1
|
Meyers N, Everaert G, Hostens K, Schmidt N, Herzke D, Fuda JL, Janssen CR, De Witte B. Towards reliable data: Validation of a machine learning-based approach for microplastics analysis in marine organisms using Nile red staining. MARINE POLLUTION BULLETIN 2024; 207:116804. [PMID: 39241371 DOI: 10.1016/j.marpolbul.2024.116804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 07/10/2024] [Accepted: 07/31/2024] [Indexed: 09/09/2024]
Abstract
Microplastic (MP) research faces challenges due to costly, time-consuming, and error-prone analysis techniques. Additionally, the variability in data quality across studies limits their comparability. This study addresses the critical need for reliable and cost-effective MP analysis methods through validation of a semi-automated workflow, where environmentally relevant MP were spiked into and recovered from marine fish gastrointestinal tracts (GITs) and blue mussel tissue, using Nile red staining and machine learning automated analysis of different polymers. Parameters validated include trueness, precision, uncertainty, limit of quantification, specificity, sensitivity, selectivity, and method robustness. For fish GITs a 95 ± 9 % recovery rate was achieved, and 87 ± 11 % for mussels. Polymer identification accuracies were 76 ± 8 % for fish GITs and 80 ± 13 % for mussels. Polyethylene terephthalate fragments showed more variability with lower accuracies. The proposed validation parameters offer a step towards quality management guidelines, as such aiding future researchers and fostering cross-study comparability.
Collapse
Affiliation(s)
- Nelle Meyers
- Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Marine Research, InnovOcean Campus, Jacobsenstraat 1, 8400 Ostend, Belgium; Flanders Marine Institute (VLIZ), InnovOcean Campus, Jacobsenstraat 1, 8400 Ostend, Belgium; Ghent University, Laboratory of Environmental Toxicology and Aquatic Ecology, Faculty of Bioscience Engineering, Coupure Links 653, 9000 Ghent, Belgium.
| | - Gert Everaert
- Flanders Marine Institute (VLIZ), InnovOcean Campus, Jacobsenstraat 1, 8400 Ostend, Belgium
| | - Kris Hostens
- Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Marine Research, InnovOcean Campus, Jacobsenstraat 1, 8400 Ostend, Belgium
| | - Natascha Schmidt
- NILU, The FRAM Centre, P.O. Box 6606, 9296 Tromsø, Norway; Aix Marseille University, Toulon University, CNRS, IRD, Mediterranean Institute of Oceanography (MIO), UM 110, Marseille, France
| | - Dorte Herzke
- NILU, The FRAM Centre, P.O. Box 6606, 9296 Tromsø, Norway; Norwegian Institute for Public Health (NIPH), P.O. Box 222, Skøyen, 0213 Oslo, Norway
| | - Jean-Luc Fuda
- Aix Marseille University, Toulon University, CNRS, IRD, Mediterranean Institute of Oceanography (MIO), UM 110, Marseille, France
| | - Colin R Janssen
- Ghent University, Laboratory of Environmental Toxicology and Aquatic Ecology, Faculty of Bioscience Engineering, Coupure Links 653, 9000 Ghent, Belgium; Blue Growth Research Lab, Ghent University, Bluebridge, Wetenschapspark 1, 8400, Ostend, Belgium
| | - Bavo De Witte
- Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Marine Research, InnovOcean Campus, Jacobsenstraat 1, 8400 Ostend, Belgium
| |
Collapse
|
2
|
Glorio Patrucco S, Rivoira L, Bruzzoniti MC, Barbera S, Tassone S. Development and application of a novel extraction protocol for the monitoring of microplastic contamination in widely consumed ruminant feeds. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 947:174493. [PMID: 38969126 DOI: 10.1016/j.scitotenv.2024.174493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 05/21/2024] [Accepted: 07/02/2024] [Indexed: 07/07/2024]
Abstract
Plastics and, in particular, microplastics (MPs) (< 5 mm) are emerging environmental pollutants responsible for interconnected risks to environmental, human, and animal health. The livestock sector is highly affected by these contaminants, with 50-60 % of the foreign bodies found in slaughtered domestic cattle being recognized as plastic-based materials. Additionally, microplastics were recently detected inside ruminant bodies and in their feces. MPs presence in ruminants could be explained by the intensive usage of plastic materials on farms, in particular to store feeds (i.e. to cover horizontal silos and to wrap hay bales). Although feed could be one of the main sources of plastics, especially of microplastics, a specific protocol to detect them in ruminant feeds is not actually present. Hence, the aim of this study was to optimize a specific protocol for the extraction, quantification, and identification of five microplastic polymers (high-density polyethylene, low-density polyethylene, polyamide fibers/particles, polyethylene terephthalate and polystyrene) from feeds typically used in ruminant diets (corn silage, hay, high protein feedstuff and total mixed ration). Several combinations of Fenton reactions and KOH digestion were tested. The final extraction protocol involved a KOH digestion (60 °C for 24 h), followed by two/three cycles of Fenton reactions. The extraction recoveries were of 100 % for high-density, low-density polyethylene, polyamide particles, and polystyrene and higher than 85 % for polyethylene terephthalate and polyamide fibers. Finally, the optimized protocol was successfully applied in the extraction of microplastics from real feed samples. All the feeds contained microplastics, particularly polyethylene, thus confirming the exposure of ruminants to MPs.
