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de Oliveira LS, Furtado LL, Diniz FDADS, Mendes BL, de Araújo TR, Silva LP, Santiago TR. Eco-Friendly Silver Nanoparticles Synthesized from a Soybean By-Product with Nematicidal Efficacy against Pratylenchus brachyurus. Nanomaterials (Basel) 2023; 14:101. [PMID: 38202556 PMCID: PMC10780907 DOI: 10.3390/nano14010101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 11/29/2023] [Accepted: 12/01/2023] [Indexed: 01/12/2024]
Abstract
This study explores an eco-friendly approach to synthesizing silver nanoparticles (AgNPs) using soybean leaf extracts, employing a reaction with silver nitrate at 65 °C for 2.5 h. Optimal results were achieved at extract concentrations of 3.12 and 6.25 mg of the leaf mL-1, termed 3.12AgNP and 6.25AgNP, respectively. UV-Vis spectrophotometric analysis between 350 and 550 nm exhibited a peak at 410-430 nm, along with a color transition in the suspensions from pale yellow to brown, indicating successful synthesis. Dynamic light scattering (DLS) further delineated the favorable properties of these AgNPs, including nanometric dimensions (73-104 nm), negative charge, and moderate polydispersity, portraying stable and reproducible synthesis reactions. The bioreduction mechanism, possibly expedited by leaf extract constituents such as amino acids, phenolic acids, and polysaccharides, remains to be fully elucidated. Notably, this study underscored the potent nematicidal effectiveness of biosynthesized AgNPs, especially 6.25AgNP, against Pratylenchus brachyurus, which is a common plant-parasitic nematode in tropical soybean cultivation regions. In vitro tests illustrated significant nematicidal activity at concentrations above 25 µmol L-1, while in vivo experiments displayed a pronounced nematode population diminishment in plant roots, particularly with a 6.25AgNP rhizosphere application at concentrations of 500 µmol L-1 or twice at 250 µmol L-1, attaining a reproduction factor below 1 without any morphological nematode alterations. This research highlights the potential of 6.25AgNPs derived from soybean leaf extracts in forging sustainable nematicidal solutions, marking a significant stride toward eco-friendly phytonematode management in soybean cultivation. This novel methodology signals a promising avenue in harnessing botanical resources for nematode control and propelling a greener agricultural horizon.
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Grants
- 421810/2021-1, 311825/2021-4, 307853/2018-7, 408857/2016-1, 306413/2014-0, and 563802/2010-3 National Council for Scientific and Technological Development
- 23038.019088/2009-58 Coordenação de Aperfeicoamento de Pessoal de Nível Superior
- 10.20.03.009.00.00, 23.17.00.069.00.02, 13.17.00.037.00.00, 21.14.03.001.03.05, 13.14.03.010.00.02, 12.16.04.010.00.06, 22.16.05.016.00.04, and 11.13.06.001.06.03 Brazilian Agricultural Research Corporation
- 00193-00000783/2021-16 and 00193-001392/2016 Fundação de Amparo à Pesquisa do Distrito Federal
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Affiliation(s)
- Letícia Santana de Oliveira
- Departamento de Fitopatologia, Universidade de Brasília, Brasília 70910-900, DF, Brazil; (L.S.d.O.); (L.L.F.); (F.d.A.d.S.D.); (B.L.M.); (T.R.d.A.)
| | - Leila Lourenço Furtado
- Departamento de Fitopatologia, Universidade de Brasília, Brasília 70910-900, DF, Brazil; (L.S.d.O.); (L.L.F.); (F.d.A.d.S.D.); (B.L.M.); (T.R.d.A.)
| | - Francisco de Assis dos Santos Diniz
- Departamento de Fitopatologia, Universidade de Brasília, Brasília 70910-900, DF, Brazil; (L.S.d.O.); (L.L.F.); (F.d.A.d.S.D.); (B.L.M.); (T.R.d.A.)
| | - Bruno Leonardo Mendes
- Departamento de Fitopatologia, Universidade de Brasília, Brasília 70910-900, DF, Brazil; (L.S.d.O.); (L.L.F.); (F.d.A.d.S.D.); (B.L.M.); (T.R.d.A.)
| | - Thalisson Rosa de Araújo
- Departamento de Fitopatologia, Universidade de Brasília, Brasília 70910-900, DF, Brazil; (L.S.d.O.); (L.L.F.); (F.d.A.d.S.D.); (B.L.M.); (T.R.d.A.)
| | - Luciano Paulino Silva
- Laboratório de Nanobiotecnologia (LNANO), Embrapa Recursos Genéticos e Biotecnologia, PBI, Brasília 70770-917, DF, Brazil;
| | - Thaís Ribeiro Santiago
- Departamento de Fitopatologia, Universidade de Brasília, Brasília 70910-900, DF, Brazil; (L.S.d.O.); (L.L.F.); (F.d.A.d.S.D.); (B.L.M.); (T.R.d.A.)
