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Antonopoulou M, Tzamaria A, Pedrosa MFF, Ribeiro ARL, Silva AMT, Kaloudis T, Hiskia A, Vlastos D. Spirulina-based carbon materials as adsorbents for drinking water taste and odor control: Removal efficiency and assessment of cyto-genotoxic effects. Sci Total Environ 2024; 927:172227. [PMID: 38582104 DOI: 10.1016/j.scitotenv.2024.172227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 03/27/2024] [Accepted: 04/03/2024] [Indexed: 04/08/2024]
Abstract
The sensory quality of drinking water, and particularly its taste and odor (T&O) is a key determinant of consumer acceptability, as consumers evaluate water by their senses. Some of the conventional treatment processes to control compounds which impart unpleasant T&O have limitations because of their low efficiency and/or high costs. Therefore, there is a great need to develop an effective process for removing T&O compounds without secondary concerns. The primary objective of this study was to assess for the first time the effectiveness of spirulina-based carbon materials in removing geosmin (GSM) and 2-methylisoborneol (2-MIB) from water, two commonly occurring natural T&O compounds. The efficiency of the materials to remove environmentally relevant concentrations of GSM and 2-MIB (ng L-1) from ultrapure and raw water was investigated using a sensitive headspace solid-phase microextraction coupled with gas chromatography mass spectrometry (HS-SPME-GC/MS) method. Moreover, the genotoxic and cytotoxic effects of the spirulina-based materials were assessed for the first time to evaluate their safety and their potential in the treatment of water for human consumption. Based on the results, spirulina-based materials were found to be promising for drinking water treatment applications, as they did not exert geno-cytotoxic effects on human cells, while presenting high efficiency in removing GSM and 2-MIB from water.
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Affiliation(s)
- Maria Antonopoulou
- Department of Sustainable Agriculture, University of Patras, 30131 Agrinio, Greece.
| | - Anna Tzamaria
- Department of Sustainable Agriculture, University of Patras, 30131 Agrinio, Greece
| | - Marta F F Pedrosa
- LSRE-LCM - Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Ana R L Ribeiro
- LSRE-LCM - Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Adrián M T Silva
- LSRE-LCM - Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal; ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Triantafyllos Kaloudis
- Institute of Nanoscience & Nanotechnology, NCSR "Demokritos", Patr. Gregoriou E' & 27 Neapoleos Str, 15341 Agia Paraskevi, Athens, Greece
| | - Anastasia Hiskia
- Institute of Nanoscience & Nanotechnology, NCSR "Demokritos", Patr. Gregoriou E' & 27 Neapoleos Str, 15341 Agia Paraskevi, Athens, Greece
| | - Dimitris Vlastos
- Department of Biology, Section of Genetics Cell Biology and Development, University of Patras, 26500 Patras, Greece
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Paraskevopoulou A, Kaloudis T, Hiskia A, Steinhaus M, Dimotikali D, Triantis TM. Volatile Profiling of Spirulina Food Supplements. Foods 2024; 13:1257. [PMID: 38672929 PMCID: PMC11049305 DOI: 10.3390/foods13081257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/08/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024] Open
Abstract
Spirulina, a cyanobacterium widely used as a food supplement due to its high nutrient value, contains volatile organic compounds (VOCs). It is crucial to assess the presence of VOCs in commercial spirulina products, as they could influence sensory quality, various processes, and technological aspects. In this study, the volatile profiles of seventeen commercial spirulina food supplements were determined using headspace solid-phase microextraction (HS-SPME), coupled with gas chromatography-mass spectrometry (GC-MS). The identification of volatile compounds was achieved using a workflow that combined data processing with software tools and reference databases, as well as retention indices (RI) and elution order data. A total of 128 VOCs were identified as belonging to chemical groups of alkanes (47.2%), ketones (25.7%), aldehydes (10.9%), alcohols (8.4%), furans (3.7%), alkenes (1.8%), esters (1.1%), pyrazines (0.8%), and other compounds (0.4%). Major volatiles among all samples were hydrocarbons, especially heptadecane and heptadec-8-ene, followed by ketones (i.e., 4-(2,6,6-trimethyl-1-cyclohexen-1-yl)-3-buten-2-one, β-ionone, 2,2,6-trimethylcyclohexan-1-one), aldehydes (i.e., hexanal), and the alcohol oct-1-en-3-ol. Several volatiles were found in spirulina dietary supplements for the first time, including 6,10-dimethylundeca-5,9-dien-2-one (geranylacetone), 6,10,14-trimethylpentadecan-2-one, hept-2-enal, octanal, nonanal, oct-2-en-1-ol, heptan-1-ol, nonan-1-ol, tetradec-9-en-1-ol, 4,4-dimethylcyclohex-2-en-1-ol, 2,6-diethylpyrazine, and 1-(2,5-dimethylfuran-3-yl) ethanone. The methodology used for VOC analysis ensured high accuracy, reliability, and confidence in compound identification. Results reveal a wide variety of volatiles in commercial spirulina products, with numerous newly discovered compounds, prompting further research on sensory quality and production methods.
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Affiliation(s)
- Aikaterina Paraskevopoulou
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research “Demokritos”, Patriarchou Grigoriou E & 27 Neapoleos Str., Agia Paraskevi, 15341 Athens, Greece; (A.P.); (T.K.); (A.H.)
- School of Chemical Engineering, National Technical University of Athens, Iroon Politechniou 9, Zografou, 15780 Athens, Greece;
| | - Triantafyllos Kaloudis
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research “Demokritos”, Patriarchou Grigoriou E & 27 Neapoleos Str., Agia Paraskevi, 15341 Athens, Greece; (A.P.); (T.K.); (A.H.)
- Department of Water Quality Control, Athens Water Supply and Sewerage Company (EYDAP SA), 156 Oropou Str., 11146 Athens, Greece
| | - Anastasia Hiskia
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research “Demokritos”, Patriarchou Grigoriou E & 27 Neapoleos Str., Agia Paraskevi, 15341 Athens, Greece; (A.P.); (T.K.); (A.H.)
| | - Martin Steinhaus
- Leibniz Institute for Food Systems Biology at the Technical University of Munich (Leibniz-LSB@TUM), Lise-Meitner-Straße 34, 85354 Freising, Germany;
| | - Dimitra Dimotikali
- School of Chemical Engineering, National Technical University of Athens, Iroon Politechniou 9, Zografou, 15780 Athens, Greece;
| | - Theodoros M. Triantis
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research “Demokritos”, Patriarchou Grigoriou E & 27 Neapoleos Str., Agia Paraskevi, 15341 Athens, Greece; (A.P.); (T.K.); (A.H.)
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Piel T, Sandrini G, Weenink EFJ, Qin H, Herk MJV, Morales-Grooters ML, Schuurmans JM, Slot PC, Wijn G, Arntz J, Zervou SK, Kaloudis T, Hiskia A, Huisman J, Visser PM. Shifts in phytoplankton and zooplankton communities in three cyanobacteria-dominated lakes after treatment with hydrogen peroxide. Harmful Algae 2024; 133:102585. [PMID: 38485435 DOI: 10.1016/j.hal.2024.102585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 12/22/2023] [Accepted: 01/18/2024] [Indexed: 03/19/2024]
Abstract
Cyanobacteria can reach high densities in eutrophic lakes, which may cause problems due to their potential toxin production. Several methods are in use to prevent, control or mitigate harmful cyanobacterial blooms. Treatment of blooms with low concentrations of hydrogen peroxide (H2O2) is a promising emergency method. However, effects of H2O2 on cyanobacteria, eukaryotic phytoplankton and zooplankton have mainly been studied in controlled cultures and mesocosm experiments, while much less is known about the effectiveness and potential side effects of H2O2 treatments on entire lake ecosystems. In this study, we report on three different lakes in the Netherlands that were treated with average H2O2 concentrations ranging from 2 to 5 mg L-1 to suppress cyanobacterial blooms. Effects on phytoplankton and zooplankton communities, on cyanotoxin concentrations, and on nutrient availability in the lakes were assessed. After every H2O2 treatment, cyanobacteria drastically declined, sometimes by more than 99%, although blooms of Dolichospermum sp., Aphanizomenon sp., and Planktothrix rubescens were more strongly suppressed than a Planktothrix agardhii bloom. Eukaryotic phytoplankton were not significantly affected by the H2O2 additions and had an initial advantage over cyanobacteria after the treatment, when ample nutrients and light were available. In all three lakes, a new cyanobacterial bloom developed within several weeks after the first H2O2 treatment, and in two lakes a second H2O2 treatment was therefore applied to again suppress the cyanobacterial population. Rotifers strongly declined after most H2O2 treatments except when the H2O2 concentration was ≤ 2 mg L-1, whereas cladocerans were only mildly affected and copepods were least impacted by the added H2O2. In response to the treatments, the cyanotoxins microcystins and anabaenopeptins were released from the cells into the water column, but disappeared after a few days. We conclude that lake treatments with low concentrations of H2O2 can be a successful tool to suppress harmful cyanobacterial blooms, but may negatively affect some of the zooplankton taxa in lakes. We advise pre-tests prior to the treatment of lakes to define optimal treatment concentrations that kill the majority of the cyanobacteria and to minimize potential side effects on non-target organisms. In some cases, the pre-tests may discourage treatment of the lake.
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Affiliation(s)
- Tim Piel
- Department of Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94240,1090 GE Amsterdam, The Netherlands; Agendia NV, 1043 NT Amsterdam, The Netherlands
| | - Giovanni Sandrini
- Department of Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94240,1090 GE Amsterdam, The Netherlands; Department of Technology & Sources, Evides Water Company, 3006 AL Rotterdam, The Netherlands
| | - Erik F J Weenink
- Department of Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94240,1090 GE Amsterdam, The Netherlands
| | - Hongjie Qin
- Department of Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94240,1090 GE Amsterdam, The Netherlands; Guangdong Provincial Key Lab of Ornamental Plant Germplasm Innovation and Utilization, Environmental Horticulture Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China; Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Maria J van Herk
- Department of Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94240,1090 GE Amsterdam, The Netherlands
| | - Mariël Léon Morales-Grooters
- Department of Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94240,1090 GE Amsterdam, The Netherlands; Department of Biomedical Engineering, Erasmus MC University Rotterdam, Office Ee2302, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands
| | - J Merijn Schuurmans
- Department of Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94240,1090 GE Amsterdam, The Netherlands
| | - Pieter C Slot
- Department of Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94240,1090 GE Amsterdam, The Netherlands
| | - Geert Wijn
- Arcadis Nederland B.V., P.O. Box 264, 6800 AG Arnhem, The Netherlands
| | - Jasper Arntz
- Arcadis Nederland B.V., P.O. Box 264, 6800 AG Arnhem, The Netherlands
| | - Sevasti-Kiriaki Zervou
- Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience and Nanotechnology, National Centre for Scientific Research, "Demokritos", Patriarchou Gregoriou E & 27 Neapoleos Str, 15341 Athens, Greece
| | - Triantafyllos Kaloudis
- Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience and Nanotechnology, National Centre for Scientific Research, "Demokritos", Patriarchou Gregoriou E & 27 Neapoleos Str, 15341 Athens, Greece; Laboratory of Organic Micropollutants, Water Quality Control Department, Athens Water Supply & Sewerage Company (EYDAP SA), Athens, Greece
| | - Anastasia Hiskia
- Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience and Nanotechnology, National Centre for Scientific Research, "Demokritos", Patriarchou Gregoriou E & 27 Neapoleos Str, 15341 Athens, Greece
| | - Jef Huisman
- Department of Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94240,1090 GE Amsterdam, The Netherlands
| | - Petra M Visser
- Department of Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94240,1090 GE Amsterdam, The Netherlands
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Zervou SK, Hammoud NA, Godin S, Hiskia A, Szpunar J, Lobinski R. Detection of secondary cyanobacterial metabolites using LC-HRMS in Lake Karaoun. Sci Total Environ 2023:164725. [PMID: 37290649 DOI: 10.1016/j.scitotenv.2023.164725] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/22/2023] [Accepted: 06/05/2023] [Indexed: 06/10/2023]
Abstract
Harmful algal blooms events have been reported worldwide and during the last decades are occurred with increasing frequency and intensity due to the climate change and the high inputs of nutrients in freshwaters from anthropogenic activities. During blooms cyanobacteria release in water their toxic secondary metabolites, known as cyanotoxins, along with other bioactive metabolites. Due to the negative impacts of these compounds on aquatic ecosystems and public health, there is an urgent need to detect and identify known and unknown cyanobacterial metabolites in surface waters. In the frame of the present study, a method based on liquid chromatography - high resolution mass spectrometry (LC-HRMS) was developed to investigate the presence of cyanometabolites in bloom samples from Lake Karaoun, Lebanon. Data analysis was performed using Compound Discoverer software with related tools and databases in combination to the CyanoMetDB mass list for detection, identification and structural elucidation of the cyanobacterial metabolites. In the course of this study, 98 cyanometabolites were annotated including 51 cyanotoxins belonging to microcystins, 15 microginins, 10 aeruginosins, 6 cyclamides, 5 anabaenopeptins, a cyanopeptolin, the dipeptides radiosumin B and dehydroradiosumin, the planktoncyclin and a mycosporine-like amino acid. Out of them, 7 new cyanobacterial metabolites, the chlorinated MC-ClYR, [epoxyAdda5]MC-YR, MC-LI, aeruginosin 638, aeruginosin 588, microginin 755C and microginin 727 were discovered. Moreover, the presence of anthropogenic contaminants was recorded indicating the pollution of the lake and emphasizing the need for assessment of the co-occurrence of cyanotoxins, other cyanobacterial metabolites and other compounds hazardous to the environment. Overall, results prove the suitability of the proposed approach for the detection of cyanobacterial metabolites in environmental samples but also highlight the necessity of spectral libraries for these compounds, considering the absence of their reference standards.
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Affiliation(s)
- Sevasti-Kiriaki Zervou
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research "Demokritos", 15431 Agia Paraskevi, Greece.
| | - Noura Alice Hammoud
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research "Demokritos", 15431 Agia Paraskevi, Greece; Institute of Analytical and Physical Chemistry for the Environment and Materials, (IPREM-UMR 5254), CNRS, E2S UPPA, 64000 Pau, France.
| | - Simon Godin
- Institute of Analytical and Physical Chemistry for the Environment and Materials, (IPREM-UMR 5254), CNRS, E2S UPPA, 64000 Pau, France.
| | - Anastasia Hiskia
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research "Demokritos", 15431 Agia Paraskevi, Greece.
| | - Joanna Szpunar
- Institute of Analytical and Physical Chemistry for the Environment and Materials, (IPREM-UMR 5254), CNRS, E2S UPPA, 64000 Pau, France.
| | - Ryszard Lobinski
- Institute of Analytical and Physical Chemistry for the Environment and Materials, (IPREM-UMR 5254), CNRS, E2S UPPA, 64000 Pau, France.
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Antonopoulou M, Bika P, Papailias I, Zervou SK, Vrettou A, Efthimiou I, Mitrikas G, Ioannidis N, Trapalis C, Dallas P, Vlastos D, Hiskia A. Photocatalytic degradation of organic micropollutants under UV-A and visible light irradiation by exfoliated g-C 3N 4 catalysts. Sci Total Environ 2023:164218. [PMID: 37211132 DOI: 10.1016/j.scitotenv.2023.164218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 05/02/2023] [Accepted: 05/13/2023] [Indexed: 05/23/2023]
Abstract
In the present study, the photocatalytic performance of exfoliated graphitic carbon nitride (g-C3N4) catalysts, with enhanced properties and response in UV and visible light irradiation, was evaluated for the removal of selected contaminants i.e., diuron, bisphenol A and ethyl paraben. Commercial TiO2 Degussa P25 was also used as a reference photocatalyst. g-C3N4 catalysts demonstrated good photocatalytic activity which in some cases is comparable to TiO2 Degussa P25 leading to high removal percentages of the studied micropollutants under UV-A light irradiation. In contrast to TiO2 Degussa P25, g-C3N4 catalysts were also able to degrade the studied micropollutants under visible light irradiation. For all the studied g-C3N4 under both UV-A and visible light irradiation, the overall degradation rate decreases in the order of bisphenol A > diuron > ethyl paraben. Among the studied g-C3N4, the chemically exfoliated catalyst (g-C3N4-CHEM) showed superior photocatalytic activity under UV-A light irradiation due to its enhanced characteristics, such as pore volume and specific surface area and ~ 82.0 in 6 min, ~75.7 in 15 min and ~ 96.3 % in 40 min removals were achieved for BPA, DIU and EP, respectively. Under visible light irradiation, the thermally exfoliated catalyst (g-C3N4-THERM) demonstrated the best photocatalytic performance and the degradation ranged from ~29.5 to 59.4 % after 120 min. EPR data revealed that the three g-C3N4 semiconductors generate mainly O2•-, whereas TiO2 generates both HO• and O2•-, the latter only under UV-A light irradiation. Nevertheless, the indirect formation of HO• in the case of g-C3N4 should also be considered. Hydroxylation, oxidation, dealkylation, dechlorination and ring opening were the main degradation pathways. The process proceeded without significant alterations in toxicity levels. Based on the results, heterogeneous photocatalysis using g-C3N4 catalysts is a promising method for the removal of organic micropollutants without the formation of harmful transformation products.
