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Balraadjsing S, J G M Peijnenburg W, Vijver MG. Building species trait-specific nano-QSARs: Model stacking, navigating model uncertainties and limitations, and the effect of dataset size. ENVIRONMENT INTERNATIONAL 2024; 188:108764. [PMID: 38788418 DOI: 10.1016/j.envint.2024.108764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 05/17/2024] [Accepted: 05/19/2024] [Indexed: 05/26/2024]
Abstract
A strong need exists for broadly applicable nano-QSARs, capable of predicting toxicological outcomes towards untested species and nanomaterials, under different environmental conditions. Existing nano-QSARs are generally limited to only a few species but the inclusion of species characteristics into models can aid in making them applicable to multiple species, even when toxicity data is not available for biological species. Species traits were used to create classification- and regression machine learning models to predict acute toxicity towards aquatic species for metallic nanomaterials. Afterwards, the individual classification- and regression models were stacked into a meta-model to improve performance. Additionally, the uncertainty and limitations of the models were assessed in detail (beyond the OECD principles) and it was investigated whether models would benefit from the addition of more data. Results showed a significant improvement in model performance following model stacking. Investigation of model uncertainties and limitations highlighted the discrepancy between the applicability domain and accuracy of predictions. Data points outside of the assessed chemical space did not have higher likelihoods of generating inadequate predictions or vice versa. It is therefore concluded that the applicability domain does not give complete insight into the uncertainty of predictions and instead the generation of prediction intervals can help in this regard. Furthermore, results indicated that an increase of the dataset size did not improve model performance. This implies that larger dataset sizes may not necessarily improve model performance while in turn also meaning that large datasets are not necessarily required for prediction of acute toxicity with nano-QSARs.
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Affiliation(s)
- Surendra Balraadjsing
- Institute of Environmental Sciences (CML), Leiden University, PO Box 9518, 2300 RA Leiden, the Netherlands.
| | - Willie J G M Peijnenburg
- Institute of Environmental Sciences (CML), Leiden University, PO Box 9518, 2300 RA Leiden, the Netherlands; Centre for Safety of Substances and Products, National Institute of Public Health and the Environment (RIVM), PO Box 1, 3720 BA Bilthoven, the Netherlands
| | - Martina G Vijver
- Institute of Environmental Sciences (CML), Leiden University, PO Box 9518, 2300 RA Leiden, the Netherlands
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2
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Krishnasamy Sekar R, Arunachalam R, Anbazhagan M, Palaniyappan S, Veeran S, Sridhar A, Ramasamy T. Accumulation, Chronicity, and Induction of Oxidative Stress Regulating Genes Through Allium cepa L. Functionalized Silver Nanoparticles in Freshwater Common Carp (Cyprinus carpio). Biol Trace Elem Res 2023; 201:904-925. [PMID: 35199287 DOI: 10.1007/s12011-022-03164-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 02/14/2022] [Indexed: 01/21/2023]
Abstract
Green evolutionary products such as biologically fabricated nanoparticles (NPs) pose a hazard to aquatic creatures. Herein, biogenic silver nanoparticles (AgNPs) were synthesized by the reaction between ionic silver (AgNO3) and aqueous onion peel extract (Allium cepa L). The synthesized biogenic AgNPs were characterized with UV-Visible spectrophotometer, XRD, FT-IR, and TEM with EDS analysis; then, their toxicity was assessed on common carp fish (Cyprinus carpio) using biomarkers of haematological alterations, oxidative stress, histological changes, differential gene expression patterns, and bioaccumulation. The 96 h lethal toxicity was analysed with various concentrations (2, 4, 6, 8, and 10 mg/l) of biogenic AgNPs. Based on 96 h LC50, sublethal concentrations (1/15th, 1/10th, and 1/5th) were given to C. carpio for 28 days. At the end of experiment, the bioaccumulations of Ag content were accumulated mainly in the gills, followed by the liver and muscle. At an interval of 7 days, the haematological alterations showed significance (p < 0.05) and elevation of antioxidant defence mechanism reveals the toxicity of biogenic synthesized AgNPs. Adverse effects on oxidative stress were probably related to the histopathological damage of its vital organs like gill, liver, and muscle. Finally, the fish treated with biogenic synthesized AgNPs were significantly (p < 0.05) downregulates the oxidative stress genes such as Cu-Zn SOD, CAT, GPx1a, GST-α, CYP1A, and Nrf-2 expression patterns. The present study provides evidence of biogenic synthesized AgNPs influence on the aquatic life through induction of oxidative stress.
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Affiliation(s)
- Rajkumar Krishnasamy Sekar
- Laboratory of Aquabiotics & Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tamil Nadu, Tiruchirappalli, 620 024, India
| | - Ramkumar Arunachalam
- UGC-National Centre for Alternatives to Animal Experiments, Bharathidasan University, Tamil Nadu, 620 024, Tiruchirappalli, India
| | - Murugadas Anbazhagan
- UGC-National Centre for Alternatives to Animal Experiments, Bharathidasan University, Tamil Nadu, 620 024, Tiruchirappalli, India
- Department of Pediatrics, School of Medicine, Emory University, GA, 30322, Atlanta, USA
| | - Sivagaami Palaniyappan
- Laboratory of Aquabiotics & Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tamil Nadu, Tiruchirappalli, 620 024, India
| | - Srinivasan Veeran
- Laboratory of Aquabiotics & Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tamil Nadu, Tiruchirappalli, 620 024, India
| | - Arun Sridhar
- Laboratory of Aquabiotics & Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tamil Nadu, Tiruchirappalli, 620 024, India
- Immunology-Vaccinology, Department of Infectious and Parasitic Diseases, Fundamental and Applied Research for Animals & Health (FARAH), Faculty of Veterinary Medicine, University of Liège, Liège, Belgium
| | - Thirumurugan Ramasamy
- Laboratory of Aquabiotics & Nanoscience, Department of Animal Science, School of Life Sciences, Bharathidasan University, Tamil Nadu, Tiruchirappalli, 620 024, India.
- UGC-National Centre for Alternatives to Animal Experiments, Bharathidasan University, Tamil Nadu, 620 024, Tiruchirappalli, India.
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Andrade VS, Ale A, Antezana PE, Desimone MF, Cazenave J, Gutierrez MF. Ecotoxicity of nanosilver on cladocerans and the role of algae provision. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:27137-27149. [PMID: 36378381 DOI: 10.1007/s11356-022-24154-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
Silver nanoparticles (AgNPs) are applied in diverse industries due to their biocide and physicochemical properties; therefore, they can be released into aquatic systems, interact with environmental factors, and ultimately exert adverse effects on the biota. We analyzed AgNPs effects on Ceriodaphnia reticulata (Cladocera) through mortality and life-history traits, considering the influence of food (Tetradesmus obliquus, Chlorophyceae) presence and concentration. C. reticulata was exposed to AgNPs in acute (absence and two algae concentrations plus five AgNPs treatments) and chronic assays (two algae concentrations plus three AgNPs treatments). AgNPs did not affect algae flocculation but increased Ag+ release, being these ions less toxic than AgNPs (as proved by the exposure to AgNO3). A reduction in AgNPs acute toxicity was observed when algae concentration increased. Acute AgNP exposure decreased C. reticulata body size and heart rate. The chronic AgNP exposure reduced C. reticulata molt number, growth, heart rate, and neonate size:number ratio, being these effects mitigated at the highest algae concentration. Increases in relative size and number of neonates were observed in AgNP treatments suggesting energy trade off. The increased Ag+ release with food presence suggests that the AgNP-algae interaction might be responsible of the decreased toxicity. Although algae reduced AgNP toxicity, they still exerted adverse effects on C. reticulata below predicted environmental concentrations. Since algae presence reduces AgNP effects but increases Ag+ release, studies should be continued to provide evidence on their toxicity to other organisms.
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Affiliation(s)
| | - Analía Ale
- Instituto Nacional de Limnología (CONICET-UNL), Santa Fe, Argentina
| | - Pablo Edmundo Antezana
- Consejo Nacional de Investigaciones Científicas Y Técnicas (CONICET), Instituto de La Química Y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia Y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Martín Federico Desimone
- Consejo Nacional de Investigaciones Científicas Y Técnicas (CONICET), Instituto de La Química Y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia Y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Jimena Cazenave
- Instituto Nacional de Limnología (CONICET-UNL), Santa Fe, Argentina
- Departamento de Ciencias Naturales, Facultad de Humanidades Y Ciencias, Universidad Nacional del Litoral (FHUC-UNL), Santa Fe, Argentina
| | - María Florencia Gutierrez
- Instituto Nacional de Limnología (CONICET-UNL), Santa Fe, Argentina
- Escuela Superior de Sanidad "Dr. Ramon Carrillo" Facultad de Bioquímica Y Ciencias Biológicas, Universidad Nacional del Litoral (FBCB-UNL), Santa Fe, Argentina
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Egler SG, Roldão TM, Santos GO, Heidelmann GP, Giese EC, Correia FV, Saggioro EM. Acute toxicity of single and combined rare earth element exposures towards Daphnia similis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 251:114538. [PMID: 36652740 DOI: 10.1016/j.ecoenv.2023.114538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/16/2022] [Accepted: 01/09/2023] [Indexed: 06/17/2023]
Abstract
The increasing use of Rare Earth Elements (REE) in emerging technologies, medicine and agriculture has led to chronic aquatic compartment contamination. In this context, this aimed to evaluate the acute toxic effects of lanthanum (La), neodymium (Nd) and samarium (Sm), as both single and binary and ternary mixtures on the survival of the microcrustacean Daphnia similis. A metal solution medium with (MS) and without EDTA and cyanocobalamin (MSq) as chelators was employed as the assay dilution water to assess REE bioavailability effects. In the single exposure experiments, toxicity in the MS medium decreased following the order La > Sm > Nd, while the opposite was noted for the MSq medium, which was also more toxic than the MS medium. The highest MS toxicity was observed for the binary Nd + La (1:1) mixture (EC50 48 h of 11.57 ± 1.22 mg.L-1) and the lowest, in the ternary Sm + La + Nd (2:2:1) mixture (EC50 48 h 41.48 ± 1.40 mg.L-1). The highest toxicity in the MSq medium was observed in the single assays and in the binary Sm + Nd (1:1) mixture (EC50 48 h 10.60 ± 1.57 mg.L-1), and the lowest, in the ternary Sm + La + Nd (1:2:2) mixture (EC50 48 h 36.76 ± 1.54 mg.L-1). Concerning the MS medium, 75 % of interactions were additive, 19 % antagonistic, and 6 % synergistic. In the MSq medium, 56 % of interactions were synergistic and 44 % additive. The higher toxicity observed in the MSq medium indicates that the absence of chelators can increase the concentrations of more toxic free ions, suggesting that the MS medium should be avoided in REE assays. Additive interactions were observed in greater or equivalent amounts in both media and were independent of elemental mixture ratios. These findings improve the understanding of environmental REE effects, contributing to the establishment of future guidelines and ecological risk calculations.
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Affiliation(s)
- Silvia Gonçalves Egler
- Centro de Tecnologia Mineral, CETEM/MCTI, Av. Pedro Calmon, 900, Cidade Universitária, CEP: 21.941-908 Rio de Janeiro, RJ, Brazil
| | - Tamine Martins Roldão
- Centro de Tecnologia Mineral, CETEM/MCTI, Av. Pedro Calmon, 900, Cidade Universitária, CEP: 21.941-908 Rio de Janeiro, RJ, Brazil
| | - Gabriel Oliveira Santos
- Centro de Tecnologia Mineral, CETEM/MCTI, Av. Pedro Calmon, 900, Cidade Universitária, CEP: 21.941-908 Rio de Janeiro, RJ, Brazil
| | - Gisele Petronilho Heidelmann
- Centro de Tecnologia Mineral, CETEM/MCTI, Av. Pedro Calmon, 900, Cidade Universitária, CEP: 21.941-908 Rio de Janeiro, RJ, Brazil
| | - Ellen Cristine Giese
- Centro de Tecnologia Mineral, CETEM/MCTI, Av. Pedro Calmon, 900, Cidade Universitária, CEP: 21.941-908 Rio de Janeiro, RJ, Brazil
| | - Fabio Verissimo Correia
- UNIRIO, Departamento de Ciências Naturais, Av. Pasteur, 458, Urca, 22290-20 Rio de Janeiro, Brazil; Programa de Pós-Graduação em Saúde Pública e Meio Ambiente, Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz, Av. Leopoldo Bulhões 1480, 21041-210 Rio de Janeiro, RJ, Brazil; Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil, 4365 - Manguinhos, 21040-360 Rio de Janeiro, Brazil
| | - Enrico Mendes Saggioro
- Programa de Pós-Graduação em Saúde Pública e Meio Ambiente, Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz, Av. Leopoldo Bulhões 1480, 21041-210 Rio de Janeiro, RJ, Brazil; Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil, 4365 - Manguinhos, 21040-360 Rio de Janeiro, Brazil.
