Acute toxicity of nanoplastics on Daphnia and Gammarus neonates: Effects of surface charge, heteroaggregation, and water properties

Meng, Zijiao; Recoura-Massaquant, Rémi; Chaumot, Arnaud; Stoll, Serge; Liu, Wei

doi:10.1016/j.scitotenv.2022.158763

Cited by 13 publications

(5 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In contact with particulate pollutants, DOM leads to ecocorona formation (e.g., [39,42]) altering the particles' surface characteristics [25,40,41] and changing interactions with tissues and cells [5,6]. Changes in physico-chemical properties also lead to altered colloidal interactions [41] and altered aggregation in the test media [74,77,78]. Particle aggregation in turn affects the particles' transport behavior, can lead to increased sinking velocities and consequently lower the availability of particulate pollutants in the water column [42,[78][79][80].…”

Section: Discussionmentioning

confidence: 99%

“…Particle aggregation in turn affects the particles' transport behavior, can lead to increased sinking velocities and consequently lower the availability of particulate pollutants in the water column [42,[78][79][80]. In consequence, particle aggregation can alter MNP toxicity, for instance by altering uptake rates [49,77,81]. Furthermore, DOM attached to the particles may add nutritional value to the particles and thus partly reduce food dilution effects [82].…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of dissolved organic matter on the toxicity of micro- and nanoplastic particles to Daphnia - a meta-analysis

Salomon,

Grubmüller,

Kropf

et al. 2024

Micropl.&Nanopl.

View full text Add to dashboard Cite

Effects of micro- and nanoplastic particles (MNP) on organisms have been increasingly reported in recent years, with a large number of studies conducted on water fleas of the genus Daphnia. Most of the available studies used pristine particles that have not been exposed to the environment or to organic substances. In natural environments, however, organic substances like dissolved organic matter (DOM) attach to the MNP, forming an ecocorona on the particles’ surface. How the formation of an ecocorona influences MNP toxicity is still uncertain. While some studies suggest that DOM can mitigate the negative effects of MNP on organisms, other studies did not find such associations. In addition, it is unclear whether the DOM attached to the particles’ surface attenuates the effects of MNP directly or whether co-exposure with DOM solved in the medium attenuates MNP toxicity indirectly, for instance by increasing Daphnia‘s resilience to stressors in general. To draw more solid conclusions about the direction and size of the mediating effect of DOM on MNP-associated immobilization in Daphnia spp., we synthesized evidence from the published literature and compiled 305 data points from 13 independent studies. The results of our meta-analysis show that the toxic effects of MNP are likely reduced in the presence of certain types of DOM in the exposure media. We found similar mediating effects when MNP were incubated in media containing DOM before the exposure experiments, although to a lesser extent. Future studies designed to disentangle the effects of DOM attached to the MNP from the general effects of DOM in the exposure medium will contribute to a deeper mechanistic understanding of MNP toxicity in nature and enhance the reliability of MNP risk assessment. Graphical Abstract

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Effects of dissolved organic matter on the toxicity of micro- and nanoplastic particles to Daphnia - a meta-analysis

Salomon,

Grubmüller,

Kropf

et al. 2024

Micropl.&Nanopl.

View full text Add to dashboard Cite

show abstract

“…In contact with particulate pollutants, DOM leads to ecocorona formation (e.g., Elagami et al, 2022;Rummel et al, 2017) altering the particles' surface characteristics (Natarajan et al, 2021;Shi et al, 2023;Witzmann et al, 2022) and changing interactions with tissues and cells (Ramsperger et al, 2020). Changes in physico-chemical properties also lead to altered colloidal interactions (Witzmann et al, 2022) and altered aggregation in the test media (Aiken et al, 2011;Meng et al, 2023;M. Yan et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

“…Particle aggregation in turn affects the particles' transport behavior, can lead to increased sinking velocities and consequently lower the availability of particulate pollutants in the water column (Elagami et al, 2022;Karakaş et al, 2009;Petosa et al, 2010;. In addition, particle aggregation itself can alter MNP toxicity (Albanese & Chan, 2011;Meng et al, 2023;Wu et al, 2019). Furthermore, DOM attached to the particles may add nutritional value to the particles and thus partly reduce food dilution effects (Arruda et al, 1983).…”

Section: Discussionmentioning

confidence: 99%

Effects of dissolved organic matter and ecocorona formation on the toxicity of micro- and nanoplastic particles to Daphnia - A meta-analysis

Salomon,

Grubmüller,

Kropf

et al. 2023

Preprint

View full text Add to dashboard Cite

Significant quantities of micro- and nanoplastic particles (MNP) end up in theenvironment, either due to larger plastic debris breaking down or by entering directlyas MNPs. Effects of MNPs on organisms have been increasingly reported in recentyears, with a large number of studies conducted on water fleas of the genus Daphnia.Most of the available studies used pristine particles that have not been exposed to theenvironment or to organic substances. In natural environments, however, proteins,organic substances and, if the particles are large enough, bacteria attach to MNP,forming an ecocorona or biofilm on the particles’ surface. How the formation of anecocorona influences MNP toxicity is still uncertain. While some studies suggest thatecocorona formation can mitigate the negative effects of MNP on organisms, otherstudies did not find such associations. In addition, it is unclear whether the ecocoronaitself is attenuating the effects of MNP or whether dissolved organic matter (DOM)affects toxicity indirectly such as by increasing Daphnia‘s resilience to stressors ingeneral. To draw more solid conclusions about the direction and size of the mediatingeffect of DOM and ecocorona formation on MNP-associated immobilization in Daphniaspp., we synthesized evidence from the published literature and compiled 305 datapoints from 13 independent studies. The results of our meta-analysis show that thetoxic effects of MNP are likely reduced in the presence of certain types of DOM. Weobserved similar mediating effects when MNP were incubated in media containingDOM before the exposure experiments, although to a lesser extent. Future studiesdesigned to disentangle the effects of the ecocorona itself from the general effects ofDOM will contribute to a deeper mechanistic understanding of MNP toxicity in natureand enhance the reliability of MNP risk assessment.

show abstract

“…11,12 In our previous work, the surface charge and aggregation behavior were found to be the most influential toxicity factors of PS-NPLs for freshwater crustacean species D. magna and G. fossarum, respectively. 21 However, the possible surface properties and heteroaggregation behavior of PS-NPLs under realistic conditions, their correlation with the overall toxicity and their functional mechanism on freshwater plankton remain an open question.…”

Section: Introductionmentioning

confidence: 99%

Transformations, interactions, and acute biological responses of nanoplastics on mixotrophic microalgae Poterioochromonas malhamensis

Meng¹,

Stoll²,

Liu³

2023

Environ. Sci.: Nano

Self Cite

View full text Add to dashboard Cite

show abstract

Acute toxicity of nanoplastics on Daphnia and Gammarus neonates: Effects of surface charge, heteroaggregation, and water properties

Cited by 13 publications

References 63 publications

Effects of dissolved organic matter on the toxicity of micro- and nanoplastic particles to Daphnia - a meta-analysis

Effects of dissolved organic matter on the toxicity of micro- and nanoplastic particles to Daphnia - a meta-analysis

Effects of dissolved organic matter and ecocorona formation on the toxicity of micro- and nanoplastic particles to Daphnia - A meta-analysis

Transformations, interactions, and acute biological responses of nanoplastics on mixotrophic microalgae Poterioochromonas malhamensis

Contact Info

Product

Resources

About