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Curcuruto G, Scamporrino AA, Puglisi R, Nicotra G, Sfuncia G, Impellizzeri G, Dattilo S, Kahru A, Sihtmäe M, Aruoja V, Blinova I, Carroccio SC. Design of High-Performance Molecular Imprinted Magnetic Nanoparticles-Loaded Hydrogels for Adsorption and Photodegradation of Antibiotics from Wastewater. Polymers (Basel) 2024; 16:2096. [PMID: 39125126 PMCID: PMC11314038 DOI: 10.3390/polym16152096] [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: 06/28/2024] [Revised: 07/18/2024] [Accepted: 07/20/2024] [Indexed: 08/12/2024] Open
Abstract
A hydrogel formulation of 2-hydroxy ethyl methacrylate (HEMA) containing covalently linked magnetite nanoparticles was developed to actively facilitate the selective removal and photocatalytic degradation of antibiotics. To this purpose, the hybrid materials were molecularly imprinted with Lomefloxacin (Lome) or Ciprofloxacin (Cipro), achieving a selectivity of 60% and 45%, respectively, starting from a solution of XX concentration. After the adsorption, the embedded magnetite was used with the double function of (i) magnetically removing the material from water and (ii) triggering photo-Fenton (PF) reactions assisted by UVA light and H2O2 to oxidize the captured antibiotic. The success of the material design was confirmed by a comprehensive characterization of the system from chemical-physical and morphological perspectives. Adsorption and degradation tests demonstrated the material's ability to efficiently degrade Lome until its complete disappearance from the electrospray ionization (ESI) mass spectra. Regeneration tests showed the possibility of reusing the material for up to three cycles. Ecotoxicological tests using algae Rapidocelis subcapitata, crustaceans Daphnia magna, and bacteria Vibrio fischeri were performed to evaluate the ecosafety of our synthesized materials.
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Affiliation(s)
- Giusy Curcuruto
- Institute for Polymers, Composites, and Biomaterials CNR-IPCB, Via Paolo Gaifami 18, 95126 Catania, Italy; (G.C.); (R.P.); (S.D.); (S.C.C.)
| | - Andrea A. Scamporrino
- Institute for Polymers, Composites, and Biomaterials CNR-IPCB, Via Paolo Gaifami 18, 95126 Catania, Italy; (G.C.); (R.P.); (S.D.); (S.C.C.)
| | - Roberta Puglisi
- Institute for Polymers, Composites, and Biomaterials CNR-IPCB, Via Paolo Gaifami 18, 95126 Catania, Italy; (G.C.); (R.P.); (S.D.); (S.C.C.)
- Department of Chemical Sciences, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy;
| | - Giuseppe Nicotra
- Institute for Microelectronics and Microstructures CNR-IMM, Zona Industriale Strada VIII, 5, 95121 Catania, Italy;
| | - Gianfranco Sfuncia
- Department of Chemical Sciences, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy;
| | - Giuliana Impellizzeri
- Institute for Microelectronics and Microstructures CNR-IMM, Via Santa Sofia 64, 95123 Catania, Italy;
| | - Sandro Dattilo
- Institute for Polymers, Composites, and Biomaterials CNR-IPCB, Via Paolo Gaifami 18, 95126 Catania, Italy; (G.C.); (R.P.); (S.D.); (S.C.C.)
| | - Anne Kahru
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia; (M.S.); (V.A.); (I.B.)
| | - Mariliis Sihtmäe
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia; (M.S.); (V.A.); (I.B.)
| | - Villem Aruoja
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia; (M.S.); (V.A.); (I.B.)
| | - Irina Blinova
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia; (M.S.); (V.A.); (I.B.)
| | - Sabrina Carola Carroccio
- Institute for Polymers, Composites, and Biomaterials CNR-IPCB, Via Paolo Gaifami 18, 95126 Catania, Italy; (G.C.); (R.P.); (S.D.); (S.C.C.)
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Revel M, Medjoubi K, Charles S, Hursthouse A, Heise S. Mechanistic analysis of the sub chronic toxicity of La and Gd in Daphnia magna based on TKTD modelling and synchrotron X-ray fluorescence imaging. CHEMOSPHERE 2024; 353:141509. [PMID: 38403125 DOI: 10.1016/j.chemosphere.2024.141509] [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: 08/02/2023] [Revised: 12/19/2023] [Accepted: 02/19/2024] [Indexed: 02/27/2024]
Abstract
The release of lanthanides (Ln) into the environment has increased in recent decades due to their expanding applications in society. Studying their toxicity in aquatic ecosystems is urgent and challenging, with contradictory evidence presented in the literature. This study compared the biodistribution of La and Gd in Daphnia magna exposed to sub-chronic conditions and developed the first Toxicokinetic-Toxicodynamic (TKTD) model for these lanthanides with this model crustacean. D. magna were initially exposed for 7 days to concentrations close to the LC50 of La (2.10 mg L-1) and Gd (1.70 mg L-1). After exposure, half of the live daphnids were introduced in a clean media to allow depuration over 24 h, while the other organisms were directly prepared for synchrotron imaging measurements. Synchrotron X-ray fluorescence analysis revealed that metal distribution in the organisms was similar for both La and Gd, predominantly localized in the intestinal tract, even after the depuration process. These results indicate that ingested metal can adversely affect organisms under sub-chronic exposure conditions, highlighting the importance of using nominal concentrations as a more suitable indicator of metal bioavailability for risk assessment. The General Unified Threshold Model of Survival (GUTS) TKTD framework, in its reduced form (GUTS-RED), was developed for La and Gd using dissolved and nominal concentrations. D. magna were exposed for 7 days to concentrations from 0.5 to 5 mg L-1 of La or Gd and mortality monitored daily. The mechanistic model revealed a faster toxicokinetics for La than Gd and a higher toxicity for Gd than La in the organism. This study confirmed, despite similar chemical properties, the variation in both toxicity and toxicokinetics between these two metals.
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Affiliation(s)
- Marion Revel
- Faculty of Life Sciences, Hamburg University of Applied Science, Ulmenliet 20, D-21033 Hamburg, Germany; University of the West of Scotland, Paisley, PA1 2BE, UK.
| | - Kadda Medjoubi
- SOLEIL Synchrotron, L'Orme des Merisiers, Dptale 128, 91190 Saint-Aubin, France
| | - Sandrine Charles
- University Lyon 1, CNRS UMR 5558, Laboratory of Biometry and Evolutionary Biology, Villeurbanne Cedex, 69622, France
| | | | - Susanne Heise
- Faculty of Life Sciences, Hamburg University of Applied Science, Ulmenliet 20, D-21033 Hamburg, Germany
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Ekner-Grzyb A, Jurga N, Venâncio C, Grzyb T, Grześkowiak BF, Lopes I. Ecotoxicity of non- and PEG-modified lanthanide-doped nanoparticles in aquatic organisms. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 259:106548. [PMID: 37130483 DOI: 10.1016/j.aquatox.2023.106548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 04/18/2023] [Accepted: 04/25/2023] [Indexed: 05/04/2023]
Abstract
Various types of nanoparticles (NPs) have been widely investigated recently and applied in areas such as industry, the energy sector, and medicine, presenting the risk of their release into the environment. The ecotoxicity of NPs depends on several factors such as their shape and surface chemistry. Polyethylene glycol (PEG) is one of the most often used compounds for functionalisation of NP surfaces, and its presence on the surfaces of NPs may affect their ecotoxicity. Therefore, the present study aimed to assess the influence of PEG modification on the toxicity of NPs. As biological model, we chose freshwater microalgae, a macrophyte and invertebrates, which to a considerable extent enable the assessment of the harmfulness of NPs to freshwater biota. SrF2:Yb3+,Er3+ NPs were used to represent the broad group of up-converting NPs, which have been intensively investigated for medical applications. We quantified the effects of the NPs on five freshwater species representing three trophic levels: the green microalgae Raphidocelis subcapitata and Chlorella vulgaris, the macrophyte Lemna minor, the cladoceran Daphnia magna and the cnidarian Hydra viridissima. Overall, H. viridissima was the most sensitive species to NPs, which affected its survival and feeding rate. In this case, PEG-modified NPs were slightly more toxic than bare ones (non-significant results). No effects were observed on the other species exposed to the two NPs at the tested concentrations. The tested NPs were successfully imaged in the body of D. magna using confocal microscopy; both NPs were detected in the D. magna gut. The results obtained reveal that SrF2:Yb3+,Er3+ NPs can be toxic to some aquatic species; however, the structures have low toxicity effects for most of the tested species.
