Investigation of acute toxicity, accumulation, and depuration of ZnO nanoparticles in Daphnia magna

Santos-Rasera, Joyce Ribeiro; Monteiro, Regina Teresa Rosim; Carvalho, Hudson Wallace Pereira de

doi:10.1016/j.scitotenv.2022.153307

Cited by 14 publications

(2 citation statements)

References 42 publications

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“…Interestingly, one study likewise demonstrated that released Ag ions and capping agents from the filtrates of Ag ENM solutions had no significant toxic effects on the survival and mobility of Daphnia [11]. In general, our ecotoxicity data for the three toxic ion-releasing materials are in line with literature data [7,51,52].…”

Section: Materials Parameters Related To Toxicity In D Magnasupporting

confidence: 88%

“…There is no definite size limit for particle internalisation reported in the scientific literature, one paper, for example, showed internalisation of prey with a diameter of 50 µm [44]. No difference was found for internalisation of ZnO particles with sizes between 20 and 300 nm [51]. There are some indications that prey shape influences uptake, e.g.…”

Section: Materials Parameters Related To Toxicity In D Magnamentioning

confidence: 99%

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Prioritising nano- and microparticles: identification of physicochemical properties relevant for toxicity to Raphidocelis subcapitata and Daphnia magna

et al. 2022

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Background Advanced/innovative materials are an undefined group of nano- and micro-particles encompassing diverse material compositions, structures and combinations. Due to their unique properties that enable specific functions during applications, there are concerns about unexpected hazards to humans and the environment. In this study, we provide ecotoxicity data for 36 nano- and microparticles of various inorganic species (single constituents and complex compositions; materials releasing toxic ions and others), morphologies (spheroidal, cubic, flaky, elongated/fibrous) and sizes (10 nm–38 µm). By applying Raphidocelis subcapitata algae growth inhibition and Daphnia magna immobilisation tests according to OECD test guidelines 201 and 202, and extensive material characterisation, we aimed to identify indicators of concern. This would allow better predictions of the hazardous properties of these materials in the future. Results The chemical identity (toxic ion-releasing materials vs. other materials) and agglomeration behaviour, which is affected by size (nm vs. µm) and morphology (fibres vs. others), were obvious drivers of ecotoxicity on R. subcapitata. Differences in morphology had an impact on agglomeration behaviour. Fibres formed agglomerates of varying sizes with entrapped and attached algae. Small compact (e.g. spheroidal) particles attached to algae. A high coverage resulted in high ecotoxicity, while less toxic materials attached to a much lesser extent. No agglomeration of algae and particles was observed for particles with a µm size. Small toxic components of large hybrid materials did not affect ecotoxicity. For D. magna, despite uptake of all materials studied into the gut, the sole indication of toxicity was the release of toxic ions. This is in line with previous observations on nanomaterials. Based on the identified criteria, charts were developed to indicate the expected toxicity of advanced/innovative materials toward algae and daphnia. Conclusion Indicators for the toxicities of advanced materials differ for algae and daphnia. Thus, different materials give rise to concerns for the two aquatic organisms. For D. magna, only the toxic ion-releasing materials are relevant, but for R. subcapitata, more complex interactions between particular materials and cells must be considered. Graphical Abstract

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Section: Materials Parameters Related To Toxicity In D Magnasupporting

confidence: 88%

Section: Materials Parameters Related To Toxicity In D Magnamentioning

confidence: 99%

Prioritising nano- and microparticles: identification of physicochemical properties relevant for toxicity to Raphidocelis subcapitata and Daphnia magna

et al. 2022

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New Horizons for Temperature Sensing and Bioimaging Using Er³⁺‐Doped Core@Shell Nanoparticles and Effects of H₂O and D₂O Solvents on Their Spectroscopic Properties

