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Graciano DE, Pontes MS, Araujo LO, Lima RG, Grillo R, Machulek A, Santiago EF, Oliveira SL, Caires ARL. CuO nanoparticles' effect on the photosynthetic performance in seed tissues of Inga laurina (Fabaceae). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:50722-50732. [PMID: 39102133 DOI: 10.1007/s11356-024-34499-w] [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: 04/11/2024] [Accepted: 07/23/2024] [Indexed: 08/06/2024]
Abstract
Copper oxide nanoparticles (CuONPs) have been produced on a large scale because they can be applied across various fields, especially in nano-enabled healthcare and agricultural products. However, the increasing use of CuONPs leads to their release and accumulation into the environment. The CuONPs uptaken by seeds and their implications on germination behavior have been reported, but little is known or understood about their impact on photosynthesis in seed tissues. To fill knowledge gaps, this study evaluated the effects of CuONP concentrations (0-300 mg L-1) on the photosynthetic activity of Inga laurina seeds. The microscopy data showed that CuONPs had an average size distribution of 57.5 ± 0.7 nm. Copper ion release and production of reactive oxygen species (ROS) by CuONPs were also evaluated by dialysis and spectroscopy experiments, respectively. CuONPs were not able to intrinsically generate ROS and released a low content of Cu2⁺ ions (4.5%, w/w). Time evolution of chlorophyll fluorescence imaging and laser-induced fluorescence spectroscopy were used to monitor the seeds subjected to nanoparticles during 168 h. The data demonstrate that CuONPs affected the steady-state maximum chlorophyll fluorescence (F m ' ), the photochemical efficiency of photosystem II (F v / F m ), and non-photochemical quenching ( NPQ ) of Inga laurina seeds over time. Besides, the NPQ significantly increased at the seed development stage, near the root protrusion stage, probably due to energy dissipation at this germination step. Additionally, the results indicated that CuONPs can change the oscillatory rhythms of energy dissipation of the seeds, disturbing the circadian clock. In conclusion, the results indicate that CuONPs can affect the photosynthetic behavior of I. laurina seeds. These findings open opportunities for using chlorophyll fluorescence as a non-destructive tool to evaluate nanoparticle impact on photosynthetic activity in seed tissues.
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Affiliation(s)
- Daniela Espanguer Graciano
- Optics and Photonics Group, Institute of Physics, Federal University of Mato Grosso Do Sul (UFMS), Campo Grande, MS, Brazil
- Faculty of Exact Sciences and Technology, Federal University of Grande Dourados (UFGD), Dourados, MS, Brazil
| | - Montcharles Silva Pontes
- Optics and Photonics Group, Institute of Physics, Federal University of Mato Grosso Do Sul (UFMS), Campo Grande, MS, Brazil
- Plant Resources Study Group, Natural Resources Program, Mato Grosso do Sul State University (UEMS), Dourados, MS, Brazil
| | - Leandro Oliveira Araujo
- Optics and Photonics Group, Institute of Physics, Federal University of Mato Grosso Do Sul (UFMS), Campo Grande, MS, Brazil
| | - Regiane Godoy Lima
- Optics and Photonics Group, Institute of Physics, Federal University of Mato Grosso Do Sul (UFMS), Campo Grande, MS, Brazil
| | - Renato Grillo
- Department of Physics and Chemistry, School of Engineering, São Paulo State University (UNESP), Ilha Solteira, SP, Brazil
| | - Amilcar Machulek
- Institute of Chemistry, Federal University of Mato Grosso Do Sul (UFMS), Campo Grande, MS, Brazil
| | - Etenaldo Felipe Santiago
- Plant Resources Study Group, Natural Resources Program, Mato Grosso do Sul State University (UEMS), Dourados, MS, Brazil
| | - Samuel Leite Oliveira
- Optics and Photonics Group, Institute of Physics, Federal University of Mato Grosso Do Sul (UFMS), Campo Grande, MS, Brazil
| | - Anderson Rodrigues Lima Caires
- Optics and Photonics Group, Institute of Physics, Federal University of Mato Grosso Do Sul (UFMS), Campo Grande, MS, Brazil.