Collapse
Affiliation(s)
- Sara Glorio Patrucco
- Department of Agricultural, Forest and Food Sciences, University of Turin, Largo P. Braccini 2, 10095 Grugliasco, Italy
| | - Luca Rivoira
- Department of Chemistry, University of Turin, Via Pietro Giuria 7, 10125 Turin, Italy.
| | | | - Salvatore Barbera
- Department of Agricultural, Forest and Food Sciences, University of Turin, Largo P. Braccini 2, 10095 Grugliasco, Italy
| | - Sonia Tassone
- Department of Agricultural, Forest and Food Sciences, University of Turin, Largo P. Braccini 2, 10095 Grugliasco, Italy
| |
Collapse
|
3
|
Crutchett TW, Bornt KR. A simple overflow density separation method that recovers >95% of dense microplastics from sediment. MethodsX 2024; 12:102638. [PMID: 38445174 PMCID: PMC10912609 DOI: 10.1016/j.mex.2024.102638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 02/26/2024] [Indexed: 03/07/2024] Open
Abstract
Density separation can isolate microplastics from environmental samples containing sediment. Typically, a solution added to sediment causes microplastics with lower densities to float. The solution of choice can influence the recovery of different particles since denser solutions can separate a greater range of microplastics. The equipment and procedural complexity further influence density separation protocols and microplastic recoveries. Zinc chloride (ZnCl2) is frequently used to isolate high-density polymers from environmental samples yet is rarely validated with simple, well-described protocols. A simple overflow method using ZnCl2 to isolate microplastics from sediment samples is described following a 3-step process: (1. Separation) ZnCl2 (1.7 g cm-3) solution is added to a sediment sample, agitated then settled; (2. Overflows) buoyant particles at the surface of the solution are overflowed twice; (3. Filtration) the overflowed solution is filtered. In a validation experiment with polyamide, rubber, polyvinyl chloride and polyethylene terephthalate/polyester, the mean recovery using this overflow method was 96 % ± 0.6 (standard error). This overflow density separation method proposes an accessible and reliable protocol to extract medium and high-density microplastics.•Microplastic separation with concentrated ZnCl2 solution•Simple overflow of buoyant particles•Reliable extraction of microplastics.
Collapse
Affiliation(s)
- Thomas W. Crutchett
- School of Biological Sciences and the Oceans Institute, The University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009, Australia
| | - Katrina R. Bornt
- School of Biological Sciences and the Oceans Institute, The University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009, Australia
| |
Collapse
|
4
|
Li Q, Jiang L, Feng J, Wang X, Wang X, Xu X, Chu W. Aged polystyrene microplastics exacerbate alopecia associated with tight junction injuries and apoptosis via oxidative stress pathway in skin. ENVIRONMENT INTERNATIONAL 2024; 186:108638. [PMID: 38593689 DOI: 10.1016/j.envint.2024.108638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 03/13/2024] [Accepted: 04/06/2024] [Indexed: 04/11/2024]
Abstract
Microplastics (MPs) are pervasive pollutants in the natural environment and contribute to increased levels of illness in both animals and humans. However, thespecific impacts of MPs on skin damage and alopeciaare not yet well understood. In this study, we have examined the effects of two types of polystyrene MPs (pristine and aged) on skin and hair follicle damage in mice. UV irradiation changed the chemical and physical properties of the aged MPs, including functional groups, surface roughness, and contact angles. In both in vivo and in vitro experiments, skin and cell injuries related to oxidative stress, apoptosis, tight junctions (TJs), alopecia, mitochondrial dysfunction, and other damages were observed. Mechanistically, MPs and aged MPs can induce TJs damage via the oxidative stress pathway and inhibition of antioxidant-related proteins, and this can lead to alopecia. The regulation of cell apoptosis was also observed, and this is involved in the ROS-mediated mitochondrial signaling pathway. Importantly, aged MPs showed exacerbated toxicity, which may be due to their elevated surface irregularities and altered chemical compositions. Collectively, this study suggests a potential therapeutic approach for alopecia and hair follicle damage caused by MPs pollution.