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Affiliation(s)
- Maria Antonopoulou
- Department of Sustainable Agriculture, University of Patras, 30100, Agrinio, Greece.
| | - Panagiota Bika
- Institute of Nanoscience & Nanotechnology, NCSR "Demokritos", Patr. Gregoriou E' & 27 Neapoleos Str, 15341 Agia Paraskevi, Athens, Greece
| | - Ilias Papailias
- Institute of Nanoscience & Nanotechnology, NCSR "Demokritos", Patr. Gregoriou E' & 27 Neapoleos Str, 15341 Agia Paraskevi, Athens, Greece
| | - Sevasti-Kiriaki Zervou
- Institute of Nanoscience & Nanotechnology, NCSR "Demokritos", Patr. Gregoriou E' & 27 Neapoleos Str, 15341 Agia Paraskevi, Athens, Greece
| | - Androniki Vrettou
- Institute of Nanoscience & Nanotechnology, NCSR "Demokritos", Patr. Gregoriou E' & 27 Neapoleos Str, 15341 Agia Paraskevi, Athens, Greece
| | - Ioanna Efthimiou
- Department of Sustainable Agriculture, University of Patras, 30100, Agrinio, Greece
| | - George Mitrikas
- Institute of Nanoscience & Nanotechnology, NCSR "Demokritos", Patr. Gregoriou E' & 27 Neapoleos Str, 15341 Agia Paraskevi, Athens, Greece
| | - Nikolaos Ioannidis
- Institute of Nanoscience & Nanotechnology, NCSR "Demokritos", Patr. Gregoriou E' & 27 Neapoleos Str, 15341 Agia Paraskevi, Athens, Greece
| | - Christos Trapalis
- Institute of Nanoscience & Nanotechnology, NCSR "Demokritos", Patr. Gregoriou E' & 27 Neapoleos Str, 15341 Agia Paraskevi, Athens, Greece
| | - Panagiotis Dallas
- Institute of Nanoscience & Nanotechnology, NCSR "Demokritos", Patr. Gregoriou E' & 27 Neapoleos Str, 15341 Agia Paraskevi, Athens, Greece
| | - Dimitris Vlastos
- Department of Biology, Section of Genetics Cell Biology and Development, University of Patras, 26500 Patras, Greece
| | - Anastasia Hiskia
- Institute of Nanoscience & Nanotechnology, NCSR "Demokritos", Patr. Gregoriou E' & 27 Neapoleos Str, 15341 Agia Paraskevi, Athens, Greece
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Varriale F, Tartaglione L, Zervou SK, Miles CO, Mazur-Marzec H, Triantis TM, Kaloudis T, Hiskia A, Dell'Aversano C. Untargeted and targeted LC-MS and data processing workflow for the comprehensive analysis of oligopeptides from cyanobacteria. Chemosphere 2023; 311:137012. [PMID: 36397634 DOI: 10.1016/j.chemosphere.2022.137012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 09/26/2022] [Accepted: 10/23/2022] [Indexed: 06/16/2023]
Abstract
Cyanobacteria produce a plethora of structurally diverse bioactive secondary metabolites, including cyanotoxins which pose a serious threat to humans and other living organisms worldwide. Currently, a wide variety of mass spectrometry-based methods for determination of microcystins (MCs), the most commonly occurring and studied class of cyanotoxins, have been developed and employed for research and monitoring purposes. The scarcity of commercially available reference materials, together with the ever-growing range of mass spectrometers and analytical approaches, make the accuracy of quantitative analyses a critical point to be carefully investigated in view of a reliable risk evaluation. This study reports, a comparative investigation of the qualitative and quantitative MCs profile obtained using targeted and untargeted liquid chromatography-mass spectrometry approaches for the analyses of cyanobacterial biomass from Lake Kastoria, Greece. Comparison of the total MCs content measured by the two approaches showed good correlation, with variations in the range of 3.8-13.2%. In addition, the implementation of an analytical workflow on a hybrid linear ion trap/orbitrap mass spectrometer is described, based on combining data-dependent acquisition and a powerful database of cyanobacterial metabolites (CyanoMetDB) for the annotation of known and discovery of new cyanopeptides. This untargeted strategy proved highly effective for the identification of MCs, microginins, anabaenopeptins, and micropeptins. The systematic interpretation of the acquired fragmentation patterns allowed the elucidation of two new MC structural variants, MC-PrhcysR and MC-Prhcys(O)R, and proposal of structures for two new microginins, isomeric cyanostatin B and MG 821A, and three isomeric micropeptins at m/z 846.4715, 846.4711 and 846.4723.
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Affiliation(s)
- Fabio Varriale
- University of Napoli Federico II, Department of Pharmacy, School of Medicine and Surgery, Via D. Montesano 49, 80131, Napoli, Italy
| | - Luciana Tartaglione
- University of Napoli Federico II, Department of Pharmacy, School of Medicine and Surgery, Via D. Montesano 49, 80131, Napoli, Italy; CoNISMa - National Inter-University Consortium for Marine Sciences, Piazzale Flaminio 9, 00196, Rome, Italy.
| | - Sevasti-Kiriaki Zervou
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience and Nanotechnology (INN), National Center for Scientific Research "Demokritos", Patriarchou Grigoriou E & 27 Neapoleos Str, 15341 Agia Paraskevi, Athens, Greece
| | - Christopher O Miles
- Biotoxin Metrology, National Research Council Canada, 1411 Oxford Street, Nova Scotia, Canada
| | - Hanna Mazur-Marzec
- Division of Marine Biotechnology, Faculty of Oceanography and Geography, University of Gdańsk, Poland
| | - Theodoros M Triantis
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience and Nanotechnology (INN), National Center for Scientific Research "Demokritos", Patriarchou Grigoriou E & 27 Neapoleos Str, 15341 Agia Paraskevi, Athens, Greece
| | - Triantafyllos Kaloudis
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience and Nanotechnology (INN), National Center for Scientific Research "Demokritos", Patriarchou Grigoriou E & 27 Neapoleos Str, 15341 Agia Paraskevi, Athens, Greece
| | - Anastasia Hiskia
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience and Nanotechnology (INN), National Center for Scientific Research "Demokritos", Patriarchou Grigoriou E & 27 Neapoleos Str, 15341 Agia Paraskevi, Athens, Greece
| | - Carmela Dell'Aversano
- University of Napoli Federico II, Department of Pharmacy, School of Medicine and Surgery, Via D. Montesano 49, 80131, Napoli, Italy; CoNISMa - National Inter-University Consortium for Marine Sciences, Piazzale Flaminio 9, 00196, Rome, Italy
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7
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Akcaalan R, Devesa-Garriga R, Dietrich A, Steinhaus M, Dunkel A, Mall V, Manganelli M, Scardala S, Testai E, Codd GA, Kozisek F, Antonopoulou M, Ribeiro ARL, Sampaio MJ, Hiskia A, Triantis TM, Dionysiou DD, Puma GL, Lawton L, Edwards C, Andersen HR, Fatta-Kassinos D, Karaolia P, Combès A, Panksep K, Zervou SK, Albay M, Köker L, Chernova E, Iliakopoulou S, Varga E, Visser PM, Gialleli AI, Zengin Z, Deftereos N, Miskaki P, Christophoridis C, Paraskevopoulou A, Lin TF, Zamyadi A, Dimova G, Kaloudis T. Water taste and odor (T&O): Challenges, gaps and solutions from a perspective of the WaterTOP network. Chemical Engineering Journal Advances 2022. [DOI: 10.1016/j.ceja.2022.100409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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Willi A, Patcas R, Zervou SK, Panayi N, Schätzle M, Eliades G, Hiskia A, Eliades T. Leaching from a 3D-printed aligner resin. Eur J Orthod 2022; 45:244-249. [PMID: 36130120 DOI: 10.1093/ejo/cjac056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
AIM To quantitatively assess the degree of conversion and the water-leaching targeted compound from 3D-printed aligners. MATERIALS AND METHODS 3D-printed aligners were made of photopolymerized resin (Tera Harz TC85A). The molecular structure and degree of conversion of the set resin were investigated by ATR-FTIR spectroscopy (n = 5). The aligners (n = 10) were immersed in double distilled water for 1 week at 37°C and the eluents were analysed using liquid chromatography/mass spectrometry methods (LC-ESI-MS/MS for urethane dimethacrylate [UDMA] and LC-APCI-MS/MS for bispenol-A [BPA]). RESULTS The resin was composed of aliphatic vinyl ester-urethane monomers, with acrylate and/or methacrylate functionalization. The degree of conversion was estimated as to 83%. There was no detection of BPA in any of the assessed samples (0.25 µg/l). Quantifiable amounts of UDMA were detected in all the exposed samples, ranging from 29 to 96 µg/l. CONCLUSIONS Although efficiently polymerized and BPA free, the great variability in the amount of UDMA monomer leached from the examined samples may raise concerns on potential health hazards after repeated intraoral exposure, which is indicated for this class of materials.
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Affiliation(s)
- Andreas Willi
- Clinic of Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zurich, Switzerland
| | - Raphael Patcas
- Clinic of Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zurich, Switzerland
| | - Sevasti-Kiriaki Zervou
- Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience and Nanotechnology, National Centre for Scientific Research Demokritos, Athens, Greece
| | - Nearchos Panayi
- Clinic of Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zurich, Switzerland.,Department of Dentistry, European University Cyrpus, Nicosia, Cyprus
| | - Marc Schätzle
- Clinic of Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zurich, Switzerland
| | - George Eliades
- Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience and Nanotechnology, National Centre for Scientific Research Demokritos, Athens, Greece.,Department of Biomaterials, School of Dentistry, National and Kapodistrian University of Athens, Greece
| | - Anastasia Hiskia
- Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience and Nanotechnology, National Centre for Scientific Research Demokritos, Athens, Greece
| | - Theodore Eliades
- Clinic of Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zurich, Switzerland
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Sergi E, Orfanakis M, Dimitriadi A, Christou M, Zachopoulou A, Kourkouta C, Printzi A, Zervou SK, Makridis P, Hiskia A, Koumoundouros G. Sublethal exposure to Microcystis aeruginosa extracts during embryonic development reduces aerobic swimming capacity in juvenile zebrafish. Aquat Toxicol 2022; 243:106074. [PMID: 35030472 DOI: 10.1016/j.aquatox.2022.106074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 11/26/2021] [Accepted: 01/03/2022] [Indexed: 06/14/2023]
Abstract
In the last decades, cyanobacterial harmful algal blooms (CyanoHABs) pose an intensifying ecological threat. Microcystis aeruginosa is a common CyanoHAB species in freshwater ecosystems, with severe toxic effects in a wide range of organisms. In the present paper we examined whether transient and short (48 h) exposure of fish embryos to sublethal levels of M. aeruginosa crude extract (200 mg biomass dw L-1) affects swimming performance at later life stages (end of metamorphosis, ca 12 mm TL, 22,23 days post-fertilization). Pre-exposed metamorphosing larvae presented a significant decrease in swimming performance (9.7 ± 1.6 vs 11.4 ± 1.7 TL s-1 in the control group, p < 0.01), and a significant decrease in the ventricle length-to-depth ratio (1.23 ± 0.15 vs 1.42 ± 0.15 in control fish, p < 0.05). In addition, extract-exposed fish presented significantly elevated rates of vertebral abnormalities (82 ± 13% vs 7 ± 4% in the control group), mainly consisting of the presence of extra neural and haemal processes. No significant differences between groups were detected in survival and growth rates. Results are discussed in respect to the mechanisms that might mediate the detected cyanobacterial effects. This is the first evidence of a direct link between sublethal exposure to M. aeruginosa during the embryonic period and swimming performance at later life-stages. Decreased swimming performance, altered cardiac shape, and elevated vertebral abnormalities in response to early exposure to M. aeruginosa could have significant effects on fish populations in the wild.
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Affiliation(s)
| | | | | | - Maria Christou
- Biology Department, University of Crete, Heraklion, Greece
| | | | | | - Alice Printzi
- Biology Department, University of Crete, Heraklion, Greece
| | - Sevasti-Kiriaki Zervou
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience and Nanotechnology, NCSR "Demokritos", Athens, Greece
| | | | - Anastasia Hiskia
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience and Nanotechnology, NCSR "Demokritos", Athens, Greece
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Zervou SK, Kaloudis T, Gkelis S, Hiskia A, Mazur-Marzec H. Anabaenopeptins from Cyanobacteria in Freshwater Bodies of Greece. Toxins (Basel) 2021; 14:4. [PMID: 35050981 PMCID: PMC8781842 DOI: 10.3390/toxins14010004] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 12/06/2021] [Accepted: 12/15/2021] [Indexed: 12/27/2022] Open
Abstract
Cyanobacteria are photosynthetic microorganisms that are able to produce a large number of secondary metabolites. In freshwaters, under favorable conditions, they can rapidly multiply, forming blooms, and can release their toxic/bioactive metabolites in water. Among them, anabaenopeptins (APs) are a less studied class of cyclic bioactive cyanopeptides. The occurrence and structural variety of APs in cyanobacterial blooms and cultured strains from Greek freshwaters were investigated. Cyanobacterial extracts were analyzed with LC-qTRAP MS/MS using information-dependent acquisition in enhanced ion product mode in order to obtain the fragmentation mass spectra of APs. Thirteen APs were detected, and their possible structures were annotated based on the elucidation of fragmentation spectra, including three novel ones. APs were present in the majority of bloom samples (91%) collected from nine Greek lakes during different time periods. A large variety of APs was observed, with up to eight congeners co-occurring in the same sample. AP F (87%), Oscillamide Y (87%) and AP B (65%) were the most frequently detected congeners. Thirty cyanobacterial strain cultures were also analyzed. APs were only detected in one strain (Microcystis ichtyoblabe). The results contribute to a better understanding of APs produced by freshwater cyanobacteria and expand the range of structurally characterized APs.
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Affiliation(s)
- Sevasti-Kiriaki Zervou
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, National Centre for Scientific Research “Demokritos”, Patriarchou Grigoriou E & 27 Neapoleos Str., 15310 Athens, Greece; (T.K.); (A.H.)
| | - Triantafyllos Kaloudis
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, National Centre for Scientific Research “Demokritos”, Patriarchou Grigoriou E & 27 Neapoleos Str., 15310 Athens, Greece; (T.K.); (A.H.)
| | - Spyros Gkelis
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Anastasia Hiskia
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, National Centre for Scientific Research “Demokritos”, Patriarchou Grigoriou E & 27 Neapoleos Str., 15310 Athens, Greece; (T.K.); (A.H.)
| | - Hanna Mazur-Marzec
- Division of Marine Biotechnology, University of Gdansk, Al. Marszałka Piłsudskiego 46, 81-378 Gdynia, Poland;
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Hammoud NA, Zervou SK, Kaloudis T, Christophoridis C, Paraskevopoulou A, Triantis TM, Slim K, Szpunar J, Fadel A, Lobinski R, Hiskia A. Investigation of the Occurrence of Cyanotoxins in Lake Karaoun (Lebanon) by Mass Spectrometry, Bioassays and Molecular Methods. Toxins (Basel) 2021; 13:toxins13100716. [PMID: 34679009 PMCID: PMC8540339 DOI: 10.3390/toxins13100716] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 10/03/2021] [Accepted: 10/05/2021] [Indexed: 11/29/2022] Open
Abstract
Lake Karaoun is the largest artificial lake in Lebanon and serves multiple purposes. Recently, intensive cyanobacterial blooms have been reported in the lake, raising safety and aesthetic concerns related to the presence of cyanotoxins and cyanobacterial taste and odor (T&O) compounds, respectively. Here, we communicate for the first time results from a recent investigation by LC-MS/MS covering multiple cyanotoxins (microcystins (MCs), anatoxin-a, cylindrospermopsin, nodularin) in water and fish collected between 2019 and 2020. Eleven MCs were identified reaching concentrations of 211 and 199 μg/L for MC-LR and MC-YR, respectively. Cylindrospermopsin, anatoxin-a and nodularin were not detected. The determination of the total MCs was also carried out by ELISA and Protein Phosphatase Inhibition Assay yielding comparable results. Molecular detection of cyanobacteria (16S rRNA) and biosynthetic genes of toxins were carried out by qPCR. Untargeted screening analysis by GC-MS showed the presence of T&O compounds, such as β-cyclocitral, β-ionone, nonanal and dimethylsulfides that contribute to unpleasant odors in water. The determination of volatile organic compounds (VOCs) showed the presence of anthropogenic pollutants, mostly dichloromethane and toluene. The findings are important to develop future monitoring schemes in order to assess the risks from cyanobacterial blooms with regard to the lake’s ecosystem and its uses.