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Zhao X, Ma Y, Dai W, Song Z, Wang Y, Shen J, He X, Yang F, Zhang Z. Alginate and chitosan surface coating reduces the phytotoxicity of CeO 2 nanoparticles to duckweed (Lemna minor L.). CHEMOSPHERE 2024; 362:142649. [PMID: 38901699 DOI: 10.1016/j.chemosphere.2024.142649] [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: 03/03/2024] [Revised: 06/16/2024] [Accepted: 06/17/2024] [Indexed: 06/22/2024]
Abstract
Little is known about the effect of surface coatings on the fate and toxicity of CeO2 nanoparticles (NPs) to aquatic plants. In this study, we modified nCeO2 with chitosan (Cs) and alginate (Al) to obtain positively charged nCeO2@Cs and negatively charged nCeO2@Al, respectively, and exposed them to a representative aquatic plant, duckweed (Lemna minor L.). Uncoated nCeO2 could significantly inhibit the growth of duckweed, induce oxidative damage and lead to cell death, whereas nCeO2@Cs and nCeO2@Al exhibited lower toxicity to duckweed. ICP-MS analysis revealed that the Ce content in duckweed from the nCeO2 group was 1.74 and 2.85 times higher than that in the nCeO2@Cs and nCeO2@Al groups, respectively. Microscopic observations indicated that the positively charged nCeO2@Cs was more readily adsorbed on the root surface of duckweed than the negatively charged nCeO2@Al. The results of XANES and LCF demonstrated that a certain percentage of Ce(Ⅳ) was reduced to Ce(Ⅲ) after the interaction of the three NPs with duckweed, but the degree of biotransformation differed among the treatments. Specifically, the absolute contents of Ce(III) produced of nCeO2@Cs and nCeO2@Al through biotransformation were reduced by 55.5% and 83.5%, respectively, compared with that of the nCeO2 group, which might be the key factor for the diminished phytotoxicity of the coated nCeO2 to the duckweed. These findings were valuable for understanding the toxicity of metal-based NPs to aquatic plants and for the synthesis of environmentally friendly nanomaterials.
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Affiliation(s)
- Xuepeng Zhao
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS-HKU Joint Laboratory of Metallomics on Health and Environment, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Yuhui Ma
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS-HKU Joint Laboratory of Metallomics on Health and Environment, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China.
| | - Wanqin Dai
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS-HKU Joint Laboratory of Metallomics on Health and Environment, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhuda Song
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS-HKU Joint Laboratory of Metallomics on Health and Environment, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Yun Wang
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS-HKU Joint Laboratory of Metallomics on Health and Environment, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Jiaqi Shen
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS-HKU Joint Laboratory of Metallomics on Health and Environment, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiao He
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS-HKU Joint Laboratory of Metallomics on Health and Environment, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Fang Yang
- Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy Saving, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Zhiyong Zhang
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS-HKU Joint Laboratory of Metallomics on Health and Environment, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China; School of Nuclear Science and Technology, University of the Chinese Academy of Sciences, Beijing, 100049, China.
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3
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Na HG, Kim S, Jin C. Physical interpretation of entropy, Boltzmann constant, and temperature. Sci Rep 2024; 14:17705. [PMID: 39085416 PMCID: PMC11291489 DOI: 10.1038/s41598-024-68673-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Accepted: 07/26/2024] [Indexed: 08/02/2024] Open
Abstract
Through the previously reported the quantum-identity, the light-model, and the T(temperature) · S(entropy) energy, the implied meaning of temperature and entropy, respectively, which it was difficult to intuitively recognize, was clearly defined. In order to minimize possible errors at this time, the interrelationship of the SI base unit, which is the smallest unit, and the T(temperature) · S(entropy) unit integration was used. In the process of converting to Planck units, each unit (criterion) for entropy and temperature was calculated, and their physical and chemical meanings were compared and reinterpreted. Thus, the unit of entropy is related to the Boltzmann constant, and the temperature is the oscillation of pure mass units. Therefore, the intuitive recognition of physical and chemical factors based on the unit of meter(m)-time(s) is considered sufficient as an initiator to move closer to new science beyond the current limited application.
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Affiliation(s)
- Han Gil Na
- UDerive, GJ Gajwa Tower Knowledge Industry Center, 16, Baekbeom-ro 630 beon-gil, Seo-gu, Incheon, 22824, Republic of Korea
| | - Sangwoo Kim
- Materials Supply Chain R&D Department, Korea Institute of Industrial Technology, Incheon, 21999, Republic of Korea
| | - Changhyun Jin
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea.
