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Connolly M, Moles G, Carniel FC, Tretiach M, Caorsi G, Flahaut E, Soula B, Pinelli E, Gauthier L, Mouchet F, Navas JM. Applicability of OECD TG 201, 202, 203 for the aquatic toxicity testing and assessment of 2D Graphene material nanoforms to meet regulatory needs. NANOIMPACT 2023; 29:100447. [PMID: 36563784 DOI: 10.1016/j.impact.2022.100447] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 06/17/2023]
Abstract
Tests using algae and/or cyanobacteria, invertebrates (crustaceans) and fish form the basic elements of an ecotoxicological assessment in a number of regulations, in particular for classification of a substance as hazardous or not to the aquatic environment according to the Globally Harmonised System of Classification and Labelling of Chemicals (GHS-CLP) (GHS, 2022) and the REACH regulation (Registration, Evaluation, Authorisation and Restriction of Chemicals, EC, 2006). Standardised test guidelines (TGs) of the Organisation for Economic Co-operation and Development (OECD) are available to address the regulatory relevant endpoints of growth inhibition in algae and cyanobacteria (TG 201), acute toxicity to invertebrates (TG 202), and acute toxicity in fish (TG 203). Applying these existing OECD TGs for testing two dimensional (2D) graphene nanoforms may require more attention, additional considerations and/or adaptations of the protocols, because graphene materials are often problematic to test due to their unique attributes. In this review a critical analysis of all existing studies and approaches to testing used has been performed in order to comment on the current state of the science on testing and the overall ecotoxicity of 2D graphene materials. Focusing on the specific tests and available guidance's, a complete evaluation of aquatic toxicity testing for hazard classification of 2D graphene materials, as well as the use of alternative tests in an integrated approach to testing and assessment, has been made. This information is essential to ensure future assessments generate meaningful data that will fulfil regulatory requirements for the safe use of this "wonder" material.
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Affiliation(s)
- M Connolly
- INIA-CSIC, Department of Environment and Agronomy, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria-Consejo Superior de Investigaciones Científicas, Ctra. de La Coruña, km 7, 5, 28040 Madrid, Spain.
| | - G Moles
- INIA-CSIC, Department of Environment and Agronomy, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria-Consejo Superior de Investigaciones Científicas, Ctra. de La Coruña, km 7, 5, 28040 Madrid, Spain
| | - F Candotto Carniel
- UNITS, Department of Chemical and Pharmaceutical Sciences, University of Trieste, via L. Giorgieri 1, Trieste I-34127, Italy
| | - M Tretiach
- UNITS, Department of Life Sciences, University of Trieste, via L. Giorgieri 10, Trieste I-34127, Italy
| | - G Caorsi
- UNITS, Department of Life Sciences, University of Trieste, via L. Giorgieri 10, Trieste I-34127, Italy
| | - E Flahaut
- CNRS CIRIMAT/ECOLAB, Centre National de la Recherche Scientifique, Centre Inter-universitaire de Recherche et d'Ingénierie en Matériaux (CIRIMAT)/Laboratoire Ecologie Fonctionnelle et Environnement, 16 Av Edouard Belin, 31400 Toulouse, France
| | - B Soula
- CNRS CIRIMAT/ECOLAB, Centre National de la Recherche Scientifique, Centre Inter-universitaire de Recherche et d'Ingénierie en Matériaux (CIRIMAT)/Laboratoire Ecologie Fonctionnelle et Environnement, 16 Av Edouard Belin, 31400 Toulouse, France
| | - E Pinelli
- CNRS CIRIMAT/ECOLAB, Centre National de la Recherche Scientifique, Centre Inter-universitaire de Recherche et d'Ingénierie en Matériaux (CIRIMAT)/Laboratoire Ecologie Fonctionnelle et Environnement, 16 Av Edouard Belin, 31400 Toulouse, France
| | - L Gauthier
- CNRS CIRIMAT/ECOLAB, Centre National de la Recherche Scientifique, Centre Inter-universitaire de Recherche et d'Ingénierie en Matériaux (CIRIMAT)/Laboratoire Ecologie Fonctionnelle et Environnement, 16 Av Edouard Belin, 31400 Toulouse, France
| | - F Mouchet
- CNRS CIRIMAT/ECOLAB, Centre National de la Recherche Scientifique, Centre Inter-universitaire de Recherche et d'Ingénierie en Matériaux (CIRIMAT)/Laboratoire Ecologie Fonctionnelle et Environnement, 16 Av Edouard Belin, 31400 Toulouse, France