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Affiliation(s)
- Noura Alice Hammoud
- National Council for Scientific Research (CNRS), P.O. Box 11-8281, Riad El Solh, Beirut 1107 2260, Lebanon; (N.A.H.); (K.S.); (A.F.)
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience and Nanotechnology, National Center for Scientific Research “Demokritos”, Patr. Grigoriou E’ & 27 Neapoleos Str., Agia Paraskevi, 15341 Athens, Greece; (S.-K.Z.); (T.K.); (C.C.); (A.P.); (T.M.T.)
- Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux, Université de Pau et des Pays de l’Adour, E2S UPPA, CNRS, IPREM UMR 5254, Hélioparc, 64053 Pau, France; (J.S.); (R.L.)
| | - Sevasti-Kiriaki Zervou
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience and Nanotechnology, National Center for Scientific Research “Demokritos”, Patr. Grigoriou E’ & 27 Neapoleos Str., Agia Paraskevi, 15341 Athens, Greece; (S.-K.Z.); (T.K.); (C.C.); (A.P.); (T.M.T.)
| | - Triantafyllos Kaloudis
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience and Nanotechnology, National Center for Scientific Research “Demokritos”, Patr. Grigoriou E’ & 27 Neapoleos Str., Agia Paraskevi, 15341 Athens, Greece; (S.-K.Z.); (T.K.); (C.C.); (A.P.); (T.M.T.)
- Department of Water Quality Control, Athens Water Supply and Sewerage Company (EYDAP SA), 156 Oropou Str., 11146 Athens, Greece
| | - Christophoros Christophoridis
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience and Nanotechnology, National Center for Scientific Research “Demokritos”, Patr. Grigoriou E’ & 27 Neapoleos Str., Agia Paraskevi, 15341 Athens, Greece; (S.-K.Z.); (T.K.); (C.C.); (A.P.); (T.M.T.)
| | - Aikaterina Paraskevopoulou
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience and Nanotechnology, National Center for Scientific Research “Demokritos”, Patr. Grigoriou E’ & 27 Neapoleos Str., Agia Paraskevi, 15341 Athens, Greece; (S.-K.Z.); (T.K.); (C.C.); (A.P.); (T.M.T.)
- Chemical Engineering Department, National Technical University, Iroon Politechniou 9, Zografou, 15780 Athens, Greece
| | - Theodoros M. Triantis
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience and Nanotechnology, National Center for Scientific Research “Demokritos”, Patr. Grigoriou E’ & 27 Neapoleos Str., Agia Paraskevi, 15341 Athens, Greece; (S.-K.Z.); (T.K.); (C.C.); (A.P.); (T.M.T.)
| | - Kamal Slim
- National Council for Scientific Research (CNRS), P.O. Box 11-8281, Riad El Solh, Beirut 1107 2260, Lebanon; (N.A.H.); (K.S.); (A.F.)
| | - Joanna Szpunar
- Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux, Université de Pau et des Pays de l’Adour, E2S UPPA, CNRS, IPREM UMR 5254, Hélioparc, 64053 Pau, France; (J.S.); (R.L.)
| | - Ali Fadel
- National Council for Scientific Research (CNRS), P.O. Box 11-8281, Riad El Solh, Beirut 1107 2260, Lebanon; (N.A.H.); (K.S.); (A.F.)
| | - Ryszard Lobinski
- Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux, Université de Pau et des Pays de l’Adour, E2S UPPA, CNRS, IPREM UMR 5254, Hélioparc, 64053 Pau, France; (J.S.); (R.L.)
- Chair of Analytical Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Anastasia Hiskia
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience and Nanotechnology, National Center for Scientific Research “Demokritos”, Patr. Grigoriou E’ & 27 Neapoleos Str., Agia Paraskevi, 15341 Athens, Greece; (S.-K.Z.); (T.K.); (C.C.); (A.P.); (T.M.T.)
- Correspondence:
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12
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Zervou SK, Moschandreou K, Paraskevopoulou A, Christophoridis C, Grigoriadou E, Kaloudis T, Triantis TM, Tsiaoussi V, Hiskia A. Cyanobacterial Toxins and Peptides in Lake Vegoritis, Greece. Toxins (Basel) 2021; 13:toxins13060394. [PMID: 34205997 PMCID: PMC8230288 DOI: 10.3390/toxins13060394] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/25/2021] [Accepted: 05/27/2021] [Indexed: 01/13/2023] Open
Abstract
Cyanotoxins (CTs) produced by cyanobacteria in surface freshwater are a major threat for public health and aquatic ecosystems. Cyanobacteria can also produce a wide variety of other understudied bioactive metabolites such as oligopeptides microginins (MGs), aeruginosins (AERs), aeruginosamides (AEGs) and anabaenopeptins (APs). This study reports on the co-occurrence of CTs and cyanopeptides (CPs) in Lake Vegoritis, Greece and presents their variant-specific profiles obtained during 3-years of monitoring (2018–2020). Fifteen CTs (cylindrospermopsin (CYN), anatoxin (ATX), nodularin (NOD), and 12 microcystins (MCs)) and ten CPs (3 APs, 4 MGs, 2 AERs and aeruginosamide (AEG A)) were targeted using an extended and validated LC-MS/MS protocol for the simultaneous determination of multi-class CTs and CPs. Results showed the presence of MCs (MC-LR, MC-RR, MC-YR, dmMC-LR, dmMC-RR, MC-HtyR, and MC-HilR) and CYN at concentrations of <1 μg/L, with MC-LR (79%) and CYN (71%) being the most frequently occurring. Anabaenopeptins B (AP B) and F (AP F) were detected in almost all samples and microginin T1 (MG T1) was the most abundant CP, reaching 47.0 μg/L. This is the first report of the co-occurrence of CTs and CPs in Lake Vegoritis, which is used for irrigation, fishing and recreational activities. The findings support the need for further investigations of the occurrence of CTs and the less studied cyanobacterial metabolites in lakes, to promote risk assessment with relevance to human exposure.
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Affiliation(s)
- Sevasti-Kiriaki Zervou
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research “Demokritos”, Patriarchou Grigoriou E & 27 Neapoleos Str, 15310 Agia Paraskevi, Athens, Greece; (S.-K.Z.); (A.P.); (C.C.); (T.K.); (T.M.T.)
| | - Kimon Moschandreou
- The Goulandris Natural History Museum—Greek Biotope/Wetland Centre, 14th km Thessaloniki-Mihaniona, Thermi P.O. Box 60394, 57001 Thessaloniki, Greece; (K.M.); (V.T.)
| | - Aikaterina Paraskevopoulou
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research “Demokritos”, Patriarchou Grigoriou E & 27 Neapoleos Str, 15310 Agia Paraskevi, Athens, Greece; (S.-K.Z.); (A.P.); (C.C.); (T.K.); (T.M.T.)
| | - Christophoros Christophoridis
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research “Demokritos”, Patriarchou Grigoriou E & 27 Neapoleos Str, 15310 Agia Paraskevi, Athens, Greece; (S.-K.Z.); (A.P.); (C.C.); (T.K.); (T.M.T.)
| | - Elpida Grigoriadou
- Water Resources Management Agency of West Macedonia, 50100 Kozani, Decentralized Administration of Epirus—Western Macedonia, Greece;
| | - Triantafyllos Kaloudis
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research “Demokritos”, Patriarchou Grigoriou E & 27 Neapoleos Str, 15310 Agia Paraskevi, Athens, Greece; (S.-K.Z.); (A.P.); (C.C.); (T.K.); (T.M.T.)
| | - Theodoros M. Triantis
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research “Demokritos”, Patriarchou Grigoriou E & 27 Neapoleos Str, 15310 Agia Paraskevi, Athens, Greece; (S.-K.Z.); (A.P.); (C.C.); (T.K.); (T.M.T.)
| | - Vasiliki Tsiaoussi
- The Goulandris Natural History Museum—Greek Biotope/Wetland Centre, 14th km Thessaloniki-Mihaniona, Thermi P.O. Box 60394, 57001 Thessaloniki, Greece; (K.M.); (V.T.)
| | - Anastasia Hiskia
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research “Demokritos”, Patriarchou Grigoriou E & 27 Neapoleos Str, 15310 Agia Paraskevi, Athens, Greece; (S.-K.Z.); (A.P.); (C.C.); (T.K.); (T.M.T.)
- Correspondence:
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13
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Antonopoulou M, Ioannidis N, Kaloudis T, Triantis TM, Hiskia A. Kinetic and mechanistic investigation of water taste and odor compound 2-isopropyl-3-methoxy pyrazine degradation using UV-A/Chlorine process. Sci Total Environ 2020; 732:138404. [PMID: 32474265 DOI: 10.1016/j.scitotenv.2020.138404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 03/31/2020] [Accepted: 03/31/2020] [Indexed: 06/11/2023]
Abstract
The present study was launched as a continuation of global efforts to tackle problems associated with two important aesthetic characteristics, taste and odor (T&O), of drinking water. The UV-A/Chlorine process, a promising advanced oxidation process (AOP), was evaluated for the first time for the removal of 2-isopropyl-3-methoxy pyrazine (IPMP), a widely reported compound in the literature that causes unpleasant taste and odor when present in water at or below the ng L-1 level. It was found that the studied process was efficient for the removal of IPMP in both ultrapure and drinking water. The initial chlorine dosage influenced significantly the degradation efficiency under initial neutral pH values. Degradation efficiency of IPMP was slightly inhibited by using drinking water as matrix. Scavenging experiments highlighted the significant role of various reactive species (e.g. HO, ClO, Cl, Cl2-) generated during the process that have not been studied comprehensively until now. In addition, the significant role of HO was further verified by Electron paramagnetic resonance spectroscopy (EPR) experiments. Overall, the formation of diverse radicals during the UV-A/Chlorine treatment enhanced the degradation of IPMP, promoting mainly the formation of hydroxy, hydroperoxy and dealkylated derivatives. In contrast, chlorinated by-products were only identified in traces.
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Affiliation(s)
- Maria Antonopoulou
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, NCSR "Demokritos", Patr. Gregoriou E & 27 Neapoleos Str, 15341 Agia Paraskevi, Athens, Greece.
| | - Nikolaos Ioannidis
- Laboratory of Molecular Magnetic and Bioinorganic Spectroscopy, Institute of Nanoscience & Nanotechnology, NCSR "Demokritos", Patr. Gregoriou E & 27 Neapoleos Str, 15341 Agia Paraskevi, Athens, Greece
| | - Triantafyllos Kaloudis
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, NCSR "Demokritos", Patr. Gregoriou E & 27 Neapoleos Str, 15341 Agia Paraskevi, Athens, Greece
| | - Theodoros M Triantis
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, NCSR "Demokritos", Patr. Gregoriou E & 27 Neapoleos Str, 15341 Agia Paraskevi, Athens, Greece
| | - Anastasia Hiskia
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, NCSR "Demokritos", Patr. Gregoriou E & 27 Neapoleos Str, 15341 Agia Paraskevi, Athens, Greece
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Zervou S–K, Kaloudis T, Hiskia A, Mazur-Marzec H. Fragmentation mass spectra dataset of linear cyanopeptides - microginins. Data Brief 2020; 31:105825. [PMID: 32671141 PMCID: PMC7341370 DOI: 10.1016/j.dib.2020.105825] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 05/28/2020] [Accepted: 06/02/2020] [Indexed: 11/28/2022] Open
Abstract
Microginins are the less common class of bioactive linear cyanobacterial peptides. Recently, an investigation for their presence in cyanobacteria from Greek freshwaters and strain cultures was carried out. The present dataset is related to the research article “New microginins from cyanobacteria of Greek freshwaters” [1]. Cyanobacterial biomass from bloom samples and cultured strains were extracted with aqueous methanol. Extracts were analysed by liquid chromatography coupled to hybrid triple quadrupole/linear ion trap mass spectrometer (LC-qTRAP MS/MS) in information dependent acquisition (IDA) mode. Enhanced ion product (EIP) mode was applied for the collection of ion fragmentation spectra. Identification of microginins was based on the characteristic fragment ions of the unique microginin amino acid 3-amino-2-hydroxy-decanoic acid (Ahda) and its modified forms. The analysis of fragmentation spectra revealed 51 microginin structures, including 36 new variants. This article provides the dataset of fragmentation mass spectra of the microginins detected in cyanobacteria from Greek freshwaters. As this class of cyanopeptides is produced by cyanobacteria from different geographical regions, the aim of this dataset is to enable the identification of microginins in future studies and therefore to contribute to a better evaluation of their presence in freshwater bodies worldwide.
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Affiliation(s)
- Sevasti – Kiriaki Zervou
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research “Demokritos”, Patriarchou Grigoriou E & 27 Neapoleos Str, 15310 Agia Paraskevi, Athens, Greece
- Corresponding author:
| | - Triantafyllos Kaloudis
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research “Demokritos”, Patriarchou Grigoriou E & 27 Neapoleos Str, 15310 Agia Paraskevi, Athens, Greece
| | - Anastasia Hiskia
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research “Demokritos”, Patriarchou Grigoriou E & 27 Neapoleos Str, 15310 Agia Paraskevi, Athens, Greece
| | - Hanna Mazur-Marzec
- Division of Marine Biotechnology, University of Gdansk, Al. Marszałka Piłsudskiego 46, 81-378 Gdynia, Poland
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Zervou SK, Gkelis S, Kaloudis T, Hiskia A, Mazur-Marzec H. New microginins from cyanobacteria of Greek freshwaters. Chemosphere 2020; 248:125961. [PMID: 32059332 DOI: 10.1016/j.chemosphere.2020.125961] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 12/23/2019] [Accepted: 01/18/2020] [Indexed: 06/10/2023]
Abstract
Cyanobacteria can form extensive blooms in water with concurrent production and release of a large number of chemically diverse and bioactive metabolites, including hazardous toxins. Significant number of the metabolites belongs to non-ribosomal peptides, with unique residues, unusual structures and great potential for biotechnological application. The biosynthetic pathways of the peptides generate tens of variants, but only part of them has been identified. Microginins are an understudied class of cyanobacterial linear peptides with a characteristic decanoic acid derivative amino acid residue in their structure. In this study, cyanobacterial blooms and isolated strains from Greek lakes were analyzed for the presence of microginins by liquid chromatography coupled to hybrid triple quadrupole/linear ion trap mass spectrometer (LC-qTRAP MS/MS). Microginin structures were elucidated based on the obtained fragmentation spectra. A large number of microginins occurred in blooms of Greek freshwaters and the most frequently detected were Microginin FR1 (70% of samples), Microginin T1 (52%), Microginin 565B (52%), Microginin T2 (43%), and Microginin 565A (43%). Additionally, nine cyanobacterial strains i.e. Nostoc oryzae, Synechococcus sp., Microcystis aeruginosa, Microcystis viridis, and five Microcystis sp., were found to produce microginins. Thirty-six new microginin structures were characterized out of fifty-one totally detected variants. This is the first time that such a diversity of microginins is reported to be present in water bodies. Results clearly demonstrate the great metabolomic potential of cyanobacteria that inhabit Greek freshwaters and significantly expand the knowledge of cyanobacterial secondary metabolites with regards to the class of microginins.