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Affiliation(s)
- Anna Ekner-Grzyb
- Department of Plant Ecophysiology, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland.
| | - Natalia Jurga
- Department of Rare Earths, Faculty of Chemistry, Adam Mickiewicz University, Poznań, Poland
| | - Cátia Venâncio
- CESAM & Department of Biology, University of Aveiro, Aveiro, Portugal
| | - Tomasz Grzyb
- Department of Rare Earths, Faculty of Chemistry, Adam Mickiewicz University, Poznań, Poland
| | | | - Isabel Lopes
- CESAM & Department of Biology, University of Aveiro, Aveiro, Portugal
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Salvatore MM, Siciliano A, Staropoli A, Vinale F, Nicoletti R, DellaGreca M, Guida M, Salvatore F, Iuliano M, Andolfi A, De Tommaso G. Interaction of the Fungal Metabolite Harzianic Acid with Rare-Earth Cations (Pr 3+, Eu 3+, Ho 3+, Tm 3+). MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27196468. [PMID: 36235005 PMCID: PMC9571137 DOI: 10.3390/molecules27196468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 09/27/2022] [Accepted: 09/28/2022] [Indexed: 11/06/2022]
Abstract
Rare-earth elements (REEs) are in all respect a class of new contaminants that may have toxic effects on organisms and microorganisms and information on their interactions with natural ligands should be of value to predict and control their diffusion in natural environments. In the current study, we investigate interactions of tripositive cations of praseodymium, europium, holmium, and thulium with harzianic acid (H2L), a secondary metabolite produced by selected strains of fungi belonging to the Trichoderma genus. We applied the same techniques and workflow previously employed in an analogous study concerning lanthanum, neodymium, samarium, and gadolinium tripositive cations. Therefore, in the current study, HPLC-ESI-HRMS experiments, circular dichroism (CD), and UV-Vis spectrophotometric absorption data, as well as accurate pH measurements, were applied to characterize bonding interactions between harzianic acid and Pr3+, Eu3+, Ho3+, and Tm3+ cations. Problems connected to the low solubility of harzianic acid in water were overcome by employing a 0.1 M NaClO4/(CH3OH + H2O 50/50 w/w) mixed solvent. For Pr3+, Ho3+, and Tm3+, only the mono complexes PrL+, HoL+, and TmL+ were detected and their formation constant determined. Eu3+ forms almost exclusively the bis complex EuL2− for which the corresponding formation constant is reported; under our experimental conditions, the mono complex EuL+ is irrelevant. Combining the results of the present and previous studies, a picture of interactions of harzianic acid with rare-earth cations extending over 8 of the 17 REEs can be composed. In order to complement chemical information with toxicological information, a battery of bioassays was applied to evaluate the effects of praseodymium, europium, holmium, and thulium tripositive cations on a suite of bioindicators including Aliivibrio fischeri (Gram-negative bacterium), Raphidocelis subcapitata (green alga), and Daphnia magna (microcrustacean), and median effective concentration (EC50) values of Pr3+, Eu3+, Ho3+, and Tm3+ for the tested species were assessed.
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Affiliation(s)
- Maria Michela Salvatore
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
- Institute for Sustainable Plant Protection, National Research Council, 80055 Portici, Italy
- Correspondence: (M.M.S.); (M.I.); (A.A.); Tel.: +39-081-2539179 (A.A.)
| | | | - Alessia Staropoli
- Institute for Sustainable Plant Protection, National Research Council, 80055 Portici, Italy
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy
| | - Francesco Vinale
- Institute for Sustainable Plant Protection, National Research Council, 80055 Portici, Italy
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, 80137 Naples, Italy
- BAT Center-Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology, University of Naples Federico II, 80055 Portici, Italy
| | - Rosario Nicoletti
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy
- Council for Agricultural Research and Economics, Research Centre for Olive, Fruit and Citrus Crops, 81100 Caserta, Italy
| | - Marina DellaGreca
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
| | - Marco Guida
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
- BAT Center-Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology, University of Naples Federico II, 80055 Portici, Italy
| | - Francesco Salvatore
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Mauro Iuliano
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
- Correspondence: (M.M.S.); (M.I.); (A.A.); Tel.: +39-081-2539179 (A.A.)
| | - Anna Andolfi
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
- BAT Center-Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology, University of Naples Federico II, 80055 Portici, Italy
- Correspondence: (M.M.S.); (M.I.); (A.A.); Tel.: +39-081-2539179 (A.A.)
| | - Gaetano De Tommaso
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
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Blinova I, Lukjanova A, Vija H, Kahru A. Long-Term Toxicity of Gadolinium to the Freshwater Crustacean Daphnia magna. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2022; 108:848-853. [PMID: 34636960 DOI: 10.1007/s00128-021-03388-0] [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: 07/30/2021] [Accepted: 09/28/2021] [Indexed: 06/13/2023]
Abstract
The lanthanides are considered emerging contaminants but information on their long-term toxicity to aquatic species under environmentally relevant conditions is scarce. We aimed to fill this gap by evaluating the long-term adverse effects of gadolinium on the freshwater model-crustacean Daphnia magna. The exposure of D. magna for up to 39 days to 0.1 mg Gd/L (a 21-days chronic toxicity NOEC value derived by us formerly) in the lake water had no negative effect (p > 0.05) on vitality, size and reproduction of parent animals as well as their offspring. Thus, assumingly the current Gd contamination levels of surface waters pose no hazard to aquatic crustaceans that in general are very sensitive to various pollutants. Moreover, presence of 0.1 mg Gd/L in the lake water even mitigated the long-term toxic effect of 0.2 mg Ni/L (studied as a model co-contaminant) to D. magna's vitality and productivity.
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Affiliation(s)
- Irina Blinova
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618, Tallinn, Estonia.
| | - Aljona Lukjanova
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618, Tallinn, Estonia
| | - Heiki Vija
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618, Tallinn, Estonia
| | - Anne Kahru
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618, Tallinn, Estonia
- Estonian Academy of Sciences, Kohtu 6, 10130, Tallinn, Estonia
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De Tommaso G, Salvatore MM, Siciliano A, Staropoli A, Vinale F, Nicoletti R, DellaGreca M, Guida M, Salvatore F, Iuliano M, Andolfi A. Interaction of the Fungal Metabolite Harzianic Acid with Rare-Earth Cations (La 3+, Nd 3+, Sm 3+, Gd 3+). MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27061959. [PMID: 35335320 PMCID: PMC8954165 DOI: 10.3390/molecules27061959] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 11/16/2022]
Abstract
Rare-earth elements are emerging contaminants of soil and water bodies which destiny in the environment and effects on organisms is modulated by their interactions with natural ligands produced by bacteria, fungi and plants. Within this framework, coordination by harzianic acid (H2L), a Trichoderma secondary metabolite, of a selection of tripositive rare-earth cations Ln3+ (Ln3+ = La3+, Nd3+, Sm3+, and Gd3+) was investigated at 25 °C, and in a CH3OH/0.1 M NaClO4 (50/50 w/w) solvent, using mass spectrometry, circular dichroism, UV-Vis spectrophotometry, and pH measurements. Experimental data can be satisfactorily explained by assuming, for all investigated cations, the formation of a mono-complex (LnL+) and a bis-complex (LnL2-). Differences were found between the formation constants of complexes of different Ln3+ cations, which can be correlated with ionic radius. Since gadolinium is the element that raises the most concern among lanthanide elements, its effects on organisms at different levels of biological organization were explored, in the presence and absence of harzianic acid. Results of ecotoxicological tests suggest that harzianic acid can decrease gadolinium biotoxicity, presumably because of complex formation with Gd3+.
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Affiliation(s)
- Gaetano De Tommaso
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (G.D.T.); (M.M.S.); (M.D.)
| | - Maria Michela Salvatore
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (G.D.T.); (M.M.S.); (M.D.)
- Institute for Sustainable Plant Protection, National Research Council, 80055 Portici, Italy; (A.S.); (F.V.)
| | - Antonietta Siciliano
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (A.S.); (M.G.)
| | - Alessia Staropoli
- Institute for Sustainable Plant Protection, National Research Council, 80055 Portici, Italy; (A.S.); (F.V.)
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy;
| | - Francesco Vinale
- Institute for Sustainable Plant Protection, National Research Council, 80055 Portici, Italy; (A.S.); (F.V.)
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, 80137 Naples, Italy
- BAT Center—Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology, University of Naples Federico II, 80055 Portici, Italy
| | - Rosario Nicoletti
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy;
- Council for Agricultural Research and Economics, Research Centre for Olive, Fruit and Citrus Crops, 81100 Caserta, Italy
| | - Marina DellaGreca
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (G.D.T.); (M.M.S.); (M.D.)
| | - Marco Guida
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (A.S.); (M.G.)
| | - Francesco Salvatore
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (G.D.T.); (M.M.S.); (M.D.)
- Correspondence: (F.S.); (M.I.); (A.A.); Tel.: +39-081-2539179 (A.A.)
| | - Mauro Iuliano
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (G.D.T.); (M.M.S.); (M.D.)
- Correspondence: (F.S.); (M.I.); (A.A.); Tel.: +39-081-2539179 (A.A.)
| | - Anna Andolfi
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (G.D.T.); (M.M.S.); (M.D.)
- BAT Center—Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology, University of Naples Federico II, 80055 Portici, Italy
- Correspondence: (F.S.); (M.I.); (A.A.); Tel.: +39-081-2539179 (A.A.)
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Advances in the Fate of Rare Earth Elements, REE, in Transitional Environments: Coasts and Estuaries. WATER 2022. [DOI: 10.3390/w14030401] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The production of rare earth elements, REE, has significantly increased over the past years, in parallel with the latest advances in nanotechnologies and representing a new group of emerging contaminants. They find application in construction, transport, agriculture, electronics, catalysis, and biomedicine. Their extraordinary intrinsic characteristics are fundamental for overcoming current technological challenges. The accumulation of REE is consistent in near-shore waters being affected by runoff, wastewater discharge, and proximity to built-up areas. Bioavailability in water, sediments, and accumulation in marine biota as well their endocrine disruptor effect is mostly unknown. There is a significant gap of knowledge on the ecotoxicological behaviour of REE in marine areas. The existing investigations have been performed inside well-mixed estuarine systems, due to complex hydrodynamics and multiple sediment transport situations. This hampers the definition of regulatory thresholds for REE concentrations and emissions. The review summarizes the existing information on REE geochemistry and physicochemical conditions influencing dissolution, surface complexation reactions, and distribution at the continent–ocean interface, as well as their speciation, bioavailability, and detrimental effects on living organisms. Strategies for reducing REE usage and inputs are also discussed.
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Aharchaou I, Bahloul F, Fortin C. Competition Among Trivalent Elements (Al, Eu, Fe, Gd, Nd, Tm, and Y) for Uptake in Algae and Applicability of the Biotic Ligand Model. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 81:612-620. [PMID: 33219836 DOI: 10.1007/s00244-020-00786-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 11/10/2020] [Indexed: 06/11/2023]
Abstract
Rare earth elements (REE) are essential in many new technologies. While anthropogenic dispersion of REE into the environment are expected in the future, their biogeochemical fate and interactions at biological interfaces are still largely unexplored. Due to their chemical nature (generally trivalent and hard metals), REE can potentially compete among themselves or with other ubiquitous trivalent metals for uptake sites at the surface of aquatic organisms. In the current study, the bioavailability and uptake of gadolinium (Gd) was assessed in the green alga, Chlamydomonas reinhardtii, while in the presence of various trivalent elements (Al, Eu, Fe, Nd, Tm, and Y). In the absence of competitors, Gd uptake was well described by a Michaelis-Menten equation with an affinity constant (KGd) of 107.1 and a maximum internalization flux (Jmax) of 1.95 ± 0.09 × 10-2 amol µm-2 min-1. Neither Al(III) nor Fe(III) had notable effects on Gd uptake in the conditions tested; however, Gd uptake was reduced with increasing concentrations of other REE. These had binding constants with uptake sites very similar to that of Gd (KNd, Y, Tm, Eu = 107.0). Our results suggest that the different REE likely share common transport sites and that the biotic ligand model (BLM) can be used to predict their uptake.