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Silva AC, Dos Santos AGR, Pieretti JC, Rolim WR, Seabra AB, Ávila DS. Iron oxide/silver hybrid nanoparticles impair the cholinergic system and cause reprotoxicity in Caenorhabditis elegans. Food Chem Toxicol 2023; 179:113945. [PMID: 37451599 DOI: 10.1016/j.fct.2023.113945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 06/27/2023] [Accepted: 07/11/2023] [Indexed: 07/18/2023]
Abstract
Iron oxide nanoparticles present superparamagnetic properties that enable their application in various areas, including drug delivery at specific locations in the organism. Silver nanoparticles have potent antimicrobial effects. Although the combination of Fe3O4-NPs and Ag-NPs in one hybrid nanostructure (Fe3O4@Ag-NPs) demonstrated promising targeted biomedical applications, their toxicological effects are unknown and need to be assessed. Caenorhabditis elegans is a promising model for nanotoxicological analysis, as it allows an initial screening of new substances. After exposure to Fe3O4-NPs, Ag-NPs and Fe3O4@Ag-NPs, we observed that hybrid NPs reduced the C. elegans survival and reproduction. Higher concentrations of Fe3O4@Ag-NPs caused an increase in cell apoptosis in the germline and a decrease in egg laying, which was associated with a decrease in worm swimming movements and abnormalities in the cholinergic neurons. Fe3O4@Ag-NPs caused an increase in reactive oxygen species, along with activation of DAF-16 transcription factor. A higher expression of the target genes GST-4::GFP and SOD-3::GFP were evidenced, which suggests the activation of the antioxidant system. Our results indicate the reprotoxicity caused by high levels of Fe3O4@Ag-NPs, as well as cholinergic neurotoxicity and activation of the antioxidant system in C. elegans, suggesting that high concentrations of these nanomaterials can be harmful to living organisms.
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Affiliation(s)
- Aline Castro Silva
- Graduate Program in Biochemistry, Laboratory of Biochemistry and Toxicology in Caenorhabditis Elegans, Federal University of Pampa, Uruguaiana, RS, Zip code 97500-970, Brazil
| | - Alisson Gleysson Rodrigues Dos Santos
- Graduate Program in Biochemistry, Laboratory of Biochemistry and Toxicology in Caenorhabditis Elegans, Federal University of Pampa, Uruguaiana, RS, Zip code 97500-970, Brazil
| | - Joana Claudio Pieretti
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André, SP, Zip code 09210-580, Brazil
| | - Wallace Rosado Rolim
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André, SP, Zip code 09210-580, Brazil
| | - Amedea Barozzi Seabra
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo André, SP, Zip code 09210-580, Brazil
| | - Daiana Silva Ávila
- Graduate Program in Biochemistry, Laboratory of Biochemistry and Toxicology in Caenorhabditis Elegans, Federal University of Pampa, Uruguaiana, RS, Zip code 97500-970, Brazil.
