Chronic toxicity in Ceriodaphnia dubia induced by graphene oxide

Souza, José Paulo de; Venturini, Francine Perri; Santos, Flávio Augusto Portela; Zucolotto, Valtencir

doi:10.1016/j.chemosphere.2017.10.018

Cited by 61 publications

(28 citation statements)

References 30 publications

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“…However, some evidences of negative effects in different invertebrate Environmental Science: Nano Paper and vertebrate organisms 29 suggest a possible ecotoxicological impact of GBMs. In the aquatic environment, a negative impact has been observed for microalgae, 30,31 the crustaceans Daphnia magna, 32 Ceriodaphnia dubia 33 and Amphibalanus amphitrite, 11 polychaete, 9 and protozoa, 34 as well as zebrafish embryos 35,36 and adults. 37 In general, carbon-based nanomaterials, including GBMs, are slightly toxic to most aquatic organisms and their half-maximal effect (EC 50 ) ranges between 10 and 100 μg mL −1 .…”

Section: Discussionmentioning

confidence: 99%

Ecotoxicological impact of graphene oxide: toxic effects on the model organism Artemia franciscana

Cavion

Fusco

Sosa

et al. 2020

Environ. Sci.: Nano

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Section: Discussionmentioning

confidence: 99%

Ecotoxicological impact of graphene oxide: toxic effects on the model organism Artemia franciscana

Cavion

Fusco

Sosa

et al. 2020

Environ. Sci.: Nano

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“…pseudonana for 72 hours indicate that algal cells were directly clumped and attached to NHs. GO sheets formed aggregation and attachment to the algae and exhibited significant catalytic effects, through the interaction of nanocomposites with algal cells, disrupting the algal cell wall by oxidative degradation of lipids resulting in cell damage . A recent study by Zhao et al indicated that there were direct physical damages to algal cells with sharp edges and corners induced by GO, although GO did not penetrate into algal cells because of the protection of cell walls.…”

Section: Resultsmentioning

confidence: 99%

Toxicity of ZnO/TiO₂‐conjugated carbon‐based nanohybrids on the coastal marine alga Thalassiosira pseudonana

Baek

Joo

et al. 2019

Environmental Toxicology

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Increasing consumption of metal-oxide nanoparticles (NPs) and carbon-based nanomaterials has caused significant concern about their potential hazards in aquatic environments. The release of NPs into aquatic environments could result in adsorption of NPs on microorganisms. While metal-oxide NP-conjugated carbon-based nanohybrids (NHs) may exhibit enhanced toxicity toward microorganisms due to their large surface area and the generation of reactive oxygen species (ROS), there is a lack of information regarding the ecotoxicological effects of NHs on marine diatom algae, which are an indicator of marine pollution. Moreover, there is scant information on toxicity mechanisms of NHs on aquatic organisms. In this study, four NHs (ie, ZnOconjugated graphene oxide [GO], ZnO-conjugated carbon nanotubes [CNTs], TiO 2conjugated GO, and TiO 2 -conjugated CNT) that were synthesized by a hydrothermal method were investigated for their toxicity effects on a Thalassiosira pseudonana marine diatom. The in vitro cellular viability and ROS formation employed at the concentration ranges of 50 and 100 mg/L of NHs over 72 hours revealed that ZnO-GO had the most negative effect on T. pseudonana. The primary mechanism identified was the generation of ROS and GO-induced dispersion that caused electrostatic repulsion, preventing aggregation, and an increase in surface areas of NHs. In contrast to GO-induced dispersion, large aggregates were observed in ZnO/TiO 2conjugated CNT-based NHs. The scanning electron microscopy images suggest that NHs covered algae cells and interacted with them (shading effects); this reduced light availability for photosynthesis. Detailed in vitro toxicity effects and mechanisms that cause high adverse acute toxicity on T. pseudonana were unveiled; this implied concerns about potential hazards of these mechanisms in aquatic ecosystems. K E Y W O R D S carbon nanotube, graphene oxide, metal oxides, nanohybrids, Thalassiosira pseudonana,toxicity

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“…Souza et al evaluated GO effects with an effective concentration during acute exposure of 1.25 mg/L of GO. Chronic exposure resulted in a significant decrease in the number of neonates [ 10 ] and GO was also highly toxic to one of the most common fresh water ciliate protists, paramecium caudatum , at low concentrations [ 11 ]. The potential toxicity and high mobility of GO can cause serious long-term cumulative toxic effects in living organisms, and it has been demonstrated that GO and its derivatives can accumulate in the lung, liver and spleen for a long time [ 12 , 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Cement-Induced Coagulation of Aqueous Graphene Oxide with Ultrahigh Capacity and High Rate Behavior

et al. 2018

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Graphene oxide (GO) has excellent physicochemical properties and is used in multiple areas. However, the potential toxicity and environmental problems associated with GO increase its risk to the ecological system. In this study, cement was employed as a coagulant to eliminate GO from aqueous solutions. The effects of the cement dosage, the contact time, and the concentration and volume of the aqueous GO solution on the GO coagulation capacity were investigated in detail. The results showed that the dosage of cement had a significant effect on the coagulation process, and coagulation equilibrium was achieved in less than 1 h. Compared to coagulants used to remove GO from water in other reports, cement exhibited an ultrahigh coagulation capacity of approximately 5981.2 mg/g with 0.4 mg/mL GO solution. The kinetic analysis showed that the GO removal behavior could be described by a pseudo second-order model. The in-depth mechanism of GO coagulation using cement included Ca2+-induced coagulation of GO and adsorption by the hydrated product of cement paste. The present study revealed that cement could be a very cheap and promising material for the efficient elimination of GO from aqueous solutions.

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Chronic toxicity in Ceriodaphnia dubia induced by graphene oxide

Cited by 61 publications

References 30 publications

Ecotoxicological impact of graphene oxide: toxic effects on the model organism Artemia franciscana

Ecotoxicological impact of graphene oxide: toxic effects on the model organism Artemia franciscana

Toxicity of ZnO/TiO₂‐conjugated carbon‐based nanohybrids on the coastal marine alga Thalassiosira pseudonana

Cement-Induced Coagulation of Aqueous Graphene Oxide with Ultrahigh Capacity and High Rate Behavior

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Chronic toxicity in Ceriodaphnia dubia induced by graphene oxide

Cited by 61 publications

References 30 publications

Ecotoxicological impact of graphene oxide: toxic effects on the model organism Artemia franciscana

Ecotoxicological impact of graphene oxide: toxic effects on the model organism Artemia franciscana

Toxicity of ZnO/TiO2‐conjugated carbon‐based nanohybrids on the coastal marine alga Thalassiosira pseudonana

Cement-Induced Coagulation of Aqueous Graphene Oxide with Ultrahigh Capacity and High Rate Behavior

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Toxicity of ZnO/TiO₂‐conjugated carbon‐based nanohybrids on the coastal marine alga Thalassiosira pseudonana