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Affiliation(s)
- I Aharchaou
- ÉcotoQ, Institut National de la Recherche Scientifique, Centre Eau Terre Environnement, 490 de la Couronne, Québec, QC, G1K 9A9, Canada
| | - F Bahloul
- ÉcotoQ, Institut National de la Recherche Scientifique, Centre Eau Terre Environnement, 490 de la Couronne, Québec, QC, G1K 9A9, Canada
| | - C Fortin
- ÉcotoQ, Institut National de la Recherche Scientifique, Centre Eau Terre Environnement, 490 de la Couronne, Québec, QC, G1K 9A9, Canada.
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Siciliano A, Guida M, Serafini S, Micillo M, Galdiero E, Carfagna S, Salbitani G, Tommasi F, Lofrano G, Padilla Suarez EG, Gjata I, Brouziotis AA, Trifuoggi M, Liguori R, Race M, Fabbricino M, Libralato G. Long-term multi-endpoint exposure of the microalga Raphidocelis subcapitata to lanthanum and cerium. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 790:148229. [PMID: 34380244 DOI: 10.1016/j.scitotenv.2021.148229] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 05/27/2021] [Accepted: 05/29/2021] [Indexed: 06/13/2023]
Abstract
Significant release of rare earth elements (REEs) into the environment is mainly due to active or abandoned mining sites, but their presence is globally increasing due to their use in several industrial sectors. The effects on primary producers as Raphidocelis subcapitata are still limited. This research focused on La and Ce as the two most widespread REEs that can be currently found up to hundreds of μg/L in water and wastewater. Microalgae were exposed to La and Ce for 3 days (pH = 7.8) (short-term exposure) to derive the effective concentrations inhibiting the growth on 10% (EC10) of the exposed population. EC10 values (0.5 mg/L of La and 0.4 mg/L of Ce) were used for the 28 days long-term exposure (renewal test) to observe after 7, 14, 21, and 28 days on a multi-endpoint basis microalgae growth inhibition (GI), biomarkers of stress (reactive oxygen species (ROS), superoxide dismutase (SOD), and catalase (CAT)), and bioconcentration. Results evidenced that La and Ce EC10 increased GI (day 28) up to 38% and 28%, respectively. ROS, CAT, and SOD activities showed differential responses from day 7 to day 14, 21, and 28, suggesting, in most of the cases, that La and Ce effects were counteracted (i.e., being the values at day 28 not significantly different, p > 0.05, from the relative negative controls), except for La-related ROS activities. La and Ce significantly bioconcentrated in microalgae populations up to 2- and 5-fold (i.e., at day 28 compared to day 7), in that order. Bioconcentrated La and Ce were up to 3157 and 1232 μg/g dry weight (day 28), respectively. These results suggested that low La and Ce concentrations can be slightly toxic to R. subcapitata having the potential to be bioaccumulated and potentially transferred along the food web.
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Affiliation(s)
- Antonietta Siciliano
- Department of Biology, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia 26, 80126 Naples, Italy
| | - Marco Guida
- Department of Biology, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia 26, 80126 Naples, Italy; Centro Servizi Metrologici e Tecnologici Avanzati (CeSMA), Complesso Universitario di Monte Sant'Angelo, Via Cinthia 26, 80126 Naples, Italy
| | - Sara Serafini
- Department of Biology, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia 26, 80126 Naples, Italy
| | - Maria Micillo
- Department of Biology, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia 26, 80126 Naples, Italy
| | - Emilia Galdiero
- Department of Biology, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia 26, 80126 Naples, Italy
| | - Simona Carfagna
- Department of Biology, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia 26, 80126 Naples, Italy
| | - Giovanna Salbitani
- Department of Biology, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia 26, 80126 Naples, Italy
| | - Franca Tommasi
- Department of Biology, Università degli Studi di Bari Aldo Moro, Bari, Italy
| | - Giusy Lofrano
- Centro Servizi Metrologici e Tecnologici Avanzati (CeSMA), Complesso Universitario di Monte Sant'Angelo, Via Cinthia 26, 80126 Naples, Italy.
| | - Edith Guadalupe Padilla Suarez
- Department of Biology, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia 26, 80126 Naples, Italy
| | - Isidora Gjata
- Department of Biology, Università degli Studi di Bari Aldo Moro, Bari, Italy
| | - Antonios Apostolos Brouziotis
- Department of Biology, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia 26, 80126 Naples, Italy; Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia 26, 80126 Naples, Italy
| | - Marco Trifuoggi
- Centro Servizi Metrologici e Tecnologici Avanzati (CeSMA), Complesso Universitario di Monte Sant'Angelo, Via Cinthia 26, 80126 Naples, Italy; Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia 26, 80126 Naples, Italy
| | - Renato Liguori
- Department of Science and Technology, University of Naples Parthenope, Naples, Italy
| | - Marco Race
- Department of Civil and Mechanical Engineering, Università di Cassino e del Lazio Meridionale, Cassino, Italy
| | - Massimiliano Fabbricino
- University of Naples Federico II, Department of Civil, Architectural and Environmental Engineering, Via Claudio 21, 80125 Napoli, Italy
| | - Giovanni Libralato
- Department of Biology, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia 26, 80126 Naples, Italy.
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10
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Romero-Freire A, González V, Groenenberg JE, Qiu H, Auffan M, Cotelle S, Giamberini L. Cytotoxicity and genotoxicity of lanthanides for Vicia faba L. are mediated by their chemical speciation in different exposure media. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 790:148223. [PMID: 34111781 DOI: 10.1016/j.scitotenv.2021.148223] [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: 02/08/2021] [Revised: 05/25/2021] [Accepted: 05/29/2021] [Indexed: 06/12/2023]
Abstract
A comprehensive study of the toxicity of lanthanides (LN) in relation to the media composition will enhance the prediction of their potential adverse effects for living organisms. Here we examined the effect of different media on the V. faba root elongation and on the cytotoxic (mitotic index) and the genotoxic (micronucleated cell number) effects from toxicity tests with Ce, Gd and Lu (100, 800 and 6400 μg L-1). Three different exposure media were selected: the standard Hoagland media (SH); an alternative SH, without phosphates (SH-P); and distilled water (DW). In the SH no cyto-genotoxic effects were observed and even, for low LN content, potential root elongation stimulation was reported. The absence of toxic effects was explained by a drastic decrease of the total dissolved LN concentration due to the presence of phosphates causing LN precipitation. In SH-P, LN remained largely soluble and inhibition of root elongation was observed mainly for the highest treatments. While in the tests done in DW, toxic effects were obtained for all treatments. Our results showed that in absence of phosphorous, LN appear mainly as free form and complexed in carbonates and sulphates, and can cause toxic effects, whereas toxicity is not expected when phosphorous is available in aquatic media. The highest LN root contents were observed for the tests using distilled water, possibly due to the absence of competition by Ca2+ for uptake. The present work demonstrated that media composition has a great impact in assessing the ecotoxicology of lanthanides.
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Affiliation(s)
- Ana Romero-Freire
- Université de Lorraine, CNRS, LIEC, F-57000 Metz, France; Department of Soil Science, University of Granada, Avd. Fuente Nueva, 18002, Granada, Spain.
| | - V González
- Université de Lorraine, CNRS, LIEC, F-57000 Metz, France; LEITAT Technological Center, C/ de la Innovació, 2, 08225 Terrassa, Barcelona, Spain
| | - J E Groenenberg
- Université de Lorraine, CNRS, LIEC, F-57000 Metz, France; Soil Chemistry group, Wageningen University, Wageningen, the Netherlands
| | - H Qiu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - M Auffan
- CEREGE, CNRS, Aix Marseille Univ, IRD, INRAE, Coll France, Aix-en-Provence, France
| | - S Cotelle
- Université de Lorraine, CNRS, LIEC, F-57000 Metz, France
| | - L Giamberini
- Université de Lorraine, CNRS, LIEC, F-57000 Metz, France
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11
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Siciliano A, Guida M, Pagano G, Trifuoggi M, Tommasi F, Lofrano G, Padilla Suarez EG, Gjata I, Brouziotis AA, Liguori R, Libralato G. Cerium, gadolinium, lanthanum, and neodymium effects in simplified acid mine discharges to Raphidocelis subcapitata, Lepidium sativum, and Vicia faba. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 787:147527. [PMID: 34000556 DOI: 10.1016/j.scitotenv.2021.147527] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 04/20/2021] [Accepted: 04/20/2021] [Indexed: 06/12/2023]
Abstract
The alteration of rare earth elements (REEs) biogeochemical cycles has increased the potential effects related to their environmental exposure in a one-health perspective. Cerium (Ce), gadolinium (Gd), lanthanum (La), and neodymium (Nd) are frequently related to technological applications and their environmental concentrations are already in the μg/kg - mg/kg (i.e., or L) range depending on the considered matrices. The effect of Ce, Gd, La, and Nd was investigated in a simulated AMD (0.01-10.22 mg/L) at pH 4 and 6 considering a battery of photosynthetic organisms (Raphidocelis subcapitata, Lepidium sativum, and Vicia faba) according to a multiple-endpoint approach (growth inhibition, germination index, and mutagenicity). According to modelled chemical speciation, the considered elements were mostly in the trivalent free form (86-88%) at pH 4. Gd, La, and Nd exerted the most relevant toxic effect at pH 4. The pH 6 scenario evidenced a reduction in REEs toxicity level. Mutagenicity was detected only at pH 4 by Gd (up to 3-fold compared to negative controls), La and Nd, while Ce did not show any adverse effect. Toxic effects due to Ce, Gd, La, and Nd can be reduced by controlling the pH, but several gaps of knowledge still remain about their uptake and trophic transfer, and long-term effects on targeted species.