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Içoglu Aksakal F, Yilmaz A, Koc K, Özdemir S. A comparative study on aquatic toxicity of chemically-synthesized and green synthesis silver nanoparticles on daphnia magna. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2022; 32:2149-2159. [PMID: 34191661 DOI: 10.1080/09603123.2021.1947991] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 06/22/2021] [Indexed: 06/13/2023]
Abstract
The steady increase in the employment of silver nanoparticles (AgNPs) in consumer products entails the determination of the aquatic toxicity of AgNPs. Various AgNP characteristics including particle size, and shape, surface charge, and material have prominent effects on ecotoxicity. In the present study, we investigated the aquatic toxicity of chemically-synthesized AgNPs (Che-AgNPs) and green synthesis AgNPs (Gr-AgNPs) to Daphnia magna as a model organism. In each case, Che-AgNPs and Gr-AgNPs showed dose-dependent toxicity in the range of 5-50 ppb. It was also detected that the size and surface coverage material of AgNPs has a significant impact on the survival rate of D. magna. We also analyzed the expression of some genes related to detoxification and the reproductive system. These observations presented that in both NP types the significant alterations were detected in genes of the model organism in a dose-dependent manner.
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Affiliation(s)
- Feyza Içoglu Aksakal
- Department of Agricultural Biotechnology, Faculty of Agriculture, Atatürk University, Erzurum, Turkey
| | - Asli Yilmaz
- Department of Molecular Biology and Genetics, Faculty of Science, Atatürk University, Erzurum, Turkey
| | - Kubra Koc
- Department of Biology, Faculty of Science, Ataturk University, Erzurum, TURKEY
| | - Selçuk Özdemir
- Department of Genetics, Faculty of Veterinary Medicine, Atatürk University, Yakutiye, Erzurum, Turkey
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Jan N, Majeed N, Ahmad M, Ahmad Lone W, John R. Nano-pollution: Why it should worry us. CHEMOSPHERE 2022; 302:134746. [PMID: 35489464 DOI: 10.1016/j.chemosphere.2022.134746] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 03/05/2022] [Accepted: 04/24/2022] [Indexed: 06/14/2023]
Abstract
Nanoparticles are immensely diverse both in terms of quality and sources of emission into the environment. Nowadays, nanotechnologies are developing and growing at a rapid pace without specific rules and regulations, leading to a severe effect on environment and affecting the labours in outdoor and indoor workplaces. The continue and enormous use of NPs for industrial and commercial purposes, has put a pressing need to think whether the increasing use of these NPs could overcome the severe environmental effects and unknown human health risks. Only a few studies have been carried out to assess the toxic effect of these NPs resulting from their direct or indirect exposure. There is in an increasing clamour to consider environmental implications of NPs and to monitor the outcome of NP during use in biological testing. There remain many open questions for consideration. An adequate research is required to determine the real toxic effect of these NPs on environment and human health. In this review, we have discussed the negative effects of NPs on environment and biosphere at large and the future research required.
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Affiliation(s)
- Nelofer Jan
- Plant Molecular Biology Laboratory, Department of Botany, University of Kashmir, Srinagar, 190006, India
| | - Neelofar Majeed
- Plant Molecular Biology Laboratory, Department of Botany, University of Kashmir, Srinagar, 190006, India
| | - Muneeb Ahmad
- Plant Molecular Biology Laboratory, Department of Botany, University of Kashmir, Srinagar, 190006, India
| | - Waseem Ahmad Lone
- Plant Molecular Biology Laboratory, Department of Botany, University of Kashmir, Srinagar, 190006, India
| | - Riffat John
- Plant Molecular Biology Laboratory, Department of Botany, University of Kashmir, Srinagar, 190006, India.
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Liu Z, Malinowski CR, Sepúlveda MS. Emerging trends in nanoparticle toxicity and the significance of using Daphnia as a model organism. CHEMOSPHERE 2022; 291:132941. [PMID: 34793845 DOI: 10.1016/j.chemosphere.2021.132941] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/22/2021] [Accepted: 11/14/2021] [Indexed: 06/13/2023]
Abstract
Nanoparticle production is on the rise due to its many uses in the burgeoning nanotechnology industry. Although nanoparticles have growing applications, there is great concern over their environmental impact due to their inevitable release into the environment. With uncertainty of environmental concentration and risk to aquatic organisms, the microcrustacean Daphnia spp. has emerged as an important freshwater model organism for risk assessment of nanoparticles because of its biological properties, including parthenogenetic reproduction; small size and short generation time; wide range of endpoints for ecotoxicological studies; known genome, useful for providing mechanistic information; and high sensitivity to environmental contaminants and other stressors. In this review, we (1) highlight the advantages of using Daphnia as an experimental model organism for nanotoxicity studies, (2) summarize the impacts of nanoparticle physicochemical characteristics on toxicity in relation to Daphnia, and (3) summarize the effects of nanoparticles (including nanoplastics) on Daphnia as well as mechanisms of toxicity, and (4) highlight research uncertainties and recommend future directions necessary to develop a deeper understanding of the fate and toxicity of nanoparticles and for the development of safer and more sustainable nanotechnology.
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Affiliation(s)
- Zhiquan Liu
- Department of Forestry and Natural Resources, Purdue University, West Lafayette, IN, 47907, USA; School of Life Science, East China Normal University, Shanghai, 200241, China
| | | | - Maria S Sepúlveda
- Department of Forestry and Natural Resources, Purdue University, West Lafayette, IN, 47907, USA.
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Garcinia cambogia Assisted Synthesis of ZnO Nanoparticles Coupled with Chitosan for Antibacterial, Antibiofilm, Cytotoxic, Anticancer and Ecotoxicity Assessment. J CLUST SCI 2021. [DOI: 10.1007/s10876-021-02032-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Yang H, Lu G, Yan Z, Liu J. Influence of suspended sediment on the bioavailability of benzophenone-3: Focus on accumulation and multi-biological effects in Daphnia magna. CHEMOSPHERE 2021; 275:129974. [PMID: 33639549 DOI: 10.1016/j.chemosphere.2021.129974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 02/08/2021] [Accepted: 02/11/2021] [Indexed: 06/12/2023]
Abstract
The UV-filter benzophenone-3 (BP3) tends to associate with suspended sediment (SPS) due to hydrophobicity, which could alter its toxicological effects on non-target aquatic organisms. In this study, the freshwater cladoceran Daphnia magna (D. magna) was selected as a model organism to investigate the impacts of the source and composition of SPS on the accumulation and multiple toxicological effects (from the molecular level to individual level) of BP3. Among the three components of SPS, amorphous organic carbon (AOC) and minerals promoted the body burden of BP3, while black carbon (BC) inhibited the bioaccumulation. The inhibition effects of BP3 on swimming and feeding behaviors of D. magna were also enhanced due to the presence of AOC and BC. Compared with BP3 exposure alone, higher oxidative stress and neurotoxicity were observed in the presence of SPS containing AOC, BC and minerals, corresponding to that superoxide dismutase, catalase and glutathione-S-transferase activities were further induced, and acetylcholinesterase activity was inhibited. Furthermore, BP3 induced mRNA expression levels of the endocrine system (ecdysone receptor, cytochrome P450 CYP314) and metabolic system (toxicant nuclear receptor HR96, P-glycoprotein), and the presence of SPS containing AOC, BC and minerals exhibited an enhanced effect. Combined with all endpoints, evident relationship was observed between the bioaccumulation level and the response of individual behavior and molecular biomarkers. The results demonstrated that the effects of SPS compositions on bioaccumulation and toxicological effects of organic UV-filters should be considered in aquatic environments.
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Affiliation(s)
- Haohan Yang
- Key Laboratory for Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
| | - Guanghua Lu
- Key Laboratory for Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China; Water Conservancy Project & Civil Engineering College, Tibet Agriculture & Animal Husbandry University, Linzhi, 860000, China.
| | - Zhenhua Yan
- Key Laboratory for Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
| | - Jianchao Liu
- Key Laboratory for Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China
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Mehennaoui K, Cambier S, Minguez L, Serchi T, Guérold F, Gutleb AC, Giamberini L. Sub-chronic effects of AgNPs and AuNPs on Gammarus fossarum (Crustacea Amphipoda): From molecular to behavioural responses. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 210:111775. [PMID: 33421722 DOI: 10.1016/j.ecoenv.2020.111775] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 12/04/2020] [Accepted: 12/05/2020] [Indexed: 06/12/2023]
Abstract
The aim of the present study was the assessment of the sub-chronic effects of silver (AgNPs) and gold nanoparticles (AuNPs) of 40 nm primary size either stabilised with citrate (CIT) or coated with polyethylene glycol (PEG) on the freshwater invertebrate Gammarus fossarum. Silver nitrate (AgNO3) was used as a positive control in order to study the contribution of silver ions potentially released from AgNPs on the observed effects. A multibiomarker approach was used to assess the long-term effects of AgNPs and AuNPs 40 nm on molecular, cellular, physiological and behavioural responses of G. fossarum. Specimen of G. fossarum were exposed for 15 days to 0.5 and 5 µgL-1 of CIT and PEG AgNPs and AuNPs 40 nm in the presence of food. A significant uptake of both Ag and Au was observed in exposed animals but was under the toxic threshold leading to mortality of G. fossarum. Silver nanoparticles (CIT-AgNPs and PEG-AgNPs 40 nm) led to an up-regulation of Na+K+ATPase gene expression. An up-regulation of Catalse and Chitinase gene expressions due to exposure to PEG-AgNPs 40 nm was also observed. Gold nanoparticles (CIT and PEG-AuNPs 40 nm) led to an increase of CuZnSOD gene expression. Furthermore, both AgNPs and AuNPs led to a more developed digestive lysosomal system indicating a general stress response in G. fossarum. Both AgNPs and AuNPs 40 nm significantly affected locomotor activity of G. fossarum while no effects were observed on haemolymphatic ions and ventilation.
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Affiliation(s)
- Kahina Mehennaoui
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, Belvaux, Luxembourg; Université de Lorraine, CNRS UMR 7360, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Campus Bridoux, Rue du Général Delestraint, F-57000, Metz, France
| | - Sébastien Cambier
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, Belvaux, Luxembourg
| | - Laëtitia Minguez
- Université de Lorraine, CNRS UMR 7360, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Campus Bridoux, Rue du Général Delestraint, F-57000, Metz, France
| | - Tommaso Serchi
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, Belvaux, Luxembourg
| | - François Guérold
- Université de Lorraine, CNRS UMR 7360, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Campus Bridoux, Rue du Général Delestraint, F-57000, Metz, France
| | - Arno C Gutleb
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, Belvaux, Luxembourg
| | - Laure Giamberini
- Université de Lorraine, CNRS UMR 7360, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Campus Bridoux, Rue du Général Delestraint, F-57000, Metz, France.
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11
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You G, Hou J, Xu Y, Miao L, Ao Y, Xing B. Surface Properties and Environmental Transformations Controlling the Bioaccumulation and Toxicity of Cerium Oxide Nanoparticles: A Critical Review. REVIEWS OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 253:155-206. [PMID: 32462332 DOI: 10.1007/398_2020_42] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Increasing production and utilization of cerium oxide nanoparticles (CNPs) in recent years have raised wide concerns about their toxicity. Numerous studies have been conducted to reveal the toxicity of CNPs, but the results are sometimes contradictory. In this review, the most important factors in mediating CNPs toxicity are discussed, including (1) the roles of physicochemical properties (size, morphology, agglomeration condition, surface charge, coating and surface valence state) on CNPs toxicity; (2) the phase transfer and transformation process of CNPs in various aqueous, terrestrial, and airborne environments; and (3) reductive dissolution of CNPs core and their chemical reactions with phosphate, sulfate/S2-, and ferrous ions. The physicochemical properties play key roles in the interactions of CNPs with organisms and consequently their environmental transformations, reactivity and toxicity assessment. Also, the speciation transformations of CNPs caused by reactions with (in)organic ligands in both environmental and biological systems would further alter their fate, transport, and toxicity potential. Thus, the toxicity mechanisms are proposed based on the physical damage of direct adsorption of CNPs onto the cell membrane and chemical inhibition (including oxidative stress and interaction of CNPs with biomacromolecules). Finally, the current knowledge gaps and further research needs in identifying the toxicological risk factors of CNPs under realistic environmental conditions are highlighted, which might improve predictions about their potential environmental influences. This review aims to provide new insights into cost-effectiveness of control options and management practices to prevent environmental risks from CNPs exposure.
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Affiliation(s)
- Guoxiang You
- Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, China
| | - Jun Hou
- Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, China.
| | - Yi Xu
- Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, China
| | - Lingzhan Miao
- Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, China
| | - Yanhui Ao
- Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, China
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA, USA.