Collapse
Affiliation(s)
- Qian Li
- School of Pharmaceutical Sciences, Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen, China
| | - Lehua Jiang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Jianhai Feng
- School of Pharmaceutical Sciences, Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen, China
| | - Xinhui Wang
- School of Pharmaceutical Sciences, Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen, China
| | - Xusheng Wang
- School of Pharmaceutical Sciences, Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen, China
| | - Xuejuan Xu
- Department of Endocrinology, The First People's Hospital of Foshan, Foshan, Guangdong, China
| | - Weiwei Chu
- Department of Plastic Surgery, The First Affiliated Hospital of Bengbu Medical University, Bengbu, China.
| |
Collapse
|
5
|
Kuznetsova OV. Current trends and challenges in the analysis of marine environmental contaminants by isotope ratio mass spectrometry. Anal Bioanal Chem 2024; 416:71-85. [PMID: 37979060 DOI: 10.1007/s00216-023-05029-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 10/26/2023] [Accepted: 10/30/2023] [Indexed: 11/19/2023]
Abstract
An increasing number of organic and inorganic pollutants are being detected in the marine environment, posing a severe threat to the ecosystem and human health, even in trace concentrations. Isotope ratio mass spectrometry (IRMS) is one of the critical methods for determining the origin and fate of environmental pollutants and characterising their transformation processes. It has been used for a relatively long time for ecological monitoring of some well-studied industrial hydrocarbons at contaminated sites. However, the method still faces many analytical challenges. This review provides a comprehensive overview of recent technical advances concerning IRMS analysis of various contaminants and discusses typical pitfalls encountered in marine environment analysis. Particular attention is given to the study of sampling techniques and sample preparation for examination, often the keys to successful research given the complexity of marine matrices and the diverse and numerous nature of contaminants. Prospects for developing IRMS to monitor pollution sources and pollutant transformation in the marine environment are outlined.
Collapse
Affiliation(s)
- Olga V Kuznetsova
- Vernadsky Institute of Geochemistry and Analytical Chemistry, Kosygin St. 19, 119991, Moscow, Russian Federation.
| |
Collapse
|
6
|
Mohan K, Lakshmanan VR. A critical review of the recent trends in source tracing of microplastics in the environment. ENVIRONMENTAL RESEARCH 2023; 239:117394. [PMID: 37838194 DOI: 10.1016/j.envres.2023.117394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/26/2023] [Accepted: 10/11/2023] [Indexed: 10/16/2023]
Abstract
Microplastics are found across the globe because of their size and ability to transport across environments. The effects of microplastics on the micro- and macro-organisms have brought out concern over the potential risk to human health and the need to regulate their distribution at the source. Control of microplastic pollution requires region-specific management and mitigation strategies which can be developed with the information on sources and their contributions. This review provides an overview of the sources, fate, and distribution of microplastics along with techniques to source-trace microplastics. Source-tracing approaches provide both qualitative and quantitive information. Since better outcomes have been produced by the integration of techniques like backward trajectory analysis with cluster analysis, the significance of integrated and multi-dimensional approaches has been emphasized. The scope of the plastisphere, heavy metal, and biofilm microbial community in tracing the sources of microplastics are also highlighted. The present review allows the researchers and policymakers to understand the recent trends in the source-tracing of microplastics which will help them to develop techniques and comprehensive action plans to limit the microplastic discharge at sources.
Collapse
Affiliation(s)
- Kiruthika Mohan
- Department of Environmental and Water Resources Engineering, School of Civil Engineering, Vellore Institute of Technology, Vellore, 632014, India.
| | - Vignesh Rajkumar Lakshmanan
- Department of Environmental and Water Resources Engineering, School of Civil Engineering, Vellore Institute of Technology, Vellore, 632014, India.