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Affiliation(s)
- Antonietta Siciliano
- Department of Biology, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia 21, 80126 Naples, Italy
| | - Marco Guida
- Department of Biology, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia 21, 80126 Naples, Italy; Centro Servizi Metrologici e Tecnologici Avanzati (CeSMA), Complesso Universitario di Monte Sant'Angelo, Via Cinthia 21, 80126 Naples, Italy
| | - Giovanni Pagano
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia 21, 80126 Naples, Italy
| | - Marco Trifuoggi
- Centro Servizi Metrologici e Tecnologici Avanzati (CeSMA), Complesso Universitario di Monte Sant'Angelo, Via Cinthia 21, 80126 Naples, Italy; Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia 21, 80126 Naples, Italy
| | - Franca Tommasi
- Department of Biology, Università degli Studi di Bari Aldo Moro, Bari, Italy
| | - Giusy Lofrano
- Centro Servizi Metrologici e Tecnologici Avanzati (CeSMA), Complesso Universitario di Monte Sant'Angelo, Via Cinthia 21, 80126 Naples, Italy
| | - Edith Guadalupe Padilla Suarez
- Department of Biology, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia 21, 80126 Naples, Italy
| | - Isidora Gjata
- Department of Biology, Università degli Studi di Bari Aldo Moro, Bari, Italy
| | - Antonios Apostolos Brouziotis
- Department of Biology, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia 21, 80126 Naples, Italy; Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia 21, 80126 Naples, Italy
| | - Renato Liguori
- Department of Science and Technology, University of Naples Parthenope, Naples, Italy
| | - Giovanni Libralato
- Department of Biology, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia 21, 80126 Naples, Italy.
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12
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Trapasso G, Chiesa S, Freitas R, Pereira E. What do we know about the ecotoxicological implications of the rare earth element gadolinium in aquatic ecosystems? THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 781:146273. [PMID: 33813143 DOI: 10.1016/j.scitotenv.2021.146273] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 02/04/2021] [Accepted: 02/28/2021] [Indexed: 06/12/2023]
Abstract
Gadolinium (Gd) is one of the most commercially exploited rare earth elements, commonly employed in magnetic resonance imaging as a contrast agent. The present review was performed aiming to identify the Gd concentrations in marine and freshwater environments. In addition, information on Gd speciation in the environment is discussed, in order to understand how each chemical form affects its fate in the environment. Biological responses caused by Gd exposure and its bioaccumulation in different aquatic invertebrates are also discussed. This review was devoted to aquatic invertebrates, since this group of organisms includes species widely used as bioindicators of pollution and they represent important resources for human socio-economic development, as edible seafood, fishing baits and providing food resources for other species. From the literature, most of the published data are focused on freshwater environments, revealing concentrations from 0.347 to 80 μg/L, with the highest Gd anomalies found close to highly industrialized areas. In marine environments, the published studies identified a range of concentrations between 0.36 and 26.9 ng/L (2.3 and 171.4 pmol/kg), reaching 409.4 ng/L (2605 pmol/kg) at a submarine outfall. Concerning the bioaccumulation and effects of Gd in aquatic species, most of the literature regards to freshwater species, revealing concentration ranging from 0.006 to 0.223 μg/g, with high variability in the bioaccumulation extent according to Gd complexes chemical speciation. Conversely, no field data concerning Gd bioaccumulation in tissues of marine species have been published. Finally, impacts of Gd in invertebrate aquatic species were identified at different biological levels, including alterations on gene expression, cellular homeostasis, shell formation, metabolic capacity and antioxidant mechanisms. The information here presented highlights that Gd may represent an environmental threat and a risk to human health, demonstrating the need for further research on Gd toxicity towards aquatic wildlife and the necessity for new water remediation strategies.
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Affiliation(s)
- Giacomo Trapasso
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Italy
| | - Stefania Chiesa
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Italy; ISPRA, The Italian Institute for Environmental Protection and Research, Rome, Italy
| | - Rosa Freitas
- Departamento de Biologia & CESAM, Universidade de Aveiro, Portugal.
| | - Eduarda Pereira
- Departamento de Química & REQUIMTE, Universidade de Aveiro, Portugal
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13
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Ekner-Grzyb A, Chmielowska-Bąk J, Szczeszak A. Influence of GdVO 4:Eu 3+ Nanocrystals on Growth, Germination, Root Cell Viability and Oxidative Stress of Wheat ( Triticum aestivum L.) Seedlings. PLANTS 2021; 10:plants10061187. [PMID: 34200921 PMCID: PMC8230434 DOI: 10.3390/plants10061187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/05/2021] [Accepted: 06/07/2021] [Indexed: 12/21/2022]
Abstract
The increasing application of lanthanide-doped nanocrystals (LDNCs) entails the risk of a harmful impact on the natural environment. Therefore, in the presented study the influence of gadolinium orthovanadates doped with Eu3+ (GdVO4:Eu3) nanocrystals on wheat (Triticum aestivum L.), chosen as a model plant species, was investigated. The seeds were grown in Petri dishes filled with colloids of LDNCs at the concentrations of 0, 10, 50 and 100 µg/mL. The plants’ growth endpoints (number of roots, roots length, roots mass, hypocotyl length and hypocotyl mass) and germination rate were not significantly changed after the exposure to GdVO4:Eu3+ nanocrystals at all used concentrations. The presence of LDNCs also had no effect on oxidative stress intensity, which was determined on the basis of the amount of lipid peroxidation product (thiobarbituric acid reactive substances; TBARS) in the roots. Similarly, TTC (tetrazolium chloride) assay did not show any differences in cells’ viability. However, root cells of the treated seedlings contained less Evans Blue (EB) when compared to the control. The obtained results, on the one hand, suggest that GdVO4:Eu3+ nanocrystals are safe for plants in the tested concentrations, while on the other hand they indicate that LDNCs may interfere with the functioning of the root cell membrane.
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Affiliation(s)
- Anna Ekner-Grzyb
- Department of Plant Ecophysiology, Faculty of Biology, Institute of Experimental Biology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland;
- Correspondence: ; Tel.: +48-61-829-5811
| | - Jagna Chmielowska-Bąk
- Department of Plant Ecophysiology, Faculty of Biology, Institute of Experimental Biology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland;
| | - Agata Szczeszak
- Department of Rare Earths, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland;
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14
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Lynch I, Afantitis A, Exner T, Himly M, Lobaskin V, Doganis P, Maier D, Sanabria N, Papadiamantis AG, Rybinska-Fryca A, Gromelski M, Puzyn T, Willighagen E, Johnston BD, Gulumian M, Matzke M, Green Etxabe A, Bossa N, Serra A, Liampa I, Harper S, Tämm K, Jensen ACØ, Kohonen P, Slater L, Tsoumanis A, Greco D, Winkler DA, Sarimveis H, Melagraki G. Can an InChI for Nano Address the Need for a Simplified Representation of Complex Nanomaterials across Experimental and Nanoinformatics Studies? NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2493. [PMID: 33322568 PMCID: PMC7764592 DOI: 10.3390/nano10122493] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 12/05/2020] [Accepted: 12/08/2020] [Indexed: 12/16/2022]
Abstract
Chemoinformatics has developed efficient ways of representing chemical structures for small molecules as simple text strings, simplified molecular-input line-entry system (SMILES) and the IUPAC International Chemical Identifier (InChI), which are machine-readable. In particular, InChIs have been extended to encode formalized representations of mixtures and reactions, and work is ongoing to represent polymers and other macromolecules in this way. The next frontier is encoding the multi-component structures of nanomaterials (NMs) in a machine-readable format to enable linking of datasets for nanoinformatics and regulatory applications. A workshop organized by the H2020 research infrastructure NanoCommons and the nanoinformatics project NanoSolveIT analyzed issues involved in developing an InChI for NMs (NInChI). The layers needed to capture NM structures include but are not limited to: core composition (possibly multi-layered); surface topography; surface coatings or functionalization; doping with other chemicals; and representation of impurities. NM distributions (size, shape, composition, surface properties, etc.), types of chemical linkages connecting surface functionalization and coating molecules to the core, and various crystallographic forms exhibited by NMs also need to be considered. Six case studies were conducted to elucidate requirements for unambiguous description of NMs. The suggested NInChI layers are intended to stimulate further analysis that will lead to the first version of a "nano" extension to the InChI standard.