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Affiliation(s)
- Sevasti-Kiriaki Zervou
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou E & 27 Neapoleos Str, 15310, Agia Paraskevi, Athens, Greece.
| | - Spyros Gkelis
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, GR-541 24, Thessaloniki, Greece
| | - Triantafyllos Kaloudis
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou E & 27 Neapoleos Str, 15310, Agia Paraskevi, Athens, Greece
| | - Anastasia Hiskia
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou E & 27 Neapoleos Str, 15310, Agia Paraskevi, Athens, Greece
| | - Hanna Mazur-Marzec
- Division of Marine Biotechnology, University of Gdansk, Al. Marszałka Piłsudskiego 46, 81-378, Gdynia, Poland
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16
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Konstantinou D, Voultsiadou E, Panteris E, Zervou SK, Hiskia A, Gkelis S. Leptothoe, a new genus of marine cyanobacteria (Synechococcales) and three new species associated with sponges from the Aegean Sea. J Phycol 2019; 55:882-897. [PMID: 31001838 DOI: 10.1111/jpy.12866] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 03/27/2019] [Indexed: 06/09/2023]
Abstract
Cyanobacterial diversity associated with sponges remains underestimated, though it is of great scientific interest in order to understand the ecology and evolutionary history of the symbiotic relationships between the two groups. Of the filamentous cyanobacteria, the genus Leptolyngbya is the most frequently found in association with sponges as well as the largest and obviously polyphyletic group. In this study, five Leptolyngbya-like sponge-associated isolates were investigated using a combination of molecular, chemical, and morphological approach and revealed a novel marine genus herein designated Leptothoe gen. nov. In addition, three new species of Leptothoe, Le. sithoniana, Le. kymatousa, and Le. spongobia, are described based on a suite of distinct characters compared to other marine Leptolyngbyaceae species/strains. The three new species, hosted by four sponge species, showed different degrees of host specificity. Leptothoe sithoniana and Le. kymatousa hosted by the sponges Petrosia ficiformis and Chondrilla nucula, respectively, seem to be more specialized than Le. spongobia, which was hosted by the sponges Dysidea avara and Acanthella acuta. All three species contained nitrogen-fixing genes and may contribute to the nitrogen budget of sponges. Leptothoe spongobia TAU-MAC 1115 isolated from Acanthella acuta was shown to produce microcystin-RR indicating that microcystin production among marine cyanobacteria could be more widespread than previously determined.
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Affiliation(s)
- Despoina Konstantinou
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, GR-541 24, Greece
- Department of Zoology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, GR-541 124, Greece
| | - Eleni Voultsiadou
- Department of Zoology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, GR-541 124, Greece
| | - Emmanuel Panteris
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, GR-541 24, Greece
| | - Sevasti-Kiriaki Zervou
- Institute of Nanoscience and Nanotechnology, NCSR "Demokritos", Athens, GR-153 10, Greece
| | - Anastasia Hiskia
- Institute of Nanoscience and Nanotechnology, NCSR "Demokritos", Athens, GR-153 10, Greece
| | - Spyros Gkelis
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, GR-541 24, Greece
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17
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Gkelis S, Panou M, Konstantinou D, Apostolidis P, Kasampali A, Papadimitriou S, Kati D, Di Lorenzo GM, Ioakeim S, Zervou SK, Christophoridis C, Triantis TM, Kaloudis T, Hiskia A, Arsenakis M. Diversity, Cyanotoxin Production, and Bioactivities of Cyanobacteria Isolated from Freshwaters of Greece. Toxins (Basel) 2019; 11:toxins11080436. [PMID: 31349572 PMCID: PMC6723990 DOI: 10.3390/toxins11080436] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 07/12/2019] [Accepted: 07/23/2019] [Indexed: 12/28/2022] Open
Abstract
Cyanobacteria are a diverse group of photosynthetic Gram-negative bacteria that produce an array of secondary compounds with selective bioactivity against a broad spectrum of organisms and cell lines. In this study, 29 strains isolated from freshwaters in Greece were classified using a polyphasic approach and assigned to Chroococcales, Synechococcales, and Nostocales, representing 11 genera and 17 taxa. There were good agreements between 16S ribosomal RNA (rRNA)-cpcBA-internal genetic spacer (IGS) characterization and morphological features, except for the Jaaginema-Limnothrix group which appears intermixed and needs further elucidation. Methanol extracts of the strains were analyzed for cyanotoxin production and tested against pathogenic bacteria species and several cancer cell lines. We report for the first time a Nostoc oryzae strain isolated from rice fields capable of producing microcystins (MCs) and a Chlorogloeopsis fritschii strain isolated from the plankton of a lake, suggesting that this species may also occur in freshwater temperate habitats. Strains with very high or identical 16S rRNA gene sequences displayed different antibacterial and cytotoxic activities. Extracts from Synechococcus cf. nidulans showed the most potent antibacterial activity against Staphylococcus aureus, whereas Jaaginema sp. strains exhibited potent cytotoxic activities against human colorectal adenocarcinoma and hepatocellular carcinoma cells. Jaaginema Thessaloniki Aristotle University Microalgae and Cyanobacteria (TAU-MAC) 0110 and 0210 strains caused pronounced changes in the actin network and triggered the formation of numerous lipid droplets in hepatocellular carcinoma and green monkey kidney cells, suggesting oxidative stress and/or mitochondrial damage leading to apoptosis.
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Affiliation(s)
- Spyros Gkelis
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece.
| | - Manthos Panou
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
| | - Despoina Konstantinou
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
| | - Panagiotis Apostolidis
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
| | - Antonia Kasampali
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
| | - Sofia Papadimitriou
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
| | - Dominiki Kati
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
| | - Giorgia Maria Di Lorenzo
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
| | - Stamatia Ioakeim
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
| | - Sevasti-Kiriaki Zervou
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou & Neapoleos, Agia Paraskevi, 15341 Athens, Greece
| | - Christophoros Christophoridis
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou & Neapoleos, Agia Paraskevi, 15341 Athens, Greece
| | - Theodoros M Triantis
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou & Neapoleos, Agia Paraskevi, 15341 Athens, Greece
| | - Triantafyllos Kaloudis
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou & Neapoleos, Agia Paraskevi, 15341 Athens, Greece
| | - Anastasia Hiskia
- Laboratory of Photo-Catalytic Processes and Environmental Chemistry, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou & Neapoleos, Agia Paraskevi, 15341 Athens, Greece
| | - Minas Arsenakis
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
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18
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Manolidi K, Triantis TM, Kaloudis T, Hiskia A. Neurotoxin BMAA and its isomeric amino acids in cyanobacteria and cyanobacteria-based food supplements. J Hazard Mater 2019; 365:346-365. [PMID: 30448548 DOI: 10.1016/j.jhazmat.2018.10.084] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 10/26/2018] [Accepted: 10/27/2018] [Indexed: 06/09/2023]
Abstract
Cyanobacteria are photosynthetic microorganisms distributed globally in aquatic and terrestrial environments. They are also industrially cultivated to be used as dietary supplements, as they have a high nutritional value; however, they are also known to produce a wide range of toxic secondary metabolites, called cyanotoxins. BMAA (β-methylamino-l-alanine) and its most common structural isomers, DAB (2,4-diaminobutyric acid) and AEG (N-2-aminoethylglycine) produced by cyanobacteria, are non-proteinogenic amino acids that have been associated with neurodegenerative diseases. A possible route of exposure to those amino acids is through consumption of food supplements based on cyanobacteria. The review critically discusses existing reports regarding the occurrence of BMAA, DAB and AEG in cyanobacteria and cyanobacteria-based food supplements. It is shown that inconsistencies in reported results could be attributed to performance of different methods of extraction and analysis applied and in ambiguities regarding determination of soluble and bound fractions of the compounds. The critical aspect of this review aims to grow awareness of human intake of neurotoxic amino acids, while results presented in literature concerning dietary supplements aim to promote further research, quality control as well as development of guidelines for cyanotoxins in food products.
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Affiliation(s)
- Korina Manolidi
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "DEMOKRITOS", Patriarchou Grigoriou E' & Neapoleos 27, 15341, Athens, Greece; National and Kapodistrian University of Athens, Faculty of Chemistry, 15784, Panepistimiopolis, Athens, Greece.
| | - Theodoros M Triantis
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "DEMOKRITOS", Patriarchou Grigoriou E' & Neapoleos 27, 15341, Athens, Greece.
| | - Triantafyllos Kaloudis
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "DEMOKRITOS", Patriarchou Grigoriou E' & Neapoleos 27, 15341, Athens, Greece; Water Quality Control Department, Athens Water Supply and Sewerage Company - EYDAP SA, Athens, Greece.
| | - Anastasia Hiskia
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "DEMOKRITOS", Patriarchou Grigoriou E' & Neapoleos 27, 15341, Athens, Greece.
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Douvas AM, Tsikritzis D, Tselios C, Haider A, Mougharbel AS, Kortz U, Hiskia A, Coutsolelos AG, Palilis LC, Vasilopoulou M, Kennou S, Argitis P. Multi-electron reduction of Wells-Dawson polyoxometalate films onto metallic, semiconducting and dielectric substrates. Phys Chem Chem Phys 2018; 21:427-437. [PMID: 30534673 DOI: 10.1039/c8cp07101b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The investigation of conditions allowing multi-electron reduction and reoxidation of polyoxometalate (POM) films onto solid substrates is considered an issue of critical importance for their successful incorporation in electronic devices, different types of sensors and catalytic systems. In the present paper, the rich multi-electron redox chemistry of films of Wells-Dawson ammonium salts, namely (NH4)6P2Mo18O62 and (NH4)6P2W18O62, on top of metallic (Al), semiconducting (ITO) and dielectric (SiO2) substrates under ambient conditions is investigated. The respective Keggin heteropolyacids, H3PMo12O40 and H3PW12O40, are also investigated for comparison. On Al substrates, the Wells-Dawson ammonium salts are found to be significantly more reduced (4-6e-) compared to the respective Keggin heteropolyacids (∼2e-), in accordance with their deeper lying lowest unoccupied molecular orbital (LUMO) level. Subsequent thermal treatment in air results in reoxidation of the initially highly reduced POM films. Similar behavior is found on ITO substrates, but in initially less reduced (2-4e-) Wells-Dawson POM films. On the other hand, on SiO2 substrates, the thermal reduction of (NH4)6P2Mo18O62 film is observed and attributed to the thermal oxidation of ammonium counterions by [P2Mo18O62]6- anions. Overall, the multi-electron reduction of Wells-Dawson ammonium salts onto metallic and semiconducting substrates (Al, ITO) is determined by the relative position of the LUMO level of POMs in relation to the Fermi level of the substrate (i.e. substrate work function) and affected in a synergistic way by the presence of ammonium counterions. In contrast, on dielectric substrates (SiO2) the reduction of Wells-Dawson POMs ((NH4)6P2Mo18O62) is attributed only to the oxidation of ammonium counterions.
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Affiliation(s)
- Antonios M Douvas
- Institute of Nanoscience and Nanotechnology (INN), National Center for Scientific Research (NCSR) "Demokritos", 15341 Agia Paraskevi, Attica, Greece.
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20
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Christophoridis C, Zervou SK, Manolidi K, Katsiapi M, Moustaka-Gouni M, Kaloudis T, Triantis TM, Hiskia A. Occurrence and diversity of cyanotoxins in Greek lakes. Sci Rep 2018; 8:17877. [PMID: 30552354 PMCID: PMC6294760 DOI: 10.1038/s41598-018-35428-x] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 10/30/2018] [Indexed: 02/07/2023] Open
Abstract
Toxic cyanobacteria occur in Greek surface water bodies. However, studies on the occurrence of cyanotoxins (CTs) are often limited to mainly microcystins (MCs), with use of screening methods, such as ELISA, that are not conclusive of the chemical structure of the CT variants and can be subject to false positive results. A multi-lake survey in Greece (14 lakes) was conducted in water and biomass, targeted to a wide range of multi-class CTs including MCs, nodularin-R (NOD), cylindrospermopsin (CYN), anatoxin-a (ANA-a) and saxitoxins (STXs), using multi-class/variant LC-MS/MS analytical workflows, achieving sensitive detection, definitive identification and accurate quantitation. A wide variety of CTs (CYN, ANA-a, STX, neoSTX, dmMC-RR, MC-RR, MC-YR, MC-HtyR, dm3MC-LR, MC-LR, MC-HilR, MC-WR, MC-LA, MC-LY, MC-LW and MC-LF), were detected, with MCs being the most commonly occurring. In biomass, MC-RR was the most abundant toxin, reaching 754 ng mg−1 dw, followed by MC-LR (458 ng mg−1 dw). CYN and ANA-a were detected for the first time in the biomass of Greek lakes at low concentrations and STXs in lakes Trichonis, Vistonis and Petron. The abundance and diversity of CTs were also evaluated in relation to recreational health risks, in a case study with a proven history of MCs (Lake Kastoria).
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Affiliation(s)
- Christophoros Christophoridis
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "Demokritos", Patr. Grigoriou E' & Neapoleos 27, 15341, Athens, Greece
| | - Sevasti-Kiriaki Zervou
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "Demokritos", Patr. Grigoriou E' & Neapoleos 27, 15341, Athens, Greece
| | - Korina Manolidi
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "Demokritos", Patr. Grigoriou E' & Neapoleos 27, 15341, Athens, Greece
| | - Matina Katsiapi
- School of Biology, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Maria Moustaka-Gouni
- School of Biology, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Triantafyllos Kaloudis
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "Demokritos", Patr. Grigoriou E' & Neapoleos 27, 15341, Athens, Greece.,Water Quality Control Department, Athens Water Supply and Sewerage Company - EYDAP SA, Athens, Greece
| | - Theodoros M Triantis
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "Demokritos", Patr. Grigoriou E' & Neapoleos 27, 15341, Athens, Greece
| | - Anastasia Hiskia
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "Demokritos", Patr. Grigoriou E' & Neapoleos 27, 15341, Athens, Greece.
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21
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Panou M, Zervou SK, Kaloudis T, Hiskia A, Gkelis S. A Greek Cylindrospermopsis raciborskii strain: Missing link in tropic invader's phylogeography tale. Harmful Algae 2018; 80:96-106. [PMID: 30502817 DOI: 10.1016/j.hal.2018.10.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 10/02/2018] [Accepted: 10/07/2018] [Indexed: 06/09/2023]
Abstract
The cyanobacterium Cylindrospermopsis raciborskii represents a challenge for researchers and it is extensively studied for its toxicity and invasive behaviour, which is presumably enhanced by global warming. Biogeography studies indicate a tropical origin for this species, with Greece considered as the expansion route of C. raciborskii in Europe. The widening of its geographic distribution and the isolation of strains showing high optimum growth temperature underline its ecological heterogeneity, suggesting the existence of different ecotypes. The dominance of species like C. raciborskii along with their ecotoxicology and potential human risk related problems, render the establishment of a clear phylogeography model essential. In the context of the present study, the characterization of Cylindrospermopsis raciborskii TAU-MAC 1414 strain, isolated from Lake Karla, with respect to its phylogeography and toxic potential, is attempted. Our research provides new insights on the origin of C. raciborskii in the Mediterranean region; C. raciborskii expanded in Mediterranean from North America, whilst the rest of the European strains may originate from Asia and Australia. Microcystin synthetase genes, phylogenetic closely related with Microcystis strains, were also present in C. raciborskii TAU-MAC 1414. We were unable to unambiguously confirm the presence of MC-LR, using LC-MS/MS. Our results are shedding light on the expansion and distribution of C. raciborskii, whilst they pose further questions on the toxic capacity of this species.
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Affiliation(s)
- Manthos Panou
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
| | - Sevasti-Kiriaki Zervou
- Laboratory of Catalytic-Photocatalytic Processes and Environmental Analysis, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou & Neapoleos, 15310 Agia Paraskevi, Athens, Greece
| | - Triantafyllos Kaloudis
- Water Quality Department, Athens Water Supply and Sewerage Company (EYDAP SA), 156 Oropou Str., 11146 Athens, Greece
| | - Anastasia Hiskia
- Laboratory of Catalytic-Photocatalytic Processes and Environmental Analysis, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou & Neapoleos, 15310 Agia Paraskevi, Athens, Greece
| | - Spyros Gkelis
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece.