| |
Collapse
|
7
|
Rodrigues S, Espincho F, Elliott M, Almeida C, Ramos S. Methodology optimization to quantify microplastic presence in planktonic copepods, chaetognaths and fish larvae. MethodsX 2023; 11:102466. [PMID: 37954969 PMCID: PMC10632946 DOI: 10.1016/j.mex.2023.102466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 10/27/2023] [Indexed: 11/14/2023] Open
Abstract
Two of the groups most impacted by microplastics (MPs) are zooplankton and fish larvae, either through MPs ingestion or absorption. Although there has been an increase of studies focusing on MPs ingestion by these organisms, there is still no standardized methodology for the quantification of MPs present in plankton. For example, some reagents normally used to digest plankton and recover MPs appear adversely to affect some plastic characteristics. This can potentially lead to underestimating the amount and types of MPs present in the organisms analyzed. Hence, this work aimed to optimize a methodology to quantify MPs present in plankton, namely zooplankton and fish larvae, and ensuring MPs integrity. Hence, the planktonic organism tissues were digested using 30% (v/v) H2O2 solution at different temperatures and incubation periods while preserving the integrity and polymer characteristics of 13 types of MPs. MPs' characteristics were register before and after the tests, by visual inspection and Fourier Transform Infrared Spectroscopy (FTIR) analysis, to evaluate the integrity and features of MPs. With this methodology, MPs recovery was above 85% for all types of plastic tested. The proposed methodology is a rapid protocol, with a maximum of 7 h of incubation, that ensures simultaneously the full digestion of the organism tissues and the complete preservation of all the plastic characteristics, namely color, size and polymer type.•A methodology was optimized to quantify microplastics present in zooplankton (copepods, chaetognaths and fish larvae).•Thirteen types of microplastics (fibers and fragments of different polymers) were used to test the efficiency of the methodology ensuring the maintenance of the integrity of plastics.•With this methodology, microplastic recovery was above 85% for all the types of microplastic tested and no changes in their characteristics were observed.
Collapse
Affiliation(s)
- S.M. Rodrigues
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, Matosinhos 4450-208, Portugal
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Rua de Jorge Viterbo Ferreira no 228, Porto 4050-313, Portugal
| | - F. Espincho
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, Matosinhos 4450-208, Portugal
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Rua de Jorge Viterbo Ferreira no 228, Porto 4050-313, Portugal
| | - M. Elliott
- School of Environmental Sciences, University of Hull, Hull, UK
- International Estuarine & Coastal Specialists (IECS) Ltd., Leven, UK
| | - C. Marisa R. Almeida
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, Matosinhos 4450-208, Portugal
- Chemistry and Biochemistry Department, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 687, Porto 4169-007, Portugal
| | - S. Ramos
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, Matosinhos 4450-208, Portugal
- Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, rua do Campo Alegre, s/n, Porto 4169– 007, Portugal
| |
Collapse
|
8
|
Zhao J, Ruan Y, Zheng Z, Li Y, Sohail M, Hu F, Ling J, Zhang L. Gold nanoparticles-anchored peptides enable precise colorimetric estimation of microplastics. iScience 2023; 26:106823. [PMID: 37250792 PMCID: PMC10212970 DOI: 10.1016/j.isci.2023.106823] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/12/2023] [Accepted: 04/24/2023] [Indexed: 05/31/2023] Open
Abstract
Microplastics (MPs, particle size < 5 mm) are an emerging contaminant in aquatic environment, which have attracted increasing attention worldwide. In this study, a colorimetric method for MPs detection was developed based on gold nanoparticles (AuNPs)-anchored peptides (LCI or TA2), which are able to specifically recognize and adhere to polypropylene (PP) or polystyrene (PS). The AuNPs-anchored peptides accumulated on the surface of MPs, rendering a color change from red to gray-blue and transforming the surface plasmon absorption intensity and wavelength. The designed method presented high selectivity, stability, and reproducibility, with a detection range of 2.5-15 μg/mL. The results demonstrated that the developed approach will be valuable in the precise, facile, and cost-effective estimation of MPs in different matrices, regulating the control over MPs pollution and its hazardous impact on health and ecosystems.