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Khoshnamvand M, Hao Z, Fadare OO, Hanachi P, Chen Y, Liu J. Toxicity of biosynthesized silver nanoparticles to aquatic organisms of different trophic levels. CHEMOSPHERE 2020; 258:127346. [PMID: 32544815 DOI: 10.1016/j.chemosphere.2020.127346] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 05/29/2020] [Accepted: 06/05/2020] [Indexed: 06/11/2023]
Abstract
Although biosynthesized nanoparticles are regarded as green products, research on their toxicity to aquatic food chains is scarce. Herein, biosynthesized silver nanoparticles (Alcea rosea-silver nanoparticles, AR-AgNPs) were produced by the reaction of Ag ions with leaf extract of herbal plant Alcea rosea. Then, the toxic effects of AR-AgNPs and their precursors such as Ag+ ions and coating agent (A. rosea leaf extract) on organisms of different trophic levels of a freshwater food chain were investigated. To the three studied aquatic organisms including phytoplankton (Chlorella vulgaris), zooplankton (Daphnia magna) and fish (Danio rerio), the coating agents of AR-AgNPs showed no toxic effects, and Ag+ ions were more toxic in comparison to AR-AgNPs. Further investigations revealed that the release of Ag+ ions from AR-AgNPs to the test media were not considerable due to the high stability of AR-AgNPs, thus the toxicity stemmed mainly from the particles of AR-AgNPs in all the three trophic levels. Based on values of 72-h EC50 for C. vulgaris, 48-h LC50 for D. magna and 96-h LC50 for D. rerio, the most sensitive organism to AR-AgNPs exposure was D. magna (the second trophic level).
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Affiliation(s)
- Mehdi Khoshnamvand
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Zhineng Hao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
| | - Oluniyi O Fadare
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Parichehr Hanachi
- Department of Biotechnology, Faculty of Biological Science, Alzahra University, Tehran, Iran.
| | - Yongsheng Chen
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
| | - Jingfu Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Institute of Environment and Health, Jianghan University, Hubei Province, Wuhan, 430056, China.
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13
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Falanga A, Siciliano A, Vitiello M, Franci G, Del Genio V, Galdiero S, Guida M, Carraturo F, Fahmi A, Galdiero E. Ecotoxicity Evaluation of Pristine and Indolicidin-coated Silver Nanoparticles in Aquatic and Terrestrial Ecosystem. Int J Nanomedicine 2020; 15:8097-8108. [PMID: 33116520 PMCID: PMC7585781 DOI: 10.2147/ijn.s260396] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 08/19/2020] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Metallic nanoparticles (NPs) are highly exploited in manufacturing and medical processes in a broad spectrum of industrial applications and in the academic sectors. Several studies have suggested that many metallic nanomaterials including those derived by silver (Ag) are entering the ecosystem to cause significant toxic consequences in cell culture and animal models. However, ecotoxicity studies are still receiving limited attention when designing functionalized and non.-functionalized AgNPs. OBJECTIVE This study aimed to investigate different ecotoxicological profiles of AgNPs, which were analyzed in two different states: in pristine form uncoated AgNPs and coated AgNPs with the antimicrobial peptide indolicidin. These two types of AgNPs are exploited for a set of different tests using Daphnia magna and Raphidocelis subcapitata, which are representatives of two different levels of the aquatic trophic chain, and seeds of Lepidium sativum, Cucumis sativus and Lactuca sativa. RESULTS Ecotoxicological studies showed that the most sensitive organism to AgNPs was crustacean D. magna, followed by R. subcapitata and plant seeds, while AgNPs coated with indolicidin (IndAgNPs) showed a dose-dependent decreased toxicity for all three. CONCLUSION The obtained results demonstrate that high ecotoxicity induced by AgNPs is strongly dependent on the surface chemistry, thus the presence of the antimicrobial peptide. This finding opens new avenues to design and fabricate the next generation of metallic nanoparticles to ensure the biosafety and risk of using engineered nanoparticles in consumer products.
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Affiliation(s)
- Annarita Falanga
- Department of Agricultural Science, University of Naples Federico II, Portici80055, Italy
| | | | - Mariateresa Vitiello
- Department of Clinical Pathology, Virology Unit, “San Giovanni di Dio e Ruggi d’Aragona Hospital”, Salerno, Italy
| | - Gianluigi Franci
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana,” University of Salerno, Baronissi, Italy
| | - Valentina Del Genio
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples80134, Italy
| | - Stefania Galdiero
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples80134, Italy
| | - Marco Guida
- Department of Biology, University of Naples Federico II, Naples80100, Italy
| | - Federica Carraturo
- Department of Biology, University of Naples Federico II, Naples80100, Italy
| | - Amir Fahmi
- Rhein-Waal University of Applied Sciences, KleveD-47533, Germany
| | - Emilia Galdiero
- Department of Biology, University of Naples Federico II, Naples80100, Italy
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Tullio SCMC, Chalcraft DR. Converting natural nanoclay into modified nanoclay augments the toxic effect of natural nanoclay on aquatic invertebrates. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 197:110602. [PMID: 32315785 DOI: 10.1016/j.ecoenv.2020.110602] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 04/03/2020] [Accepted: 04/05/2020] [Indexed: 06/11/2023]
Abstract
There is much interest in converting natural nanoclay into modified forms for a variety of applications. Aquatic organisms have been exposed to natural nanoclay throughout their entire evolutionary history, but concerns have been raised about the effects of modified nanoclay on aquatic organisms. We investigated the potential toxicity of a natural nanoclay (Na+ montmorillonite) and two modified nanoclays (Cloisite® 30B and NovaclayTM) on survivorship and body growth of Daphnia magna and Chironomus dilutus. Natural nanoclay had no harmful effect on C. dilutus but reduced the survival (~1mgL-1) and body growth (~100 mgL-1) of D. magna. NovaclayTM had no harmful effects on C. dilutus or the body growth of D. magna but an intermediate concentration (1 mgL-1) caused a stronger reduction in D. magna survival during chronic exposure than did natural nanoclay. Cloisite® 30B adversely affected D. magna survival at concentrations as low as 0.01 mgL-1 and nearly all D. magna died when exposed to concentrations of Cloisite® 30B that exceeded 10 mgL-1 during acute exposure and 1 mgL-1 during chronic exposure. Though Cloisite® 30B appeared to have no effect on the body growth of surviving D. magna, Cloisite® 30B reduced C. dilutus body growth (100 mgL-1). Cloisite® 30B likely has higher toxic effects due to the presence of quaternary ammonium compounds and/or particle stability. Our work demonstrates that natural nanoclay has harmful effects on aquatic animals and that the different ways of converting natural nanoclay into different types of modified nanoclays augments the toxic effect of nanoclay to differing degrees.
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Affiliation(s)
- S C M C Tullio
- Department of Biology, East Carolina University, Greenville, NC, USA.
| | - D R Chalcraft
- East Carolina University, 1000 E 5th Street, N108 Howell Science Building, Greenville, NC, 27834, USA
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15
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Abdel-Khalek AA, Morsy K, Shati A. Comparative Assessment of Genotoxic Impacts Induced by Zinc Bulk- and Nano-Particles in Nile tilapia, Oreochromis niloticus. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 104:366-372. [PMID: 32020242 DOI: 10.1007/s00128-020-02799-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 01/22/2020] [Indexed: 06/10/2023]
Abstract
Fish were separately exposed to 1/2 LC50/96 h values of bulk-Zn and nano-Zn for 7, 14, and 28 days. The induction of micronuclei (MN) and other eight nuclear abnormalities in erythrocytes showed marked time and size dependence. The frequencies of all nuclear anomalies were progressively elevated (p < 0.05) with increasing the time of exposure to both bulk-Zn and nano-Zn. Throughout the study periods, fish exposed to nano-Zn showed the maximum elevation in all studied nuclear anomalies. Based on the fragmented DNA values, both Zn forms induced tissue-specific DNA damage as following gills > liver > muscles. Moreover, nano-Zn exposed groups revealed a maximum percentage of DNA damage among all studied groups, especially after 14 days. The percentage of DNA damage was decreased in all tissues on the 28th day, which reflected the presence of an effective repair mechanism. Finally, nano-Zn exhibited more genotoxic effects than that of its bulk counterparts.
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Affiliation(s)
| | - Kareem Morsy
- Biology Department, College of Science, King Khalid University, Abha, 61421, Saudi Arabia
| | - Ali Shati
- Biology Department, College of Science, King Khalid University, Abha, 61421, Saudi Arabia
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16
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Nogueira DJ, Vaz VP, Neto OS, Silva MLND, Simioni C, Ouriques LC, Vicentini DS, Matias WG. Crystalline phase-dependent toxicity of aluminum oxide nanoparticles toward Daphnia magna and ecological risk assessment. ENVIRONMENTAL RESEARCH 2020; 182:108987. [PMID: 31812936 DOI: 10.1016/j.envres.2019.108987] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 11/29/2019] [Accepted: 11/29/2019] [Indexed: 05/23/2023]
Abstract
Aluminum oxide nanoparticles (Al2O3 NPs) can be found in different crystalline phases, and with the emergence of nanotechnology there has been a rapid increase in the demand for Al2O3 NPs in different engineering areas and for consumer products. However, a careful evaluation of the potential environmental and human health risks is required to assess the implications of the release of Al2O3 NPs into the environment. Thus, the objective of this study was to investigate the toxicity of two crystalline phases of Al2O3 NPs, alpha (α-Al2O3 NPs) and eta (η-Al2O3 NPs), toward Daphnia magna and evaluate the risk to the aquatic ecology of Al2O3 NPs with different crystalline phases, based on a probabilistic approach. Different techniques were used for the characterization of the Al2O3 NPs. The toxicity toward Daphnia magna was assessed based on multiple toxicological endpoints, and the probabilistic species sensitivity distribution (PSSD) was used to estimate the risk of Al2O3 NPs to the aquatic ecology. The results obtained verify the toxic potential of the NPs toward D. magna even in sublethal concentrations, with a more pronounced effect being observed for η-Al2O3 NPs. The toxicity is associated with an increase in the reactive oxygen species (ROS) content and deregulation of antioxidant enzymatic/non-enzymatic enzymes (CAT, SOD and GSH). In addition, changes in MDA levels were observed, indicating that D. magna was under oxidative stress. The most prominent chronic toxic effects were observed in the organisms exposed to η-Al2O3 NPs, since the lowest LOEC was 3.12 mg/L for all parameters, while for α-Al2O3 NPs the lowest LOEC was 6.25 mg/L for longevity, growth and reproduction. However, the risk assessment results indicate that, based on a probabilistic approach, Al2O3 NPs (alpha, gamma, delta, eta and theta) only a very limited risk to organisms in surface waters.
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Affiliation(s)
- Diego José Nogueira
- Laboratory of Environmental Toxicology, Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil
| | - Vitor Pereira Vaz
- Laboratory of Environmental Toxicology, Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil
| | - Oswaldo Savoldi Neto
- Laboratory of Environmental Toxicology, Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil
| | - Marlon Luiz Neves da Silva
- Laboratory of Environmental Toxicology, Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil
| | - Carmen Simioni
- Laboratory of Plant Cell Biology, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, Florianópolis, SC, 88049-900, Brazil
| | - Luciane Cristina Ouriques
- Laboratory of Plant Cell Biology, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, Florianópolis, SC, 88049-900, Brazil
| | - Denice Shulz Vicentini
- Laboratory of Environmental Toxicology, Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil
| | - William Gerson Matias
- Laboratory of Environmental Toxicology, Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil.
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Blinova I, Muna M, Heinlaan M, Lukjanova A, Kahru A. Potential Hazard of Lanthanides and Lanthanide-Based Nanoparticles to Aquatic Ecosystems: Data Gaps, Challenges and Future Research Needs Derived from Bibliometric Analysis. NANOMATERIALS 2020; 10:nano10020328. [PMID: 32075069 PMCID: PMC7075196 DOI: 10.3390/nano10020328] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/09/2020] [Accepted: 02/10/2020] [Indexed: 12/16/2022]
Abstract
Lanthanides (Ln), applied mostly in the form of nanoparticles (NPs), are critical to emerging high-tech and green energy industries due to their distinct physicochemical properties. The resulting anthropogenic input of Ln and Ln-based NPs into aquatic environment might create a problem of emerging contaminants. Thus, information on the biological effects of Ln and Ln-based NPs is urgently needed for relevant environmental risk assessment. In this mini-review, we made a bibliometric survey on existing scientific literature with the main aim of identifying the most important data gaps on Ln and Ln-based nanoparticles' toxicity to aquatic biota. We report that the most studied Ln for ecotoxicity are Ce and Ln, whereas practically no information was found for Nd, Tb, Tm, and Yb. We also discuss the challenges of the research on Ln ecotoxicity, such as relevance of nominal versus bioavailable concentrations of Ln, and point out future research needs (long-term toxicity to aquatic biota and toxic effects of Ln to bottom-dwelling species).