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Pontes MS, Santos JS, da Silva JL, Miguel TBAR, Miguel EC, Souza Filho AG, Garcia F, Lima SM, da Cunha Andrade LH, Arruda GJ, Grillo R, Caires ARL, Felipe Santiago E. Assessing the Fate of Superparamagnetic Iron Oxide Nanoparticles Carrying Usnic Acid as Chemical Cargo on the Soil Microbial Community. ACS NANO 2023; 17:7417-7430. [PMID: 36877273 DOI: 10.1021/acsnano.2c11985] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
In the present study we evaluate the effect of superparamagnetic iron oxide nanoparticles (SPIONs) carrying usnic acid (UA) as chemical cargo on the soil microbial community in a dystrophic red latosol (oxysol). Herein, 500 ppm UA or SPIONs-framework carrying UA were diluted in sterile ultrapure deionized water and applied by hand sprayer on the top of the soil. The experiment was conducted in a growth chamber at 25 °C, with a relative humidity of 80% and a 16 h/8 h light-dark cycle (600 lx light intensity) for 30 days. Sterile ultrapure deionized water was used as the negative control; uncapped and oleic acid (OA) capped SPIONs were also tested to assess their potential effects. Magnetic nanostructures were synthesized by a coprecipitation method and characterized by scanning and transmission electron microscopy (SEM and TEM), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), zeta potential, hydrodynamic diameter, magnetic measurements, and release kinetics of chemical cargo. Uncapped and OA-capped SPIONs did not significantly affect soil microbial community. Our results showed an impairment in the soil microbial community exposed to free UA, leading to a general decrease in negative effects on soil-based parameters when bioactive was loaded into the nanoscale magnetic carrier. Besides, compared to control, the free UA caused a significant decrease in microbial biomass C (39%), on the activity of acid protease (59%), and acid phosphatase (23%) enzymes, respectively. Free UA also reduced eukaryotic 18S rRNA gene abundance, suggesting a major impact on fungi. Our findings indicate that SPIONs as bioherbicide nanocarriers can reduce the negative impacts on soil. Therefore, nanoenabled biocides may improve agricultural productivity, which is important for food security due to the need of increasing food production.
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Affiliation(s)
- Montcharles S Pontes
- Natural Resources Program, Center for Natural Resources Study (CERNA), Mato Grosso do Sul State University (UEMS), Dourados, 79804-970, Brazil
- Optics and Photonics Group, Institute of Physics, Federal University of Mato Grosso do Sul (UFMS), Campo Grande, 79070-900, Brazil
| | - Jaqueline Silva Santos
- Genetics Department, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Piracicaba, 13418-900, Brazil
| | - José Luiz da Silva
- Department of Analytical, Physico-Chemical and Inorganic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), Araraquara, 14800-060, Brazil
| | - Thaiz B A R Miguel
- Laboratory of Biotechnology, Department of Food Engineering (DEAL), Federal University of Ceará (UFC), Fortaleza, 60440-554, Brazil
| | - Emilio Castro Miguel
- Laboratory of Biomaterials, Department of Metallurgical and Materials Engineering, Federal University of Ceará (UFC), Fortaleza, 60440-554, Brazil
| | - Antonio G Souza Filho
- Department of Physics, Federal University of Ceará (UFC), Fortaleza, 60440-554, Brazil
| | - Flavio Garcia
- Brazilian Center for Research in Physics, Urca, Rio de Janeiro 22290-180, Brazil
| | - Sandro Marcio Lima
- Natural Resources Program, Center for Natural Resources Study (CERNA), Mato Grosso do Sul State University (UEMS), Dourados, 79804-970, Brazil
| | - Luís Humberto da Cunha Andrade
- Natural Resources Program, Center for Natural Resources Study (CERNA), Mato Grosso do Sul State University (UEMS), Dourados, 79804-970, Brazil
| | - Gilberto J Arruda
- Natural Resources Program, Center for Natural Resources Study (CERNA), Mato Grosso do Sul State University (UEMS), Dourados, 79804-970, Brazil
| | - Renato Grillo
- São Paulo State University (UNESP), Department of Physics and Chemistry, School of Engineering, Ilha Solteira, São Paulo 15385-000, Brazil
| | - Anderson R L Caires
- Optics and Photonics Group, Institute of Physics, Federal University of Mato Grosso do Sul (UFMS), Campo Grande, 79070-900, Brazil