Collapse
Affiliation(s)
- Jindi Zhao
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210046, China
| | - Yongqiang Ruan
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210046, China
| | - Zhe Zheng
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210046, China
| | - Yunhan Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210046, China
| | - Muhammad Sohail
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210046, China
| | - Fanghui Hu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210046, China
| | - Jiahuan Ling
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210046, China
| | - Lihui Zhang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210046, China
| |
Collapse
|
9
|
Real-time, Economical Identification of Microplastics Using Impedance-based Interdigital Array Microelectrodes and k-Nearest Neighbor Model. BIOTECHNOL BIOPROC E 2022. [DOI: 10.1007/s12257-022-0262-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
10
|
Maisto M, Ranauda MA, Zuzolo D, Tartaglia M, Postiglione A, Prigioniero A, Falzarano A, Scarano P, Sciarrillo R, Guarino C. Influence of sediment texture on HDPE microplastics recovery by density separation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 317:115363. [PMID: 35642821 DOI: 10.1016/j.jenvman.2022.115363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 05/04/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
Microplastics (MPs) are an emerging environmental pollutant, threatening marine and terrestrial ecosystems. Because of their properties and their widely varying size (5mm-0.1 μm), it is still difficult to define a valid and efficient method for extracting MPs from solid matrices. Among the several methods proposed, density separation is the most practical and cost-effective one. Progress is still ongoing towards a deeper understanding of the advantages and limitations related to the application of density separation for MPs extraction, the recovery yields and the factors that may influence it. In this context, we introduce the following work, which provides an early-stage insight into how the sediment texture may influence the efficiency of this extraction method, and how parameters, such as sedimentation time and extraction cycles, can be modified to always achieve the best recovery. Our focus has been directed on evaluating the extraction efficiency of HDPE MPs by density separation using NaCl, from three types of sediment: sandy (SS), sandy loam (SLS) and sandy-clay loam (SCLS). We investigated the impact of sedimentation time (1, 6, 12, 24 h) and extraction cycles (3 cycles for each sedimentation time) on MPs recovery. Finally, we determined the minimum amount of MPs (MPs g/g sediment) below which it is not possible to quantify MPs with the method used. The results have shown that the recovery efficiency of MPs from sediment is structure dependent. The highest recoveries are reached after a settling time of 1 and 6 h. Furthermore, for samples with minimum clay content (SS), only one extraction cycle is needed, whereas two extraction cycles are required for SLS and SCLS. The outcomes about the detection limit (LOD) of the method, showed the existence of an interaction MPs-clay/sediment, which allowed us to understand how far this extraction method is suitable in field, thus defining the minimum grade of MPs pollution (MPs g/g sediment) below which this method is no longer capable to extract MPs from contaminated samples.
Collapse
Affiliation(s)
- Maria Maisto
- Department of Science and Technology, University of Sannio, Via de Sanctis Snc, 82100, Benevento, Italy
| | - Maria Antonietta Ranauda
- Department of Science and Technology, University of Sannio, Via de Sanctis Snc, 82100, Benevento, Italy
| | - Daniela Zuzolo
- Department of Science and Technology, University of Sannio, Via de Sanctis Snc, 82100, Benevento, Italy.
| | - Maria Tartaglia
- Department of Science and Technology, University of Sannio, Via de Sanctis Snc, 82100, Benevento, Italy
| | - Alessia Postiglione
- Department of Science and Technology, University of Sannio, Via de Sanctis Snc, 82100, Benevento, Italy
| | - Antonello Prigioniero
- Department of Science and Technology, University of Sannio, Via de Sanctis Snc, 82100, Benevento, Italy
| | - Alessandra Falzarano
- Department of Science and Technology, University of Sannio, Via de Sanctis Snc, 82100, Benevento, Italy
| | - Pierpaolo Scarano
- Department of Science and Technology, University of Sannio, Via de Sanctis Snc, 82100, Benevento, Italy
| | - Rosaria Sciarrillo
- Department of Science and Technology, University of Sannio, Via de Sanctis Snc, 82100, Benevento, Italy
| | - Carmine Guarino
- Department of Science and Technology, University of Sannio, Via de Sanctis Snc, 82100, Benevento, Italy
| |
Collapse
|
11
|
Optimization of an Analytical Protocol for the Extraction of Microplastics from Seafood Samples with Different Levels of Fat. Molecules 2022; 27:molecules27165172. [PMID: 36014410 PMCID: PMC9414645 DOI: 10.3390/molecules27165172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 11/17/2022] Open
Abstract
Marine organisms are affected by the ubiquitous occurrence of microplastics (MPs) in the environment. Several protocols have been described to extract and quantify MPs in seafood, although their complex matrices, with high level of fat, can compromise the efficiency of MPs extraction. To solve this issue, the present study aimed to develop a detailed methodology suitable to process seafood samples with different levels of fat, namely fish and molluscs, from fresh and canned sources, including the immersive liquids from the cans. Sample digestion was tested using different solutions (10% KOH, 30% H2O2), temperatures (40 °C, 65 °C) and incubation times (24, 48, 72 h). For fat removal, three detergents (two laboratory surfactants and a commercial dish detergent) and 96% ethanol were tested, as well as the manual separation of fat. The methodology optimized in this study combined a digestion with 30% H2O2 at 65 °C, during 24 to 48 h, with a manual separation of the fat remaining after the digestion. All steps from the present methodology were tested in six types of polymers (PE-LD, PET, PE, AC, PS, and lycra), to investigate if these procedures altered the integrity of MPs. Results showed that the optimized methodology will allow for the efficient processing of complex seafood samples with different fat levels, without compromising MPs integrity (recoveries rate higher than 89% for all the polymers tested).