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Affiliation(s)
- Iseult Lynch
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK;
| | - Antreas Afantitis
- Nanoinformatics Department, NovaMechanics Ltd., 1666 Nicosia, Cyprus; (A.A.); (A.T.)
| | - Thomas Exner
- Edelweiss Connect GmbH, Hochbergerstrasse 60C, 4057 Basel, Switzerland;
| | - Martin Himly
- Department Biosciences, Paris Lodron University of Salzburg, Hellbrunnerstrasse 34, 5020 Salzburg, Austria;
| | - Vladimir Lobaskin
- School of Physics, University College Dublin, Belfield, Dublin 4, Ireland;
| | - Philip Doganis
- School of Chemical Engineering, National Technical University of Athens, 157 80 Athens, Greece; (P.D.); (I.L.); (H.S.)
| | - Dieter Maier
- Biomax Informatics AG, Robert-Koch-Str. 2, 82152 Planegg, Germany;
| | - Natasha Sanabria
- National Health Laboratory Services, 1 Modderfontein Rd, Sandringham, Johannesburg 2192, South Africa; (N.S.); (M.G.)
| | - Anastasios G. Papadiamantis
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK;
- Nanoinformatics Department, NovaMechanics Ltd., 1666 Nicosia, Cyprus; (A.A.); (A.T.)
| | - Anna Rybinska-Fryca
- QSAR Lab Ltd., Aleja Grunwaldzka 190/102, 80-266 Gdansk, Poland; (A.R.-F.); (M.G.); (T.P.)
| | - Maciej Gromelski
- QSAR Lab Ltd., Aleja Grunwaldzka 190/102, 80-266 Gdansk, Poland; (A.R.-F.); (M.G.); (T.P.)
| | - Tomasz Puzyn
- QSAR Lab Ltd., Aleja Grunwaldzka 190/102, 80-266 Gdansk, Poland; (A.R.-F.); (M.G.); (T.P.)
| | - Egon Willighagen
- Department of Bioinformatics—BiGCaT, School of Nutrition and Translational Research in Metabolism, Maastricht University, Universiteitssingel 50, 6229 ER Maastricht, The Netherlands;
| | - Blair D. Johnston
- Department Chemicals and Product Safety, Federal Institute for Risk Assessment, Max-Dohrn-Str. 8-10, 10589 Berlin, Germany;
| | - Mary Gulumian
- National Health Laboratory Services, 1 Modderfontein Rd, Sandringham, Johannesburg 2192, South Africa; (N.S.); (M.G.)
- Haematology and Molecular Medicine, University of the Witwatersrand, 1 Jan Smuts Ave, Johannesburg 2000, South Africa
| | - Marianne Matzke
- UK Centre for Ecology and Hydrology, Maclean Building, Benson Lane, Crowmarsh Gifford OX10 8BB, UK; (M.M.); (A.G.E.)
| | - Amaia Green Etxabe
- UK Centre for Ecology and Hydrology, Maclean Building, Benson Lane, Crowmarsh Gifford OX10 8BB, UK; (M.M.); (A.G.E.)
| | - Nathan Bossa
- LEITAT Technological Center, Circular Economy Business Unit, C/de La Innovació 2, 08225 Terrassa, Barcelona, Spain;
| | - Angela Serra
- Faculty of Medicine and Health Technology, Tampere University, FI-33014 Tampere, Finland; (A.S.); (D.G.)
| | - Irene Liampa
- School of Chemical Engineering, National Technical University of Athens, 157 80 Athens, Greece; (P.D.); (I.L.); (H.S.)
| | - Stacey Harper
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, 116 Johnson Hall 105 SW 26th St., Corvallis, OR 97331, USA;
| | - Kaido Tämm
- Institute of Chemistry, University of Tartu, Ülikooli 18, 50090 Tartu, Estonia;
| | - Alexander CØ Jensen
- The National Research Center for the Work Environment, Lersø Parkallé 105, 2100 Copenhagen, Denmark;
| | - Pekka Kohonen
- Misvik Biology OY, Karjakatu 35 B, 20520 Turku, Finland;
| | - Luke Slater
- Institute of Cancer and Genomics, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK;
| | - Andreas Tsoumanis
- Nanoinformatics Department, NovaMechanics Ltd., 1666 Nicosia, Cyprus; (A.A.); (A.T.)
| | - Dario Greco
- Faculty of Medicine and Health Technology, Tampere University, FI-33014 Tampere, Finland; (A.S.); (D.G.)
| | - David A. Winkler
- Institute of Molecular Sciences, La Trobe University, Kingsbury Drive, Bundoora 3086, Australia;
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville 3052, Australia
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK
- CSIRO Data61, Pullenvale 4069, Australia
| | - Haralambos Sarimveis
- School of Chemical Engineering, National Technical University of Athens, 157 80 Athens, Greece; (P.D.); (I.L.); (H.S.)
| | - Georgia Melagraki
- Nanoinformatics Department, NovaMechanics Ltd., 1666 Nicosia, Cyprus; (A.A.); (A.T.)
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15
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Malhotra N, Hsu HS, Liang ST, Roldan MJM, Lee JS, Ger TR, Hsiao CD. An Updated Review of Toxicity Effect of the Rare Earth Elements (REEs) on Aquatic Organisms. Animals (Basel) 2020; 10:E1663. [PMID: 32947815 PMCID: PMC7552131 DOI: 10.3390/ani10091663] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/14/2020] [Accepted: 09/14/2020] [Indexed: 01/11/2023] Open
Abstract
Rare earth elements (REEs) or "technology metals" were coined by the U.S. Department of Energy, a group of seventeen elements found in the Earth's crust. These chemical elements are vital and irreplaceable to the world of technology owing to their unique physical, chemical, and light-emitting properties, all of which are beneficial in modern healthcare, telecommunication, and defense. Rare earth elements are relatively abundant in Earth's crust, with critical qualities to the device performance. The reuse and recycling of rare earth elements through different technologies can minimize impacts on the environment; however, there is insufficient data about their biological, bioaccumulation, and health effects. The increasing usage of rare earth elements has raised concern about environmental toxicity, which may further cause harmful effects on human health. The study aims to review the toxicity analysis of these rare earth elements concerning aquatic biota, considering it to be the sensitive indicator of the environment. Based on the limited reports of REE effects, the review highlights the need for more detailed studies on the hormetic effects of REEs. Aquatic biota is a cheap, robust, and efficient platform to study REEs' toxicity, mobility of REEs, and biomagnification in water bodies. REEs' diverse effects on aquatic life forms have been observed due to the lack of safety limits and extensive use in the various sectors. In accordance with the available data, we have put in efforts to compile all the relevant research results in this paper related to the topic "toxicity effect of REEs on aquatic life".
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Affiliation(s)
- Nemi Malhotra
- Department of Biomedical Engineering, Chung Yuan Christian University, Chung-Li 320314, Taiwan;
| | - Hua-Shu Hsu
- Department of Applied Physics, National Pingtung University, Pingtung 900391, Taiwan;
| | - Sung-Tzu Liang
- Department of Bioscience Technology, Chung Yuan Christian University, Chung-Li 320314, Taiwan;
| | - Marri Jmelou M. Roldan
- Faculty of Pharmacy and The Graduate School, University of Santo Tomas, Manila 1008, Philippines;
| | - Jiann-Shing Lee
- Department of Applied Physics, National Pingtung University, Pingtung 900391, Taiwan;
| | - Tzong-Rong Ger
- Department of Biomedical Engineering, Chung Yuan Christian University, Chung-Li 320314, Taiwan;
- Center for Nanotechnology, Chung Yuan Christian University, Chung-Li 320314, Taiwan
| | - Chung-Der Hsiao
- Department of Bioscience Technology, Chung Yuan Christian University, Chung-Li 320314, Taiwan;
- Center for Nanotechnology, Chung Yuan Christian University, Chung-Li 320314, Taiwan
- Department of Chemistry, Chung Yuan Christian University, Chung-Li 320314, Taiwan
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16
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Bergsten-Torralba LR, Magalhães DP, Giese EC, Nascimento CRS, Pinho JVA, Buss DF. Toxicity of three rare earth elements, and their combinations to algae, microcrustaceans, and fungi. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 201:110795. [PMID: 32544742 DOI: 10.1016/j.ecoenv.2020.110795] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 05/20/2020] [Accepted: 05/21/2020] [Indexed: 06/11/2023]
Abstract
Rare earth elements (REEs) are naturally distributed in the environment, and are increasingly being used in agriculture and high technology materials worldwide, thereby increasing anthropogenic contamination and environmental risks. There exists scarce and contradictory toxicity information about REEs; hence, more studies are required, especially on their mixtures. Thus, this study aimed to assess the toxicities of La3+, Nd3+, Sm3+, and the combinations of these elements (binary 1:1 and ternary 1:1:1), to organisms from different trophic levels: producers (the microalgae Chlorella vulgaris and Raphidocelis subcapitata), primary consumers (the microcrustaceans Daphnia similis and Artemia salina), and decomposers (the fungi Penicillium simplicissimum and Aspergillus japonicus). Ecotoxicological bioassays were performed, and toxic concentrations were determined. Thereafter, toxicities of single and mixture REEs were classified as slightly to highly toxic according to their toxic units. Finally, a concentration addition (CA) model was used to estimate how REEs interact upon combining. Nd3+ was the most toxic element for all organisms, especially D. similis (48 h LC50 9.41 mg.L-1), and was therefore classified as highly toxic. Sm3+ promoted cell agglomeration in Chlorella vulgaris and was the most toxic of the tested elements for this organism (72 h IC50 25.78 mg.L-1). The CA model revealed synergistic responses for most of the combinations, principally Nd3+ + Sm3+, which was the most toxic combination for the tested organisms. Both fungi were the most resistant organisms, and A. japonicus produced exudate and sclerotia, which help in the detoxification of chemicals. Owing not only to the fact that fungi displayed a higher resistance to REEs, but also due to the absence of regulations for REEs released from the agricultural or industrial sector, and the lack of methods to treat effluents or to dispose of technological items containing REEs, these organisms should be considered as a model for the biosorption or bioremediation of REEs. Finally, the toxic effects of REEs, particularly Nd3+, on the biota and human health should be the focus of future studies due to their increased use in technology.