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Cochran JP, Unrine JM, Coyne M, Tsyusko OV. Multiple stressor effects on a model soil nematode, Caenorhabditis elegans: Combined effects of the pathogen Klebsiella pneumoniae and zinc oxide nanoparticles. Sci Total Environ 2023; 865:161307. [PMID: 36596421 PMCID: PMC9896629 DOI: 10.1016/j.scitotenv.2022.161307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 12/26/2022] [Accepted: 12/27/2022] [Indexed: 06/17/2023]
Abstract
Research utilizing the model soil nematode Caenorhabditis elegans has revealed that agriculturally relevant nanoparticles (NP), such as zinc oxide NP (ZnONP), cause toxicity at low concentrations and disrupt molecular pathways of pathogen resistance. However, in most nanotoxicity assessments, model organisms are exposed to a single stressor but in nature organisms are affected by multiple sources of stress, including infections, which might exacerbate or mitigate negative effects of NP exposure. Thus, to expand our understanding of the environmental consequences of released NP, this project examined the synergistic/antagonistic effects of ZnONP on C. elegans infected with a common pathogen, Klebsiella pneumoniae. Individual exposures of C. elegans to ZnONP, zinc sulfate (Zn2+ ions) or K. pneumoniae significantly decreased nematode reproduction compared to controls. To assess the combined stress of ZnONP and K. pneumoniae, C. elegans were exposed to equitoxic EC30 concentrations of ZnONP (or Zn ions) and K. pneumoniae. After the combined exposure there was no decrease in reproduction. This complete elimination of reproductive toxicity was unexpected because exposures were conducted at EC30 Zn concentrations and reproductive toxicity due to Zn should have occurred. Amelioration of the pathogen effects by Zn are partially explained by the Zn impact on the K. pneumoniae biofilm. Quantitative assessments showed that external biofilm production and estimated colony forming units (CFU) of K. pneumoniae within the nematodes were significantly decreased. Taken together, our results suggest that during the combined exposure of C. elegans to both stressors Zn in ionic or particulate form inhibits K. pneumoniae ability to colonize nematode's intestine through decreasing pathogen biofilm formation. This highlights the unpredictable nature of combined stressor effects, calling into question the utility of exposures in simplified laboratory media.
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Affiliation(s)
- Jarad P Cochran
- Department of Plant and Soil Sciences, College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY, USA
| | - Jason M Unrine
- Department of Plant and Soil Sciences, College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY, USA; Kentucky Water Resources Research Institute, University of Kentucky, Lexington, KY, USA
| | - Mark Coyne
- Department of Plant and Soil Sciences, College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY, USA
| | - Olga V Tsyusko
- Department of Plant and Soil Sciences, College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY, USA.
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Rossbach LM, Brede DA, Nuyts G, Cagno S, Olsson RMS, Oughton DH, Falkenberg G, Janssens K, Lind OC. Synchrotron XRF Analysis Identifies Cerium Accumulation Colocalized with Pharyngeal Deformities in CeO 2 NP-Exposed Caenorhabditis elegans. Environ Sci Technol 2022; 56:5081-5089. [PMID: 35378039 PMCID: PMC9022427 DOI: 10.1021/acs.est.1c08509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 03/23/2022] [Accepted: 03/23/2022] [Indexed: 06/14/2023]
Abstract
A combination of synchrotron radiation-based elemental imaging, in vivo redox status analysis, histology, and toxic responses was used to investigate the uptake, biodistribution, and adverse effects of Ce nanoparticles (CeO2 NP; 10 nm; 0.5-34.96 mg Ce L-1) or Ce(NO3)3 (2.3-26 mg Ce L-1) in Caenorhabditis elegans. Elemental mapping of the exposed nematodes revealed Ce uptake in the alimentary canal prior to depuration. Retention of CeO2 NPs was low compared to that of Ce(NO3)3 in depurated individuals. X-ray fluorescence (XRF) mapping showed that Ce translocation was confined to the pharyngeal valve and foregut. Ce(NO3)3 exposure significantly decreased growth, fertility, and reproduction, caused slightly reduced fecundity. XRF mapping and histological analysis revealed severe tissue deformities colocalized with retained Ce surrounding the pharyngeal valve. Both forms of Ce activated the sod-1 antioxidant defense, particularly in the pharynx, whereas no significant effects on the cellular redox balance were identified. The CeO2 NP-induced deformities did not appear to impair the pharyngeal function or feeding ability as growth effects were restricted to Ce(NO3)3 exposure. The results demonstrate the utility of integrated submicron-resolution SR-based XRF elemental mapping of tissue-specific distribution and adverse effect analysis to obtain robust toxicological evaluations of metal-containing contaminants.