| | - Etenaldo Felipe Santiago
- Natural Resources Program, Center for Natural Resources Study (CERNA), Mato Grosso do Sul State University (UEMS), Dourados, 79804-970, Brazil
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Pre-emergent bioherbicide potential of Schinus terebinthifolia Raddi essential oil nanoemulsion for Urochloa brizantha. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2023. [DOI: 10.1016/j.bcab.2022.102598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Demir E, Kansız S, Doğan M, Topel Ö, Akkoyunlu G, Kandur MY, Turna Demir F. Hazard Assessment of the Effects of Acute and Chronic Exposure to Permethrin, Copper Hydroxide, Acephate, and Validamycin Nanopesticides on the Physiology of Drosophila: Novel Insights into the Cellular Internalization and Biological Effects. Int J Mol Sci 2022; 23:ijms23169121. [PMID: 36012388 PMCID: PMC9408976 DOI: 10.3390/ijms23169121] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/07/2022] [Accepted: 08/09/2022] [Indexed: 12/23/2022] Open
Abstract
New insights into the interactions between nanopesticides and edible plants are required in order to elucidate their impacts on human health and agriculture. Nanopesticides include formulations consisting of organic/inorganic nanoparticles. Drosophila melanogaster has become a powerful model in genetic research thanks to its genetic similarity to mammals. This project mainly aimed to generate new evidence for the toxic/genotoxic properties of different nanopesticides (a nanoemulsion (permethrin nanopesticides, 20 ± 5 nm), an inorganic nanoparticle as an active ingredient (copper(II) hydroxide [Cu(OH)2] nanopesticides, 15 ± 6 nm), a polymer-based nanopesticide (acephate nanopesticides, 55 ± 25 nm), and an inorganic nanoparticle associated with an organic active ingredient (validamycin nanopesticides, 1177 ± 220 nm)) and their microparticulate forms (i.e., permethrin, copper(II) sulfate pentahydrate (CuSO4·5H2O), acephate, and validamycin) widely used against agricultural pests, while also showing the merits of using Drosophila—a non-target in vivo eukaryotic model organism—in nanogenotoxicology studies. Significant biological effects were noted at the highest doses of permethrin (0.06 and 0.1 mM), permethrin nanopesticides (1 and 2.5 mM), CuSO4·5H2O (1 and 5 mM), acephate and acephate nanopesticides (1 and 5 mM, respectively), and validamycin and validamycin nanopesticides (1 and 2.5 mM, respectively). The results demonstrating the toxic/genotoxic potential of these nanopesticides through their impact on cellular internalization and gene expression represent significant contributions to future nanogenotoxicology studies.
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Affiliation(s)
- Eşref Demir
- Medical Laboratory Techniques Program, Vocational School of Health Services, Department of Medical Services and Techniques, Antalya Bilim University, Antalya 07190, Turkey
- Correspondence: ; Tel.: +90-242-245-0088; Fax: +90-242-245-0100
| | - Seyithan Kansız
- Faculty of Science, Department of Chemistry, Akdeniz University, Antalya 07070, Turkey
- Faculty of Science, Department of Chemistry, Ankara University, Ankara 07100, Turkey
| | - Mehmet Doğan
- Faculty of Medicine, Department of Histology and Embryology, Akdeniz University, Antalya 07070, Turkey
- Department of Histology and Embryology, Faculty of Medicine, Kırklareli University, Kırklareli 39100, Turkey
| | - Önder Topel
- Faculty of Science, Department of Chemistry, Akdeniz University, Antalya 07070, Turkey
| | - Gökhan Akkoyunlu
- Faculty of Medicine, Department of Histology and Embryology, Akdeniz University, Antalya 07070, Turkey
| | - Muhammed Yusuf Kandur
- Industrial Biotechnology and Systems Biology Research Group, Faculty of Engineering, Department of Bioengineering, Marmara University, İstanbul 34854, Turkey
| | - Fatma Turna Demir
- Medical Laboratory Techniques Program, Vocational School of Health Services, Department of Medical Services and Techniques, Antalya Bilim University, Antalya 07190, Turkey
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Malea P, Emmanouilidis A, Kevrekidis DP, Moustakas M. Copper uptake kinetics and toxicological effects of ionic Cu and CuO nanoparticles on the seaweed Ulva rigida. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:57523-57542. [PMID: 35352227 DOI: 10.1007/s11356-022-19571-7] [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: 11/15/2021] [Accepted: 03/01/2022] [Indexed: 06/14/2023]
