + = 0.18 μM) until 120 hpf. We systematically investigated effects of Ag + on developing embryos and compared them with our previous studies of effects of purified Ag NPs on developing embryos. We found the concentration- and time-dependent effects of Ag + on embryonic development, and only half of the embryos developed normally after being exposed to 0.25 μM (27 μg/L) Ag + until 120 hpf. As the Ag + concentration increases, the number of embryos that developed normally decreases, while the number of embryos that became dead increases. The number of abnormally developing embryos increases as the Ag + concentration increases from 0 to 0.3 μM and then decreases as the concentration increases from 0.3 to 1.2 μM because the number of embryos that became dead increases. The concentration-dependent phenotypes were observed, showing fin fold abnormality, tail and spinal cord flexure, and yolk sac edema at low Ag + concentrations (≤0.2 μM) and head and eye abnormalities along with fin fold abnormality, tail and spinal cord flexure, and yolk sac edema at high concentrations (≥0.3 μM). Severities of phenotypes and the number of abnormally developing embryos were far less than those observed in Ag NPs. The results also show concentration-dependent effects on heart rates and hatching rates of developing embryos, attributing to the dose-dependent abnormally developing embryos. In summary, the results show that Ag + and Ag NPs have distinctive toxic effects on early developing embryos, and toxic effects of Ag + are far less severe than those of Ag NPs, which further demonstrates that the toxicity of Ag NPs toward embryonic development is attributed to the NPs themselves and their unique physicochemical properties but not the release of Ag + from the Ag NPs.

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Reproductive performance of freshwater snail, Helisoma duryi under the effect of bulk and nano zinc oxide

Kandeil,

Salem,

Eissa

et al. 2024

J Exp Zool Pt A

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Nanotechnology has been used to apply nanoparticle essential elements to enhance the ability of animals to absorb these elements and consequently improve their reproductive performance. High concentrations of nanoparticles (NPs) can directly harm a range of aquatic life forms, ultimately contributing to a decline in biodiversity. Helisoma duryi snails are a good model for studying the toxicological effects of bulk zinc oxide (ZnO‐BPs) and nano zinc oxide (ZnO‐NPs) on freshwater gastropods. This study aimed to compare the toxic effects of ZnO‐BPs and ZnO‐NPs on H. duryi snails and explore how waterborne and dietary exposure influenced the reproductive performance of this snail. ZnO‐BPs and ZnO‐NPs were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X‐ray powder (XRD). This study revealed that the size of ZnO‐BPs and ZnO‐NPs were 154 nm and 11–31 nm, respectively. The results showed that exposure of adult snails to sub‐lethal concentrations of both ZnO forms (bulk and nano) for 24 h/week for 4 weeks markedly changed their reproductive performance in a concentration‐dependent manner, where fecundity was negatively affected by high concentrations. It was concluded that dietary exposure to the lowest tested concentration of ZnO‐NPs (1 ppm) has a positive effect as the number of eggs and egg masses/snails increased and the incubation period decreased. Also, poly‐vitelline eggs (The formation of twins) were observed. ZnO‐NPs at low concentrations positively affect the reproductive performance of snails, especially after dietary exposure. The results revealed that 1 ppm ZnO‐NPs could be supplementary provided to snails to improve their fertility, reduce the developmental time course, increase hatchability percentage, and produce poly‐vitelline eggs.

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Emerging investigator series: metal nanoparticles in freshwater: transformation, bioavailability and effects on invertebrates

Abstract: Increasing use of metal oxide-based nanoparticles (MNPs) and their release into the environment cast concerns about their environmental impacts. Massive efforts have focused on environmental behaviours and ecotoxicities to figure...

Cited by 19 publications

References 249 publications

Comparative study of the sensitivity of two freshwater gastropods, Lymnaea stagnalis and Planorbarius corneus, to silver nanoparticles: bioaccumulation and toxicity

Comparative study of the sensitivity of two freshwater gastropods, Lymnaea stagnalis and Planorbarius corneus, to silver nanoparticles: bioaccumulation and toxicity

Toxic Effects of Silver Ions on Early Developing Zebrafish Embryos Distinguished from Silver Nanoparticles

Reproductive performance of freshwater snail, Helisoma duryi under the effect of bulk and nano zinc oxide

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