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22
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Minasyan A, Christophoridis C, Wilson AE, Zervou SK, Kaloudis T, Hiskia A. Diversity of cyanobacteria and the presence of cyanotoxins in the epilimnion of Lake Yerevan (Armenia). Toxicon 2018; 150:28-38. [DOI: 10.1016/j.toxicon.2018.04.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 04/19/2018] [Accepted: 04/25/2018] [Indexed: 11/16/2022]
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Mantzouki E, Lürling M, Fastner J, de Senerpont Domis L, Wilk-Woźniak E, Koreivienė J, Seelen L, Teurlincx S, Verstijnen Y, Krztoń W, Walusiak E, Karosienė J, Kasperovičienė J, Savadova K, Vitonytė I, Cillero-Castro C, Budzyńska A, Goldyn R, Kozak A, Rosińska J, Szeląg-Wasielewska E, Domek P, Jakubowska-Krepska N, Kwasizur K, Messyasz B, Pełechaty A, Pełechaty M, Kokocinski M, García-Murcia A, Real M, Romans E, Noguero-Ribes J, Duque DP, Fernández-Morán E, Karakaya N, Häggqvist K, Demir N, Beklioğlu M, Filiz N, Levi EE, Iskin U, Bezirci G, Tavşanoğlu ÜN, Özhan K, Gkelis S, Panou M, Fakioglu Ö, Avagianos C, Kaloudis T, Çelik K, Yilmaz M, Marcé R, Catalán N, Bravo AG, Buck M, Colom-Montero W, Mustonen K, Pierson D, Yang Y, Raposeiro PM, Gonçalves V, Antoniou MG, Tsiarta N, McCarthy V, Perello VC, Feldmann T, Laas A, Panksep K, Tuvikene L, Gagala I, Mankiewicz-Boczek J, Yağcı MA, Çınar Ş, Çapkın K, Yağcı A, Cesur M, Bilgin F, Bulut C, Uysal R, Obertegger U, Boscaini A, Flaim G, Salmaso N, Cerasino L, Richardson J, Visser PM, Verspagen JMH, Karan T, Soylu EN, Maraşlıoğlu F, Napiórkowska-Krzebietke A, Ochocka A, Pasztaleniec A, Antão-Geraldes AM, Vasconcelos V, Morais J, Vale M, Köker L, Akçaalan R, Albay M, Špoljarić Maronić D, Stević F, Žuna Pfeiffer T, Fonvielle J, Straile D, Rothhaupt KO, Hansson LA, Urrutia-Cordero P, Bláha L, Geriš R, Fránková M, Koçer MAT, Alp MT, Remec-Rekar S, Elersek T, Triantis T, Zervou SK, Hiskia A, Haande S, Skjelbred B, Madrecka B, Nemova H, Drastichova I, Chomova L, Edwards C, Sevindik TO, Tunca H, Önem B, Aleksovski B, Krstić S, Vucelić IB, Nawrocka L, Salmi P, Machado-Vieira D, de Oliveira AG, Delgado-Martín J, García D, Cereijo JL, Gomà J, Trapote MC, Vegas-Vilarrúbia T, Obrador B, Grabowska M, Karpowicz M, Chmura D, Úbeda B, Gálvez JÁ, Özen A, Christoffersen KS, Warming TP, Kobos J, Mazur-Marzec H, Pérez-Martínez C, Ramos-Rodríguez E, Arvola L, Alcaraz-Párraga P, Toporowska M, Pawlik-Skowronska B, Niedźwiecki M, Pęczuła W, Leira M, Hernández A, Moreno-Ostos E, Blanco JM, Rodríguez V, Montes-Pérez JJ, Palomino RL, Rodríguez-Pérez E, Carballeira R, Camacho A, Picazo A, Rochera C, Santamans AC, Ferriol C, Romo S, Soria JM, Dunalska J, Sieńska J, Szymański D, Kruk M, Kostrzewska-Szlakowska I, Jasser I, Žutinić P, Gligora Udovič M, Plenković-Moraj A, Frąk M, Bańkowska-Sobczak A, Wasilewicz M, Özkan K, Maliaka V, Kangro K, Grossart HP, Paerl HW, Carey CC, Ibelings BW. Temperature Effects Explain Continental Scale Distribution of Cyanobacterial Toxins. Toxins (Basel) 2018; 10:toxins10040156. [PMID: 29652856 PMCID: PMC5923322 DOI: 10.3390/toxins10040156] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 03/27/2018] [Accepted: 03/29/2018] [Indexed: 11/29/2022] Open
Abstract
Insight into how environmental change determines the production and distribution of cyanobacterial toxins is necessary for risk assessment. Management guidelines currently focus on hepatotoxins (microcystins). Increasing attention is given to other classes, such as neurotoxins (e.g., anatoxin-a) and cytotoxins (e.g., cylindrospermopsin) due to their potency. Most studies examine the relationship between individual toxin variants and environmental factors, such as nutrients, temperature and light. In summer 2015, we collected samples across Europe to investigate the effect of nutrient and temperature gradients on the variability of toxin production at a continental scale. Direct and indirect effects of temperature were the main drivers of the spatial distribution in the toxins produced by the cyanobacterial community, the toxin concentrations and toxin quota. Generalized linear models showed that a Toxin Diversity Index (TDI) increased with latitude, while it decreased with water stability. Increases in TDI were explained through a significant increase in toxin variants such as MC-YR, anatoxin and cylindrospermopsin, accompanied by a decreasing presence of MC-LR. While global warming continues, the direct and indirect effects of increased lake temperatures will drive changes in the distribution of cyanobacterial toxins in Europe, potentially promoting selection of a few highly toxic species or strains.
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Affiliation(s)
- Evanthia Mantzouki
- Department F.-A. Forel for Environmental and Aquatic Sciences, University of Geneva, 1205 Geneva, Switzerland.
| | - Miquel Lürling
- Department of Environmental Sciences, Wageningen University & Research, 6700 Wageningen, The Netherlands.
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), 6700 Wageningen, The Netherlands.
| | - Jutta Fastner
- German Environment Agency, Unit Drinking Water Resources and Water Treatment, Corrensplatz 1, 14195 Berlin, Germany.
| | - Lisette de Senerpont Domis
- Department of Environmental Sciences, Wageningen University & Research, 6700 Wageningen, The Netherlands.
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), 6700 Wageningen, The Netherlands.
| | - Elżbieta Wilk-Woźniak
- Institute of Nature Conservation, Polish Academy of Sciences, 31-120 Krakow, Poland.
| | - Judita Koreivienė
- Institute of Botany, Nature Research Centre, Vilnius 08412, Lithuania.
| | - Laura Seelen
- Department of Environmental Sciences, Wageningen University & Research, 6700 Wageningen, The Netherlands.
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), 6700 Wageningen, The Netherlands.
| | - Sven Teurlincx
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), 6700 Wageningen, The Netherlands.
| | - Yvon Verstijnen
- Department of Environmental Sciences, Wageningen University & Research, 6700 Wageningen, The Netherlands.
| | - Wojciech Krztoń
- Institute of Nature Conservation, Polish Academy of Sciences, 31-120 Krakow, Poland.
| | - Edward Walusiak
- Institute of Nature Conservation, Polish Academy of Sciences, 31-120 Krakow, Poland.
| | - Jūratė Karosienė
- Institute of Botany, Nature Research Centre, Vilnius 08412, Lithuania.
| | | | - Ksenija Savadova
- Institute of Botany, Nature Research Centre, Vilnius 08412, Lithuania.
| | - Irma Vitonytė
- Institute of Botany, Nature Research Centre, Vilnius 08412, Lithuania.
| | | | - Agnieszka Budzyńska
- Department ofWater Protection, Adam Mickiewicz University, 61614 Poznan, Poland.
| | - Ryszard Goldyn
- Department ofWater Protection, Adam Mickiewicz University, 61614 Poznan, Poland.
| | - Anna Kozak
- Department ofWater Protection, Adam Mickiewicz University, 61614 Poznan, Poland.
| | - Joanna Rosińska
- Department ofWater Protection, Adam Mickiewicz University, 61614 Poznan, Poland.
| | | | - Piotr Domek
- Department ofWater Protection, Adam Mickiewicz University, 61614 Poznan, Poland.
| | | | - Kinga Kwasizur
- Department of Hydrobiology, Adam Mickiewicz University, 61614 Poznan, Poland.
| | - Beata Messyasz
- Department of Hydrobiology, Adam Mickiewicz University, 61614 Poznan, Poland.
| | | | - Mariusz Pełechaty
- Department of Hydrobiology, Adam Mickiewicz University, 61614 Poznan, Poland.
| | - Mikolaj Kokocinski
- Department of Hydrobiology, Adam Mickiewicz University, 61614 Poznan, Poland.
| | - Ana García-Murcia
- Department of Limnology and Water Quality, AECOM U.R.S, 08036 Barcelona, Spain.
| | - Monserrat Real
- Department of Limnology and Water Quality, AECOM U.R.S, 08036 Barcelona, Spain.
| | - Elvira Romans
- Department of Limnology and Water Quality, AECOM U.R.S, 08036 Barcelona, Spain.
| | - Jordi Noguero-Ribes
- Department of Limnology and Water Quality, AECOM U.R.S, 08036 Barcelona, Spain.
| | - David Parreño Duque
- Department of Limnology and Water Quality, AECOM U.R.S, 08036 Barcelona, Spain.
| | | | - Nusret Karakaya
- Department of Environmental Engineering, Abant Izzet Baysal University, 14280 Bolu, Turkey.
| | - Kerstin Häggqvist
- Department of Science and Engineering, Åbo Akademi University, 20520 Åbo, Finland.
| | - Nilsun Demir
- Department of Fisheries and Aquaculture, Ankara University, 6100 Ankara, Turkey.
| | - Meryem Beklioğlu
- Department of biology, Middle East Technical University, 6800 Ankara, Turkey.
| | - Nur Filiz
- Department of biology, Middle East Technical University, 6800 Ankara, Turkey.
| | - Eti E. Levi
- Department of biology, Middle East Technical University, 6800 Ankara, Turkey.
| | - Uğur Iskin
- Department of biology, Middle East Technical University, 6800 Ankara, Turkey.
| | - Gizem Bezirci
- Department of biology, Middle East Technical University, 6800 Ankara, Turkey.
| | | | - Koray Özhan
- Institute of Marine Sciences, Department of Oceanography, Middle East Technical University, 06800 Ankara, Turkey.
| | - Spyros Gkelis
- Department of Botany, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
| | - Manthos Panou
- Department of Botany, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
| | - Özden Fakioglu
- Department of Basic Science, Ataturk University, 25240 Erzurum, Turkey.
| | - Christos Avagianos
- Water Quality Department, Athens Water Supply and Sewerage Company, 11146 Athens, Greece.
| | - Triantafyllos Kaloudis
- Water Quality Department, Athens Water Supply and Sewerage Company, 11146 Athens, Greece.
| | - Kemal Çelik
- Department of Biology, Balikesir University, 10145 Balikesir, Turkey.
| | - Mete Yilmaz
- Department of Bioengineering, Bursa Technical University, 16310 Bursa, Turkey.
| | - Rafael Marcé
- Catalan Institute for Water Research (ICRA), 17003 Girona, Spain.
| | - Nuria Catalán
- Catalan Institute for Water Research (ICRA), 17003 Girona, Spain.
- Department of Ecology and Genetics, Limnology, Uppsala University, 75236 Uppsala, Sweden.
| | - Andrea G. Bravo
- Department of Ecology and Genetics, Limnology, Uppsala University, 75236 Uppsala, Sweden.
| | - Moritz Buck
- Department of Ecology and Genetics, Limnology, Uppsala University, 75236 Uppsala, Sweden.
| | - William Colom-Montero
- Department of Ecology and Genetics, Erken Laboratory, Uppsala University, 76173 Norrtalje, Sweden.
| | - Kristiina Mustonen
- Department of Ecology and Genetics, Erken Laboratory, Uppsala University, 76173 Norrtalje, Sweden.
| | - Don Pierson
- Department of Ecology and Genetics, Erken Laboratory, Uppsala University, 76173 Norrtalje, Sweden.
| | - Yang Yang
- Department of Ecology and Genetics, Erken Laboratory, Uppsala University, 76173 Norrtalje, Sweden.
| | - Pedro M. Raposeiro
- Research Center in Biodiversity and Genetic Resources (CIBIO-Azores), InBIO Associated Laboratory, Faculty of Sciences and Technology, University of the Azores, 9501-801 Ponta Delgada, Portugal.
| | - Vítor Gonçalves
- Research Center in Biodiversity and Genetic Resources (CIBIO-Azores), InBIO Associated Laboratory, Faculty of Sciences and Technology, University of the Azores, 9501-801 Ponta Delgada, Portugal.
| | - Maria G. Antoniou
- Department of Environmental Science and Technology, Cyprus University of Technology, 3036 Lemesos, Cyprus.
| | - Nikoletta Tsiarta
- Department of Environmental Science and Technology, Cyprus University of Technology, 3036 Lemesos, Cyprus.
| | - Valerie McCarthy
- Centre for Freshwater and Environmental Studies, Dundalk Institute of Technology, A91 K584 Dundalk, Ireland.
| | - Victor C. Perello
- Centre for Freshwater and Environmental Studies, Dundalk Institute of Technology, A91 K584 Dundalk, Ireland.
| | - Tõnu Feldmann
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, 51014 Tartu, Estonia.
| | - Alo Laas
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, 51014 Tartu, Estonia.
| | - Kristel Panksep
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, 51014 Tartu, Estonia.
| | - Lea Tuvikene
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, 51014 Tartu, Estonia.
| | - Ilona Gagala
- European Regional Centre for Ecohydrology of the Polish Academy of Sciences, 90364 Lodz, Poland.
| | - Joana Mankiewicz-Boczek
- European Regional Centre for Ecohydrology of the Polish Academy of Sciences, 90364 Lodz, Poland.
| | - Meral Apaydın Yağcı
- Republic of Turkey Ministry of Food Agriculture, Fisheries Research Institute, 32500 Eğirdir, Isparta, Turkey.
| | - Şakir Çınar
- Republic of Turkey Ministry of Food Agriculture, Fisheries Research Institute, 32500 Eğirdir, Isparta, Turkey.
| | - Kadir Çapkın
- Republic of Turkey Ministry of Food Agriculture, Fisheries Research Institute, 32500 Eğirdir, Isparta, Turkey.
| | - Abdulkadir Yağcı
- Republic of Turkey Ministry of Food Agriculture, Fisheries Research Institute, 32500 Eğirdir, Isparta, Turkey.
| | - Mehmet Cesur
- Republic of Turkey Ministry of Food Agriculture, Fisheries Research Institute, 32500 Eğirdir, Isparta, Turkey.
| | - Fuat Bilgin
- Republic of Turkey Ministry of Food Agriculture, Fisheries Research Institute, 32500 Eğirdir, Isparta, Turkey.
| | - Cafer Bulut
- Republic of Turkey Ministry of Food Agriculture, Fisheries Research Institute, 32500 Eğirdir, Isparta, Turkey.
| | - Rahmi Uysal
- Republic of Turkey Ministry of Food Agriculture, Fisheries Research Institute, 32500 Eğirdir, Isparta, Turkey.
| | - Ulrike Obertegger
- Department of Sustainable Ecosystems and Bioresources, Fondazione Edmund Mach, 38010 San Michele all’Adige, Italy.
| | - Adriano Boscaini
- Department of Sustainable Ecosystems and Bioresources, Fondazione Edmund Mach, 38010 San Michele all’Adige, Italy.
| | - Giovanna Flaim
- Department of Sustainable Ecosystems and Bioresources, Fondazione Edmund Mach, 38010 San Michele all’Adige, Italy.
| | - Nico Salmaso
- Department of Sustainable Ecosystems and Bioresources, Fondazione Edmund Mach, 38010 San Michele all’Adige, Italy.
| | - Leonardo Cerasino
- Department of Sustainable Ecosystems and Bioresources, Fondazione Edmund Mach, 38010 San Michele all’Adige, Italy.