Abstract
Copper ion (Cu2+) and copper oxide (CuO) nanoparticle (NP) ecotoxicity are of increasing concern as they are considered to be a potential risk to marine systems. This study represents the first attempt to evaluate CuO NP impacts on the seaweeds and Cu2+ on the chlorophyte Ulva rigida. Effects on oxidative stress, antioxidant defence markers, photosystem II function, thalli growth, and cell viability in U. rigida exposed for 4 up 72 h to1 and 5 mg L-1 Cu2+ and CuO NPs were examined. Hydrogen peroxide (H2O2) generation, superoxide dismutase (SOD) activity, malondialdehyde (MDA) content, and growth inhibition seemed to be reliable and early warning markers of toxicity. The most important variables of the principal component analysis (PCA): H2O2 generation, antioxidant stress markers, and growth-based toxicity index, were higher at 1 mg L-1 CuO NPs compared to CuSO4 and at 5 mg L-1 CuSO4 compared to CuO NPs. Intracellular uptake kinetics fit well to the Michaelis-Menten equation. The higher toxicity at 5 mg L-1 CuSO4 compared to 1 mg L-1 was due to the higher Cu uptake with increasing concentration, suggesting and higher accumulation ability. On the contrary, 1 mg L-1 CuO NPs induced more strongly toxicity effects than 5 mg L-1. The relatively stronger effect of CuO NPs at 1 mg L-1 than the respective CuSO4 concentration could be attributed to the higher rate of initial uptake (Vc) and the mean rate of Cu uptake [Cmax/(2 × Km)] at CuO NP treatment. The intracellular seaweed experimental threshold of Cu, which coincided with the onset of oxidative stress, was within the Cu concentration range recorded in Mediterranean Ulva spp., indicating that it may pose a substantial risk to marine environments.
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Affiliation(s)
- Paraskevi Malea
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, GR-54124, Thessaloniki, Macedonia, Greece.
| | - Antonios Emmanouilidis
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, GR-54124, Thessaloniki, Macedonia, Greece
| | - Dimitrios Phaedon Kevrekidis
- Laboratory of Forensic Medicine and Toxicology, Department of Medicine, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Michael Moustakas
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, GR-54124, Thessaloniki, Macedonia, Greece
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Roubeau Dumont E, Elger A, Azéma C, Castillo Michel H, Surble S, Larue C. Cutting-edge spectroscopy techniques highlight toxicity mechanisms of copper oxide nanoparticles in the aquatic plant Myriophyllum spicatum. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 803:150001. [PMID: 34492493 DOI: 10.1016/j.scitotenv.2021.150001] [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: 06/07/2021] [Revised: 08/24/2021] [Accepted: 08/25/2021] [Indexed: 06/13/2023]
Abstract
Copper oxide nanoparticles (CuO-NPs) have been increasingly released in aquatic ecosystems over the past decades as they are used in many applications. Cu toxicity to different organisms has already been highlighted in the literature, however toxicity mechanisms of the nanoparticulate form remain unclear. Here, we investigated the effect, transfer and localization of CuO-NPs compared to Cu salt on the aquatic plant Myriophyllum spicatum, an ecotoxicological model species with a pivotal role in freshwater ecosystems, to establish a clear mode of action. Plants were exposed to 0.5 mg/L Cu salt, 5 and 70 mg/L CuO-NPs during 96 h and 10 days. Several morphological and physiological endpoints were measured. Cu salt was found more toxic than CuO-NPs to plants based on all the measured endpoints despite a similar internal Cu concentration demonstrated via Cu mapping by micro particle-induced X-ray emission (μPIXE) coupled to Rutherford backscattering spectroscopy (RBS). Biomacromolecule composition investigated by FTIR converged between 70 mg/L CuO-NPs and Cu salt treatments after 10 days. This demonstrates that the difference of toxicity comes from a sudden massive Cu2+ addition from Cu salt similar to an acute exposure, versus a progressive leaching of Cu2+ from CuO-NPs representing a chronic exposure. Understanding NP toxicity mechanisms can help in the future conception of safer by design NPs and thus diminishing their impact on both the environment and humans.