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Affiliation(s)
- Lisa Magdalena Rossbach
- Faculty
of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. BOX 5003 NMBU, No-1432 Ås, Norway
- Centre
for Environmental Radioactivity (CERAD CoE), Faculty of Environmental
Sciences and Natural Resource Management, Norwegian University of Life Sciences (NMBU), P.O. Box 5003, 1432 Ås, Norway
| | - Dag Anders Brede
- Faculty
of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. BOX 5003 NMBU, No-1432 Ås, Norway
- Centre
for Environmental Radioactivity (CERAD CoE), Faculty of Environmental
Sciences and Natural Resource Management, Norwegian University of Life Sciences (NMBU), P.O. Box 5003, 1432 Ås, Norway
| | - Gert Nuyts
- Faculty
of Science, AXIS Research group, University
of Antwerp, Groenenborgerlaan
171, 2020 Antwerp, Belgium
| | - Simone Cagno
- Faculty
of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. BOX 5003 NMBU, No-1432 Ås, Norway
- Centre
for Environmental Radioactivity (CERAD CoE), Faculty of Environmental
Sciences and Natural Resource Management, Norwegian University of Life Sciences (NMBU), P.O. Box 5003, 1432 Ås, Norway
| | - Ragni Maria Skjervold Olsson
- Faculty
of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. BOX 5003 NMBU, No-1432 Ås, Norway
- Faculty
of Natural Sciences, Norwegian University
of Science and Technology, P.O. Box 8900, No-7491 Trondheim, Torgarden, Norway
| | - Deborah Helen Oughton
- Faculty
of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. BOX 5003 NMBU, No-1432 Ås, Norway
- Centre
for Environmental Radioactivity (CERAD CoE), Faculty of Environmental
Sciences and Natural Resource Management, Norwegian University of Life Sciences (NMBU), P.O. Box 5003, 1432 Ås, Norway
| | - Gerald Falkenberg
- Photon
Science, Deutsches Elektronen-Synchrotron
DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - Koen Janssens
- Faculty
of Science, AXIS Research group, University
of Antwerp, Groenenborgerlaan
171, 2020 Antwerp, Belgium
| | - Ole Christian Lind
- Faculty
of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. BOX 5003 NMBU, No-1432 Ås, Norway
- Centre
for Environmental Radioactivity (CERAD CoE), Faculty of Environmental
Sciences and Natural Resource Management, Norwegian University of Life Sciences (NMBU), P.O. Box 5003, 1432 Ås, Norway
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Turki F, Ben Younes R, Sakly M, Ben Rhouma K, Martinez-Guitarte JL, Amara S. Effect of silver nanoparticles on gene transcription of land snail Helix aspersa. Sci Rep 2022; 12:2078. [PMID: 35136168 PMCID: PMC8826417 DOI: 10.1038/s41598-022-06090-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 01/24/2022] [Indexed: 11/09/2022] Open
Abstract
Silver nanoparticles (Ag-NPs) are extremely useful in a diverse range of consumer goods. However, their impact on the environment is still under research, especially regarding the mechanisms involved in their effect. Aiming to provide some insight, the present work analyzes the transcriptional activity of six genes (Hsp83, Hsp17.2, Hsp19.8, SOD Cu-Zn, Mn-SOD, and BPI) in the terrestrial snail Helix aspersa in the presence of different concentrations of Ag-NPs. The animals were exposed for seven days to Lactuca sativa soaked for one hour in different concentrations of Ag-NPs (20, 50, 100 mg/L). The results revealed that the highest concentration tested of Ag-NPs (100 mg/L) led to a statistically significant induction of the Hsp83 and BPI expression in the digestive gland compared to the control group. However, a trend to upregulation with no statistical significance was observed for all the genes in the digestive gland and the foot, while in the hemolymph, the trend was to downregulation. Ag-NPs affected the stress response and immunity under the tested conditions, although the impact was weak. It is necessary to explore longer exposure times to confirm that the effect can be maintained and impact on health. Our results highlight the usefulness of the terrestrial snail Helix aspersa as a bioindicator organism for silver nanoparticle pollution biomonitoring and, in particular, the use of molecular biomarkers of pollutant effect as candidates to be included in a multi-biomarker strategy.