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Affiliation(s)
- L R Bergsten-Torralba
- Oswaldo Cruz Institute - IOC, Program in Biodiversity and Health, Fiocruz, Rio de Janeiro - Brazil; Oswaldo Cruz Institute - IOC, Laboratory of Evaluation and Promotion of Environmental Health (LAPSA), Fiocruz, Rio de Janeiro, Brazil.
| | - D P Magalhães
- Center for Mineral Technology - CETEM, Rio de Janeiro, Brazil
| | - E C Giese
- Center for Mineral Technology - CETEM, Rio de Janeiro, Brazil
| | - C R S Nascimento
- National Institute for Quality Control in Health - INCQS, Fiocruz, Rio de Janeiro, Brazil
| | - J V A Pinho
- National School of Public Health Sergio Arouca - ENSP, Program of Public Health and Environment, Fiocruz, Rio de Janeiro, Brazil
| | - D F Buss
- Pan American Health Organization: PAHO, Washington, D.C., USA
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17
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Nguyen MK, Moon JY, Lee YC. Microalgal ecotoxicity of nanoparticles: An updated review. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 201:110781. [PMID: 32497816 DOI: 10.1016/j.ecoenv.2020.110781] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 05/05/2020] [Accepted: 05/18/2020] [Indexed: 06/11/2023]
Abstract
Nowadays, nanotechnology and its related industries are becoming a rapidly explosive industry that offers many benefits to human life. However, along with the increased production and use of nanoparticles (NPs), their presence in the environment creates a high risk of increasing toxic effects on aquatic organisms. Therefore, a large number of studies focusing on the toxicity of these NPs to the aquatic organisms are carried out which used algal species as a common biological model. In this review, the influences of the physio-chemical properties of NPs and the response mechanisms of the algae on the toxicity of the NPs were discussed focusing on the "assay" studies. Besides, the specific algal toxicities of each type of NPs along with the NP-induced changes in algal cells of these NPs are also assessed. Almost all commonly-used NPs exhibit algal toxicity. Although the algae have similarities in the symptoms under NP exposure, the sensitivity and variability of each algae species to the inherent properties of each NPs are quite different. They depend strongly on the concentration, size, characteristics of NPs, and biochemical nature of algae. Through the assessment, the review identifies several gaps that need to be further studied to make an explicit understanding. The findings in the majority of studies are mostly in laboratory conditions and there are still uncertainties and contradictory/inconsistent results about the behavioral effects of NPs under field conditions. Besides, there remains unsureness about NP-uptake pathways of microalgae. Finally, the toxicity mechanisms of NPs need to be thoughtfully understood which is essential in risk assessment.
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Affiliation(s)
- Minh Kim Nguyen
- Department of BioNano Technology, Gachon University, 1342 Seongnamdaero, Sujeong-gu, Seongnam-si, Gyeonggi-do, 13120, Republic of Korea.
| | - Ju-Young Moon
- Department of Beauty Design Management, Hansung University, 116 Samseongyoro-16 gil, Seoul, 02876, Republic of Korea.
| | - Young-Chul Lee
- Department of BioNano Technology, Gachon University, 1342 Seongnamdaero, Sujeong-gu, Seongnam-si, Gyeonggi-do, 13120, Republic of Korea.
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18
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Ecotoxicity Responses of the Macrophyte Algae Nitellopsis obtusa and Freshwater Crustacean Thamnocephalus platyurus to 12 Rare Earth Elements. SUSTAINABILITY 2020. [DOI: 10.3390/su12177130] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Due to unique chemical properties, rare earth elements (REEs) are increasingly used in versatile technological applications. They are considered emerging environmental contaminants, since they become mobile instead of being bound in rocks. At present, the information on REE effects to aquatic biota is scarce and contradictory. This study aims to explore the ecotoxicity of 11 lanthanides (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Er, and Lu) and yttrium (Y) to charophyte algae Nitellopsis obtusa and microcrustaceans Thamnocephalus platyurus. Median lethal concentrations (LC50) were assessed in characean cells at 8, 12, 16, 20, and 24 days of exposure, and 24-h LC50s were determined in shrimps. According to the EU−Directive 93/67/EEC hazard classification scheme and 24-day LC50 values generated for N. obtusa, REE effects were assigned from “harmful” to “very toxic” (Gd), while 24-h LC50s for T. platyurus were classified as “harmful” or “toxic” (based on nominal concentrations) and as “toxic” or “very toxic” (based on REE free ion concentrations calculated with CHEAQS Next software). The data obtained for algae showed correlations with the REE atomic numbers (r = −0.68, p < 0.05) and ionic radii (r = 0.65, p < 0.05) at the most extended 24-day exposure only. The analysis of the trends of concentration−response (c–r) curves obtained at increasing exposure durations (8–24 days), alongside the 24-day LC50s ranging within almost two orders of magnitude, allowed a more-toxic heavy REE group to be distinguished, and somewhat different modes REE actions to be envisioned for N. obtusa.
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19
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Kang J, Kang AM. Trend of the research on rare earth elements in environmental science. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:14318-14321. [PMID: 32088825 DOI: 10.1007/s11356-020-08138-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 02/17/2020] [Indexed: 06/10/2023]
Abstract
Rare earth elements (REEs) consist of 17 transition metals which are the 15 lanthanides and yttrium and scandium. These elements have great utility in the production of modern technology, especially electronics. However, these materials may pose a serious threat to the environment if handled or disposed of incorrectly; the effects of which are being studied by the field of environmental toxicology. A multitude of studies have indicated that rare earth elements have harmful impacts on biological life, making a reform to the disposal of rare earth elements increasingly pressing. Scientific interest in REEs is constantly rising due to the increased use of REEs due to their utility. In this paper, we display our meta-analysis of a scientific literature database, PubMed, to quantitatively map the temporal flux of research and interest pertaining to REEs, especially in the field of environmental science. Our findings may prove useful for planning research on REEs or predicting the future of REE usage.
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Affiliation(s)
- Jonghoon Kang
- Department of Biology, Valdosta State University, Valdosta, GA, 31698, USA.
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20
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Aharchaou I, Beaubien C, Campbell PGC, Fortin C. Lanthanum and Cerium Toxicity to the Freshwater Green Alga Chlorella fusca: Applicability of the Biotic Ligand Model. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2020; 39:996-1005. [PMID: 32135577 DOI: 10.1002/etc.4707] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/11/2019] [Accepted: 03/04/2020] [Indexed: 05/25/2023]
Abstract
The environmental risk assessment of rare earth elements (REEs) requires data on their potential toxicity. In the present study, the toxicity of lanthanum (La) and cerium (Ce) was studied in relation to metal speciation in solution. For both La and Ce, the use of organic ligands demonstrated that the calculated free ion concentration was a good indicator of toxicity. Whether in the absence or presence of organic ligands, when based on free ion concentrations, the obtained half-maximal effective concentrations were similar. When all generated data were pooled, Ce and La showed identical toxicity thresholds after 120 h of exposure with free ion concentration-based median effective concentration values (95% confidence intervals) of 0.48 (0.38-0.60) µM and 0.47 (0.36-0.61) µM for La3+ and Ce3+ , respectively. The inhibition of algal growth was also correlated with the intracellular lanthanide concentrations, regardless of the ligand used. Finally, increasing the ambient calcium concentration protected the test algae by reducing the amount of lanthanide internalized into the cells. These results suggest that, at constant pH (5.5), REE accumulation and toxicity are linked to the free ion concentration and ambient calcium concentration, as predicted by the biotic ligand model. Environ Toxicol Chem 2020;39:996-1005. © 2020 SETAC.
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Affiliation(s)
- Imad Aharchaou
- EcotoQ, Institut national de la Recherche scientifique, Centre Eau Terre Environnement (INRS-ETE), Québec, Québec, Canada
| | - Cédrick Beaubien
- EcotoQ, Institut national de la Recherche scientifique, Centre Eau Terre Environnement (INRS-ETE), Québec, Québec, Canada
| | - Peter G C Campbell
- EcotoQ, Institut national de la Recherche scientifique, Centre Eau Terre Environnement (INRS-ETE), Québec, Québec, Canada
| | - Claude Fortin
- EcotoQ, Institut national de la Recherche scientifique, Centre Eau Terre Environnement (INRS-ETE), Québec, Québec, Canada
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21
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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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22
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Pikula KS, Chernyshev VV, Zakharenko AM, Chaika VV, Waissi G, Hai LH, Hien TT, Tsatsakis AM, Golokhvast KS. Toxicity assessment of particulate matter emitted from different types of vehicles on marine microalgae. ENVIRONMENTAL RESEARCH 2019; 179:108785. [PMID: 31606615 DOI: 10.1016/j.envres.2019.108785] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 09/28/2019] [Accepted: 09/28/2019] [Indexed: 06/10/2023]
Abstract
Air pollution caused by vehicle emissions remains a serious environmental threat in urban areas. Sedimentation of atmospheric aerosols, surface wash, drainage water, and urbane wastewater can bring vehicle particle emissions into the aquatic environment. However, the level of toxicity and mode of toxic action for this kind of particles are not fully understood. Here we explored the aquatic toxic effects of particulate matter emitted from different types of vehicles on marine microalgae Porphyridium purpureum and Heterosigma akashiwo. We used flow cytometry to evaluate growth rate inhibition, changes in the level of esterase activity, changes in membrane potential and size changes of microalgae cells under the influence of particulate matter emitted by motorcycles, cars and specialized vehicles with different types of engines and powered by different types of fuel. Both microalgae species were highly influenced by the particles emitted by diesel-powered vehicles. These particle samples had the highest impact on survival, esterase activity, and membrane potential of microalgae and caused the most significant increase in microalgae cell size compared to the particles produced by gasoline-powered vehicles. The results of the algae-bioassay strongly correlate with the data of laser granulometry analyses, which indicate that the most toxic samples had a significantly higher percentage of particles in the size range less than 1 μm. Visual observation with an optical microscope showed intensive agglomeration of the particles emitted by diesel-powered vehicles with microalgae cells. Moreover, within the scope of this research, we did not observe the direct influence of metal content in the particles to the level of their aquatic toxicity, and we can conclude that physical damage is the most probable mechanism of toxicity for vehicle emitted particles.