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Affiliation(s)
- Irina Blinova
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Tallinn 12618, Estonia; (I.B.); (M.M.); (M.H.); (A.L.)
| | - Marge Muna
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Tallinn 12618, Estonia; (I.B.); (M.M.); (M.H.); (A.L.)
| | - Margit Heinlaan
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Tallinn 12618, Estonia; (I.B.); (M.M.); (M.H.); (A.L.)
| | - Aljona Lukjanova
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Tallinn 12618, Estonia; (I.B.); (M.M.); (M.H.); (A.L.)
| | - Anne Kahru
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Tallinn 12618, Estonia; (I.B.); (M.M.); (M.H.); (A.L.)
- Estonian Academy of Sciences, Tallinn 10130, Kohtu 6, Estonia
- Correspondence: ; Tel.: +372-6398373
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18
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Lekamge S, Ball AS, Shukla R, Nugegoda D. The Toxicity of Nanoparticles to Organisms in Freshwater. REVIEWS OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 248:1-80. [PMID: 30413977 DOI: 10.1007/398_2018_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Nanotechnology is a rapidly growing industry yielding many benefits to society. However, aquatic environments are at risk as increasing amounts of nanoparticles (NPs) are contaminating waterbodies causing adverse effects on aquatic organisms. In this review, the impacts of environmental exposure to NPs, the influence of the physicochemical characteristics of NPs and the surrounding environment on toxicity and mechanisms of toxicity together with NP bioaccumulation and trophic transfer are assessed with a focus on their impacts on bacteria, algae and daphnids. We identify several gaps which need urgent attention in order to make sound decisions to protect the environment. These include uncertainty in both estimated and measured environmental concentrations of NPs for reliable risk assessment and for regulating the NP industry. In addition toxicity tests and risk assessment methodologies specific to NPs are still at the research and development stage. Also conflicting and inconsistent results on physicochemical characteristics and the fate and transport of NPs in the environment suggest the need for further research. Finally, improved understanding of the mechanisms of NP toxicity is crucial in risk assessment of NPs, since conventional toxicity tests may not reflect the risks associated with NPs. Behavioural effects may be more sensitive and would be efficient in certain situations compared with conventional toxicity tests due to low NP concentrations in field conditions. However, the development of such tests is still lacking, and further research is recommended.
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Affiliation(s)
- Sam Lekamge
- Ecotoxicology Research Group, Centre for Environmental Sustainability and Remediation, School of Science, RMIT University, Bundoora, VIC, Australia.
| | - Andrew S Ball
- Centre for Environmental Sustainability and Remediation, School of Science, RMIT University, Bundoora, VIC, Australia
| | - Ravi Shukla
- Nanobiotechnology Research Laboratory, RMIT University, Melbourne, VIC, Australia
| | - Dayanthi Nugegoda
- Ecotoxicology Research Group, Centre for Environmental Sustainability and Remediation, School of Science, RMIT University, Bundoora, VIC, Australia
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19
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Castro GB, Bernegossi AC, Felipe MC, Corbi JJ. Is the development of Daphnia magna neonates affected by short-term exposure to polyethylene microplastics? JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2020; 55:935-946. [PMID: 32362232 DOI: 10.1080/10934529.2020.1756656] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The study presents responses of D. magna newborns exposed during 96 h to polyethylene microplastics (MP) of size 40-48 μm in the concentrations of 20; 40; 80; 160 and 320 mg/L. The experimental design consisted of two exposure scenarios: the first group was fed at the beginning and after 48 h (3x10-5 cells/mL of Raphidocelis subcaptata and fermented solution) and the second group was not fed as an additional stressor. The mobility of the organisms was not significantly affected in the presence of microplastics for both exposure groups. Nevertheless, the qualitative analysis showed that neonates promptly ingested microplastics in the first 24 h of the test, independently of the treatment. Polyethylene microplastics did not influence the molting process, however, significant differences were observed between the number of molts of the exposure without feed and with feed in 24 h (p = 0.0007), 48 h (p = 2.4 x 10-10), 72 h (p = 3.6 x 10-10) and 96 h (p = 0.003). The final body length of D. magna also showed that the food administration model in the tests contributes to the differentiation in responses.
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Affiliation(s)
- Gleyson B Castro
- Department of Hydraulic and Sanitation, Ecology of Aquatic Environments Laboratory, São Carlos School of Engineering, University of São Paulo, São Carlos, SP, Brazil
| | - Aline C Bernegossi
- Department of Hydraulic and Sanitation, Ecology of Aquatic Environments Laboratory, São Carlos School of Engineering, University of São Paulo, São Carlos, SP, Brazil
| | - Mayara C Felipe
- Department of Hydraulic and Sanitation, Ecology of Aquatic Environments Laboratory, São Carlos School of Engineering, University of São Paulo, São Carlos, SP, Brazil
| | - Juliano J Corbi
- Department of Hydraulic and Sanitation, Ecology of Aquatic Environments Laboratory, São Carlos School of Engineering, University of São Paulo, São Carlos, SP, Brazil
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20
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Lee JA, Yeo MK, Kim SS. Hydra protein reduces the toxicity of Ag–PVP nanoparticles in a 3D A549 cell line. Mol Cell Toxicol 2019. [DOI: 10.1007/s13273-019-00061-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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21
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Jenifer AA, Malaikozhundan B, Vijayakumar S, Anjugam M, Iswarya A, Vaseeharan B. Green Synthesis and Characterization of Silver Nanoparticles (AgNPs) Using Leaf Extract of Solanum nigrum and Assessment of Toxicity in Vertebrate and Invertebrate Aquatic Animals. J CLUST SCI 2019. [DOI: 10.1007/s10876-019-01704-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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22
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Hudson ML, Costello DM, Daley JM, Burton GA. Species-Specific (Hyalella azteca and Lymnea stagnalis) Dietary Accumulation of Gold Nano-particles Associated with Periphyton. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2019; 103:255-260. [PMID: 31062039 DOI: 10.1007/s00128-019-02620-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 04/16/2019] [Indexed: 06/09/2023]
Abstract
Ecological effects of gold nano-particles (AuNP) are examined due to growing use in consumer and industrial materials. This study investigated uptake and movement of AuNPs through an aquatic food chain. Simple (single-species) and diverse (multi-species) periphyton communities were exposed to AuNP (0, 100, 500 µg L-1 treatments). AuNP quickly aggregated and precipitated from the water column, suggesting it is an insignificant route of AuNP exposure even at elevated concentrations. Gold was measured in 100 and 500 µg L-1 periphyton treatments. Gold accumulation was similar between periphyton treatments, suggesting physical processes were important for AuNP basal accumulation. Hyalella azteca and Lymnea stagnalis whole body tissue analysis indicated gold accumulation may be attributed to different feeding mechanisms, general versus selective grazing, respectively. Results suggest trophic transfer of AuNP is organism specific and aggregation properties of AuNP are important when considering fate of nano-particles in the environment and movement through aquatic food webs.
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Affiliation(s)
- M L Hudson
- School for Environment and Sustainability, University of Michigan, Ann Arbor, MI, 48109, USA.
| | - D M Costello
- Department of Biological Sciences, Kent State University, Kent, OH, 44240, USA
| | - J M Daley
- LimnoTech, 501 Avis Drive, Ann Arbor, MI, 48108, USA
| | - G A Burton
- School for Environment and Sustainability, University of Michigan, Ann Arbor, MI, 48109, USA
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Zhang W, Ke S, Sun C, Xu X, Chen J, Yao L. Fate and toxicity of silver nanoparticles in freshwater from laboratory to realistic environments: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:7390-7404. [PMID: 30673947 DOI: 10.1007/s11356-019-04150-0] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 01/02/2019] [Indexed: 06/09/2023]
Abstract
The fate and risk assessment of silver nanoparticles (Ag NPs) is an important environmental health issue. The toxic effects, mechanisms, and modes of action of Ag NPs on aquatic organisms have been extensively determined in the laboratory. However, knowledge gaps and discrepancies exist between laboratory studies and realistic environmental research; such inconsistencies hinder the development of health and safety regulations. To bridge these gaps, this review summarizes how environmental conditions and the physicochemical properties of Ag NPs affect the inconsistent findings between laboratory studies and realistic environmental research. Moreover, this paper systematically reviews different toxic effects of Ag NPs in a realistic environment and compares these effects with those in the laboratory, which is helpful for assessing the environmental fate and risk of Ag NPs. The hazardous effects of Ag NPs on the whole aquatic ecosystem with low concentrations (μg L-1) and long-term periods (months to years) are detailed. Furthermore, two perspectives of future toxicity studies of Ag NPs in realistic freshwater environments are emphasized.
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Affiliation(s)
- Weicheng Zhang
- Collaborative Innovation Center of Water Security for the Water Source Region of Mid-line of the South-to-North Diversion Project of Henan Province, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China.
- Henan Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China.
| | - Song Ke
- Collaborative Innovation Center of Water Security for the Water Source Region of Mid-line of the South-to-North Diversion Project of Henan Province, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
- Henan Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
| | - Caiyun Sun
- Collaborative Innovation Center of Water Security for the Water Source Region of Mid-line of the South-to-North Diversion Project of Henan Province, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
- Henan Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
| | - Xin Xu
- Collaborative Innovation Center of Water Security for the Water Source Region of Mid-line of the South-to-North Diversion Project of Henan Province, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
- Henan Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
| | - Jibao Chen
- Collaborative Innovation Center of Water Security for the Water Source Region of Mid-line of the South-to-North Diversion Project of Henan Province, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
- Henan Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
| | - Lunguang Yao
- Collaborative Innovation Center of Water Security for the Water Source Region of Mid-line of the South-to-North Diversion Project of Henan Province, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China.
- Henan Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China.
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Wang P, Zhang B, Zhang H, He Y, Ong CN, Yang J. Metabolites change of Scenedesmus obliquus exerted by AgNPs. J Environ Sci (China) 2019; 76:310-318. [PMID: 30528022 DOI: 10.1016/j.jes.2018.05.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 05/17/2018] [Accepted: 05/17/2018] [Indexed: 06/09/2023]
Abstract
With increasing emission of silver nanoparticles (AgNPs) into the environment, it is important to understand the effects of ambient concentration of AgNPs. The biological effects of AgNPs on Scenedesmus obliquus, a ubiquitous freshwater microalgae, was evaluated. AgNPs exerted a minor inhibitory effect at low doses. Non-targeted metabolomic studies were conducted to understand and analyze the effect of AgNPs on algal cells from a molecular perspective. During the 48 hr of exposure to AgNPs, 30 metabolites were identified, of which nine had significant changes compared to the control group. These include d-galactose, sucrose, and d-fructose. These carbohydrates are involved in the synthesis and repair of cell walls. Glycine, an important constituent amino acid of glutathione, increased with AgNP exposure concentration increasing, likely to counteract an increased intracellular oxidative stress. These results provide a new understanding of the toxicity effects and mechanism of AgNPs. These metabolites could be useful biomarkers for future research, employed in the early detection of environmental risk from AgNPs.
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Affiliation(s)
- Pu Wang
- School of Environmental Science & Engineering, Shanghai Jiaotong University, Shanghai 200240, China; School of Municipal and Environmental Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China.
| | - Bo Zhang
- School of Environmental Science & Engineering, Shanghai Jiaotong University, Shanghai 200240, China.
| | - Hui Zhang
- NUS Environmental Research Institute, National University of Singapore, Singapore 117597, Singapore
| | - Yiliang He
- School of Environmental Science & Engineering, Shanghai Jiaotong University, Shanghai 200240, China
| | - Choon Nam Ong
- NUS Environmental Research Institute, National University of Singapore, Singapore 117597, Singapore
| | - Jun Yang
- School of Municipal and Environmental Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
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25
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Nam SH, An YJ. Size- and shape-dependent toxicity of silver nanomaterials in green alga Chlorococcum infusionum. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 168:388-393. [PMID: 30396135 DOI: 10.1016/j.ecoenv.2018.10.082] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 10/16/2018] [Accepted: 10/18/2018] [Indexed: 06/08/2023]
Abstract
Silver nanomaterials (AgNMs) of different shapes and sizes are potentially toxic to aquatic organisms. However, studies on the toxicity of AgNMs and on their shape-dependent effects on algae are scarce. The present study evaluated the effects of three AgNMs (silver nanospheres, AgNPs; silver nanowires, AgNWs; silver nanoplates, AgPLs) with different shapes coated with polyvinylpyrrolidone on the growth and photosynthetic performance of an alga, Chlorococcum infusionum. We used growth measurements and determined the photosynthetic parameters based on chlorophyll fluorescence transients in the algal cells exposed to different concentrations of the three AgNMs. The effective concentrations at 50% (EC50) of AgNPs, AgNWs, and AgPLs were calculated to be 0.1, 0.045, and 0.021 mg/L, respectively. The results showed that the toxicity of AgNMs in C. infusionum was in the order, AgPLs (40 nm diameter) > AgNWs (21,000 nm length × 42 nm diameter) > AgNPs (57 nm diameter), based on the decrease in growth and three photosynthetic activities. We propose that the toxic potential of AgNMs is primarily dependent on their diameter and secondarily on their shape. Overall, this study provides, for the first time, a comparison of the growth and photosynthetic activities of C. infusionum exposed to AgNMs of three different shapes.