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Affiliation(s)
- Faten Turki
- Laboratory of Integrative Physiology, Faculty of Sciences of Bizerte, University of Carthage, 7021, Jarzouna, Tunisia
| | - Ridha Ben Younes
- Research Unit of Immuno-Microbiology Environmental and Carcinogenesis, Sciences Faculty of Bizerte, University of Carthage, Bizerte, Tunisia
| | - Mohsen Sakly
- Laboratory of Integrative Physiology, Faculty of Sciences of Bizerte, University of Carthage, 7021, Jarzouna, Tunisia
| | - Khemais Ben Rhouma
- Laboratory of Integrative Physiology, Faculty of Sciences of Bizerte, University of Carthage, 7021, Jarzouna, Tunisia
| | - José-Luis Martinez-Guitarte
- Grupo de Biología y Toxicología Ambiental, Departamento de Física Matemática y de Fluidos, Facultad de Ciencias, UNED, c/ Paseo de la Senda del Rey 9, 28040, Madrid, Spain.
| | - Salem Amara
- Laboratory of Integrative Physiology, Faculty of Sciences of Bizerte, University of Carthage, 7021, Jarzouna, Tunisia
- Department of Natural and Applied Sciences in Afif, Faculty of Sciences and Humanities, Shaqra University, Afif, 11921, Saudi Arabia
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Liu H, Tian L, Wang S, Wang D. Size-dependent transgenerational toxicity induced by nanoplastics in nematode Caenorhabditis elegans. Sci Total Environ 2021; 790:148217. [PMID: 34111783 DOI: 10.1016/j.scitotenv.2021.148217] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/27/2021] [Accepted: 05/29/2021] [Indexed: 05/21/2023]
Abstract
Nanoplastic exposure can potentially cause the severe transgenerational toxicity in organisms. However, the transgenerational nanoplastic toxicity and the underlying mechanisms are still largely unclear. Using Caenorhabditis elegans as an animal model, we here compared the transgenerational toxicity of two sizes of polystyrene nanoparticles (PS-NPs, 20 and 100 nm). The nematodes were exposed to PS-NPs at the P0 generation, and from the F1 generation the nematodes were grown under the normal condition. Exposure to 20 nm PS-NPs resulted in more severe transgenerational toxicity than exposure to 100 nm PS-NPs. At the concentration of 100 μg/L, the toxicity of 20 nm PS-NPs on locomotion and reproduction was detected at the F1-F6 generations, whereas the toxicity of 100 nm PS-NPs could only be observed at the F1-F3 generations. The difference in transgeneration toxicity between PS-NPs (20 nm) and PS-NPs (100 nm) was associated with the difference in transgenerational activation of oxidative stress. Based on observations on SOD-3::GFP, HSP-6::GFP, and HSP-4::GFP expressions, PS-NPs (20 nm) and PS-NPs (100 nm) further induced different transgenerational responses of anti-oxidation, mt UPR, and ER UPR. Our data suggested that the induction of transgenerational toxicity of PS-NPs was size dependent in nematodes. The results are helpful for our understanding the cellular mechanisms for the induction of transgenerational nanoplastic toxicity in organisms.
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Affiliation(s)
- Huanliang Liu
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Lijie Tian
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Shuting Wang
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Dayong Wang
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Medical School, Southeast University, Nanjing 210009, China; Shenzhen Ruipuxun Academy for Stem Cell & Regenerative Medicine, Shenzhen 518122, China.
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Bortolozzo LS, Côa F, Khan LU, Medeiros AMZ, Da Silva GH, Delite FS, Strauss M, Martinez DST. Mitigation of graphene oxide toxicity in C. elegans after chemical degradation with sodium hypochlorite. Chemosphere 2021; 278:130421. [PMID: 33839394 DOI: 10.1016/j.chemosphere.2021.130421] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/19/2021] [Accepted: 03/23/2021] [Indexed: 05/28/2023]
Abstract
Graphene oxide (GO) is a promising and strategic carbon-based nanomaterial for innovative and disruptive technologies. It is therefore essential to address its environmental health and safety aspects. In this work, we evaluated the chemical degradation of graphene oxide by sodium hypochlorite (NaClO, bleach water) and its consequences over toxicity, on the nematode Caenorhabditis elegans. The morphological, chemical, and structural properties of GO and its degraded product, termed NaClO-GO, were characterized, exploring an integrated approach. After the chemical degradation of GO at room temperature, its flake size was reduced from 156 to 29 nm, while NaClO-GO showed changes in UV-vis absorption, and an increase in the amount of oxygenated surface groups, which dramatically improved its colloidal stability in moderately hard reconstituted water (EPA medium). Acute and chronic exposure endpoints (survival, growth, fertility, and reproduction) were monitored to evaluate material toxicities. NaClO-GO presented lower toxicity at all endpoints. For example, an increase of over 100% in nematode survival was verified for the degraded material when compared to GO at 10 mg L-1. Additionally, enhanced dark-field hyperspectral microscopy confirmed the oral uptake of both materials by C. elegans. Finally, this work represents a new contribution toward a better understanding of the links between the transformation of graphene-based materials and nanotoxicity effects (mitigation), which is mandatory for the safety improvements that are required to maximize nanotechnological benefits to society.