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Affiliation(s)
- Eva Roubeau Dumont
- Laboratoire Ecologie Fonctionnelle et Environnement, Université de Toulouse, CNRS, Toulouse, France
| | - Arnaud Elger
- Laboratoire Ecologie Fonctionnelle et Environnement, Université de Toulouse, CNRS, Toulouse, France
| | - Céline Azéma
- Laboratoire Ecologie Fonctionnelle et Environnement, Université de Toulouse, CNRS, Toulouse, France
| | - Hiram Castillo Michel
- Beamline ID21, ESRF-The European Synchrotron, CS40220, 38043 Grenoble Cedex 9, France
| | - Suzy Surble
- Université Paris-Saclay, UMR 3685 CEA/CNRS NIMBE, CEA Saclay 91191, Gif-sur-Yvette, France
| | - Camille Larue
- Laboratoire Ecologie Fonctionnelle et Environnement, Université de Toulouse, CNRS, Toulouse, France.
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9
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da Silva Santos J, da Silva Pontes M, Dos Santos Nobrega MA, Santiago EF. Effects of substrates containing different concentrations of sewage sludge on physiological parameters and quality of Alibertia edulis (Rubiaceae) seedlings. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:25984-25992. [PMID: 33483927 DOI: 10.1007/s11356-021-12492-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 01/11/2021] [Indexed: 06/12/2023]
Abstract
Sewage sludge (SS), a solid residue of effluent treatment, is rich in organic matter and nutrients, while also containing heavy metals and other potential contaminants. The feasibility of employing SS as a substrate component for seedling production depends on its composition and dose, as well as on the tolerance limit of individual plant species. To expand the knowledge base on the use of SS in the production of plants native to the Brazilian Cerrado biome, we evaluated the physiological responses and quality of Alibertia edulis seedlings grown under distinct SS concentrations. Chlorophyll a fluorescence (ChlF), stomatal conductance (gs), leaf temperature (Lt), biomass, growth, and seedling quality were investigated. At 25%, SS improved growth, biomass, and seedling quality, while substrates containing 50% or more SS affected gs, Lt, and ChlF. Seedling quality was strongly worsened by SS at 75% and 100%, as shown by lower biomass and impaired growth, including leaf symmetry loss and leaf deformities possibly related to contaminants, particularly heavy metals. Accordingly, we conclude that SS exhibited potential as a fertilizer at concentrations below 50%, but exerted a toxic effect on seedlings at higher concentrations.
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Affiliation(s)
- Jaqueline da Silva Santos
- Natural Resources Program, Center for Natural Resources Studies (CERNA), Mato Grosso do Sul State University (UEMS), Dourados, MS, 79804-970, Brazil.
| | - Montcharles da Silva Pontes
- Natural Resources Program, Center for Natural Resources Studies (CERNA), Mato Grosso do Sul State University (UEMS), Dourados, MS, 79804-970, Brazil
| | - Michele Aparecida Dos Santos Nobrega
- Natural Resources Program, Center for Natural Resources Studies (CERNA), Mato Grosso do Sul State University (UEMS), Dourados, MS, 79804-970, Brazil
| | - Etenaldo Felipe Santiago
- Natural Resources Program, Center for Natural Resources Studies (CERNA), Mato Grosso do Sul State University (UEMS), Dourados, MS, 79804-970, Brazil
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10
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Grillo R, Fraceto LF, Amorim MJB, Scott-Fordsmand JJ, Schoonjans R, Chaudhry Q. Ecotoxicological and regulatory aspects of environmental sustainability of nanopesticides. JOURNAL OF HAZARDOUS MATERIALS 2021; 404:124148. [PMID: 33059255 DOI: 10.1016/j.jhazmat.2020.124148] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/29/2020] [Accepted: 09/28/2020] [Indexed: 05/25/2023]
Abstract
Recent years have seen the development of various colloidal formulations of pesticides and other agrochemicals aimed at use in sustainable agriculture. These formulations include inorganic, organic or hybrid particulates, or nanocarriers composed of biodegradable polymers, that can provide a better control of the release of active ingredients. The very small particle sizes and high surface areas of nanopesticides may however also lead to some unintended (eco)toxicological effects due to the way in which they interact with the target and non-target species and the environment. The current level of knowledge on ecotoxicological effects of nanopesticides is scarce, especially in regard to the fate and behaviour of such formulations in the environment. Nanopesticides will however have to cross a stringent regulatory scrutiny before marketing in most countries for health and environmental risks under a range of regulatory frameworks that require pre-market notification, risk assessment and approval, followed by labelling, post-market monitoring and surveillance. This review provides an overview of the key regulatory and ecotoxicological aspects relating to nanopesticides that will need to be considered for environmentally-sustainable use in agriculture.
