Daphnia magna uptake and excretion of luminescence‐labelled polystyrene nanoparticle as visualized by high sensitivity real-time optical imaging

Zhang, Yuhang; Gao, Rong Yao; Wang, Ze Jun; Shao, Qian Qian; Hu, Ya Wen; Jia, Hua Bing; Liu, Xiao Jing; Dong, Fengqin; Fu, Li; Zhang, Jian Ping

doi:10.1016/j.chemosphere.2023.138341

Cited by 6 publications

(5 citation statements)

References 64 publications

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“…The study revealed a bi-phasic uptake pattern: an initial rapid uptake via filter feeding, followed by quick diffusion within the intestine of D. magna, leading to subsequent deposition on the carapace and within the body tissue over several hours. Similarly, a bi-phasic excretion pattern was observed, although UCNPs@PS were still retained even after 48 h of depuration [95]. Palladium-doped PS accumulated in the digestive tract and were deposited on the carapace surface, forming aggregates attached to the chitin that covered the entire body of D. magna [55].…”

Section: Advances In Research On the Bioavailability From Waterborne ...mentioning

confidence: 82%

Progress in Research on the Bioavailability and Toxicity of Nanoplastics to Freshwater Plankton

Slaveykova,

Marelja

2023

Microplastics

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The present review critically examines the advancements in the past 5 years regarding research on the bioavailability and toxicity of the nanoplastics (NPLs) to freshwater plankton. We discuss the recent progress in the understanding of adsorption, absorption, trophic transfer, and biological effects in phyto- and zooplankton induced by NPLs exposure. The influence of plankton on NPLs’ bioavailability via the excretion of biomolecules and formation of eco-corona is also examined. Despite important research developments, there are still considerable knowledge gaps with respect to NPLs’ bioavailability and trophic transfer by plankton as well as a potential adverse effect in natural aquatic systems. As plankton play a critical role in primary production, nutrient cycling, and food web structure, understanding the interactions between NPLs and plankton is essential in assessing the potential implications of NPLs pollution for aquatic ecosystem biodiversity and services.

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Section: Advances In Research On the Bioavailability From Waterborne ...mentioning

confidence: 82%

Progress in Research on the Bioavailability and Toxicity of Nanoplastics to Freshwater Plankton

Slaveykova,

Marelja

2023

Microplastics

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“…Combining of polystyrene-encapsulated UCNPs with our self-developed time-gated imaging (TGI) technique allowed us to observe the distribution of UCNPs in D. magna using noninvasive methods. This approach effectively eliminated the interference from the excitation of stray light and bio-autofluorescence, enabling in situ imaging of PS-NPs without compromising the original morphology of the biological samples [62,63]. To assess the impact of various concentrations of pyriproxyfen on the uptake of PS-NPs by D. magna neonates (<24 h), we selected concentrations of 0, 500, 1000, and 2000 ng/L for pyriproxyfen and 1 and 5 mg/L for PS-NPs.…”

Section: Nanoplastics (Nps) Uptakementioning

confidence: 99%

“…without compromising the original morphology of the biological samples [62,63]. To assess the impact of various concentrations of pyriproxyfen on the uptake of PS-NPs by D. magna neonates (<24 h), we selected concentrations of 0, 500, 1000, and 2000 ng/L for pyriproxyfen and 1 and 5 mg/L for PS-NPs.…”

Section: Acute Toxicity Test Of Pyriproxyfenmentioning

confidence: 99%

Combined Toxicity of Polystyrene Nanoplastics and Pyriproxyfen to Daphnia magna

Jia,

Zhang,

Gao

et al. 2024

Sustainability

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In recent years, the adverse effects of nanoplastics (NPs) and pyriproxyfen on aquatic environments have attracted widespread attention. However, research on their combined exposure to aquatic organisms could be more extensive. This work evaluated the acute and chronic toxic effects of polystyrene NPs (PS-NPs) and pyriproxyfen on Daphnia magna (D. magna) under their combined exposure conditions. The addition of PS-NPs within 24 h reduced the acute toxicity of pyriproxyfen to D. magna, resulting in an increase in the 24-h EC50 values of pyriproxyfen on D. magna from 0.24 mg/L to 0.35, 0.51, and 1.26 mg/L, respectively when 1, 5, and 10 mg/L of PS-NPs were added. Compared with PS-NPs, pyriproxyfen significantly disturbed the growth and reproduction of D. magna in the chronic toxicity test at 21 days. The adverse effects caused by pyriproxyfen were alleviated when PS-NPs and pyriproxyfen were co-exposed. In addition, it was observed that the addition of pyriproxyfen resulted in less PS-NPs uptake by D. magna using a time-gated imaging technique. These findings provide new insight into the combined toxic effects of NPs and pyriproxyfen on the reproduction and growth of D. magna, and it is important to understand the effects of complex pollutants on aquatic systems. Moreover, it has provided an important scientific basis for environmental protection and sustainable development.

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“…For fluorescence-labeled NPs, a confocal microscope can be used to locate and quantify the NPs' uptake by organisms, but the background of autofluorescence cannot be eliminated completely [30]. In previous work [31], the problems of autofluorescence interference, low penetration, and destruction of biological tissue can be effectively solved by the combination of the rare earth up-conversion nanoparticles (UCNPs) and Time-Gated Imaging (TGI) technique [32][33][34]. Real-time in situ imaging and quantitative analysis of NPs were achieved by the TGI technique.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Food on the Uptake and Excretion of Nano-Plastics by Daphnia magna

Liu,

Zhang,

Gao

et al. 2024

Sustainability

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The effects of nano-plastics (NPs) on aquatic organisms have drawn significant attention. Understanding the uptake and excretion of NPs by aquatic organisms can provide clearer insights into their behavior within organisms. And the effect of different food on the processes is unclear. Daphnia magna (D. magna) is considered as a model organism for assessing the ecological risks of NPs. This work observed the uptake and excretion of NPs by D. magna under different food supply conditions. The effects of three different types of foods (Chlorella sp., Euglena gracilis, and yeast powder) on the uptake and excretion of two concentrations of NPs (1 mg/L and 3 mg/L) by the D. magna were compared. A Time-Gated Imaging technique was used to quantify the NPs uptake mass by D. magna. The study results showed the inhibitory effect presented by food on the uptake of NPs by D. magna. The inhibitory ability of different foods varies, with similar levels observed in Chlorella sp. and E. gracilis, while the inhibitory effect of yeast powder was slightly weaker. The facilitating effect was presented by food on the excretion of NPs. The time constant of excretion of NPs by feeding yeast powder was about 4–5 min longer than that of two types of algae. These effects can be attributed to food occupying the intestine tract of D. magna and supplying energy. This work emphasizes the important role of food in evaluating the ecological effects of NPs and provides support for future research on the long-term risks of pollutants to aquatic organisms and environmental sustainability.

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Daphnia magna uptake and excretion of luminescence‐labelled polystyrene nanoparticle as visualized by high sensitivity real-time optical imaging

Cited by 6 publications

References 64 publications

Progress in Research on the Bioavailability and Toxicity of Nanoplastics to Freshwater Plankton

Progress in Research on the Bioavailability and Toxicity of Nanoplastics to Freshwater Plankton

Combined Toxicity of Polystyrene Nanoplastics and Pyriproxyfen to Daphnia magna

The Effects of Food on the Uptake and Excretion of Nano-Plastics by Daphnia magna

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