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Affiliation(s)
- Leandro S Bortolozzo
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, Brazil; School of Technology, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Francine Côa
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, Brazil; Center of Nuclear Energy in Agriculture (CENA), University of Sao Paulo (USP), Piracicaba, Sao Paulo, Brazil
| | - Latif U Khan
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, Brazil
| | - Aline M Z Medeiros
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, Brazil; Center of Nuclear Energy in Agriculture (CENA), University of Sao Paulo (USP), Piracicaba, Sao Paulo, Brazil
| | - Gabriela H Da Silva
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, Brazil
| | - Fabricio S Delite
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, Brazil
| | - Mathias Strauss
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, Brazil; Centre of Natural and Human Sciences, Federal University of ABC (UFABC), Santo André, São Paulo, Brazil
| | - Diego Stéfani T Martinez
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, Brazil; School of Technology, University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil; Center of Nuclear Energy in Agriculture (CENA), University of Sao Paulo (USP), Piracicaba, Sao Paulo, Brazil.
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Rossbach LM, Oughton DH, Maremonti E, Eide DM, Brede DA. Impact of multigenerational exposure to AgNO 3 or NM300K Ag NPs on antioxidant defense and oxidative stress in Caenorhabditis elegans. Ecotoxicol Environ Saf 2021; 216:112178. [PMID: 33812211 DOI: 10.1016/j.ecoenv.2021.112178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/17/2021] [Accepted: 03/19/2021] [Indexed: 06/12/2023]
Abstract
Adaptation of the nematode Caenorhabditis elegans towards NM300K silver nanoparticles (Ag NPs) has previously been demonstrated. In the current study, the sensitivity to a range of secondary stressors (CeO2 NP, Ce3+, Cu2+, Cd2+, and Paraquat) following the multigenerational exposure to silver nanoparticles (Ag NPs NM300K) or AgNO3 was investigated. This revealed improved tolerance to the ROS inducer Paraquat with higher fecundity after pre-exposure to Ag NP, indicating an involvement of reactive oxygen species (ROS) metabolism in the adaptive response to NM300K. The potential contribution of the antioxidant defenses related to adaptive responses was investigated across six generations of exposure using the sod-1::GFP reporter (GA508), and the Grx1-roGFP2 (GRX) biosensor strains. Results showed an increase in sod-1 expression by the F3 generation, accompanied by a reduction of GSSG/GSH ratios, from both AgNO3 and Ag NP exposures. Continuous exposure to AgNO3 and Ag NP until the F6 generation resulted in a decreased sod-1 expression, with a concomitant increase in GSSG/GSH ratios. The results thus show that despite an initial enhancement, the continuous exposure to Ag caused a severe impairment of the antioxidant defense capacity in C. elegans.
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Affiliation(s)
- Lisa M Rossbach
- Norwegian University of Life Sciences, Faculty of Environmental Sciences and Natural Resource Management, P.O. BOX 5003 NMBU, No-1432 Ås, Norway.