| | - J M Navas
- INIA-CSIC, Department of Environment and Agronomy, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria-Consejo Superior de Investigaciones Científicas, Ctra. de La Coruña, km 7, 5, 28040 Madrid, Spain
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Gambardella C, Pinsino A. Nanomaterial Ecotoxicology in the Terrestrial and Aquatic Environment: A Systematic Review. TOXICS 2022; 10:393. [PMID: 35878298 PMCID: PMC9323026 DOI: 10.3390/toxics10070393] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/09/2022] [Accepted: 07/12/2022] [Indexed: 01/16/2023]
Abstract
This systematic review analyzes the studies available on the ecotoxicity of nanomaterials (NMs) in the environment to understand where future research should be addressed for achieving Agenda 2030 goals on sustainable development and environmental safety. We discuss the status of NMs ecotoxicological effects across different organisms that are representative of all natural environments (land, air, water). A total of 1562 publications were retrieved from the Web of Science (all databases) by using the search criteria "nanomaterials" and "ecotoxicology"; among them, 303 studies were included in the systematic review because they met any of the following criteria: (i) focalize on both search criteria; (ii) deal with terrestrial, or aquatic environment; (iii) address models (organisms, cells) for the nano environmental risk assessment and exposure. The knowledge gaps are identified together with novel insights that need to be further investigated to better understand the ecotoxicological environmental impacts of NMs.
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Affiliation(s)
- Chiara Gambardella
- Institute for the Study of Anthropic Impacts and Sustainability in the Marine Environment, National Research Council, 16149 Genova, Italy
| | - Annalisa Pinsino
- Institute of Translational Pharmacology, National Research Council, 90146 Palermo, Italy
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Wen SP, Trinh E, Yue Q, Fielding LA. Physical Adsorption of Graphene Oxide onto Polymer Latexes and Characterization of the Resulting Nanocomposite Particles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:8187-8199. [PMID: 35771239 PMCID: PMC9281389 DOI: 10.1021/acs.langmuir.2c00327] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Polymer/graphene oxide (GO) nanocomposite particles were prepared via heteroflocculation between 140-220 nm cationic latex nanoparticles and anionic GO nanosheets in either acidic or basic conditions. It is demonstrated that nanocomposite particles can be formed using either poly(2-vinylpyridine)-b-poly(benzyl methacrylate) (P2VP-PBzMA) block copolymer nanoparticles prepared by reversible-addition chain-transfer (RAFT)-mediated polymerization-induced self-assembly (PISA), or poly(ethylene glycol)methacrylate (PEGMA)-stabilized P2VP latexes prepared by traditional emulsion polymerization. These two latexes are different morphologically as the P2VP-PBzMA block copolymer latexes have P2VP steric stabilizer chains in their corona, whereas the PEGMA-stabilized P2VP particles have a P2VP core and a nonionic steric stabilizer. Nevertheless, both the P2VP-PBzMA and PEGMA-stabilized P2VP latexes are cationic at low pH. Thus, the addition of GO to these latexes causes flocculation to occur immediately due to the opposite charges between the anionic GO nanosheets and cationic latexes. Control heteroflocculation experiments were conducted using anionic sterically stabilized poly(potassium 3-sulfopropyl methacrylate)-b-poly(benzyl methacrylate) (PKSPMA-PBzMA) and nonionic poly(benzyl methacrylate) (PBzMA) nanoparticles to demonstrate that polymer/GO nanocomposite particles were not formed. The degree of flocculation and the strength of electrostatic interaction between the cationic polymer latexes and GO were assessed using disc centrifuge photosedimentometry (DCP), transmission electron microscopy (TEM), and UV-visible spectrophotometry. These studies suggest that the optimal conditions for the formation of polymer/GO nanocomposite particles were GO contents between 10% and 20% w/w relative to latex, with the latexes containing P2VP in their corona having a stronger electrostatic attraction to the GO sheets.