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Affiliation(s)
- Sun-Hwa Nam
- Department of Environmental Health Science, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Youn-Joo An
- Department of Environmental Health Science, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea.
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26
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Abramenko N, Demidova TB, Krutyakov YA, Zherebin PM, Krysanov EY, Kustov LM, Peijnenburg W. The effect of capping agents on the toxicity of silver nanoparticles to Danio rerio embryos. Nanotoxicology 2019; 13:1-13. [DOI: 10.1080/17435390.2018.1498931] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- N. Abramenko
- N. D. Zelinsky Institute of Organic Chemistry, Moscow, Russia
- Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - T. B. Demidova
- A. N. Severtsov Institute of Ecology and Evolution, Moscow, Russia
| | - Yu. A. Krutyakov
- Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
- National Research Center “Kurchatov Institute”, Moscow, Russia
| | - P. M. Zherebin
- Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - E. Y. Krysanov
- A. N. Severtsov Institute of Ecology and Evolution, Moscow, Russia
| | - L. M. Kustov
- N. D. Zelinsky Institute of Organic Chemistry, Moscow, Russia
- Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
- National University of Science and Technology MISiS, Moscow, Russia
| | - W. Peijnenburg
- Institute of Environmental Sciences (CML), Leiden University, Leiden, The Netherlands
- National Institute of Public Health and the Environment, Center for Safety of Substances and Products, Bilthoven, The Netherlands
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27
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Wang P, Ng QX, Zhang H, Zhang B, Ong CN, He Y. Metabolite changes behind faster growth and less reproduction of Daphnia similis exposed to low-dose silver nanoparticles. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 163:266-273. [PMID: 30056340 DOI: 10.1016/j.ecoenv.2018.07.080] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 07/18/2018] [Accepted: 07/20/2018] [Indexed: 06/08/2023]
Abstract
With increasing presence of silver nanoparticles (AgNPs) into the environment, the chronic and low-dose effects of AgNPs are of vital concern. This study evaluated chronic physiological effects of AgNPs on Daphnia similis, which were exposed to two ambient encountered concentrations (0.02 and 1 ppb) of AgNPs for 21 days. It was observed that the low-dose AgNPs stimulated a significant increase in average length/dry mass, but inhibited reproduction compared to control specimens. Non-targeted metabolomics based on liquid chromatography-quadrupole-time of flight-mass spectrometry (LC-QTOFMS-MS) and gas chromatograph-quadrupole time of flight mass spectrometry (GC-QTOF-MS) were utilized to elucidate the underlying molecular mechanisms of these responses. Forty one metabolites were identified, including 18 significantly-changed metabolites, suggesting up regulation in protein digestion and absorption (amino acids, such as isoleucine, tryptophan, lysine, leucine, valine, aspartic acid, threonine, tyrosine) and down regulation of lipid related metabolism (fatty acids, such as arachidonic acid, stearidonic acid, linoelaidic acid and eicosapentaenoic acid) were key events in these responses. The increase in these amino acid contents explains the accelerated growth of D. similis from the metabolic pathway of aminoacyl-tRNA biosynthesis. Down regulation of fatty acid contents corresponds to the observed drop in the reproduction rate considering the fatty acid biological enzymatic reaction pathways. Significant changes in metabolites provided a renewed mechanistic understanding of low concentration chronic toxicity of AgNP toxicity on D. similis.
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Affiliation(s)
- Pu Wang
- School of Environmental Science & Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; School of Municipal and Environmental Engineering, Lanzhou Jiaotong University, 88 Anning Road, Lanzhou 730070, China
| | - Qin Xiang Ng
- Yong Loo Lin School of Medicine, National University of Singapore, 117597, Singapore
| | - Hui Zhang
- NUS Environmental Research Institute, National University of Singapore, 117597, Singapore
| | - Bo Zhang
- School of Environmental Science & Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
| | - Choon Nam Ong
- NUS Environmental Research Institute, National University of Singapore, 117597, Singapore
| | - Yiliang He
- School of Environmental Science & Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
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28
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Novak S, Jemec Kokalj A, Hočevar M, Godec M, Drobne D. The significance of nanomaterial post-exposure responses in Daphnia magna standard acute immobilisation assay: Example with testing TiO 2 nanoparticles. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 152:61-66. [PMID: 29407783 DOI: 10.1016/j.ecoenv.2018.01.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 12/11/2017] [Accepted: 01/03/2018] [Indexed: 06/07/2023]
Abstract
One of the most widely used aquatic standarized tests for the toxicity screening of chemicals is the acute toxicity test with the freshwater crustacean Daphnia magna, which has also been applied in the toxicity screening of manufactured nanoparticles (NPs). However, in the case of non-soluble NPs most of the results of this test have showed no effect. The aim of the work presented here was to modify the standardized test by the least possible extent to make it more sensitive for non-soluble particles. The standard acute immobilisation assay with daphnids was modified by prolonging the exposure period and by measuring additional endpoints. Daphnids were exposed to TiO2 NPs in a standard acute test (48h of exposure), a standard acute test (48h of exposure) followed by 24h recovery period in clean medium or a prolonged exposure in the NPs solutions totaling 72h. Together with immobility, the adsorption of NPs to body surfaces was also observed as an alternative measure of the NPs effects. Our results showed almost no effect of TiO2 NPs on D. magna after the 48h standard acute test, while immobility was increased when the exposure period to TiO2 NPs was prolonged from 48h to 72h. Even when daphnids were transferred to clean medium for additional 24h after 48h of exposure to TiO2 NPs the immobility increased. We conclude that by transferring the daphnids to clean medium at the end of the 48h exposure to TiO2 NPs, the delayed effects of the tested material can be seen. This methodological step could improve the sensitivity of D. magna test as a model in nanomaterial environmental risk assessment.
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Affiliation(s)
- Sara Novak
- Department of Biology, Biotechnical Faculty, University of Ljubljana, 111, Jamnikarjeva 101,1000 Ljubljana, Slovenia.
| | - Anita Jemec Kokalj
- Department of Biology, Biotechnical Faculty, University of Ljubljana, 111, Jamnikarjeva 101,1000 Ljubljana, Slovenia.
| | - Matej Hočevar
- Institute of Metals and Technology, Lepi pot 11, 1000 Ljubljana, Slovenia.
| | - Matjaž Godec
- Institute of Metals and Technology, Lepi pot 11, 1000 Ljubljana, Slovenia.
| | - Damjana Drobne
- Department of Biology, Biotechnical Faculty, University of Ljubljana, 111, Jamnikarjeva 101,1000 Ljubljana, Slovenia.
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29
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Abramenko NB, Demidova TB, Abkhalimov ЕV, Ershov BG, Krysanov EY, Kustov LM. Ecotoxicity of different-shaped silver nanoparticles: Case of zebrafish embryos. JOURNAL OF HAZARDOUS MATERIALS 2018; 347:89-94. [PMID: 29291521 DOI: 10.1016/j.jhazmat.2017.12.060] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 12/20/2017] [Accepted: 12/21/2017] [Indexed: 05/27/2023]
Abstract
As the worldwide application of silver nanomaterials in commercial products increases every year, and concern about the environmental risks of such nanoparticles also grows. A clear understanding of how different characteristics of nanoparticles contribute in their toxic behavior to organisms are imperative for predicting and control nanotoxicity. Within our research, we investigated the toxic effect of two types of silver nanoparticles (spherical and flat Ag nanoparticles) on zebrafish (Danio rerio) embryos. Particular interest was paid to proper characterization of Ag nanoparticles initially and during the experiment. A proper test medium was found and used for ecotoxicity evaluation. The behavior of flat silver nanoparticles with respect to embryos of zebrafish was analyzed and compared to the ecotoxicity of silver ionic form (AgNO3). Both types of nanoparticles showed a more pronounced toxic effect to Danio rerio embryos than silver ions (AgNO3), while silver nanoplates were more harmful than Ag nanospheres. While previous investigations showed that toxicity of Ag nanoparticles can be explained by the presence of Ag+ in solution of silver nanoparticles, our results demonstrate that the harmful effects of nanosilver may be associated with silver nanoparticles themselves than with ionic silver released into solution.
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Affiliation(s)
- Natalia B Abramenko
- N.D. Zelinsky Institute of Organic Chemistry, 119991, Leninsky Prospect, 47, Moscow, Russia; National Science and Technology University MISiS, 119071, Leninsky Prospekt 4, Moscow, Russia
| | - Tatiana B Demidova
- A.N. Severtsov Institute of Ecology and Evolution, 119071, Leninsky Prospect, 33, Moscow, Russia
| | - Еvgeny V Abkhalimov
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry RAS, 119071, Leninsky Prospect, 31-4, Moscow, Russia.
| | - Boris G Ershov
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry RAS, 119071, Leninsky Prospect, 31-4, Moscow, Russia
| | - Eugene Yu Krysanov
- A.N. Severtsov Institute of Ecology and Evolution, 119071, Leninsky Prospect, 33, Moscow, Russia
| | - Leonid M Kustov
- N.D. Zelinsky Institute of Organic Chemistry, 119991, Leninsky Prospect, 47, Moscow, Russia; National Science and Technology University MISiS, 119071, Leninsky Prospekt 4, Moscow, Russia.
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30
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Hu Y, Chen X, Yang K, Lin D. Distinct toxicity of silver nanoparticles and silver nitrate to Daphnia magna in M4 medium and surface water. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 618:838-846. [PMID: 29054648 DOI: 10.1016/j.scitotenv.2017.08.222] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Revised: 08/20/2017] [Accepted: 08/21/2017] [Indexed: 06/07/2023]
Abstract
Toxicity of silver nanoparticles (AgNPs) has been studied in various culture media. However, these media notably differ from the natural aquatic system, thus the conclusions may be inapplicable for real environment condition. The toxicity and its underlying mechanism of AgNPs in surface waters warrant more investigations. This study investigated the acute toxicity, chronic toxicity, bioaccumulation, and alga-daphnia food chain transfer of citrate-coated AgNPs (C-AgNPs) and Ag+ (from AgNO3) to D. magna in a culture medium (M4) and a surface water sample. Results show that the acute toxicity in the surface water was significantly lower than that in the M4 medium and the toxicity of Ag+ was greatly higher than that of C-AgNPs. The 48h median effect concentration (EC50) of C-AgNPs to D. magna in the M4 medium and the surface water was 110±9.3μg/L and 270±26μg/L, respectively, while that of Ag+ was 1.8±0.7μg/L and 8.0±0.6μg/L, respectively. The released Ag+ contributed to but not dominated the acute toxicity of C-AgNPs. At the EC50 of C-AgNPs, the contribution of released Ag+ was 35.7% and 28.0% to the apparent nanotoxicity in the M4 medium and the surface water sample, respectively. The chronic toxicity of C-AgNPs and Ag+ was also lower in the surface water sample than in the M4 medium as indicated by the significantly higher survival of daphnia in the surface water during the 21d exposure. The daphnia took up less but depurated more Ag in the surface water than in the M4 medium, which could account for the lower toxicity in the surface water. Biological magnification of Ag through the alga-daphnia food chain was not observed. These findings will be helpful for assessing the environmental risk of AgNPs and understanding the mechanism of nanotoxcity.
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Affiliation(s)
- Yi Hu
- Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Xiangjie Chen
- Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Kun Yang
- Department of Environmental Science, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Zhejiang University, Hangzhou 310058, China
| | - Daohui Lin
- Department of Environmental Science, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Zhejiang University, Hangzhou 310058, China.
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31
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Lv X, Yang Y, Tao Y, Jiang Y, Chen B, Zhu X, Cai Z, Li B. A mechanism study on toxicity of graphene oxide to Daphnia magna: Direct link between bioaccumulation and oxidative stress. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 234:953-959. [PMID: 29665635 DOI: 10.1016/j.envpol.2017.12.034] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 11/04/2017] [Accepted: 12/10/2017] [Indexed: 06/08/2023]
Abstract
Graphene oxide (GO) possesses versatile applicability and high hydrophilicity, thus may have frequent contact with aquatic organisms. However, the ecological risks of GO in aquatic ecosystems remain largely unexplored currently. This study evaluated the comprehensive toxicological effects of GO on Daphnia magna, a key species in fresh water ecosystem. The results revealed nonsevere acute toxicities, including immobility (72 h EC50: 44.3 mg/L) and mortality (72 h LC50: 45.4 mg/L), of GO on D. magna. To understand the underlying mechanism of GO exposure, changes in superoxide dismutase (SOD) and lipid peroxidation (LPO) of D. magna exposed to GO were correlated, which revealed elevated GO-mediated oxidative stress and damages, especially in the long-time and high-dose exposure groups. The observations of in vivo fluorescence labeled with 2', 7'-dichlorofluorescin further demonstrated that reactive oxygen species were concentrated in daphnia guts, which corresponded with the high bioaccumulation level (5 mg/L, 24 h body burden: 107.9 g/kg) of GO in daphnia guts. However, depuration of GO from daphnia was not difficult. Daphnia almost released all GO within 24 h after it was transferred to clean water. These results hence suggest that GO could accumulate and induce significant oxidative stress in the gut of D. magna, while D. daphnia can also relieve the acute toxicity by depurating GO.