Ryszczyńska,

Soler‐Carracedo,

Ekner‐Grzyb

et al. 2024

Advanced Optical Materials

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Lanthanide‐doped nanoparticles (NPs) exhibit temperature‐dependent luminescence, enabling the design of luminescent nanothermometers for industrial and medical applications. This research demonstrates the temperature‐sensing properties of NaYF4:7.5%Er3+@NaYF4 and NaErF4@NaYF4 NPs, which have a hexagonal shape and average size of 17 nm. Their core@shell structure is confirmed using high‐resolution transmission electron microscopy, and they exhibit intense upconversion (UC) emission under 1532 nm excitation in H2O and D2O colloids. The recorded spectra show Er3+ emission bands with varying intensity ratios depending on the Er3+ concentration, chosen solvent, and temperature. The spectroscopic properties of the studied NPs allow for their excitation and observation of emission within biological windows, which makes them useful for bio‐related applications. The emission of prepared NPs is analyzed as a function of temperature from 298 up to 358/363 K in H2O and D2O. The ratios for thermally‐coupled levels and non‐TCLs and their relative sensitivities are studied. For the high dopant concentration sample in water, the O─H vibrations and blue shift in the absorption spectrum lead to a record relative sensitivity of 2.50% K−1 (at 363 K) for the 2H11/2/4I11/2 ratio. The use of synthesized NPs for bioimaging under 1550 nm excitation is also demonstrated to observe their accumulation in the guts of Daphnia magna.

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Cosmetic nanomaterials in the environment: nano-zinc oxide and zinc-influence on soil microorganisms

Abdelmeged,

Brunetti,

Shetaya

et al. 2023

Appl Nanosci

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This study aimed to investigate the impact of water-containing sunblock products with different residual quantities of bulk ZnO or ZnO nanoparticles (NPs) on soil microorganisms using a bioassay toxicity experiment. The two forms of ZnO were studied at different concentrations ranging from 0 to 10 mg L−1, and leachates obtained from the water disposal during a handwashing simulation experiment were also evaluated, along with raw sunblocks containing both bulk ZnO and ZnO NPs (at 50% and 100%). The key characteristics of each type of ZnO material were analyzed using multiple analytical techniques, such as scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and ultraviolet–visible spectroscopy (UV–Vis). The outcomes revealed that the stability of ZnO nanoparticles was considerably high, with the highest dissolution rate estimated after 36 h as 0.19% of the sunblock's overall ZnO NPs concentration. The different forms of pure ZnO used in the bacterial bioassay demonstrated that the Zn concentration of 10 mg L−1 exhibited the largest inhibition zone area compared to the other treatments. The disc diffusion bioassay findings confirmed that ZnO NPs are active components with greater toxicity than bulk ZnO. These results demonstrated that the antimicrobial effect was exclusively due to the nano-specific influence at higher concentrations. However, additional research is needed to understand better the environmental effects of different types of ZnO particles disposed of by sunblock users. Examining how such substances react in actual environmental conditions is crucial, as they contain various diverse ingredients that may cause varying reactions compared to bulk ZnO particles.

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Investigation of acute toxicity, accumulation, and depuration of ZnO nanoparticles in Daphnia magna

Cited by 14 publications

References 42 publications

Prioritising nano- and microparticles: identification of physicochemical properties relevant for toxicity to Raphidocelis subcapitata and Daphnia magna

Prioritising nano- and microparticles: identification of physicochemical properties relevant for toxicity to Raphidocelis subcapitata and Daphnia magna

New Horizons for Temperature Sensing and Bioimaging Using Er³⁺‐Doped Core@Shell Nanoparticles and Effects of H₂O and D₂O Solvents on Their Spectroscopic Properties

Cosmetic nanomaterials in the environment: nano-zinc oxide and zinc-influence on soil microorganisms

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Investigation of acute toxicity, accumulation, and depuration of ZnO nanoparticles in Daphnia magna

Cited by 14 publications

References 42 publications

Prioritising nano- and microparticles: identification of physicochemical properties relevant for toxicity to Raphidocelis subcapitata and Daphnia magna

Prioritising nano- and microparticles: identification of physicochemical properties relevant for toxicity to Raphidocelis subcapitata and Daphnia magna

New Horizons for Temperature Sensing and Bioimaging Using Er3+‐Doped Core@Shell Nanoparticles and Effects of H2O and D2O Solvents on Their Spectroscopic Properties

Cosmetic nanomaterials in the environment: nano-zinc oxide and zinc-influence on soil microorganisms

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Product

Resources

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New Horizons for Temperature Sensing and Bioimaging Using Er³⁺‐Doped Core@Shell Nanoparticles and Effects of H₂O and D₂O Solvents on Their Spectroscopic Properties