| | - Jessica Richardson
- Department of Biological and Environmental Sciences, University of Stirling, Stirling FK9 4LA, UK.
| | - Petra M. Visser
- Department of Freshwater and Marine Ecology, University of Amsterdam, 1090 GE Amsterdam, The Netherlands.
| | - Jolanda M. H. Verspagen
- Department of Freshwater and Marine Ecology, University of Amsterdam, 1090 GE Amsterdam, The Netherlands.
| | - Tünay Karan
- Department of Molecular Biology and Genetics, Gaziosmanpasa University, 60250 Merkez, Turkey.
| | | | | | | | - Agnieszka Ochocka
- Department of Freshwater Protection, Institute of Environmental Protection- National Research Institute, 01-692 Warsaw, Poland.
| | - Agnieszka Pasztaleniec
- Department of Freshwater Protection, Institute of Environmental Protection- National Research Institute, 01-692 Warsaw, Poland.
| | - Ana M. Antão-Geraldes
- Centro de Investigação da Montanha, Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal;
| | - Vitor Vasconcelos
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR) and University of Porto, 4450-208 Matosinhos, Portugal.
| | - João Morais
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR) and University of Porto, 4450-208 Matosinhos, Portugal.
| | - Micaela Vale
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR) and University of Porto, 4450-208 Matosinhos, Portugal.
| | - Latife Köker
- Department of Freshwater Resource and Management, Faculty of Aquatic Sciences, Istanbul University, 34134 Istanbul, Turkey.
| | - Reyhan Akçaalan
- Department of Freshwater Resource and Management, Faculty of Aquatic Sciences, Istanbul University, 34134 Istanbul, Turkey.
| | - Meriç Albay
- Department of Freshwater Resource and Management, Faculty of Aquatic Sciences, Istanbul University, 34134 Istanbul, Turkey.
| | | | - Filip Stević
- Department of Biology, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia.
| | - Tanja Žuna Pfeiffer
- Department of Biology, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia.
| | - Jeremy Fonvielle
- Department of Experimental Limnology, Leibniz Institute of Freshwater Ecology and Inland Fisheries, 16775 Stechlin, Germany.
| | - Dietmar Straile
- Department of Biology, Limnological Institute, University of Konstanz, 78464 Konstanz, Germany.
| | - Karl-Otto Rothhaupt
- Department of Biology, Limnological Institute, University of Konstanz, 78464 Konstanz, Germany.
| | | | - Pablo Urrutia-Cordero
- Department of Ecology and Genetics, Limnology, Uppsala University, 75236 Uppsala, Sweden.
- Department of Biology, Lund University, 22362 Lund, Sweden.
| | - Luděk Bláha
- RECETOX, Faculty of Science, Masaryk University, 62500 Brno, Czech Republic.
| | - Rodan Geriš
- Department of Hydrobiology, Morava Board Authority, 60200 Brno, Czech Republic.
| | - Markéta Fránková
- Laboratory of Paleoecology, Institute of Botany, The Czech Academy of Sciences, 60200 Brno, Czech Republic.
| | - Mehmet Ali Turan Koçer
- Department of Environment and Resource Management, Mediterranean Fisheries Research Production and Training Institute, 7090 Antalya, Turkey.
| | - Mehmet Tahir Alp
- Faculty of Aquaculture, Mersin University, 33160 Mersin, Turkey.
| | - Spela Remec-Rekar
- Department ofWater Quality, Slovenian Environmental Agency, 1000 Ljubljana, Slovenia.
| | - Tina Elersek
- Department of Genetic Toxicology and Cancer Biology, National Institute of Biology, 1000 Ljubljana, Slovenia.
| | - Theodoros Triantis
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research «DEMOKRITOS», 15341 Attiki, Greece.
| | - Sevasti-Kiriaki Zervou
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research «DEMOKRITOS», 15341 Attiki, Greece.
| | - Anastasia Hiskia
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research «DEMOKRITOS», 15341 Attiki, Greece.
| | - Sigrid Haande
- Department of Freshwater Ecology, Norwegian Institute for Water Research, 0349 Oslo, Norway.
| | - Birger Skjelbred
- Department of Freshwater Ecology, Norwegian Institute for Water Research, 0349 Oslo, Norway.
| | - Beata Madrecka
- Institute of Environmental Engineering, Poznan University of Technology, 60965 Poznan, Poland.
| | - Hana Nemova
- National Reference Center for Hydrobiology, Public Health Authority of the Slovak Republic, 82645 Bratislava, Slovakia.
| | - Iveta Drastichova
- National Reference Center for Hydrobiology, Public Health Authority of the Slovak Republic, 82645 Bratislava, Slovakia.
| | - Lucia Chomova
- National Reference Center for Hydrobiology, Public Health Authority of the Slovak Republic, 82645 Bratislava, Slovakia.
| | - Christine Edwards
- School of Pharmacy and Life Sciences, Robert Gordon University, Aberdeen AB10 7GJ, UK.
| | | | - Hatice Tunca
- Department of Biology, Sakarya University, 54187 Sakarya, Turkey.
| | - Burçin Önem
- Department of Biology, Sakarya University, 54187 Sakarya, Turkey.
| | - Boris Aleksovski
- Faculty of Natural Sciences and Mathematics, SS Cyril and Methodius University, 1000 Skopje, Macedonia.
| | - Svetislav Krstić
- Faculty of Natural Sciences and Mathematics, SS Cyril and Methodius University, 1000 Skopje, Macedonia.
| | - Itana Bokan Vucelić
- Department for Ecotoxicology, Teaching Institute of Public Health of Primorje-Gorski Kotar County, 51000 Rijeka, Croatia.
| | - Lidia Nawrocka
- Institute of Technology, The State University of Applied Sciences, 82300 Elblag, Poland.
| | - Pauliina Salmi
- Department of Biological and Environmental Science, University of Jyväskylä, 40014 Jyväskylä, Finland.
| | - Danielle Machado-Vieira
- Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, 58059-970 Paraíba, Brasil.
| | | | | | - David García
- Department of Civil Engineering, University of A Coruña, 15192 A Coruña, Spain.
| | - Jose Luís Cereijo
- Department of Civil Engineering, University of A Coruña, 15192 A Coruña, Spain.
| | - Joan Gomà
- Department of Evolutionary Biology, Ecology, and Environmental Sciences, University of Barcelona, 08028 Barcelona, Spain.
| | - Mari Carmen Trapote
- Department of Evolutionary Biology, Ecology, and Environmental Sciences, University of Barcelona, 08028 Barcelona, Spain.
| | - Teresa Vegas-Vilarrúbia
- Department of Evolutionary Biology, Ecology, and Environmental Sciences, University of Barcelona, 08028 Barcelona, Spain.
| | - Biel Obrador
- Department of Evolutionary Biology, Ecology, and Environmental Sciences, University of Barcelona, 08028 Barcelona, Spain.
| | - Magdalena Grabowska
- Department of Hydrobiology, University of Bialystok, 15245 Bialystok, Poland.
| | - Maciej Karpowicz
- Department of Hydrobiology, University of Bialystok, 15245 Bialystok, Poland.
| | - Damian Chmura
- Institute of Environmental Protection and Engineering, University of Bielsko-Biala, 43309 Bielsko-Biala, Poland.
| | - Bárbara Úbeda
- Department of Biology, University of Cádiz, 11510 Puerto Real, Cádiz, Spain.
| | - José Ángel Gálvez
- Department of Biology, University of Cádiz, 11510 Puerto Real, Cádiz, Spain.
| | - Arda Özen
- Department of Forest Engineering, University of Cankiri Karatekin, 18200 Cankiri, Turkey.
| | | | - Trine Perlt Warming
- Freshwater Biological Laboratory, Department of Biology, University of Copenhagen, 2100 Copenhagen, Denmark.
| | - Justyna Kobos
- Department of Marine Biotechnology, University of Gdansk, 81378 Gdynia, Poland.
| | - Hanna Mazur-Marzec
- Department of Marine Biotechnology, University of Gdansk, 81378 Gdynia, Poland.
| | | | | | - Lauri Arvola
- Lammi Biological Station, University of Helsinki, 16900 Lammi, Finland.
| | - Pablo Alcaraz-Párraga
- Department of Animal Biology, Plant Biology and Ecology, University of Jaen, 23701 Jaen, Spain.
| | - Magdalena Toporowska
- Department of Hydrobiology and Protection of Ecosystems, University of Life Sciences in Lublin, 20262 Lublin, Poland.
| | - Barbara Pawlik-Skowronska
- Department of Hydrobiology and Protection of Ecosystems, University of Life Sciences in Lublin, 20262 Lublin, Poland.
| | - Michał Niedźwiecki
- Department of Hydrobiology and Protection of Ecosystems, University of Life Sciences in Lublin, 20262 Lublin, Poland.
| | - Wojciech Pęczuła
- Department of Hydrobiology and Protection of Ecosystems, University of Life Sciences in Lublin, 20262 Lublin, Poland.
| | - Manel Leira
- Instituto Dom Luiz, University of Lisbon, 1749016 Lisbon, Portugal.
| | - Armand Hernández
- Institute of Earth Sciences Jaume Almera, ICTJA, CSIC, 08028 Barcelona, Spain.
| | | | | | | | | | | | | | - Rafael Carballeira
- Centro de Investigacións Cientificas Avanzadas (CICA), Facultade de Ciencias, Universidade da Coruña, 15071 A Coruña, Spain.
| | - Antonio Camacho
- Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, 46980 Paterna Valencia, Spain.
| | - Antonio Picazo
- Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, 46980 Paterna Valencia, Spain.
| | - Carlos Rochera
- Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, 46980 Paterna Valencia, Spain.
| | - Anna C. Santamans
- Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, 46980 Paterna Valencia, Spain.
| | - Carmen Ferriol
- Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, 46980 Paterna Valencia, Spain.
| | - Susana Romo
- Department of Microbiology and Ecology, University of Valencia, 46100 Burjassot, Spain.
| | - Juan Miguel Soria
- Department of Microbiology and Ecology, University of Valencia, 46100 Burjassot, Spain. (J.M.S.)
| | - Julita Dunalska
- Department ofWater Protection Engineering, University ofWarmia and Mazury, 10-720 Olsztyn, Poland.
| | - Justyna Sieńska
- Department ofWater Protection Engineering, University ofWarmia and Mazury, 10-720 Olsztyn, Poland.
| | - Daniel Szymański
- Department ofWater Protection Engineering, University ofWarmia and Mazury, 10-720 Olsztyn, Poland.
| | - Marek Kruk
- Department of Tourism, Recreation and Ecology, University of Warmia and Mazury, 10-720 Olsztyn, Poland.
| | | | - Iwona Jasser
- Department of Plant Ecology and Environmental Conservation, Faculty of Biology, University ofWarsaw, 02-089 Warsaw, Poland.
| | - Petar Žutinić
- Department of Biology, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia.
| | - Marija Gligora Udovič
- Department of Biology, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia.
| | | | - Magdalena Frąk
- Department of Environmental Improvement, Faculty of Civil and Environmental Engineering, Warsaw University of Life Sciences—SGGW, 02-787Warsaw, Poland.
| | - Agnieszka Bańkowska-Sobczak
- Department of Hydraulic Engineering, Faculty of Civil and Environmental Engineering, Warsaw University of Life Sciences—SGGW, 02-787Warsaw, Poland.
| | - Michał Wasilewicz
- Department of Hydraulic Engineering, Faculty of Civil and Environmental Engineering, Warsaw University of Life Sciences—SGGW, 02-787Warsaw, Poland.
| | - Korhan Özkan
- Institute of Marine Sciences, Marine Biology and Fisheries, Middle East Technical University, 06800 Ankara, Turkey.
| | - Valentini Maliaka
- Society for the Protection of Prespa, 53077 Agios Germanos, Greece.
- Institute for Water and Wetland Research, Department of Aquatic Ecology and Environmental Biology, Radboud University Nijmegen, 6525 AJ Nijmegen, The Netherlands.
- Department of Environmental Sciences, Wageningen University & Research, 6700 Wageningen, The Netherlands.
| | - Kersti Kangro
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, 51014 Tartu, Estonia.
- Tartu Observatory, Faculty of Science and Technology, University of Tartu, 61602 Tartu, Estonia.
| | - Hans-Peter Grossart
- Department of Experimental Limnology, Leibniz Institute of Freshwater Ecology and Inland Fisheries, 16775 Stechlin, Germany.
- Institute of Biochemistry and Biology, Potsdam University, 14469 Potsdam, Germany.
| | - Hans W. Paerl
- Institute of Marine Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 28557, USA.
| | - Cayelan C. Carey
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA 24061, USA.
| | - Bas W. Ibelings
- Department F.-A. Forel for Environmental and Aquatic Sciences, University of Geneva, 1205 Geneva, Switzerland.
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Krokidis MG, Terzidis MA, Efthimiadou E, Zervou SK, Kordas G, Papadopoulos K, Hiskia A, Kletsas D, Chatgilialoglu C. Purine 5′,8-cyclo-2′-deoxynucleoside lesions: formation by radical stress and repair in human breast epithelial cancer cells. Free Radic Res 2017; 51:470-482. [DOI: 10.1080/10715762.2017.1325485] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Marios G. Krokidis
- Institute of Nanoscience and Nanotechnology, NSCR “Demokritos”, Athens, Greece
| | | | - Eleni Efthimiadou
- Institute of Nanoscience and Nanotechnology, NSCR “Demokritos”, Athens, Greece
| | | | - George Kordas
- Institute of Nanoscience and Nanotechnology, NSCR “Demokritos”, Athens, Greece
| | | | - Anastasia Hiskia
- Institute of Nanoscience and Nanotechnology, NSCR “Demokritos”, Athens, Greece
| | - Dimitris Kletsas
- Institute of Biosciences and Applications, NCSR “Demokritos”, Athens, Greece
| | - Chryssostomos Chatgilialoglu
- Institute of Nanoscience and Nanotechnology, NSCR “Demokritos”, Athens, Greece
- ISOF, Consiglio Nazionale delle Ricerche, Bologna, Italy
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25
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Zervou SK, Christophoridis C, Kaloudis T, Triantis TM, Hiskia A. New SPE-LC-MS/MS method for simultaneous determination of multi-class cyanobacterial and algal toxins. J Hazard Mater 2017; 323:56-66. [PMID: 27453259 DOI: 10.1016/j.jhazmat.2016.07.020] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 07/04/2016] [Accepted: 07/07/2016] [Indexed: 05/26/2023]
Abstract
Cyanobacterial and algal toxins comprise a large group of harmful metabolites, belonging to different chemical classes, with a variety of chemical structures, physicochemical properties and toxic activities. In this study, a fast, simple and sensitive analytical method was developed for the simultaneous determination of multi-class cyanobacterial and algal toxins in water. The target compounds were: Cylindrospermopsin, Anatoxin-a, Nodularin, 12 Microcystins ([D-Asp3]MC-RR, MC-RR, MC-YR, MC-HtyR, [D-Asp3]MC-LR, MC-LR, MC-HilR, MC-WR, MC-LA, MC-LY, MC-LW and MC-LF), Okadaic acid and Domoic acid. Analytes were determined using liquid chromatography-tandem mass spectrometry (LC-MS/MS). A dual Solid Phase Extraction (SPE) cartridge assembly was applied for the extraction of target compounds from water. Optimized SPE parameters included cartridge material, initial sample pH, sequence of the cartridges in the SPE assembly as well as composition and volume of the elution solvent. The method was validated, providing acceptable mean recoveries and reproducibility for most analytes. Limits of detection were at the ngL-1 level. The method was successfully applied in real lake water samples from Greece, where a wide range of Microcystins were detected for the first time, at concentrations ranging from 0.034 to 63μgL-1.
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Affiliation(s)
- Sevasti-Kiriaki Zervou
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou & Neapoleos, 15341 Athens, Greece
| | - Christophoros Christophoridis
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou & Neapoleos, 15341 Athens, Greece
| | - Triantafyllos Kaloudis
- Water Quality Department, Athens Water Supply and Sewerage Company-EYDAP SA, Athens, Greece
| | - Theodoros M Triantis
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou & Neapoleos, 15341 Athens, Greece
| | - Anastasia Hiskia
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou & Neapoleos, 15341 Athens, Greece.