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Affiliation(s)
- Xiaohui Lv
- Shenzhen Key Laboratory of Organic Pollution Prevention and Control, State Key Laboratory of Urban Water Resource and Environment of Harbin Institute of Technology (Shenzhen), 518055, China; Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China
| | - Yao Yang
- College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518055, China
| | - Yi Tao
- Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China
| | - Yuelu Jiang
- Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China
| | - Baiyang Chen
- Shenzhen Key Laboratory of Organic Pollution Prevention and Control, State Key Laboratory of Urban Water Resource and Environment of Harbin Institute of Technology (Shenzhen), 518055, China.
| | - Xiaoshan Zhu
- Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China.
| | - Zhonghua Cai
- Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China
| | - Bing Li
- Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China
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32
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Bownik A. Daphnia swimming behaviour as a biomarker in toxicity assessment: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 601-602:194-205. [PMID: 28551538 DOI: 10.1016/j.scitotenv.2017.05.199] [Citation(s) in RCA: 109] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2017] [Revised: 05/19/2017] [Accepted: 05/21/2017] [Indexed: 05/07/2023]
Abstract
Daphnia is a motile common model organism widely used in ecotoxicological testing. Although mortality and immobilisation are the main endpoints used for determination of toxicity, detection of subtle alterations induced by some chemicals particularly at lower levels may require more sensitive biomarkers. As a number of studies indicated that swimming behaviour may be altered by pesticides, nanoparticles, bacterial products or other chemicals, analysis of its various parameters is considered as a novel methodological approach for toxicity assessment and monitoring of water quality. This paper presents the current state of knowledge on the effects induced by various chemical compounds on the parameters of swimming behaviour of Daphnia and systems developed for its analysis. Advantages and limitations of swimming behaviour as a tool in toxicological studies are also discussed.
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Affiliation(s)
- Adam Bownik
- Department of Biological Basis of Animal Production, Faculty of Biology, Animal Science and Bioeconomy, University of Life Sciences, Akademicka Str 13, 20-950 Lublin, Poland.
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33
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Li H, Cui F, Liu Z, Li D. Transport, fate, and long-term impacts of metal oxide nanoparticles on the stability of an anaerobic methanogenic system with anaerobic granular sludge. BIORESOURCE TECHNOLOGY 2017; 234:448-455. [PMID: 28347965 DOI: 10.1016/j.biortech.2017.03.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 02/27/2017] [Accepted: 03/05/2017] [Indexed: 06/06/2023]
Abstract
The fate and long-term effect of different metal oxide (TiO2, CuO and ZnO) nanoparticles (NPs) on anaerobic granular sludge (AGS) was evaluated in an anaerobic methanogenic system. Operation stability and structural characteristics of the granules were compared, the metabolism changes in the microbial community were quantified, and NPs fate were investigated. CuO NPs had greatest toxic effect on AGS after extended exposure, whereas ZnO NPs benefited methanogenesis temporarily (no more than 5d). The inhibition on AGS caused by NPs varied due to the unique structure of AGS and different toxic mechanism. Structural changes of AGS provided new evidence that tested NPs have different toxicity.
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Affiliation(s)
- Huiting Li
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Fuyi Cui
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
| | - Zhiquan Liu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Dapeng Li
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
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34
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Azevedo SL, Holz T, Rodrigues J, Monteiro T, Costa FM, Soares AMVM, Loureiro S. A mixture toxicity approach to predict the toxicity of Ag decorated ZnO nanomaterials. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 579:337-344. [PMID: 27887838 DOI: 10.1016/j.scitotenv.2016.11.095] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 10/28/2016] [Accepted: 11/15/2016] [Indexed: 05/24/2023]
Abstract
Nanotechnology is a rising field and nanomaterials can now be found in a vast variety of products with different chemical compositions, sizes and shapes. New nanostructures combining different nanomaterials are being developed due to their enhancing characteristics when compared to nanomaterials alone. In the present study, the toxicity of a nanostructure composed by a ZnO nanomaterial with Ag nanomaterials on its surface (designated as ZnO/Ag nanostructure) was assessed using the model-organism Daphnia magna and its toxicity predicted based on the toxicity of the single components (Zn and Ag). For that ZnO and Ag nanomaterials as single components, along with its mixture prepared in the laboratory, were compared in terms of toxicity to ZnO/Ag nanostructures. Toxicity was assessed by immobilization and reproduction tests. A mixture toxicity approach was carried out using as starting point the conceptual model of Concentration Addition. The laboratory mixture of both nanomaterials showed that toxicity was dependent on the doses of ZnO and Ag used (immobilization) or presented a synergistic pattern (reproduction). The ZnO/Ag nanostructure toxicity prediction, based on the percentage of individual components, showed an increase in toxicity when compared to the expected (immobilization) and dependent on the concentration used (reproduction). This study demonstrates that the toxicity of the prepared mixture of ZnO and Ag and of the ZnO/Ag nanostructure cannot be predicted based on the toxicity of their components, highlighting the importance of taking into account the interaction between nanomaterials when assessing hazard and risk.
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Affiliation(s)
- S L Azevedo
- Department of Biology, CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - T Holz
- Physics Department, I3N, University of Aveiro, 3810-193 Aveiro, Portugal
| | - J Rodrigues
- Physics Department, I3N, University of Aveiro, 3810-193 Aveiro, Portugal
| | - T Monteiro
- Physics Department, I3N, University of Aveiro, 3810-193 Aveiro, Portugal
| | - F M Costa
- Physics Department, I3N, University of Aveiro, 3810-193 Aveiro, Portugal
| | - A M V M Soares
- Department of Biology, CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - S Loureiro
- Department of Biology, CESAM, University of Aveiro, 3810-193 Aveiro, Portugal.
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35
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Malev O, Trebše P, Piecha M, Novak S, Budič B, Dramićanin MD, Drobne D. Effects of CeO 2 Nanoparticles on Terrestrial Isopod Porcellio scaber: Comparison of CeO 2 Biological Potential with Other Nanoparticles. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2017; 72:303-311. [PMID: 28105488 DOI: 10.1007/s00244-017-0363-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 01/03/2017] [Indexed: 06/06/2023]
Abstract
Nano-sized cerium dioxide (CeO2) particles are emerging as an environmental issue due to their extensive use in automobile industries as fuel additives. Limited information is available on the potential toxicity of CeO2 nanoparticles (NPs) on terrestrial invertebrates through dietary exposure. In the present study, the toxic effects of CeO2 NPs on the model soil organism Porcellio scaber were evaluated. Nanotoxicity was assessed by monitoring the lipid peroxidation (LP) level and feeding rate after 14-days exposure to food amended with nano CeO2. The exposure concentration of 1000 μg of CeO2 NPs g-1 dry weight food for 14 days significantly increased both the feeding rate and LP. Thus, this exposure dose is considered the lowest observed effect dose. At higher exposure doses of 2000 and 5000 μg of CeO2 NPs g-1 dry weight food, NPs significantly decreased the feeding rate and increased the LP level. Comparative studies showed that CeO2 NPs are more biologically potent than TiO2 NPs, ZnO NPs, CuO NPs, CoFe2O4 NPs, and Ag NPs based on feeding rate using the same model organism and experimental setup. Based on comparative metal oxide NPs toxicities, the present results contribute to the knowledge related to the ecotoxicological effects of CeO2 NPs in terrestrial invertebrates exposed through feeding.
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Affiliation(s)
- Olga Malev
- University of Nova Gorica, 5000, Nova Gorica, Slovenia
| | | | | | - Sara Novak
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Večna pot 111, 1000, Ljubljana, Slovenia.
| | - Bojan Budič
- National Institute of Chemistry, 1001, Ljubljana, Slovenia
| | | | - Damjana Drobne
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Večna pot 111, 1000, Ljubljana, Slovenia
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36
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Armstead AL, Li B. Nanotoxicity: emerging concerns regarding nanomaterial safety and occupational hard metal (WC-Co) nanoparticle exposure. Int J Nanomedicine 2016; 11:6421-6433. [PMID: 27942214 PMCID: PMC5138053 DOI: 10.2147/ijn.s121238] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
As the number of commercial and consumer products containing engineered nanomaterials (ENMs) continually rises, the increased use and production of these ENMs presents an important toxicological concern. Although ENMs offer a number of advantages over traditional materials, their extremely small size and associated characteristics may also greatly enhance their toxic potentials. ENM exposure can occur in various consumer and industrial settings through inhalation, ingestion, or dermal routes. Although the importance of accurate ENM characterization, effective dosage metrics, and selection of appropriate cell or animal-based models are universally agreed upon as important factors in ENM research, at present, there is no “standardized” approach used to assess ENM toxicity in the research community. Of particular interest is occupational exposure to tungsten carbide cobalt (WC-Co) “dusts,” composed of nano- and micro-sized particles, in hard metal manufacturing facilities and mining and drilling industries. Inhalation of WC-Co dust is known to cause “hard metal lung disease” and an increased risk of lung cancer; however, the mechanisms underlying WC-Co toxicity, the inflammatory disease state and progression to cancer are poorly understood. Herein, a discussion of ENM toxicity is followed by a review of the known literature regarding the effects of WC-Co particle exposure. The risk of WC-Co exposure in occupational settings and the updates of in vitro and in vivo studies of both micro- and nano-WC-Co particles are discussed.
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Affiliation(s)
- Andrea L Armstead
- Department of Orthopaedics, School of Medicine; School of Pharmacy, West Virginia University
| | - Bingyun Li
- Department of Orthopaedics, School of Medicine; School of Pharmacy, West Virginia University; Mary Babb Randolph Cancer Center, Morgantown, WV, USA
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Sørensen SN, Holten Lützhøft HC, Rasmussen R, Baun A. Acute and chronic effects from pulse exposure of D. magna to silver and copper oxide nanoparticles. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 180:209-217. [PMID: 27736693 DOI: 10.1016/j.aquatox.2016.10.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 09/13/2016] [Accepted: 10/02/2016] [Indexed: 06/06/2023]
Abstract
Aquatic toxicity testing of nanoparticles (NPs) is challenged by their dynamic behavior in test suspensions. The resulting difficulties in controlling and characterizing exposure concentrations are detrimental to the generation of concentration-response data needed for hazard identification of NPs. This study explores the applicability of short-term (1, 2 and 3h) pulse exposures as means to keep the exposure stable and at the same time disclose acute and chronic effects of AgNPs and CuONPs in D. magna. Dissolution, agglomeration and sedimentation were found to have less influence on exposure concentrations during 1-3h pulses than for 24-48h continuous exposures. For AgNPs, preparation of test suspensions in medium 24h before toxicity testing (aging) increased stability during the short-term pulses. In pulse tests, organisms were exposed to the test materials, AgNPs and CuONPs for 1, 2 and 3h, and afterwards transferred to clean medium and observed for 48h (post-exposure period) for acute effects and for 21 d for chronic effects. AgNO3 and CuCl2 were used as reference materials for dissolved silver and copper, respectively. For all test materials, a 3h pulse caused comparable immobility in D. magna (observed after 48h post-exposure) as 24h continuous exposure, as evidenced by overlapping 95% confidence intervals of EC50-values. In the 21 d post-exposure period, no trends in mortality or body length were identified. AgNP and AgNO3 pulses had no effect on the number of moltings, days to first live offspring or cumulated number of offspring, but the number of offspring increased for AgNPs (3h pulse only). In contrast, CuONP and CuCl2 pulses decreased the number of moltings and offspring, and for CuONPs the time to first live offspring was prolonged. After CuONP exposures, the offspring production decreased more with increasing concentrations than for CuCl2 exposures when taking the measured dissolved copper into account. This indicates a nanoparticle-specific effect for CuONPs, possibly related to the CuONPs accumulated in the gut of D. magna during the pulse exposure. Pulse exposure is an environmentally relevant exposure scenario for NPs, which for AgNPs and CuONPs enables more stable exposures and cause acute immobility of D. magna comparable to continuous 24h exposures. Pulse exposure is likely relevant and applicable for other toxic and dissolving metal NPs, but this requires further research.
