Acute toxicity of titanium dioxide microparticles in <scp><i>Artemia</i></scp> sp. nauplii instar I and II

Pinheiro, Sergimar Kennedy de Paiva; Lima, Ana Kamila Medeiros; Miguel, Thaiz Batista Azevedo Rangel; Pireda, Saulo; Fechine, Pierre Basílio Almeida; Filho, A. G. Souza; Miguel, Emílio de Castro

doi:10.1002/jemt.24312

Cited by 4 publications

(2 citation statements)

References 48 publications

(83 reference statements)

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“…In newly hatched nauplii (Instar I), the inability to consume food or ingest nanoparticles is due to underdeveloped mouths and anuses. 116 Nonetheless, NPs can be adsorbed on their body surface and gills, 117 negatively affecting metabolism and development. The transformation of Artemia nauplii Instar I into Instar II depends on temperature.…”

Section: Resultsmentioning

confidence: 99%

Real-time assessment of the impacts of polystyrene and silver nanoparticles on the hatching process and early-stage development of Artemia using a microfluidic platform

Dey,

Bradley,

Boymelgreen

2024

Environ. Sci.: Nano

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Section: Resultsmentioning

confidence: 99%

Real-time assessment of the impacts of polystyrene and silver nanoparticles on the hatching process and early-stage development of Artemia using a microfluidic platform

Dey,

Bradley,

Boymelgreen

2024

Environ. Sci.: Nano

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“…As the mouth and anus are not yet developed, newly hatched nauplii (Instar I) are unable to consume food -or ingest nanoparticles-and depend on the yolk sac for nutrition 123 . Nonetheless, due to the high adsorption capabilities of NPs, they may cover the body surface and gills of nauplii 83 , negatively impacting metabolism and development.…”

Section: Bioconcentration Of Ps and Ag Nanoparticles Acute Toxicity A...mentioning

confidence: 99%

Real-time assessment of the impacts of polystyrene and silver nanoparticles on hatching process and early-stage development ofArtemiausing a microfluidic platform

Dey,

Bradley,

Boymelgreen

2023

Preprint

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The development of real-time in-situ monitoring techniques is key to advancing a mechanistic understanding of the impacts of marine pollution, which is challenging to acquire through traditional end-point toxicity testing. We investigated the impacts of different nanopollutants on the hatching process and early-stage development of marine organisms, a vulnerable life stage, by observing oxygen consumption in real-time and morphological changes at regular intervals using a microfluidic platform. Here, two common and distinct nanoparticle (NP) types - polystyrene (PS) nanoplastic and silver (Ag) nanometal, were examined to assess and compare impacts on the hatching process and nauplius stage (first larval stage) ofArtemia, a widely used zooplankton model in ecotoxicological studies. The study was conducted over a wide range of doses that are relevant to different environmental conditions, ranging from 0-1 mg/L, over a period of 24 hours. The hatching process ofArtemiais comprised of four distinct stages which can be differentiated by metabolism and morphology: hydration, differentiation, emergence, and hatching. During hatching, NP exposure altered the time needed for the resumption of dormantArtemiacysts (hydration duration) at the lowest dose, dramatically prolonged the differentiation stage, and slowed embryo emergence from the cysts. The remaining time for the hatching stage during the experimental timeframe was also shortened. Overall, the presence of NPs led to increased oxygen consumption in multiple stages of the hatching process. Hatchability increased significantly with NP concentration although mortality showed an inverse pattern. This may be attributed to the increased aggregation of NPs in saltwater with increasing concentration which limits bioavailability during hatching but may be more readily consumed post-hatch. Ag NPs had a greater effect on hatching and mortality in comparison to PS NPs. A significant impact of NPs on swimming speed was observed, with a decrease observed in the presence of PS NPs and an increase observed in the presence of Ag NPs.

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Acute toxicity of nanoscale zeolitic imidazolate framework 8 (ZIF-8) to saltwater planktonic species Artemia salina and Nannochloropsis oculata

Johari,

Tayemeh,

Veisi

et al. 2023

Environ Sci Pollut Res

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Acute toxicity of titanium dioxide microparticles in Artemia sp. nauplii instar I and II

Cited by 4 publications

References 48 publications

Real-time assessment of the impacts of polystyrene and silver nanoparticles on the hatching process and early-stage development of Artemia using a microfluidic platform

Real-time assessment of the impacts of polystyrene and silver nanoparticles on the hatching process and early-stage development of Artemia using a microfluidic platform

Real-time assessment of the impacts of polystyrene and silver nanoparticles on hatching process and early-stage development ofArtemiausing a microfluidic platform

Acute toxicity of nanoscale zeolitic imidazolate framework 8 (ZIF-8) to saltwater planktonic species Artemia salina and Nannochloropsis oculata

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