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26
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Fotiou T, Triantis TM, Kaloudis T, O'Shea KE, Dionysiou DD, Hiskia A. Assessment of the roles of reactive oxygen species in the UV and visible light photocatalytic degradation of cyanotoxins and water taste and odor compounds using C-TiO2. Water Res 2016; 90:52-61. [PMID: 26724439 DOI: 10.1016/j.watres.2015.12.006] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Revised: 11/30/2015] [Accepted: 12/04/2015] [Indexed: 06/05/2023]
Abstract
Visible light (VIS) photocatalysis has large potential as a sustainable water treatment process, however the reaction pathways and degradation processes of organic pollutants are not yet clearly defined. The presence of cyanobacteria cause water quality problems since several genera can produce potent cyanotoxins, harmful to human health. In addition, cyanobacteria produce taste and odor compounds, which pose serious aesthetic problems in drinking water. Although photocatalytic degradation of cyanotoxins and taste and odor compounds have been reported under UV-A light in the presence of TiO2, limited studies have been reported on their degradation pathways by VIS photocatalysis of these problematic compounds. The main objectives of this work were to study the VIS photocatalytic degradation process, define the reactive oxygen species (ROS) involved and elucidate the reaction mechanisms. We report carbon doped TiO2 (C-TiO2) under VIS leads to the slow degradation of cyanotoxins, microcystin-LR (MC-LR) and cylindrospermopsin (CYN), while taste and odor compounds, geosmin and 2-methylisoborneol, were not appreciably degraded. Further studies were carried-out employing several specific radical scavengers (potassium bromide, isopropyl alcohol, sodium azide, superoxide dismutase and catalase) and probes (coumarin) to assess the role of different ROS (hydroxyl radical OH, singlet oxygen (1)O2, superoxide radical anion [Formula: see text] ) in the degradation processes. Reaction pathways of MC-LR and CYN were defined through identification and monitoring of intermediates using liquid chromatography tandem mass spectrometry (LC-MS/MS) for VIS in comparison with UV-A photocatalytic treatment. The effects of scavengers and probes on the degradation process under VIS, as well as the differences in product distributions under VIS and UV-A, suggested that the main species in VIS photocatalysis is [Formula: see text] , with OH and (1)O2 playing minor roles in the degradation.
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Affiliation(s)
- Theodora Fotiou
- Laboratory of Catalytic - Photocatalytic Processes and Environmental Analysis, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou & Neapoleos, 15310, Agia Paraskevi, Athens, Greece
| | - Theodoros M Triantis
- Laboratory of Catalytic - Photocatalytic Processes and Environmental Analysis, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou & Neapoleos, 15310, Agia Paraskevi, Athens, Greece
| | - Triantafyllos Kaloudis
- Water Quality Department, Athens Water Supply and Sewerage Company (EYDAP SA), Oropou 156, 11146, Galatsi, Athens, Greece
| | - Kevin E O'Shea
- Department Chemistry and Biochemistry, Florida International University, Miami, FL, 33199, USA
| | - Dionysios D Dionysiou
- Environmental Engineering and Science Program, Department of Biomedical, Chemical and Environmental Engineering (DBCEE), University of Cincinnati, Cincinnati, OH, 45221-0012, USA
| | - Anastasia Hiskia
- Laboratory of Catalytic - Photocatalytic Processes and Environmental Analysis, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou & Neapoleos, 15310, Agia Paraskevi, Athens, Greece.
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Faassen EJ, Antoniou MG, Beekman-Lukassen W, Blahova L, Chernova E, Christophoridis C, Combes A, Edwards C, Fastner J, Harmsen J, Hiskia A, Ilag LL, Kaloudis T, Lopicic S, Lürling M, Mazur-Marzec H, Meriluoto J, Porojan C, Viner-Mozzini Y, Zguna N. A Collaborative Evaluation of LC-MS/MS Based Methods for BMAA Analysis: Soluble Bound BMAA Found to Be an Important Fraction. Mar Drugs 2016; 14:md14030045. [PMID: 26938542 PMCID: PMC4820299 DOI: 10.3390/md14030045] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 01/26/2016] [Accepted: 02/06/2016] [Indexed: 12/12/2022] Open
Abstract
Exposure to β-N-methylamino-l-alanine (BMAA) might be linked to the incidence of amyotrophic lateral sclerosis, Alzheimer’s disease and Parkinson’s disease. Analytical chemistry plays a crucial role in determining human BMAA exposure and the associated health risk, but the performance of various analytical methods currently employed is rarely compared. A CYANOCOST initiated workshop was organized aimed at training scientists in BMAA analysis, creating mutual understanding and paving the way towards interlaboratory comparison exercises. During this workshop, we tested different methods (extraction followed by derivatization and liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS) analysis, or directly followed by LC-MS/MS analysis) for trueness and intermediate precision. We adapted three workup methods for the underivatized analysis of animal, brain and cyanobacterial samples. Based on recovery of the internal standard D3BMAA, the underivatized methods were accurate (mean recovery 80%) and precise (mean relative standard deviation 10%), except for the cyanobacterium Leptolyngbya. However, total BMAA concentrations in the positive controls (cycad seeds) showed higher variation (relative standard deviation 21%–32%), implying that D3BMAA was not a good indicator for the release of BMAA from bound forms. Significant losses occurred during workup for the derivatized method, resulting in low recovery (<10%). Most BMAA was found in a trichloroacetic acid soluble, bound form and we recommend including this fraction during analysis.
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Affiliation(s)
- Elisabeth J Faassen
- Aquatic Ecology & Water Quality Management Group, Wageningen University, P.O. Box 47, Wageningen 6700 DD, The Netherlands.
| | - Maria G Antoniou
- Department of Environmental Science and Technology, Cyprus University of Technology, 3036 Lemesos, Cyprus.
| | - Wendy Beekman-Lukassen
- Aquatic Ecology & Water Quality Management Group, Wageningen University, P.O. Box 47, Wageningen 6700 DD, The Netherlands.
| | - Lucie Blahova
- Faculty of Science, RECETOX, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic.
| | - Ekaterina Chernova
- Saint-Petersburg Scientific-Research Centre for Ecological Safety, Russian Academy of Sciences, 18, Korpusnaya street, St. Petersburg 197110, Russia.
| | - Christophoros Christophoridis
- Laboratory of Catalytic-Photocatalytic Processes and Environmental Analysis, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou & Neapoleos, 15310 Agia Paraskevi, Athens, Greece.
| | - Audrey Combes
- Department of Analytical, Bioanalytical Sciences and Miniaturization (LSABM), UMR CBI 8231 ESPCI ParisTech/CNRS, PSL Research University, ESPCI ParisTech, 75005 Paris, France.
| | - Christine Edwards
- Pharmacy & Life Sciences, Robert Gordon University, Aberdeen AB10 7GJ, UK.
| | - Jutta Fastner
- Drinking-Water Resources and Water Treatment, Federal Environment Agency, Schichauweg 58, 12307 Berlin, Germany.
| | - Joop Harmsen
- Alterra, P.O. Box 47, Wageningen 6700 DD, The Netherlands.
| | - Anastasia Hiskia
- Laboratory of Catalytic-Photocatalytic Processes and Environmental Analysis, Institute of Nanoscience & Nanotechnology, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou & Neapoleos, 15310 Agia Paraskevi, Athens, Greece.
| | - Leopold L Ilag
- Department of Environmental Science and Analytical Chemistry, Stockholm University, SE-10691 Stockholm, Sweden.
| | - Triantafyllos Kaloudis
- Water Quality Department, Division of Quality, Research and Development (R&D), Athens Water Supply and Sewerage Company (EYDAP SA), 156 Oropou str., 11146 Athens, Greece.
| | - Srdjan Lopicic
- Institute for Pathological Physiology, School of Medicine, University of Belgrade, 11000 Belgrade, Serbia.
| | - Miquel Lürling
- Aquatic Ecology & Water Quality Management Group, Wageningen University, P.O. Box 47, Wageningen 6700 DD, The Netherlands.
- NIOO-KNAW, Droevendaalsesteeg 10, Wageningen 6708 PB, The Netherlands.
| | - Hanna Mazur-Marzec
- Department of Marine Biotechnology, University of Gdansk, Al. Marszalka Pilsudskiego 46, Gdynia 81-378, Poland.
| | - Jussi Meriluoto
- Biochemistry, Faculty of Science and Engineering, Åbo Akademi University, Tykistökatu 6A 3rd Floor, Turku 20520, Finland.
| | - Cristina Porojan
- Mass Spectrometry Research Centre (MSRC) and PROTEOBIO Research Groups, Department of Physical Sciences, Cork Institute of Technology, Rossa Avenue, Bishopstown, V92 F9WY, Co. Cork, Ireland.
| | - Yehudit Viner-Mozzini
- Kinneret Limnological Laboratory, Israel Oceanographic & Limnological Research, P.O. Box 447, Migdal 14950, Israel.
| | - Nadezda Zguna
- Department of Environmental Science and Analytical Chemistry, Stockholm University, SE-10691 Stockholm, Sweden.
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Antoniou MG, Zhao C, O’Shea KE, Zhang G, Dionysiou DD, Zhao C, Han C, Nadagouda MN, Choi H, Fotiou T, Triantis TM, Hiskia A. CHAPTER 1. Photocatalytic Degradation of Organic Contaminants in Water: Process Optimization and Degradation Pathways. Energy and Environment Series 2016. [DOI: 10.1039/9781782627104-00001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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He X, de la Cruz AA, Hiskia A, Kaloudis T, O'Shea K, Dionysiou DD. Destruction of microcystins (cyanotoxins) by UV-254 nm-based direct photolysis and advanced oxidation processes (AOPs): influence of variable amino acids on the degradation kinetics and reaction mechanisms. Water Res 2015; 74:227-238. [PMID: 25744186 DOI: 10.1016/j.watres.2015.02.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 02/04/2015] [Accepted: 02/06/2015] [Indexed: 06/04/2023]
Abstract
Hepatotoxic microcystins (MCs) are the most frequently detected group of cyanobacterial toxins. This study investigated the degradation of common MC variants in water, MC-LR, MC-RR, MC-YR and MC-LA, by UV-254 nm-based processes, UV only, UV/H2O2, UV/S2O8(2-) and UV/HSO5(-). Limited direct photolysis of MCs was observed, while the addition of an oxidant significantly improved the degradation efficiency with an order of UV/S2O8(2-) > UV/HSO5(-) > UV/H2O2 at the same initial molar concentration of the oxidant. The removal of MC-LR by UV/H2O2 appeared to be faster than another cyanotoxin, cylindrospermopsin, at either the same initial molar concentration or the same initial organic carbon concentration of the toxin. It suggested a faster reaction of MC-LR with hydroxyl radical, which was further supported by the determined second-order rate constant of MCs with hydroxyl radical. Both isomerization and photohydration byproducts were observed in UV only process for all four MCs; while in UV/H2O2, hydroxylation and diene-Adda double bond cleavage byproducts were detected. The presence of a tyrosine in the structure of MC-YR significantly promoted the formation of monohydroxylation byproduct m/z 1061; while the presence of a second arginine in MC-RR led to the elimination of a guanidine group and the absence of double bond cleavage byproducts. It was therefore demonstrated in this study that the variable amino acids in the structure of MCs influenced not only the degradation kinetics but also the preferable reaction mechanisms.
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Affiliation(s)
- Xuexiang He
- Environmental Engineering and Science Program, University of Cincinnati, Cincinnati, OH 45221-0012, United States; Nireas-International Water Research Centre, University of Cyprus, P.O. Box 20537, 1678 Nicosia, Cyprus
| | - Armah A de la Cruz
- Office of Research and Development, U.S. Environmental Protection Agency, Cincinnati, OH 45268, United States
| | - Anastasia Hiskia
- Institute of Advanced Materials, Physicochemical Processes, Nanotechnology and Microsystems, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou & Neapoleos, 15310 Agia Paraskevi, Athens, Greece
| | - Triantafyllos Kaloudis
- Water Quality Department, Athens Water Supply and Sewerage Company (EYDAP SA), Oropou 156, 11146 Galatsi, Athens, Greece
| | - Kevin O'Shea
- Department of Chemistry and Biochemistry, Florida International University, Miami, FL 33199, United States
| | - Dionysios D Dionysiou
- Environmental Engineering and Science Program, University of Cincinnati, Cincinnati, OH 45221-0012, United States; Nireas-International Water Research Centre, University of Cyprus, P.O. Box 20537, 1678 Nicosia, Cyprus.
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Fotiou T, Triantis T, Kaloudis T, Hiskia A. Photocatalytic degradation of cylindrospermopsin under UV-A, solar and visible light using TiO2. Mineralization and intermediate products. Chemosphere 2015; 119 Suppl:S89-S94. [PMID: 24846598 DOI: 10.1016/j.chemosphere.2014.04.045] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 04/02/2014] [Accepted: 04/03/2014] [Indexed: 06/03/2023]
Abstract
Cyanobacteria (blue-green algae) are considered an important water quality problem, since several genera can produce toxins, called cyanotoxins that are harmful to human health. Cylindrospermopsin (CYN) is an alkaloid-like potent cyanotoxin that has been reported in water reservoirs and lakes worldwide. In this paper the removal of CYN from water by UV-A, solar and visible light photocatalysis was investigated. Two different commercially available TiO2 photocatalysts were used, i.e., Degussa P25 and Kronos-vlp7000. Complete degradation of CYN was achieved with both photocatalysts in 15 and 40 min under UV-A and 40 and 120 min under solar light irradiation, for Degussa P25 and Kronos vlp-7000 respectively. Experiments in the absence of photocatalysts showed that direct photolysis was negligible. Under visible light irradiation only the Kronos vlp-7000 which is a visible light activated catalyst was able to degrade CYN. A number of intermediates were identified and a complete degradation pathway is proposed, leading to the conclusion that hydroxyl radical attack is the main mechanism followed. TOC and inorganic ions (NO2-, NO3-, SO4(2-) and NH4+) determinations suggested that complete mineralization of CYN was achieved under UV-A in the presence of Degussa P25.
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Affiliation(s)
- Theodora Fotiou
- Laboratory of Catalytic - Photocatalytic Processes (Solar Energy - Environment), Institute of Advanced Materials, Physicochemical Processes, Nanotechnology & Microsystems, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou & Neapoleos, 15310 Agia Paraskevi, Athens, Greece
| | - Theodoros Triantis
- Laboratory of Catalytic - Photocatalytic Processes (Solar Energy - Environment), Institute of Advanced Materials, Physicochemical Processes, Nanotechnology & Microsystems, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou & Neapoleos, 15310 Agia Paraskevi, Athens, Greece
| | - Triantafyllos Kaloudis
- Water Quality Department, Athens Water Supply and Sewerage Company (EYDAP SA), Oropou 156, 11146 Galatsi, Athens, Greece.
| | - Anastasia Hiskia
- Laboratory of Catalytic - Photocatalytic Processes (Solar Energy - Environment), Institute of Advanced Materials, Physicochemical Processes, Nanotechnology & Microsystems, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou & Neapoleos, 15310 Agia Paraskevi, Athens, Greece.
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Fotiou T, Triantis TM, Kaloudis T, Papaconstantinou E, Hiskia A. Photocatalytic degradation of water taste and odour compounds in the presence of polyoxometalates and TiO2: Intermediates and degradation pathways. J Photochem Photobiol A Chem 2014. [DOI: 10.1016/j.jphotochem.2014.04.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Kaloudis T, Zervou SK, Tsimeli K, Triantis TM, Fotiou T, Hiskia A. Determination of microcystins and nodularin (cyanobacterial toxins) in water by LC-MS/MS. Monitoring of Lake Marathonas, a water reservoir of Athens, Greece. J Hazard Mater 2013; 263 Pt 1:105-115. [PMID: 23958137 DOI: 10.1016/j.jhazmat.2013.07.036] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Revised: 07/04/2013] [Accepted: 07/17/2013] [Indexed: 06/02/2023]
Abstract
A method for the determination of the hepatotoxic cyanotoxins microcystins (MCs, i.e. MC-LR, MC-RR, MC-YR, MC-LA) and nodularin (NOD) in water was developed using liquid chromatography with electrospray ionization triple quadrupole mass spectrometry (LC-ESI-MS/MS) after solid phase extraction (SPE). New patterns of fragmentation of MC-LA were observed under the experimental conditions used. The method was fully validated to meet accreditation criteria. Mean recoveries at three concentration levels (0.006, 0.1 and 1 μg L(-1)) ranged between 70 and 114% with %RSD values generally below 20%. Detection limits were 2 ng L(-1) for all hepatotoxins. The method was applied to study the occurrence of MCs and NOD in Lake Marathonas, a water reservoir of Athens, over a period from July 2007 to December 2010. The protein phosphatase inhibition assay (PPIA) was additionally used for fast screening of samples. MC-YR, MC-LR and MC-RR were detected and found to vary seasonally with consistent peaks during early autumn, having maximum concentrations of 717, 451 and 174 ng L(-1), respectively. The results of this study constitute the first report on the presence, concentration levels and seasonal variations of MCs in Lake Marathonas. None of the target cyanotoxins were detected in treated drinking water samples during the period of the study.