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Affiliation(s)
- Sara Nørgaard Sørensen
- Department of Environmental Engineering, Technical University of Denmark, Building 115, DK-2800 Kgs. Lyngby, Denmark.
| | | | - Rose Rasmussen
- Department of Environmental Engineering, Technical University of Denmark, Building 115, DK-2800 Kgs. Lyngby, Denmark
| | - Anders Baun
- Department of Environmental Engineering, Technical University of Denmark, Building 115, DK-2800 Kgs. Lyngby, Denmark
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Abdel-Khalek AA, Badran SR, Marie MAS. Toxicity evaluation of copper oxide bulk and nanoparticles in Nile tilapia, Oreochromis niloticus, using hematological, bioaccumulation and histological biomarkers. FISH PHYSIOLOGY AND BIOCHEMISTRY 2016; 42:1225-1236. [PMID: 26947705 DOI: 10.1007/s10695-016-0212-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Accepted: 02/22/2016] [Indexed: 06/05/2023]
Abstract
The increased industrial applications of nanoparticles (NPs) augment the possibility of their deposition into aquatic ecosystems and threatening the aquatic life. So, this study aimed to provide a comparable toxicological effects of nano-CuO and bulk CuO on a common freshwater fish, Oreochromis niloticus. Fish were exposed to two selected doses (1/10 and 1/20 of the LC50/96 h) of both nano-/bulk CuO for 30 days. Based on the studied hematological parameters (RBCs count, hemoglobin content and hematocrit%), the two selected concentrations of CuO in their nano- and bulk sizes were found to induce significant decrease in all studied parameters. But, nano-CuO-treated fish showed the maximum decrease in all recorded parameters among the all studied groups especially at the low concentration of 1/20 LC50/96 h. Hematological status was also confirmed using the calculated blood indices (MCV, MHC and MCHC). In case of bulk CuO-treated groups, the significant decrease in the studied hematological parameters was not followed by any change in MCV and MCH (normocytic anemia), while fish that exposed to NPs showed a significant increase in all calculated blood parameters reflecting erythrocytes swelling which is related to the intracellular osmotic disorders (macrocytic anemia). Regarding metal bioaccumulation factor, the results showed that CuO NPs had more efficiency to internalize fish tissues (liver, kidneys, gills, skin and muscle). The accumulation pattern of Cu metal was ensured by histopathological investigation of liver, kidneys and gills. The histopathological analysis revealed various alterations that varied between adaptation responses and permanent tissue damage.
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Affiliation(s)
- Amr A Abdel-Khalek
- Department of Zoology, Faculty of Science, Cairo University, Giza, Egypt.
| | - Shereen R Badran
- Department of Zoology, Faculty of Science, Cairo University, Giza, Egypt
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Sánchez-García L, Bolea E, Laborda F, Cubel C, Ferrer P, Gianolio D, da Silva I, Castillo J. Size determination and quantification of engineered cerium oxide nanoparticles by flow field-flow fractionation coupled to inductively coupled plasma mass spectrometry. J Chromatogr A 2016; 1438:205-15. [DOI: 10.1016/j.chroma.2016.02.036] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 02/10/2016] [Accepted: 02/10/2016] [Indexed: 11/29/2022]
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Biosynthesis of silver nanoparticles using a probiotic Bacillus licheniformis Dahb1 and their antibiofilm activity and toxicity effects in Ceriodaphnia cornuta. Microb Pathog 2016; 93:70-7. [PMID: 26802520 DOI: 10.1016/j.micpath.2016.01.014] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 01/18/2016] [Accepted: 01/19/2016] [Indexed: 11/22/2022]
Abstract
In the present study, we synthesized and characterized a probiotic Bacillus licheniformis cell free extract (BLCFE) coated silver nanoparticles (BLCFE-AgNPs). These BLCFE-AgNPs were characterized by UV-visible spectrophotometer, XRD, EDX, FTIR, TEM and AFM. A strong surface plasmon resonance centered at 422 nm in UV-visible spectrum indicates the formation of AgNPs. The XRD spectrum of silver nanoparticles exhibited 2θ values corresponding to the silver nanocrystal. TEM and AFM showed the AgNPs were spherical in shape within the range of 18.69-63.42 nm and the presence of silver was confirmed by EDX analysis. Light and Confocal Laser Scanning Microscope (CLSM) images showed a weak adherence and disintegrated biofilm formation of Vibrio parahaemolyticus Dav1 treated with BLCFE-AgNPs compared to control. This result suggests that BLCFE-AgNps may be used for the control of biofilm forming bacterial populations in the biomedical field. In addition, acute toxicity results concluded that BLCFE-AgNPs were less toxic to the fresh water crustacean Ceriodaphnia cornuta (50 μg/ml) when compared to AgNO3 (22 μg/ml). This study also reports a short term analysis (24 h) of uptake and depuration of BLCFE-AgNPs in C. cornuta.
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Kwak JI, Cui R, Nam SH, Kim SW, Chae Y, An YJ. Multispecies toxicity test for silver nanoparticles to derive hazardous concentration based on species sensitivity distribution for the protection of aquatic ecosystems. Nanotoxicology 2015; 10:521-30. [PMID: 26634622 DOI: 10.3109/17435390.2015.1090028] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
With increasing concerns about the release of silver nanoparticles (AgNPs) into the environment and the risks they pose to ecological and human health, a number of studies of AgNP toxicity to aquatic organisms have been conducted. USEPA and EU JRC have published risk assessment reports for AgNPs. However, most previous studies have focused on the adverse effects of AgNPs on individual species. Hazardous concentration (HC) of AgNPs for protection of aquatic ecosystems that are based on species sensitivity distributions (SSDs) have not yet been derived because sufficient data have not been available. In this study, we conducted multispecies toxicity tests, including acute assays using eight species from five different taxonomic groups (bacteria, algae, flagellates, crustaceans and fish) and chronic assays using six species from four different taxonomic groups (algae, flagellates, crustaceans and fish). Using the results of these assays, we used a SSD approach to derive an AgNP aquatic HC5 (Hazard concentrations at the 5% species) of 0.614 μg/L. To our knowledge, this is the first report of a proposed HC of AgNPs for the protection of aquatic ecosystems that is based on SSDs and uses chronic toxicity data.
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Affiliation(s)
- Jin Il Kwak
- a Department of Environmental Science , Konkuk University , Seoul , Korea
| | - Rongxue Cui
- a Department of Environmental Science , Konkuk University , Seoul , Korea
| | - Sun-Hwa Nam
- a Department of Environmental Science , Konkuk University , Seoul , Korea
| | - Shin Woong Kim
- a Department of Environmental Science , Konkuk University , Seoul , Korea
| | - Yooeun Chae
- a Department of Environmental Science , Konkuk University , Seoul , Korea
| | - Youn-Joo An
- a Department of Environmental Science , Konkuk University , Seoul , Korea
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Ulm L, Krivohlavek A, Jurašin D, Ljubojević M, Šinko G, Crnković T, Žuntar I, Šikić S, Vinković Vrček I. Response of biochemical biomarkers in the aquatic crustacean Daphnia magna exposed to silver nanoparticles. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:19990-19999. [PMID: 26296504 DOI: 10.1007/s11356-015-5201-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 08/10/2015] [Indexed: 06/04/2023]
Abstract
The proliferation of silver nanoparticle (AgNP) production and use owing to their antimicrobial properties justifies the need to examine the resulting environmental impacts. The discharge of biocidal nanoparticles to water bodies may pose a threat to aquatic species. This study evaluated the effects of citrate-coated AgNPs on the standardized test organism Daphnia magna Straus clone MBP996 by means of biochemical biomarker response. AgNP toxicity was compared against the toxic effect of Ag(+). The toxicity endpoints were calculated based upon measured Ag concentrations in exposure media. For AgNPs, the NOAEC and LOAEC values at 48 h were 5 and 7 μg Ag/L, respectively, while these values were 0.5 and 1 μg Ag/L, respectively, for Ag(+). The EC50 at 48 h was computed to be 12.4 ± 0.6 and 2.6 ± 0.1 μg Ag/L for AgNPs and Ag(+), respectively, with 95 % confidence intervals of 12.1-12.8 and 2.3-2.8 μg Ag/L, respectively. These results indicate significant less toxicity of AgNP compared to free Ag(+) ions. Five biomarkers were evaluated in Daphnia magna neonates after acute exposure to Ag(+) or AgNPs, including glutathione (GSH) level, reactive oxygen species (ROS) content, and catalase (CAT), acetylcholinesterase (AChE), and superoxide dismutase (SOD) activity. AgNPs induced toxicity and oxidative stress responses in D. magna neonates at tenfold higher concentrations than Ag. Biochemical methods revealed a clear increase in AChE activity, decreased ROS level, increased GSH level and CAT activity, but no significant changes in SOD activity. As Ag(+) may dissolve from AgNPs, these two types of Ag could act synergistically and produce a greater toxic response. The observed remarkably high toxicity of AgNPs (in the parts-per-billion range) to crustaceans indicates that these organisms are a vulnerable link in the aquatic food chain with regard to contamination by nanosilver. Graphical Abstract ᅟ.
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Affiliation(s)
- Lea Ulm
- Andrija Štampar Teaching Institute of Public Health, Mirogojska 16, 10 000, Zagreb, Croatia
| | - Adela Krivohlavek
- Andrija Štampar Teaching Institute of Public Health, Mirogojska 16, 10 000, Zagreb, Croatia
| | - Darija Jurašin
- Ruđer Bošković Institute, Bijenička cesta 54, 10 000, Zagreb, Croatia
| | - Marija Ljubojević
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10 000, Zagreb, Croatia
| | - Goran Šinko
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10 000, Zagreb, Croatia
| | - Tea Crnković
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića 1, 10 000, Zagreb, Croatia
| | - Irena Žuntar
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića 1, 10 000, Zagreb, Croatia
| | - Sandra Šikić
- Andrija Štampar Teaching Institute of Public Health, Mirogojska 16, 10 000, Zagreb, Croatia
| | - Ivana Vinković Vrček
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10 000, Zagreb, Croatia.
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Qin G, Xiong Y, Tang S, Zhao P, Doering JA, Beitel SC, Hecker M, Wang M, Liu H, Lu H, Du H. Impact of Predator Cues on Responses to Silver Nanoparticles in Daphnia carinata. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2015; 69:494-505. [PMID: 26044927 DOI: 10.1007/s00244-015-0165-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Accepted: 05/11/2015] [Indexed: 06/04/2023]
Abstract
The past decades have witnessed a boom in nanotechnology that has led to increasing production and application of silver nanoparticles (AgNPs) in the textile industry due to their antimicrobial properties. Increase in the manufacture and use of NPs inevitably has resulted in their increased release into aquatic environments resulting in the exposure of organisms living in these environments. Recently, the risk of exposure to NPs and the potential interaction with biological systems has received increasing attention. The present study investigated the potential effects of predator cues on the toxicity of environmentally relevant concentrations of AgNPs in Daphnia carinata at organismal and biochemical levels. The results of this study show that exposure to environmentally relevant concentrations of AgNPs can result in adverse effects on daphnids with 24- and 48-h LC50 values of 3.56 and 1.75 μg/L, respectively. Furthermore, significant inhibition of reproduction was observed at concentrations as low as 0.5 μg/L. Exposure to predator cues alone resulted in an increase in reproduction and inhibition of superoxide dismutase activity in daphnids. However, coexposure to predator cues interacted in an antagonistic manner with AgNPs with a 24-h LC50 value of 10.81 μg/L compared with 3.56 μg/L for AgNPs alone. In summary, AgNPs could pose risks to aquatic invertebrates at environmentally relevant concentrations. Interestingly, the presence of other factors, such as predator cues, moderated the effects of exposure to AgNPs. Therefore, there is a need to further investigate the potential interactions between NPs and biological factors that can modulate toxicity of NPs for application to the risk assessment of aquatic invertebrates.
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Affiliation(s)
- Guangqiu Qin
- Institute of Toxicology, Guangxi Center for Disease Prevention and Control, Nanning, 530028, China.
| | - Yunxia Xiong
- College of Biotechnology, Southwest University, Beibei, Chongqing, 400715, China
| | - Song Tang
- School of Environment and Sustainability, University of Saskatchewan, Saskatoon, SK, S7N 5B3, Canada
| | - Peng Zhao
- Institute of Toxicology, Guangxi Center for Disease Prevention and Control, Nanning, 530028, China
| | - Jon A Doering
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, S7N 5B3, Canada
| | - Shawn C Beitel
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, S7N 5B3, Canada
| | - Markus Hecker
- School of Environment and Sustainability, University of Saskatchewan, Saskatoon, SK, S7N 5B3, Canada
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK, S7N 5B3, Canada
| | - Mao Wang
- Department of Preventive Medicine, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, China
| | - Hongling Liu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, Jiangsu, China
| | - Haoliang Lu
- College of the Environment and Ecology, Xiamen University, Xiamen, 361102, Fujian, China
| | - Huamao Du
- College of Biotechnology, Southwest University, Beibei, Chongqing, 400715, China.