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Affiliation(s)
- Renato Grillo
- Department of Physics and Chemistry, São Paulo State University (UNESP), Avenida Brasil, 56, Centro, 15385-000 Ilha Solteira, SP, Brazil.
| | - Leonardo F Fraceto
- Department of Environmental Engineering, São Paulo State University (UNESP), Avenida Três de Março, 511, Alto da Boa Vista, 18087-180 Sorocaba, SP, Brazil
| | - Mónica J B Amorim
- Department of Biology & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | | | - Reinhilde Schoonjans
- Scientific Committee and Emerging Risks Unit, European Food Safety Authority, Via Carlo Magno 1/A, 43123 Parma, Italy
| | - Qasim Chaudhry
- University of Chester, Parkgate Road, Chester CH1 4BJ, United Kingdom
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da Silva Santos J, da Silva Pontes M, Grillo R, Fiorucci AR, José de Arruda G, Santiago EF. Physiological mechanisms and phytoremediation potential of the macrophyte Salvinia biloba towards a commercial formulation and an analytical standard of glyphosate. CHEMOSPHERE 2020; 259:127417. [PMID: 32623201 DOI: 10.1016/j.chemosphere.2020.127417] [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: 04/07/2020] [Revised: 06/03/2020] [Accepted: 06/12/2020] [Indexed: 06/11/2023]
Abstract
Glyphosate (Gly) is the most widely used herbicide in the world and has broad-spectrum and non-selective activity. Its indiscriminate use hence risks contamination of water bodies and can affect living organisms, especially sensitive or resistant non-target plants. Despite this, studies on physiological mechanisms and Gly remediation in Neotropical aquatic plants remain limited. This study aims to evaluate the physiological mechanisms of the aquatic macrophyte Salvinia biloba on exposure to different concentrations of a Gly commercial formulation (Gly-CF) and a Gly analytical standard (Gly-AS). Furthermore, using square-wave voltammetry (SWV), we determined whether the studied plant could remove Gly from water. Our data suggest that Gly-AS and Gly-CF induce similar physiological responses in S. biloba. However, Gly-CF was more phytotoxic. Depending on the concentration, the two forms of Gly affected the plants, decreasing the chlorophyll a and b contents and the photosystem II (PSII) photochemical activity. The data also revealed that Gly promoted oxidative stress and increased the shikimic acid concentration. At the same time, the plants removed Gly from water, with 100% removal for 1 mg L-1 Gly and above 60% removal for the other concentrations studied. Therefore, our results suggest that S. biloba may be a potential phytoremediation agent for low Gly concentrations, since 1 mg L-1 Gly was completely removed and exhibited low phytotoxicity. This study deepens our scientific understanding of the Gly impact on and the phytoremediation potential of S. biloba.
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Affiliation(s)
- Jaqueline da Silva Santos
- Grupo de Estudos em Recursos Vegetais, Programa de Pós-Graduação em Recursos Naturais, Universidade Estadual de Mato Grosso do Sul, CP 350, 79804-970, Dourados, MS, Brazil; Grupo de Estudos em Eletroquímica, Programa de Pós-Graduação em Recursos Naturais, Universidade Estadual de Mato Grosso do Sul, CP 350, 79804-970, Dourados, MS, Brazil
| | - Montcharles da Silva Pontes
- Grupo de Estudos em Recursos Vegetais, Programa de Pós-Graduação em Recursos Naturais, Universidade Estadual de Mato Grosso do Sul, CP 350, 79804-970, Dourados, MS, Brazil
| | - Renato Grillo
- Laboratório de Nanoquímica Ambiental, Departamento de Física e Química, Faculdade de Engenharia de Ilha Solteira, Universidade Estadual Paulista (UNESP), Avenida Brasil, 56, Centro, 15385-000, Ilha Solteira, SP, Brazil
| | - Antonio Rogério Fiorucci
- Grupo de Estudos em Eletroquímica, Programa de Pós-Graduação em Recursos Naturais, Universidade Estadual de Mato Grosso do Sul, CP 350, 79804-970, Dourados, MS, Brazil
| | - Gilberto José de Arruda
- Grupo de Estudos em Eletroquímica, Programa de Pós-Graduação em Recursos Naturais, Universidade Estadual de Mato Grosso do Sul, CP 350, 79804-970, Dourados, MS, Brazil
| | - Etenaldo Felipe Santiago
- Grupo de Estudos em Recursos Vegetais, Programa de Pós-Graduação em Recursos Naturais, Universidade Estadual de Mato Grosso do Sul, CP 350, 79804-970, Dourados, MS, Brazil.