| | - Deborah H Oughton
- Norwegian University of Life Sciences, Faculty of Environmental Sciences and Natural Resource Management, P.O. BOX 5003 NMBU, No-1432 Ås, Norway
| | - Erica Maremonti
- Norwegian University of Life Sciences, Faculty of Environmental Sciences and Natural Resource Management, P.O. BOX 5003 NMBU, No-1432 Ås, Norway
| | - Dag M Eide
- Norwegian Institute of Public Health, Lovisenberggata 8, 0456 Oslo, Norway
| | - Dag A Brede
- Norwegian University of Life Sciences, Faculty of Environmental Sciences and Natural Resource Management, P.O. BOX 5003 NMBU, No-1432 Ås, Norway
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Wu J, Wang L, Zhang Y, Zhang S, Ahmad S, Luo Y. Synthesis and Photoactivated Toxicity of 2-Thiophenylfuranocoumarin Induce Midgut Damage and Apoptosis in Aedes aegypti Larvae. J Agric Food Chem 2021; 69:1091-1106. [PMID: 33432806 DOI: 10.1021/acs.jafc.0c07237] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Furanocoumarins are photoactive compounds derived from secondary plant metabolites. They possess many bioactivities, including antioxidative, anticancer, insecticidal, and bactericidal activities. Here, we designed a new scheme for synthesizing 2-arylfuranocoumarin derivatives by condensation, esterification, bromination, and Wittig reaction. We found that 2-thiophenylfuranocoumarin (Iy) had excellent photosensitive activity. Three Iy concentrations (LC25, LC50, and LC75) were used to treat the fourth instar larvae of Aedes aegypti (A. aegypti). The photoactivated toxicity, sublethal dose, mitochondrial dysfunction, oxidative stress level, intestinal barrier dysfunction, and apoptosis were studied. The results showed that Iy induced reactive oxygen species (ROS) production in midgut cells under ultraviolet light. Ultrastructural analysis demonstrated that mitochondria were damaged, and the activities of related enzymes were inhibited. Ultimately, Iy exposure led to excessive ROS production followed by the inhibition of antioxidant enzymes, including SOD, CAT, GPx, and GR, which diminished ROS elimination and escalated oxidative stress in midgut cells, aggravating the degree of oxidative damage in these cells. Histopathological changes were observed in the midgut, which led to intestinal barrier dysfunction. When the elimination of ROS was blocked and it accumulated in cells, apoptosis-related genes, including AeDronc, AeCaspase7, and AeCaspase8, were induced and activated. In addition, Iy affected the growth and development of A. aegypti at sublethal concentrations, and there was an obvious post-lethal effect. Thus, we found that Iy caused midgut damage and apoptosis in A. aegypti larvae under ultraviolet light, which preliminarily revealed the mode of action of Iy in A. aegypti.
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Affiliation(s)
- Jiecheng Wu
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, Ministry of Education, College of Plant Protection, Hainan University, Haikou, Hainan 570228, P.R. China
| | - Lanying Wang
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, Ministry of Education, College of Plant Protection, Hainan University, Haikou, Hainan 570228, P.R. China
| | - Yunfei Zhang
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, Ministry of Education, College of Plant Protection, Hainan University, Haikou, Hainan 570228, P.R. China
| | - Shujing Zhang
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, Ministry of Education, College of Plant Protection, Hainan University, Haikou, Hainan 570228, P.R. China
| | - Shakil Ahmad
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, Ministry of Education, College of Plant Protection, Hainan University, Haikou, Hainan 570228, P.R. China
| | - Yanping Luo
- Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, Ministry of Education, College of Plant Protection, Hainan University, Haikou, Hainan 570228, P.R. China
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Bicho RC, Faustino AMR, Carvalho F, Soares AMVM, Scott-Fordsmand JJ, Amorim MJB. Embryotoxicity of silver nanomaterials (Ag NM300k) in the soil invertebrate Enchytraeus crypticus - Functional assay detects Ca channels shutdown. NanoImpact 2021; 21:100300. [PMID: 35559787 DOI: 10.1016/j.impact.2021.100300] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/21/2021] [Accepted: 01/22/2021] [Indexed: 06/15/2023]
Abstract
Despite that silver (Ag) is among the most studied nanomaterials (NM) in environmental species and Ag's embryotoxicity is well known, there are no studies on Ag NMs embryotoxicity in soil invertebrates. Previous Full Life Cycle (FLC) studies in Enchytraeus crypticus, a standard soil invertebrate, showed that Ag materials decreased hatching success, which was confirmed to be a hatching delay effect for silver nitrate (AgNO3) and mortality for Ag NM300K. In the present study, we aimed to investigate if the impact of Ag takes place during the embryonic development, using histology and immunohistochemistry. E. crypticus cocoons were exposed to a range of concentrations of Ag NM300K (0-10-20-60-115 mg Ag/kg) and AgNO3 (0-20-45-60-96 mg Ag/kg) in LUFA 2.2 soil, in an embryotoxicity test, being sampled at days 1, 2, 3 and 6 (3, 4, 5 and 7 days after cocoon laying). Measured endpoints included the number of embryonic structures, expression of transferrin receptor (TfR) and L type calcium channels (LTCC) through histological and immunohistochemistry analysis, respectively. Results confirmed that Ag materials affected the embryonic development, specifically at the blastula stage (day 3). The expression and localization of TfR in E. crypticus was shown in the teloblasts cells, although this transcytosis mechanism was not activated. Ag affected calcium (Ca) metabolism during embryonic development: for AgNO3, LTCC was initially activated, compensating the impact, for Ag NM300K, LTCC was not activated, hence no Ca balance, with irreversible consequences, i.e. terminated embryonic development. An Adverse Outcome Pathway was drafted, integrating the mechanisms here discovered with previous knowledge.