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Angel BM, Vallotton P, Apte SC. On the mechanism of nanoparticulate CeO2 toxicity to freshwater algae. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2015; 168:90-97. [PMID: 26461912 DOI: 10.1016/j.aquatox.2015.09.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Revised: 09/22/2015] [Accepted: 09/27/2015] [Indexed: 06/05/2023]
Abstract
The factors affecting the chronic (72-h) toxicity of three nanoparticulate (10-34nm) and one micron-sized form of CeO2 to the green alga, Pseudokirchneriella subcapitata were investigated. To characterise transformations in solution, hydrodynamic diameters (HDD) were measured by dynamic light scatter, zeta potential values by electrophoretic mobility, and dissolution by equilibrium dialysis. The protective effects of humic and fulvic dissolved organic carbon (DOC) on toxicity were also assessed. To investigate the mechanisms of algal toxicity, the CytoViva hyperspectral imaging system was used to visualise algal-CeO2 interactions in the presence and absence of DOC, and the role of reactive oxygen species (ROS) was investigated by 'switching off' ROS production using UV-filtered lighting conditions. The nanoparticulate CeO2 immediately aggregated in solution to HDDs measured in the range 113-193nm, whereas the HDD and zeta potential values were significantly lower in the presence of DOC. Negligible CeO2 dissolution over the time course of the bioassay ruled out potential toxicity from dissolved cerium. The nanoparticulate CeO2 concentration that caused 50% inhibition of algal growth rate (IC50) was in the range 7.6-28mg/L compared with 59mg/L for micron-sized ceria, indicating that smaller particles were more toxic. The presence of DOC mitigated toxicity, with IC50s increasing to greater than 100mg/L. Significant ROS were generated in the nanoparticulate CeO2 bioassays under normal light conditions. However, 'switching off' ROS under UV-filtered light conditions resulted in a similar IC50, indicating that ROS generation was not the toxic mechanism. The CytoViva imaging showed negligible sorption of nanoparticulate CeO2 to algal cells in the presence of DOC, and strong sorption in its absence, suggesting that this was the toxic mechanism. The results suggest that DOC in natural waters will coat CeO2 particles and mitigate toxicity to algal cells.
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Affiliation(s)
- Brad M Angel
- Centre for Environmental Contaminants Research, CSIRO Land and Water Flagship, Locked Bag 2007, Kirrawee, NSW 2232, Australia.
| | - Pascal Vallotton
- Digital Productivity Flagship, CSIRO, North Ryde, NSW 1670, Australia
| | - Simon C Apte
- Centre for Environmental Contaminants Research, CSIRO Land and Water Flagship, Locked Bag 2007, Kirrawee, NSW 2232, Australia
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Oleszczuk P, Jośko I, Skwarek E. Surfactants decrease the toxicity of ZnO, TiO2 and Ni nanoparticles to Daphnia magna. ECOTOXICOLOGY (LONDON, ENGLAND) 2015; 24:1923-32. [PMID: 26410374 PMCID: PMC4661184 DOI: 10.1007/s10646-015-1529-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/20/2015] [Indexed: 05/12/2023]
Abstract
The objective of the study was the estimation of the effect of surfactants on the toxicity of ZnO, TiO2 and Ni nanoparticles (ENPs) towards Daphnia magna. The effect of hexadecyltrimethylammonium bromide (CTAB), triton X-100 (TX100) and 4-dodecylbenzenesulfonic acid (SDBS) was tested. The Daphtoxkit F test (conforming to OECD Guideline 202 and ISO 6341) was applied for the toxicity testing. Both the surfactants and the ENPs were toxic to D. magna. The addition of ENPs to a solution of the surfactants caused a significant reduction of toxicity of ENPs. The range of reduction of the toxicity of the ENPs depended on the kind of the ENPs and their concentration in the solution, and also on the kind of surfactant. For nano-ZnO the greatest reduction of toxicity was caused by CTAB, while for nano-TiO2 the largest drop of toxicity was observed after the addition of TX100. In the case of nano-Ni, the effect of the surfactants depended on its concentration. Most probably the reduction of toxicity of ENPs in the presence of the surfactants was related with the formation of ENPs aggregates that inhibited the availability of ENPs for D. magna.
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Affiliation(s)
- Patryk Oleszczuk
- Department of Environmental Chemistry, Faculty of Chemistry, University of Maria Skłodowska-Curie, pl. M. Curie-Sklodowskiej 3, 20-031, Lublin, Poland.
| | - Izabela Jośko
- Institute of Plant Genetics, Breeding and Biotechnology, Faculty of Agrobioengineering, University of Life Sciences in Lublin, Akademicka 15, 20-069, Lublin, Poland
| | - Ewa Skwarek
- Department of Radiochemistry and Colloid Chemistry, Faculty of Chemistry, University of Maria Skłodowska-Curie, Lublin, Poland
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46
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Nanotechnology in cosmetics. Food Chem Toxicol 2015; 85:127-37. [DOI: 10.1016/j.fct.2015.06.020] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 06/24/2015] [Accepted: 06/25/2015] [Indexed: 11/19/2022]
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Gambardella C, Costa E, Piazza V, Fabbrocini A, Magi E, Faimali M, Garaventa F. Effect of silver nanoparticles on marine organisms belonging to different trophic levels. MARINE ENVIRONMENTAL RESEARCH 2015; 111:41-9. [PMID: 26065810 DOI: 10.1016/j.marenvres.2015.06.001] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Revised: 05/22/2015] [Accepted: 06/01/2015] [Indexed: 05/24/2023]
Abstract
Silver nanoparticles (Ag-NPs) are increasingly used in a wide range of consumer products and such an extensive use raises questions about their safety and environmental toxicity. We investigated the potential toxicity of Ag-NPs in the marine ecosystem by analyzing the effects on several organisms belonging to different trophic levels. Algae (Dunaliella tertiolecta, Skeletonema costatum), cnidaria (Aurelia aurita jellyfish), crustaceans (Amphibalanus amphitrite and Artemia salina) and echinoderms (Paracentrotus lividus) were exposed to Ag-NPs and different end-points were evaluated: algal growth, ephyra jellyfish immobilization and frequency of pulsations, crustaceans mortality and swimming behavior, and sea urchin sperm motility. Results showed that all the end-points were able to underline a dose-dependent effect. Jellyfish were the most sensitive species, followed by barnacles, sea urchins, green algae, diatoms and brine shrimps. In conclusion, Ag-NPs exposure can influence different trophic levels within the marine ecosystem.
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Affiliation(s)
| | - Elisa Costa
- CNR - ISMAR, Arsenale - Tesa 104, Castello 2737/F, 30122 Venezia, Italy
| | | | | | - Emanuele Magi
- DCCI, University of Genova, Via Dodecaneso 31, 16146 Genova, Italy
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Mackevica A, Skjolding LM, Gergs A, Palmqvist A, Baun A. Chronic toxicity of silver nanoparticles to Daphnia magna under different feeding conditions. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2015; 161:10-16. [PMID: 25661705 DOI: 10.1016/j.aquatox.2015.01.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 01/07/2015] [Accepted: 01/25/2015] [Indexed: 06/04/2023]
Abstract
Despite substantial information on the acute toxicity of silver nanoparticles (AgNP) to aquatic organisms, little is known about their potential chronic effects and the applicability of current test guidelines for testing nanomaterials. The purpose of this study was to study the influence of food availability on toxicity. This was done through a series of Daphnia magna 21-day reproduction tests (OECD 211) using 30 nm citric acid stabilized AgNP aimed at studying the influence of food abundance on the reproductive toxicity of AgNP in D. magna. The experiments were carried out as static renewal tests with exposure concentrations from 10 to 50 μg Ag/L, and test animals were fed green algae Pseudokirchneriella subcapitata in low and high food treatments. The endpoints recorded were survival, growth of parent animals and number of live neonates produced. Detrimental effects of AgNP on survival, growth and reproduction were observed in concentrations higher than 10 μg Ag/L, whereas the animals exposed to 10 μg Ag/L had larger body length and produced more offspring than controls at both food treatments. High food treatment resulted in higher animal survival, growth and reproduction compared to result found for low food treatment.
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Affiliation(s)
- Aiga Mackevica
- Technical University of Denmark, Department of Environmental Engineering, Miljøvej, Building 113, Kgs. Lyngby DK-2800, Denmark.
| | - Lars Michael Skjolding
- Technical University of Denmark, Department of Environmental Engineering, Miljøvej, Building 113, Kgs. Lyngby DK-2800, Denmark
| | - Andre Gergs
- Roskilde University, Department of Environmental, Social and Spatial Change, Universitetsvej 1, P.O. Box 260, Roskilde DK-4000, Denmark
| | - Annemette Palmqvist
- Roskilde University, Department of Environmental, Social and Spatial Change, Universitetsvej 1, P.O. Box 260, Roskilde DK-4000, Denmark
| | - Anders Baun
- Technical University of Denmark, Department of Environmental Engineering, Miljøvej, Building 113, Kgs. Lyngby DK-2800, Denmark
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Gehrke I, Geiser A, Somborn-Schulz A. Innovations in nanotechnology for water treatment. Nanotechnol Sci Appl 2015; 8:1-17. [PMID: 25609931 PMCID: PMC4294021 DOI: 10.2147/nsa.s43773] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Important challenges in the global water situation, mainly resulting from worldwide population growth and climate change, require novel innovative water technologies in order to ensure a supply of drinking water and reduce global water pollution. Against this background, the adaptation of highly advanced nanotechnology to traditional process engineering offers new opportunities in technological developments for advanced water and wastewater technology processes. Here, an overview of recent advances in nanotechnologies for water and wastewater treatment processes is provided, including nanobased materials, such as nanoadsorbents, nanometals, nanomembranes, and photocatalysts. The beneficial properties of these materials as well as technical barriers when compared with conventional processes are reported. The state of commercialization is presented and an outlook on further research opportunities is given for each type of nanobased material and process. In addition to the promising technological enhancements, the limitations of nanotechnology for water applications, such as laws and regulations as well as potential health risks, are summarized. The legal framework according to nanoengineered materials and processes that are used for water and wastewater treatment is considered for European countries and for the USA.
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Affiliation(s)
- Ilka Gehrke
- Fraunhofer Institute for Environmental, Safety and Energy Technology UMSICHT, Oberhausen, Germany
| | - Andreas Geiser
- Fraunhofer Institute for Environmental, Safety and Energy Technology UMSICHT, Oberhausen, Germany
| | - Annette Somborn-Schulz
- Fraunhofer Institute for Environmental, Safety and Energy Technology UMSICHT, Oberhausen, Germany
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Seitz F, Rosenfeldt RR, Storm K, Metreveli G, Schaumann GE, Schulz R, Bundschuh M. Effects of silver nanoparticle properties, media pH and dissolved organic matter on toxicity to Daphnia magna. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 111:263-70. [PMID: 25450943 DOI: 10.1016/j.ecoenv.2014.09.031] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 09/26/2014] [Accepted: 09/30/2014] [Indexed: 05/24/2023]
Abstract
Studies assessing the acute and chronic toxicity of silver nanoparticle (nAg) materials rarely consider potential implications of environmental variables. In order to increase our understanding in this respect, we investigated the acute and chronic effects of various nAg materials on Daphnia magna. Thereby, different nanoparticle size classes with a citrate coating (20-, ~30-, 60- as well as 100-nm nAg) and one size class without any coating (140 nm) were tested, considering at the same time two pH levels (6.5 and 8.0) as well as the absence or presence of dissolved organic matter (DOM; <0.1 or 8.0 mg total organic carbon/L). Results display a reduced toxicity of nAg in media with higher pH and the presence of DOM as well as increasing initial particle size, if similarly coated. This suggests that the associated fraction of Ag species <2 nm (including Ag(+)) is driving the nAg toxicity. This hypothesis is supported by normalizing the 48-h EC50-values to Ag species <2 nm, which displays comparable toxicity estimates for the majority of the nAg materials assessed. It may therefore be concluded that a combination of both the particle characteristics, i.e. its initial size and surface coating, and environmental factors trigger the toxicity of ion-releasing nanoparticles.
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Affiliation(s)
- Frank Seitz
- Institute for Environmental Sciences, Group of Ecotoxicology & Environment, University of Koblenz-Landau, Fortstrasse 7, 76829 Landau, Germany.
| | - Ricki R Rosenfeldt
- Institute for Environmental Sciences, Group of Ecotoxicology & Environment, University of Koblenz-Landau, Fortstrasse 7, 76829 Landau, Germany
| | - Katharina Storm
- Institute for Environmental Sciences, Group of Ecotoxicology & Environment, University of Koblenz-Landau, Fortstrasse 7, 76829 Landau, Germany
| | - George Metreveli
- Institute for Environmental Sciences, Group of Environmental and Soil Chemistry, University of Koblenz-Landau, Fortstrasse 7, 76829 Landau, Germany
| | - Gabriele E Schaumann
- Institute for Environmental Sciences, Group of Environmental and Soil Chemistry, University of Koblenz-Landau, Fortstrasse 7, 76829 Landau, Germany
| | - Ralf Schulz
- Institute for Environmental Sciences, Group of Ecotoxicology & Environment, University of Koblenz-Landau, Fortstrasse 7, 76829 Landau, Germany
| | - Mirco Bundschuh
- Institute for Environmental Sciences, Group of Ecotoxicology & Environment, University of Koblenz-Landau, Fortstrasse 7, 76829 Landau, Germany; Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Lennart Hjelms Väg 9, 75007 Uppsala, Sweden
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