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Forini MML, Antunes DR, Cavalcante LAF, Pontes MS, Biscalchim ÉR, Sanches AO, Santiago EF, Fraceto LF, Grillo R. Fabrication and Characterization of a Novel Herbicide Delivery System with Magnetic Collectability and Its Phytotoxic Effect on Photosystem II of Aquatic Macrophyte. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:11105-11113. [PMID: 32915575 DOI: 10.1021/acs.jafc.0c03645] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The use of nano- and microparticles as a release system for agrochemicals has been increasing in agricultural sector. However, the production of eco-friendly and smart carriers that can be easily handled in the environment is still a challenge for this technology. In this context, we have developed a biodegradable release system for the herbicide atrazine with magnetic properties. Herein, we investigated the (a) physicochemical properties of the atrazine-loaded magnetic poly(ε-caprolactone) microparticles (MPs:ATZ), (b) in vitro release kinetic profile of the herbicide, and (c) phytotoxicity toward photosynthesis in the aquatic fern Azolla caroliniana. The encapsulation efficiency of the herbicide in the MPs:ATZ was ca. 69%, yielding spherical microparticles with a diameter of ca. 100 μm, a sustained-release profile, and easily manipulated with an external magnetic field. Also, phytotoxicity issues showed that the MPs:ATZ maintained their herbicidal activity via inhibition of PSII, showing lower toxicity compared with the nonencapsulated ATZ at 0.01 and 0.02 μmol·L-1. Therefore, this technology may conveniently promote a novel magnetic controlled release of the herbicide ATZ (with the potential to be collected from a watercourse) and act as a nutrient boost to the nontarget plant, with good herbicidal activity and reduced risk to the environment.
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Affiliation(s)
- Mariana M L Forini
- Department of Physics and Chemistry, School of Engineering, São Paulo State University (UNESP), Ilha Solteira, SP 15385-000, Brazil
| | - Débora R Antunes
- Department of Physics and Chemistry, School of Engineering, São Paulo State University (UNESP), Ilha Solteira, SP 15385-000, Brazil
| | - Luiz A F Cavalcante
- Department of Physics and Chemistry, School of Engineering, São Paulo State University (UNESP), Ilha Solteira, SP 15385-000, Brazil
| | - Montcharles S Pontes
- Natural Resources Program, Center for Natural Resources Studies (CERNA), Mato Grosso do Sul State University (UEMS), Dourados, Mato Grosso do Sul 79804-970, Brazil
| | - Érica R Biscalchim
- Department of Physics and Chemistry, School of Engineering, São Paulo State University (UNESP), Ilha Solteira, SP 15385-000, Brazil
| | - Alex O Sanches
- Department of Physics and Chemistry, School of Engineering, São Paulo State University (UNESP), Ilha Solteira, SP 15385-000, Brazil
| | - Etenaldo F Santiago
- Natural Resources Program, Center for Natural Resources Studies (CERNA), Mato Grosso do Sul State University (UEMS), Dourados, Mato Grosso do Sul 79804-970, Brazil
| | - Leonardo F Fraceto
- Department of Environmental Engineering, Institute of Science and Technology (ICTS), São Paulo State University (UNESP), Sorocaba, SP 18087-180, Brazil
| | - Renato Grillo
- Department of Physics and Chemistry, School of Engineering, São Paulo State University (UNESP), Ilha Solteira, SP 15385-000, Brazil
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