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Affiliation(s)
- Shang-Pin Wen
- Department
of Materials, School of Natural Sciences, University of Manchester, Oxford Road, Manchester M13 9PL, U.K.
| | - Elisabeth Trinh
- Department
of Materials, School of Natural Sciences, University of Manchester, Oxford Road, Manchester M13 9PL, U.K.
| | - Qi Yue
- Department
of Materials, School of Natural Sciences, University of Manchester, Oxford Road, Manchester M13 9PL, U.K.
| | - Lee A. Fielding
- Department
of Materials, School of Natural Sciences, University of Manchester, Oxford Road, Manchester M13 9PL, U.K.
- Henry
Royce Institute, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K.
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Zhao Y, Liu Y, Zhang X, Liao W. Environmental transformation of graphene oxide in the aquatic environment. CHEMOSPHERE 2021; 262:127885. [PMID: 32805658 DOI: 10.1016/j.chemosphere.2020.127885] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/11/2020] [Accepted: 07/30/2020] [Indexed: 06/11/2023]
Abstract
In recent years, research on graphene oxide (GO) has developed rapidly in both academic and industrial applications such as electronic, biosensor, drug delivery, water treatment and so forth. Based on the large amount of applications, it is anticipated that GO will inevitably find its own way to the environment, if used are not restricted to prevent their release. Environmental transformation is an important transformation process in the natural environment. In this review, we will summarize the recent developments on environmental transformation of GO in the aquatic environment. Although papers on environmental transformation of graphene-based nanomaterials can be found, a systematic picture describing photo-transformation of GO (dividing into different irradiation sources), environmental transformation of GO in the dark environmental, the environmental toxicity of GO are still lacking. Thus, it is essential to summarize how different light sources will affect the GO structure and reactive oxygen species generation in the photo-transformation process, how GO will react with various natural constituents in the aquatic environment, whether GO will toxic to different aquatic organisms and what will be the interactions between GO and the intracellular receptors in the intracellular level once GO released into the aquatic environment. This review will arouse the realization of potential risk that GO can bring to the aquatic environment and enlighten us to pay attention to behaviors of other two-dimensional GO-like nanomaterials, which have been intensively applied and studied in recent years.
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Affiliation(s)
- Yingcan Zhao
- Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Rd, Nanshan District, Shenzhen, Guangdong, 518055, PR China; Graduate School at Shenzhen, Tsinghua University, Shenzhen, Guangdong, 518055, PR China.
| | - Yang Liu
- Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Environmental and Municipal Engineering, Tianjin Chengjian University, NO.26, Jinjing Rd, Xiqing District, Tianjin, 300384, PR China; Tianjin Key Laboratory of Aquatic Science and Technology, School of Environmental and Municipal Engineering, Tianjin Chengjian University, NO.26, Jinjing Rd, Xiqing District, Tianjin, 300384, PR China.
| | - Xinbo Zhang
- Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Environmental and Municipal Engineering, Tianjin Chengjian University, NO.26, Jinjing Rd, Xiqing District, Tianjin, 300384, PR China; Tianjin Key Laboratory of Aquatic Science and Technology, School of Environmental and Municipal Engineering, Tianjin Chengjian University, NO.26, Jinjing Rd, Xiqing District, Tianjin, 300384, PR China
| | - Wenchao Liao
- College of Health and Environmental Engineering, Shenzhen Technology University, 3002 Lantian Rd, Pingshan District, Shenzhen, Guangdong, 518118, PR China
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