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Affiliation(s)
| | | | | | - Vladimir V Chaika
- Far Eastern Federal University, Vladivostok, 690950, Russian Federation
| | - Greta Waissi
- University of Eastern Finland, School of Pharmacy, Kuopio, POB 1627 70211, Finland
| | - Le Hong Hai
- Far Eastern Federal University, Vladivostok, 690950, Russian Federation
| | - To Trong Hien
- Far Eastern Federal University, Vladivostok, 690950, Russian Federation
| | - Aristidis M Tsatsakis
- Far Eastern Federal University, Vladivostok, 690950, Russian Federation; University of Crete, School of Medicine, Laboratory of Toxicology, Heraklion, 71003, Greece; I.M. Sechenov First Moscow State Medical University, Moscow, 119048, Russian Federation
| | - Kirill S Golokhvast
- Far Eastern Federal University, Vladivostok, 690950, Russian Federation; Pacific Geographical Institute FEB RAS, Vladivostok, 690014, Russian Federation
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23
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Sun D, He N, Chen Q, Duan S. Effects of Lanthanum on the Photosystem II Energy Fluxes and Antioxidant System of Chlorella Vulgaris and Phaeodactylum Tricornutum. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E2242. [PMID: 31242666 PMCID: PMC6617545 DOI: 10.3390/ijerph16122242] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 06/18/2019] [Accepted: 06/19/2019] [Indexed: 11/16/2022]
Abstract
The rare earth elements are widely used in agricultural and light industry development. They promote the growth of crop seedlings, enhance root development and change the metal properties. Due to the large amount of rare earth minerals mined in China, rare earth elements have been detected in both coastal and estuary areas. They cause pollution and threaten the health of aquatic organisms and human beings. This study investigates the effects of lanthanum on two marine bait algae, and analyzes the changes in the photosynthetic and antioxidant systems of the two algae. The results show that rare earth elements have significant inhibitory effects upon the two algae. The OJIP kinetic curve value decreases with an increasing concentration of La(NO3)3 ·6H2O. The parameters of the fluorescence value were analyzed. The ABS/RC increases and the DI0/RC decreases during the first 24 h after exposure. The effects on the photosynthetic and antioxidant systems at low concentrations (both EC10 and EC20) show that the TR0/ABS increases, and the ET0/RC, ABS/RC, and DI0/RC has a decreasing trend after 30 min. However, after 24 h, normal levels were restored. In addition, the study finds that the TR0/ABS increases after 24 h, leading to an increase in reactive oxygen species. The antioxidant system analysis also confirms the increase in the activities of antioxidant enzymes, such as SOD and GSH. The experiment is expected to support the marine pollution of rare earths and the theoretical data of the impact on marine primary producers.
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Affiliation(s)
- Dong Sun
- Research Center of Hydrobiology, Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, Jinan University, Guangzhou 510632, China.
| | - Ning He
- Colleges of Life Science and Resource and Environment, Yichun University, Yichun 336000, China.
| | - Qi Chen
- Research Center of Hydrobiology, Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, Jinan University, Guangzhou 510632, China.
| | - Shunshan Duan
- Research Center of Hydrobiology, Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, Jinan University, Guangzhou 510632, China.
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24
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Romero-Freire A, Joonas E, Muna M, Cossu-Leguille C, Vignati DAL, Giamberini L. Assessment of the toxic effects of mixtures of three lanthanides (Ce, Gd, Lu) to aquatic biota. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 661:276-284. [PMID: 30677675 DOI: 10.1016/j.scitotenv.2019.01.155] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 01/07/2019] [Accepted: 01/13/2019] [Indexed: 06/09/2023]
Abstract
Lanthanide (LNs) release into the environment is expected to greatly increase in the coming years due to a high demand for new technologies. However there is a gap in the ecological risk assessment of these metals because most of the ecotoxicological studies have been performed with only one element, although they are usually found in nature as a group. This research evaluated the effects of mixtures of three lanthanides, cerium (Ce), gadolinium (Gd), and lutetium (Lu), representative of the light, middle and heavy rare earth elements, respectively, on seven aquatic species (A. fischeri, R. subcapitata, C. vulgaris, B. calyciflorus, H. incongruens, D. magna and D. rerio). Lanthanide content decreased over time in all toxicity test media and it was observed that LN sedimentation starts at the beginning of the tests with a steep decline of the available LN amount. Potential toxic effects of LNs were observed only in five species of the seven studied, predominantly in the unicellular organism (A. fischeri) and in the organisms belonging to the lower trophic levels (R. subcapitata and B. calyciflorus). The multi-toxicity approach performed in this study showed synergistic effects in tests performed with the bacteria A. fischeri and the algae R. subcapitata, and antagonistic effects for the rotifer B. calyciflorus. Although predicting the response of aquatic organisms exposed to multi-elements is not an easy task and can be masked by potential interactions with other compounds or even by nutrient removal. The variation in toxic action among species observed in this study reveals that lanthanide interaction in toxicity mechanisms should not be discarded, and supports that further studies with LN mixtures are required to properly understand their toxic behaviour in nature ecosystems.
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Affiliation(s)
- A Romero-Freire
- CNRS UMR 7360, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Université de Lorraine, Metz 57070, France; Marine Research Institute (IIM-CSIC), Eduardo Cabello 6, Vigo 36208, Spain.
| | - E Joonas
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, Tallinn 12618, Estonia; Institute of Ecology and Earth Sciences, University of Tartu, Lai 40, 51005 Tartu, Estonia
| | - M Muna
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, Tallinn 12618, Estonia; Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia
| | - C Cossu-Leguille
- CNRS UMR 7360, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Université de Lorraine, Metz 57070, France
| | - D A L Vignati
- CNRS UMR 7360, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Université de Lorraine, Metz 57070, France
| | - L Giamberini
- CNRS UMR 7360, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Université de Lorraine, Metz 57070, France
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25
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Yang Q, Wang L, He J, Wei H, Yang Z, Huang X. Arabinogalactan Proteins Are the Possible Extracellular Molecules for Binding Exogenous Cerium(III) in the Acidic Environment Outside Plant Cells. FRONTIERS IN PLANT SCIENCE 2019; 10:153. [PMID: 30842782 PMCID: PMC6391350 DOI: 10.3389/fpls.2019.00153] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 01/29/2019] [Indexed: 05/29/2023]
Abstract
Rare earth elements [REE(III)] increasingly accumulate in the atmosphere and can be absorbed by plant leaves. Our previous study showed that after treatment of REE(III) on plant, REE(III) is first bound by some extracellular molecules of plant cells, and then the endocytosis of leaf cells will be initiated, which terminates the endocytic inertia of leaf cells. Identifying the extracellular molecules for binding REE(III) is the crucial first step to elucidate the mechanism of REE(III) initiating the endocytosis in leaf cells. Unfortunately, the molecules are unknown. Here, cerium(III) [Ce(III)] and Arabidopsis served as a representative of REE(III) and plants, respectively. By using interdisciplinary methods such as confocal laser scanning microscopy, immune-Au and fluorescent labeling, transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS), ultraviolet-visible spectroscopy, circular dichroism spectroscopy, fluorescent spectrometry and molecular dynamics simulation, we obtained two important discoveries: first, the arabinogalactan proteins (AGP) inside leaf cells were sensitively increased in protein expression and recruited onto the plasma membrane; second, to verify whether AGP can bind to Ce(III) in the acidic environment outside leaf cells, by choosing fasciclin-like AGP11 (AtFLA11) as a representative of AGP, we found that Ce(III) can form stable [Ce(H2O)7](III)-AtFLA11 complexes with an apparent binding constant of 1.44 × 10-6 in simulated acidic environment outside leaf cells, in which the secondary and tertiary structure of AtFLA11 was changed. The structural change in AtFLA11 and the interaction between AtFLA11 and Ce(III) were enhanced with increasing the concentration of Ce(III). Therefore, AtFLA11 can serve as Lewis bases to coordinately bind to Ce(III), which broke traditional chemical principle. The results confirmed that AGP can be the possible extracellular molecules for binding to exogenous Ce(III) outside leaf cells, and provided references for elucidating the mechanism of REE(III) initiating the endocytosis in leaf cells.
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Affiliation(s)
- Qing Yang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, China
| | - Lihong Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Jingfang He
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, China
| | - Haiyan Wei
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, China
| | - Zhenbiao Yang
- Center for Plant Cell Biology, Institute for Integrative Genome Biology, University of California, Riverside, Riverside, CA, United States
| | - Xiaohua Huang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, China
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26
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Zhou T, Zhang L, Wang Y, Mu Q, Yin J. Effects of LaCoO3 perovskite nanoparticle on Daphnia magna: accumulation, distribution and biomarker responses. RSC Adv 2019; 9:24617-24626. [PMID: 35527907 PMCID: PMC9069842 DOI: 10.1039/c9ra03513c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 07/29/2019] [Indexed: 11/21/2022] Open
Abstract
Perovskite nanomaterials (PNMs) have been shown to be promising materials for the effective replacement of conventional energy source materials. With the increasing use of PNMs, they will inevitably enter aquatic environments, giving rise to concerns regarding the environmental impact of PNMs. To fill up the gap in information about the environmental effect of PNMs, Daphnia magna was exposed to a typical PNM LaCoO3 for 48 h, to assess temporal patterns in PNM bioaccumulation and distribution. Synchrotron radiation based micro X-ray fluorescence spectroscopy (μ-XRF) was used to investigate the time dependent spatial distribution of LaCoO3. Reactive oxygen species (ROS), superoxide dismutase (SOD) and Na+/K+-adenosine triphosphatase (ATPase) were measured as key biomarkers. The results showed that oxidative stress was observed at both LaCoO3 concentrations and Na+/K+-ATPase was inhibited by high levels of LaCoO3. The mode of action of LaCoO3 was mainly dependent on the metal forms. At low LaCoO3 levels, food ingestion was the main entry pathway into organisms and LaCoO3 nanoparticle aggregates accumulated in the gut area. At high LaCoO3 levels, both waterborne and dietary uptake was observed and the gut and thoracic limbs were the main target sites for LaCoO3 nanoparticle aggregates and dissolved ions, respectively. LaCoO3 was not found to translocate in daphnids during the 48 h exposure period at either concentration, suggesting that internalization did not occur. These findings help further our understanding of the fate of PNMs in aquatic organisms, as well as the associated biological responses to PNM exposure. The instability of PNMs in water is of environmental concern. This study shows that in daphnids over 48 h, the mode of action of a representative PNM LaCoO3 is dependent on Co species, which results in the differences in uptake, accumulation, distribution and toxicity.![]()
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Affiliation(s)
- Tingting Zhou
- School of Space and Environment
- Beihang University
- Beijing 100191
- PR China
| | - Lili Zhang
- Shanghai Institute of Applied Physics
- Chinese Academy of Sciences
- Shanghai
- P. R. China
| | - Ying Wang
- School of Space and Environment
- Beihang University
- Beijing 100191
- PR China
| | - Qian Mu
- School of Space and Environment
- Beihang University
- Beijing 100191
- PR China
| | - Jingyu Yin
- School of Space and Environment
- Beihang University
- Beijing 100191
- PR China
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27
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Blinova I, Lukjanova A, Muna M, Vija H, Kahru A. Evaluation of the potential hazard of lanthanides to freshwater microcrustaceans. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 642:1100-1107. [PMID: 30045491 DOI: 10.1016/j.scitotenv.2018.06.155] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 06/08/2018] [Accepted: 06/13/2018] [Indexed: 05/28/2023]
Abstract
The use of lanthanides in different sectors of industry has significantly increased during the last decades. Although the "anthropogenic" anomalies of lanthanides in the soils, surface and ground waters have already been registered, the ecotoxicological effects of these elements and their fate in the environment are still insufficiently investigated. In this study acute and long-term toxicity of selected lanthanides (La, Ce, Pr, Nd and Gd) nitrates to freshwater crustaceans Daphnia magna, Thamnocephalus platyurus and Heterocypris incongruens were studied and critically evaluated. The data obtained show that (i) due to the methodical nuances the acute toxicity data of lanthanides are not reliable and have doubtful scientific value even for preliminary toxicity screening and thus should not be used for risk assessment; (ii) toxicity of lanthanides in the 21-day D. magna reproduction test was high whereas the mortality of parent daphnids was more sensitive endpoint than reproduction; (iii) the long-term LC50 values for lanthanides varied from 0.3 to 0.5 mg Ln/L and the differences between individual Ln were not statistically significant. All in all, the results of this study allow us to conclude that the environmental risk assessment of lanthanides should be performed only using long-term toxicity tests. In the environmental risk assessment, lanthanides may be considered as a uniform group of elements with additive mode of action until future investigations will not reveal differences in the ecotoxicity mechanisms of these elements.