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Affiliation(s)
- Triantafyllos Kaloudis
- Quality Control Department, Athens Water Supply and Sewerage Company (EYDAP SA), Oropou 156, 11146 Galatsi, Athens, Greece
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de la Cruz AA, Hiskia A, Kaloudis T, Chernoff N, Hill D, Antoniou MG, He X, Loftin K, O'Shea K, Zhao C, Pelaez M, Han C, Lynch TJ, Dionysiou DD. A review on cylindrospermopsin: the global occurrence, detection, toxicity and degradation of a potent cyanotoxin. Environ Sci Process Impacts 2013; 15:1979-2003. [PMID: 24056894 DOI: 10.1039/c3em00353a] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Cylindrospermopsin is an important cyanobacterial toxin found in water bodies worldwide. The ever-increasing and global occurrence of massive and prolonged blooms of cylindrospermopsin-producing cyanobacteria poses a potential threat to both human and ecosystem health. Its toxicity is associated with metabolic activation and may involve mechanisms that adversely affect a wide variety of targets in an organism. Cylindrospermopsin has been shown to be cytotoxic, dermatotoxic, genotoxic, hepatotoxic in vivo, developmentally toxic, and may be carcinogenic. Human exposure may occur through drinking water, during recreational activities and by consuming foods in which the toxin may have bioaccumulated. Drinking water shortages of sufficient quality coupled with growing human pressures and climate variability and change necessitate an integrated and sustainable water management program. This review presents an overview of the importance of cylindrospermopsin, its detection, toxicity, worldwide distribution, and lastly, its chemical and biological degradation and removal by natural processes and drinking water treatment processes.
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Affiliation(s)
- Armah A de la Cruz
- Office of Research and Development, US Environmental Protection Agency, Cincinnati, Ohio, USA
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Fotiou T, Triantis TM, Kaloudis T, Pastrana-Martínez LM, Likodimos V, Falaras P, Silva AM, Hiskia A. Photocatalytic Degradation of Microcystin-LR and Off-Odor Compounds in Water under UV-A and Solar Light with a Nanostructured Photocatalyst Based on Reduced Graphene Oxide–TiO2 Composite. Identification of Intermediate Products. Ind Eng Chem Res 2013. [DOI: 10.1021/ie400382r] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
| | | | - Triantafyllos Kaloudis
- Quality Control Department, Athens Water Supply and Sewerage Company (EYDAP SA), Oropou
156, 11146 Galatsi, Athens, Greece
| | - Luisa M. Pastrana-Martínez
- LCM—Laboratory of Catalysis
and Materials−Associate Laboratory LSRE/LCM, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465
Porto, Portugal
| | | | | | - Adrián M.T. Silva
- LCM—Laboratory of Catalysis
and Materials−Associate Laboratory LSRE/LCM, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465
Porto, Portugal
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Sharma VK, Triantis TM, Antoniou MG, He X, Pelaez M, Han C, Song W, O’Shea KE, de la Cruz AA, Kaloudis T, Hiskia A, Dionysiou DD. Destruction of microcystins by conventional and advanced oxidation processes: A review. Sep Purif Technol 2012. [DOI: 10.1016/j.seppur.2012.02.018] [Citation(s) in RCA: 125] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Litter MI, Choi W, Dionysiou DDD, Falaras P, Hiskia A, Li Puma G, Pradeep T, Zhao J. Nanotechnologies for the treatment of water, air and soil. J Hazard Mater 2012; 211-212:1-2. [PMID: 22386998 DOI: 10.1016/j.jhazmat.2012.02.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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Triantis TM, Fotiou T, Kaloudis T, Kontos AG, Falaras P, Dionysiou DD, Pelaez M, Hiskia A. Photocatalytic degradation and mineralization of microcystin-LR under UV-A, solar and visible light using nanostructured nitrogen doped TiO2. J Hazard Mater 2012; 211-212:196-202. [PMID: 22169146 DOI: 10.1016/j.jhazmat.2011.11.042] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Revised: 11/09/2011] [Accepted: 11/12/2011] [Indexed: 05/31/2023]
Abstract
In an attempt to face serious environmental hazards, the degradation of microcystin-LR (MC-LR), one of the most common and more toxic water soluble cyanotoxin compounds released by cyanobacteria blooms, was investigated using nitrogen doped TiO(2) (N-TiO(2)) photocatalyst, under UV-A, solar and visible light. Commercial Degussa P25 TiO(2), Kronos and reference TiO(2) nanopowders were used for comparison. It was found that under UV-A irradiation, all photocatalysts were effective in toxin elimination. The higher MC-LR degradation (99%) was observed with Degussa P25 TiO(2) followed by N-TiO(2) with 96% toxin destruction after 20 min of illumination. Under solar light illumination, N-TiO(2) nanocatalyst exhibits similar photocatalytic activity with that of commercially available materials such as Degussa P25 and Kronos TiO(2) for the destruction of MC-LR. Upon irradiation with visible light Degussa P25 practically did not show any response, while the N-TiO(2) displayed remarkable photocatalytic efficiency. In addition, it has been shown that photodegradation products did not present any significant protein phosphatase inhibition activity, proving that toxicity is proportional only to the remaining MC-LR in solution. Finally, total organic carbon (TOC) and inorganic ions (NO(2)(-), NO(3)(-) and NH(4)(+)) determinations confirmed that complete photocatalytic mineralization of MC-LR was achieved under both UV-A and solar light.
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Affiliation(s)
- T M Triantis
- Laboratory of Catalytic - Photocatalytic Processes (Solar Energy - Environment), Institute of Physical Chemistry, National Center for Scientific Research Demokritos, Neapoleos 25, 15310 Agia Paraskevi, Attiki, Greece
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He X, Pelaez M, Westrick JA, O'Shea KE, Hiskia A, Triantis T, Kaloudis T, Stefan MI, de la Cruz AA, Dionysiou DD. Efficient removal of microcystin-LR by UV-C/H₂O₂ in synthetic and natural water samples. Water Res 2012; 46:1501-1510. [PMID: 22177771 DOI: 10.1016/j.watres.2011.11.009] [Citation(s) in RCA: 121] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2011] [Revised: 10/01/2011] [Accepted: 11/04/2011] [Indexed: 05/31/2023]
Abstract
The destruction of the commonly found cyanobacterial toxin, microcystin-LR (MC-LR), in surface waters by UV-C/H(2)O(2) advanced oxidation process (AOP) was studied. Experiments were carried out in a bench scale photochemical apparatus with low pressure mercury vapor germicidal lamps emitting at 253.7 nm. The degradation of MC-LR was a function of UV fluence. A 93.9% removal with an initial MC-LR concentration of 1 μM was achieved with a UV fluence of 80 mJ/cm(2) and an initial H(2)O(2) concentration of 882 μM. When increasing the concentration of MC-LR only, the UV fluence-based pseudo-first order reaction rate constant generally decreased, which was probably due to the competition between by-products and MC-LR for hydroxyl radicals. An increase in H(2)O(2) concentration led to higher removal efficiency; however, the effect of HO scavenging by H(2)O(2) became significant for high H(2)O(2) concentrations. The impact of water quality parameters, such as pH, alkalinity and the presence of natural organic matter (NOM), was also studied. Field water samples from Lake Erie, Michigan and St. Johns River, Florida were employed to evaluate the potential application of this process for the degradation of MC-LR. Results showed that the presence of both alkalinity (as 89.6-117.8 mg CaCO(3)/L) and NOM (as ∼2 to ∼9.5 mg/L TOC) contributed to a significant decrease in the destruction rate of MC-LR. However, a final concentration of MC-LR bellow the guideline value of 1 μg/L was still achievable under current experimental conditions when an initial MC-LR concentration of 2.5 μg/L was spiked into those real water samples.
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Affiliation(s)
- Xuexiang He
- Environmental Engineering and Science Program, University of Cincinnati, 705 Engineering Research Center, Cincinnati, OH 45221-0012, USA
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A. de la Cruz A, G. Antoniou M, Hiskia A, Pelaez M, Song W, E. O'Shea K, He X, D. Dionysiou D. Can We Effectively Degrade Microcystins? - Implications on Human Health. Anticancer Agents Med Chem 2011; 11:19-37. [DOI: 10.2174/187152011794941217] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2010] [Accepted: 02/05/2011] [Indexed: 11/22/2022]
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Triantis T, Tsimeli K, Kaloudis T, Thanassoulias N, Lytras E, Hiskia A. Development of an integrated laboratory system for the monitoring of cyanotoxins in surface and drinking waters. Toxicon 2010; 55:979-89. [DOI: 10.1016/j.toxicon.2009.07.012] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2009] [Revised: 06/18/2009] [Accepted: 07/14/2009] [Indexed: 11/16/2022]
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Antonaraki S, Triantis T, Papaconstantinou E, Hiskia A. Photocatalytic degradation of lindane by polyoxometalates: Intermediates and mechanistic aspects. Catal Today 2010. [DOI: 10.1016/j.cattod.2010.02.017] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Triantis T, Troupis A, Gkika E, Alexakos G, Boukos N, Papaconstantinou E, Hiskia A. Photocatalytic synthesis of Se nanoparticles using polyoxometalates. Catal Today 2009. [DOI: 10.1016/j.cattod.2008.12.028] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Troupis A, Triantis T, Hiskia A, Papaconstantinou E. Rate-Redox-Controlled Size-Selective Synthesis of Silver Nanoparticles Using Polyoxometalates. Eur J Inorg Chem 2008. [DOI: 10.1002/ejic.200800805] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Tsimeli K, Triantis T, Dimotikali D, Hiskia A. Development of a rapid and sensitive method for the simultaneous determination of 1,2-dibromoethane, 1,4-dichlorobenzene and naphthalene residues in honey using HS-SPME coupled with GC–MS. Anal Chim Acta 2008; 617:64-71. [DOI: 10.1016/j.aca.2008.03.049] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2007] [Revised: 03/20/2008] [Accepted: 03/25/2008] [Indexed: 10/22/2022]
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Troupis A, Gkika E, Triantis T, Hiskia A, Papaconstantinou E. Photocatalytic reductive destruction of azo dyes by polyoxometallates: Naphthol blue black. J Photochem Photobiol A Chem 2007. [DOI: 10.1016/j.jphotochem.2006.12.022] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Eliades T, Hiskia A, Eliades G, Athanasiou AE. Assessment of bisphenol-A release from orthodontic adhesives. Am J Orthod Dentofacial Orthop 2007; 131:72-5. [PMID: 17208109 DOI: 10.1016/j.ajodo.2006.08.013] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2006] [Revised: 08/04/2006] [Accepted: 08/04/2006] [Indexed: 10/23/2022]
Abstract
INTRODUCTION The aim of this study was to quantitatively characterize the bisphenol-A (BPA) released from orthodontic adhesives after artificial accelerated aging. METHODS A chemically cured, no-mix adhesive and a visible light-cured adhesive were bonded to 40 stainless steel brackets divided in 2 groups of 20 brackets each. In total, 3 series of specimens were prepared for each adhesive-bracket group. All specimens were immersed in alcohol to induce accelerated aging. Samples of eluent removed from each group at 1 day and at 1, 3, and 5 weeks after aging were processed with high-pressure liquid chromatography; all assays were performed in triplicate, and the results were averaged. RESULTS No trace of BPA was identified for either adhesive across all time intervals, implying that, if present, the amount of BPA did not exceed the detection limit of the analytical technique (0.1 ppm or 0.1 microg/L). CONCLUSIONS BPA release from light-cured or chemically cured, no-mix adhesives did not reach the 0.1 ppm level. Estrogenicity assays are required to clarify the potential estrogenicity of adhesives, whereas formulation of benzoic ring-free, high molecular weight monomers might eliminate the concerns associated with the use of Bis-GMA.
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Affiliation(s)
- Theodore Eliades
- Department of Orthodontics, School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece.
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Troupis A, Gkika E, Hiskia A, Papaconstantinou E. Photocatalytic reduction of metals using polyoxometallates: recovery of metals or synthesis of metal nanoparticles. CR CHIM 2006. [DOI: 10.1016/j.crci.2005.02.041] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Gkika E, Troupis A, Hiskia A, Papaconstantinou E. Photocatalytic reduction and recovery of mercury by polyoxometalates. Environ Sci Technol 2005; 39:4242-8. [PMID: 15984806 DOI: 10.1021/es0493143] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Photocatalytic reduction of mercury in aqueous solutions using PW12O40(3-) or SiW12O40(4-) as photocatalysts has been studied as a function of irradiation time, concentration of Hg(II), polyoxometalate, and organic substrate in the presence or absence of dioxygen. The photocatalytic cycle starts with irradiation of polyoxometalate, goes through the oxidation of, for instance, propan-2-ol (used as sacrificial reagent), and closes with the reoxidation of reduced polyoxometalate by Hg2+ ions. Mercury(II) is reduced to mercury(I) and finally to Hg(0) giving a dark-gray deposit, following a staged one-by-one electron process and a first-order kinetics in [Hg2+]. The process is slightly more efficient in the absence of dioxygen, while the increase of either catalyst or propan-2-ol concentration results in the augmentation of the rate of reduction till a certain point where it reaches a plateau. The results show that this method is suitable for a great range of mercury concentration from 20 to 800 ppm achieving almost complete recovery of mercury up to nondetected traces (<50 ppb). In addition, this homogeneous process demonstrates advantages such as the lack of necessity for separation of the zero state metal from the catalyst and ensures that the precipitation of metal will not poison the catalyst or hinder its photocatalytic activity.
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Affiliation(s)
- E Gkika
- Institute of Physical Chemistry, NCSR Demokritos, 153 10 Athens, Greece
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Gioka C, Bourauel C, Hiskia A, Kletsas D, Eliades T, Eliades G. Light-cured or chemically cured orthodontic adhesive resins? A selection based on the degree of cure, monomer leaching, and cytotoxicity. Am J Orthod Dentofacial Orthop 2005; 127:413-9; quiz 516. [PMID: 15821685 DOI: 10.1016/j.ajodo.2004.02.015] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
PURPOSE The purpose of this study was to estimate the degree of cure and monomer leaching of a light-cured and a chemically cured (no-mix) adhesive and to assess their biologic properties. MATERIAL The degree of cure of adhesive specimens prepared with a procedure identical to the clinical bonding process was assessed by infrared spectroscopy. The adhesives were then immersed in normal saline solution for 2 months, and the residual monomer leached from the adhesives was quantitatively and qualitatively analyzed by liquid chromatography. The effect of the immersion media on human gingival fibroblasts' viability and proliferation was also evaluated with the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and deoxyribonucleic acid (DNA) synthesis assays, respectively. The results were analyzed by analysis of variance and Tukey test (alpha = .05). RESULTS No difference was found between the 2 adhesives with respect to their degree of cure and the amount of triethylene glycol dimethacrylate released; no diglycidyl dimethacrylate monomer was detected in the eluent. However, significant qualitative changes in the composition of the substances eluted from the 2 adhesives were observed. CONCLUSIONS Whereas no cytotoxic effect was shown for either immersion media, a moderate reduction in the DNA synthesis was obtained by both adhesives, implying a minor cytostatic effect. Further research is required to assess the long-term biologic properties of adhesives, including potential estrogenic action.
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Affiliation(s)
- Christiana Gioka
- Experimental Orthodontics, School of Dentistry, Bonn University, Germany
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