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Affiliation(s)
- Rita C Bicho
- Department of Biology & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Augusto M R Faustino
- Department of Pathology and Molecular Immunology, Biomedical Sciences Institute of Abel Salazar, University of Porto, 4050-313 Porto, Portugal
| | - Fátima Carvalho
- Department of Pathology and Molecular Immunology, Biomedical Sciences Institute of Abel Salazar, University of Porto, 4050-313 Porto, Portugal
| | - Amadeu M V M Soares
- Department of Biology & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Janeck J Scott-Fordsmand
- Department of Bioscience, Aarhus University, Vejlsovej 25, PO BOX 314, DK-8600 Silkeborg, Denmark
| | - Mónica J B Amorim
- Department of Biology & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal.
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11
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Wang Y, Sun Y, Zhang Z, Li Z, Zhang H, Liao Y, Tang C, Cai P. Enhancement in the ATP level and antioxidant capacity of Caenorhabditis elegans under continuous exposure to extremely low-frequency electromagnetic field for multiple generations. Int J Radiat Biol 2020; 96:1633-1640. [PMID: 32991227 DOI: 10.1080/09553002.2020.1828657] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
PURPOSE Safety concerns about the effects of long-term extremely low-frequency electromagnetic field (ELF-EMF) exposure on human health have been raised. To explore the effects of continuous exposure to ELF-EMF on organisms for multiple generations, we selected Caenorhabditis elegans as a model organism and conducted long-term continuous exposure studies for multiple generations under 20 °C, 50 Hz, and 3 mT ELF-EMF. MATERIALS AND METHODS Each generation of worms was treated with ELF-EMF from the egg in the same environment. After long-term exposure to ELF-EMF, the body length of the worms was detected, and 15th generation adult worms were selected as the research object. The ATP level and ATPase were detected, and the expression levels of genes encoding ATP synthase (r53.4, hpo-18, atp-5, unc-32, atp-3) were detected by RT-PCR. In worm's antioxidant system, the level of reactive oxygen species (ROS) was detected by dichlorofluorescein staining, and the total antioxidant capacity (T-AOC), superoxide dismutase (SOD) and catalase (CAT) activity were investigated. The expression of genes encoding superoxide dismutase (sod-1, sod-2, sod-3) was detected in adult (60 h) worms of the fifteenth generation (F15). RESULTS These results showed that the body length of F15 worms increased significantly, ATP content increased significantly, ATP synthase activity was significantly enhanced, and the expression levels of the r53.4, hpo-18, atp-5, and atp-3 genes encoding ATPase were significantly upregulated in F15 worms. In addition, SOD activity increased significantly, and the expression levels of the sod-1, sod-2, and sod-3 genes encoding SOD were also significantly upregulated in F15 worms. CONCLUSIONS These results indicated that continuous exposure to 50 Hz, 3 mT ELF-EMF for multiple generations can increase the body length of worms, induce the synthesis of ATP and enhance the antioxidant capacity of worms.
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Affiliation(s)
- Yahong Wang
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China.,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China.,Xiamen Key Laboratory of Physical Environment, Xiamen, China
| | - Yongyan Sun
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China.,Tianjin Key Laboratory of Hazardous Waste Safety Disposal and Recycling Technology, Tianjin University of Technology, Tianjin, China
| | - Ziyan Zhang
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China.,Xiamen Key Laboratory of Physical Environment, Xiamen, China.,Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Zhihui Li
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China.,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China.,Xiamen Key Laboratory of Physical Environment, Xiamen, China
| | - Hongying Zhang
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China.,College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China.,Xiamen Key Laboratory of Physical Environment, Xiamen, China
| | - Yanyan Liao
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China.,Xiamen Key Laboratory of Physical Environment, Xiamen, China
| | - Chao Tang
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China.,Xiamen Key Laboratory of Physical Environment, Xiamen, China
| | - Peng Cai
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China.,Xiamen Key Laboratory of Physical Environment, Xiamen, China.,Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
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