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Affiliation(s)
- I Blinova
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Tallinn 12618, Estonia.
| | - A Lukjanova
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Tallinn 12618, Estonia
| | - M Muna
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Tallinn 12618, Estonia; Department of Materials and Environmental Technology, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia
| | - H Vija
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Tallinn 12618, Estonia
| | - A Kahru
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Tallinn 12618, Estonia; Estonian Academy of Sciences, Tallinn 10130, Kohtu 6, Estonia
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28
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Pikula KS, Zakharenko AM, Chaika VV, Vedyagin AA, Orlova TY, Mishakov IV, Kuznetsov VL, Park S, Renieri EA, Kahru A, Tsatsakis AM, Golokhvast KS. Effects of carbon and silicon nanotubes and carbon nanofibers on marine microalgae Heterosigma akashiwo. ENVIRONMENTAL RESEARCH 2018; 166:473-480. [PMID: 29957500 DOI: 10.1016/j.envres.2018.06.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 05/20/2018] [Accepted: 06/03/2018] [Indexed: 06/08/2023]
Abstract
The effect of carbon and silicon nanotubes (CNTs and SiNTs) and carbon nanofibers (CNFs) to microscopic marine algae Heterosigma akashiwo was studied, using algal growth inhibition for 3 days (acute effect) and 7 days (chronic effect) as toxicity endpoints. The criterion of the toxic effect was the statistically significant reduction of the number of algal cells in the exposed samples compared to the control. Samples did not demonstrate toxic effects at doses 1 mg/l and 10 mg/l. CNTs and SiNTs samples at 100 mg/l exhibited both acute and chronic toxic effects. We assume that the main cause of cell death in these samples was related to the mechanical damage of cell integrity. CNFs at concentrations of 100 mg/l did not inhibit algal growth, but cells with irregular shapes were observed, which were not observed after exposure to CNTs and SiNTs. Nickel impurities present in CNFs samples are presumably the main cause of observed cell deformations.
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Affiliation(s)
- K S Pikula
- Far Eastern Federal University, Vladivostok, Russian Federation
| | - A M Zakharenko
- Far Eastern Federal University, Vladivostok, Russian Federation.
| | - V V Chaika
- Far Eastern Federal University, Vladivostok, Russian Federation
| | - A A Vedyagin
- Boreskov Institute of Catalysis, Novosibirsk, Russian Federation
| | - T Yu Orlova
- A.V. Zhirmunsky Institute of Marine Biology of the Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia
| | - I V Mishakov
- Boreskov Institute of Catalysis, Novosibirsk, Russian Federation
| | - V L Kuznetsov
- Boreskov Institute of Catalysis, Novosibirsk, Russian Federation
| | - S Park
- Inha University, Incheon, Republic of Korea
| | - E A Renieri
- Laboratory of Toxicology, Medical School, University of Crete, Heraklion, Greece
| | - A Kahru
- National Institute of Chemical Physics and Biophysics, Tallinn, Estonia; Estonian Academy of Sciences, Kohtu 6, 10130 Tallinn, Estonia
| | - A M Tsatsakis
- Laboratory of Toxicology, Medical School, University of Crete, Heraklion, Greece
| | - K S Golokhvast
- Far Eastern Federal University, Vladivostok, Russian Federation; Pacific Geographical Institute FEB RAS, Vladivostok, Russian Federation
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29
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Blinova I, Vija H, Lukjanova A, Muna M, Syvertsen-Wiig G, Kahru A. Assessment of the hazard of nine (doped) lanthanides-based ceramic oxides to four aquatic species. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 612:1171-1176. [PMID: 28892861 DOI: 10.1016/j.scitotenv.2017.08.274] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 06/29/2017] [Accepted: 08/27/2017] [Indexed: 06/07/2023]
Abstract
The risk of environmental pollution with rare earth oxides rises in line with increasing application of these compounds in different sectors. However, data on potential environmental hazard of lanthanides is scarce and concerns mostly Ce and Gd. In this work, the aquatic toxicity of eight doped lanthanide-based ceramic oxides (Ce0.9Gd0.1O2, LaFeO3, Gd0.97CoO3, LaCoO3, (La0.5Sr0.5)0.99MnO3, Ce0.8Pr0.2O2, (La0.6Sr0.4)0.95CoO3, LaNiO4) and one non-doped oxide (CeO2) with primary size from 23 to 590nm were evaluated in four short-term laboratory assays with freshwater crustaceans and duckweeds. Results showed no acute toxicity (EC50>100mg/L) or very low acute toxicity for most studied oxides. Observed toxicity was probably due to bioavailable fraction of dopant metals (Ni and Co) but in the case of aquatic plants, decrease of nutrient availability (complexing of phosphorus by lanthanides) was also presumed. Studied oxides/metals accumulated in the aquatic plant tissue and in the gut of crustaceans and thus may be further transferred via the aquatic food chain. Accumulation of metals in the duckweed Lemna minor may be recommended as a cost-effective screening bioassay for assessment of potential hazard of poorly soluble oxides to aquatic ecosystems.
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Affiliation(s)
- Irina Blinova
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, Tallinn 12618, Estonia.
| | - Heiki Vija
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, Tallinn 12618, Estonia
| | - Aljona Lukjanova
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, Tallinn 12618, Estonia
| | - Marge Muna
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, Tallinn 12618, Estonia; Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia
| | | | - Anne Kahru
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, Tallinn 12618, Estonia; Estonian Academy of Sciences, Kohtu 6, Tallinn 10130, Estonia
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30
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Kurvet I, Juganson K, Vija H, Sihtmäe M, Blinova I, Syvertsen-Wiig G, Kahru A. Toxicity of Nine (Doped) Rare Earth Metal Oxides and Respective Individual Metals to Aquatic Microorganisms Vibrio fischeri and Tetrahymena thermophila. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E754. [PMID: 28773114 PMCID: PMC5551797 DOI: 10.3390/ma10070754] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 06/13/2017] [Accepted: 06/30/2017] [Indexed: 01/31/2023]
Abstract
Despite the increasing use of rare earth elements (REEs) and oxides (REOs) in various technologies, the information on their ecotoxicological hazard is scarce. Here, the effects of La3+, Ce3+, Pr3+, Nd3+, Gd3+, CeO₂, and eight doped REOs to marine bacteria Vibrio fischeri and freshwater protozoa Tetrahymena thermophila were studied in parallel with REO dopant metals (Co2+, Fe3+, Mn2+, Ni2+, Sr2+). The highest concentrations of REOs tested were 100 mg/L with protozoa in deionized water and 500 mg/L with bacteria in 2% NaCl. Although (i) most REOs produced reactive oxygen species; (ii) all studied soluble REEs were toxic to bacteria (half-effective concentration, EC50 3.5-21 mg metal/L; minimal bactericidal concentration, MBC 6.3-63 mg/L) and to protozoa (EC50 28-42 mg/L); and (iii) also some dopant metals (Ni2+, Fe3+) proved toxic (EC50 ≤ 3 mg/L), no toxicity of REOs to protozoa (EC50 > 100 mg/L) and bacteria (EC50 > 500 mg/L; MBC > 500 mg/L) was observed except for La₂NiO₄ (MBC 25 mg/L). According to kinetics of V. fischeri bioluminescence, the toxicity of REEs was triggered by disturbing cellular membrane integrity. Fortunately, as REEs and REOs are currently produced in moderate amounts and form in the environment insoluble salts and/or oxides, they apparently present no harm to aquatic bacteria and protozoa.
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Affiliation(s)
- Imbi Kurvet
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia.
| | - Katre Juganson
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia.
- School of Science, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia.
| | - Heiki Vija
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia.
| | - Mariliis Sihtmäe
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia.
| | - Irina Blinova
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia.
| | | | - Anne Kahru
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia.
- Estonian Academy of Sciences, Kohtu 6, 10130 Tallinn, Estonia.
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