The effects of humic acid on the toxicity of graphene oxide to Scenedesmus obliquus and Daphnia magna

Zhang, Ying; Meng, Tiantian; Liu, Shi; Guo, Xinyu; Si, Xiaohui; Yang, Ruixin; Quan, Xie

doi:10.1016/j.scitotenv.2018.08.280

Cited by 59 publications

(26 citation statements)

References 34 publications

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“…Particles including MPs in the environment tend to interact with DOM such as humic acid (HA) and proteins to form a so-called eco-corona, which plays an important role in dictating the behavior and toxicity of particles to aquatic organisms. A similar effect was also found on engineered nanoparticles such as TiO 2, AgNP, , and graphene oxide with DOM present. Our previous study found that the addition of HA significantly alleviated the toxicity of nano-polystyrene (PS) to zooplankton.…”

Section: Introductionsupporting

confidence: 69%

Microplastic Impacts on Microalgae Growth: Effects of Size and Humic Acid

Jiang

You

et al. 2019

Environ. Sci. Technol.

258

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Research has already demonstrated the toxic effects of microplastics (MPs) on different biota. However, the underlying toxic mechanism of MPs remains to be elucidated, especially the effect of particle size and the presence of dissolved organic matter in water. This study investigated the impact on Scenedesmus obliquus exposed in five types of polystyrene particle suspensions with different sizes and surface charges, in the presence and absence of humic acid (HA). Results indicated that the 50% growth inhibition rate of S. obliquus showed no significant difference between the five types of MPs, but the toxic mechanism varied with particle size. Larger size MPs caused adverse effects by blocking the light transport and affecting photosynthesis, while smaller ones destroyed the cell wall by adsorbing onto the algae surface. Also, the addition of HA significantly alleviated the toxicity of smaller size MPs, but not of the larger ones. Scanning electron microscopy images and the reactive oxygen species assay demonstrated that the HA could form a corona on the surface of MPs, reduce the affinity to microalgae, and minimize the adverse effect. Together, these findings identified important factors in determining the toxicity of MPs, providing valuable data for risk assessment of MPs.

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Section: Introductionsupporting

confidence: 69%

Microplastic Impacts on Microalgae Growth: Effects of Size and Humic Acid

Jiang

You

et al. 2019

Environ. Sci. Technol.

258

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“…a) Membrane damage. Carbon-based NMs, such as MWCNTs and graphene-family materials, are known to induce membrane damage through mechanical interactions (Hu et al 2014;Schlagenhauf et al 2015;Zhang et al 2019b;Zhao et al 2014). As for the graphene oxide, Zucker et al reported that the extent of membrane damage depended on the total surface area of graphene oxide (Zucker et al 2017).…”

Section: Mechanisms By Which Nom Influences the Toxicity Of Nms By Aq...mentioning

confidence: 99%

A critical review on the biological impact of natural organic matter on nanomaterials in the aquatic environment

et al. 2022

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Nanomaterials (NMs) are able to interact with natural organic matter (NOM) such that NOM is adsorbed on the surface of NMs to form an ecological corona (eco-corona). The formation of an eco-corona can greatly influence the behavior, risk and fate of NMs in the environment. A systematic understanding of the impacts of an eco-corona on the hazards of NMs is crucial for NMs risk assessment in the aquatic environment. Herein, the mechanisms of the formation of an eco-corona were reviewed based on the representative literatures and their generality was discussed on the basis of the type of NMs, the type of NOM and the environmental conditions. The effects of an eco-corona on the bioaccumulation and toxicity of NMs for aquatic organisms were systematically discussed through reported studies. The results showed that an eco-corona could alter the toxicity of NMs by changing the dissolution of NMs, adhesion of NMs and the damages to bio-membranes, internalization, and the generation of NMs-induced reactive oxygen species. The dual effects of an eco-corona on the toxicity/accumulation of NMs were widely present because of the complex molecular composition of NOM, the diverse types of NMs, and the variable environmental conditions. The effects of an eco-corona on the fate and the effects of other pollutants (such as metals and organic pollutants) were also carefully reviewed. The results showed that more research is needed to investigate the effect of an eco-corona through the development of novel techniques, mathematical modeling, and mesocosm studies. Graphical Abstract

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“…In part, the variability in the results published so far is associated with differences in the graphene physico-chemical properties (e.g., flake size, structural defects, oxygenated groups and purity) and the agglomeration/aggregation events occurring in the exposure medium [ 62 , 63 ]. Additionally, surface chemistry modifications such as interactions with natural organic matter (NOM) can modulate the toxicity of GO-based materials towards D. magna [ 64 , 65 ]. The lack of any effects from our GO and BSA@GO materials over 72 h is related to the fact that we used environmentally relevant concentrations, rather than dosing until effects were observed.…”

Section: Resultsmentioning

confidence: 99%

Effect of the Albumin Corona on the Toxicity of Combined Graphene Oxide and Cadmium to Daphnia magna and Integration of the Datasets into the NanoCommons Knowledge Base

et al. 2020

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In this work, we evaluated the effect of protein corona formation on graphene oxide (GO) mixture toxicity testing (i.e., co-exposure) using the Daphnia magna model and assessing acute toxicity determined as immobilisation. Cadmium (Cd2+) and bovine serum albumin (BSA) were selected as co-pollutant and protein model system, respectively. Albumin corona formation on GO dramatically increased its colloidal stability (ca. 60%) and Cd2+ adsorption capacity (ca. 4.5 times) in reconstituted water (Daphnia medium). The acute toxicity values (48 h-EC50) observed were 0.18 mg L−1 for Cd2+-only and 0.29 and 0.61 mg L−1 following co-exposure of Cd2+ with GO and BSA@GO materials, respectively, at a fixed non-toxic concentration of 1.0 mg L−1. After coronation of GO with BSA, a reduction in cadmium toxicity of 110 % and 238% was achieved when compared to bare GO and Cd2+-only, respectively. Integration of datasets associated with graphene-based materials, heavy metals and mixture toxicity is essential to enable re-use of the data and facilitate nanoinformatics approaches for design of safer nanomaterials for water quality monitoring and remediation technologies. Hence, all data from this work were annotated and integrated into the NanoCommons Knowledge Base, connecting the experimental data to nanoinformatics platforms under the FAIR data principles and making them interoperable with similar datasets.

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The effects of humic acid on the toxicity of graphene oxide to Scenedesmus obliquus and Daphnia magna

Cited by 59 publications

References 34 publications

Microplastic Impacts on Microalgae Growth: Effects of Size and Humic Acid

Microplastic Impacts on Microalgae Growth: Effects of Size and Humic Acid

A critical review on the biological impact of natural organic matter on nanomaterials in the aquatic environment

Effect of the Albumin Corona on the Toxicity of Combined Graphene Oxide and Cadmium to Daphnia magna and Integration of the Datasets into the NanoCommons Knowledge Base

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