Collapse
|
12
|
Polycyclic Aromatic Hydrocarbons and Polychlorinated Biphenyls in Seawater, Sediment and Biota of Neritic Ecosystems: Occurrence and Partition Study in Southern Ligurian Sea. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12052564] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The Mediterranean Sea is subjected to a high anthropic pressure, which determines direct or indirect discharges of persistent organic pollutants deriving from intensive industrial activities. These compounds could easily enter and contaminate the whole marine compartment, with possible transfers (and contamination) among water, sediment and biota. Based on the above-mentioned assumptions, in this work we studied the presence of 16 polycyclic aromatic hydrocarbons (PAHs) and 14 dioxin and non-dioxin-like polychlorinated biphenyls (PCBs) in the neritic protected marine area of the Southern Ligurian Sea, affected by the impact of human activities. The study was focused on the possible partition of micropollutants within seawater, sediment and zooplankton. Results showed that both seasonal and anthropic causes strongly affect contaminant transfer behaviors, with summertime periods more impacted by PAH and PCB contamination. Regarding the PAH contamination, low molecular weight congeners were mainly detected in the target matrices, revealing concentrations up to 1 µg/L in seawater (anthracene), 250 µg/Kg in sediments (benzo[b]fluoranthene) and 2.3 mg/Kg in carnivorous copepods. Concerning PCBs, only few congeners were detected in the matrices studied. To better understand the occurrence of preferential bioaccumulation pathways in zooplankton, partition studies were also performed in several taxa (hyperbenthic Isopoda, holoplanktonic crustacean copepods and ichthyoplankton) through the calculation of BAF values, observing that both living and feeding habits could influence the bioaccumulation process.
Collapse
|
13
|
Kwon W, Kim D, Kim HY, Jeong SW, Lee SG, Kim HC, Lee YJ, Kwon MK, Hwang JS, Han JE, Park JK, Lee SJ, Choi SK. Microglial phagocytosis of polystyrene microplastics results in immune alteration and apoptosis in vitro and in vivo. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 807:150817. [PMID: 34627918 DOI: 10.1016/j.scitotenv.2021.150817] [Citation(s) in RCA: 64] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 09/18/2021] [Accepted: 10/01/2021] [Indexed: 06/13/2023]
Abstract
The remarkable increase in plastic usage and widespread microplastic (MP) pollution has emerged as a substantial concern today. Many recent studies have revealed MPs as potentially hazardous substances in mammals. Despite several reports on the impact of small MPs in the brain and behaviors in aquatic animals, it is still unclear how small MPs affect the brain and its underlying cellular physiology in terrestrial animals. In this study, we investigated the accumulation of polystyrene MPs (PS-MPs) in mouse brain after oral treatment using three types of fluorescent PS-MPs of different sizes (0.2,2 and 10 μm). We found that PS-MPs were deposited in microglial cells of the brain. Following differential treatment of PS-MPs in human microglial HMC-3 cells, we identified changes in cellular morphology, immune responses, and microglial apoptosis induced by phagocytosis of 0.2 and 2 μm PS-MPs. By analyzing the PS-MP-treated HMC-3 cell transcriptome, we showed that PS-MPs treatment altered the expression of clusters of immune response genes, immunoglobulins, and several related microRNAs. In addition, we confirmed alterations in microglial differentiation marker expression with the activation of NF-κB, pro-inflammatory cytokines and apoptotic markers in PS-MP-treated human microglial cells and in mouse brain. Our findings suggest a potential risk of small PS-MPs in microglial immune activation, which leads to microglial apoptosis in murine and human brains.
Collapse
Affiliation(s)
- Wookbong Kwon
- Division of Biotechnology, DGIST, Daegu, Republic of Korea; Core Protein Resources Center, DGIST, Daegu, Republic of Korea
| | - Daehwan Kim
- Division of Biotechnology, DGIST, Daegu, Republic of Korea; Core Protein Resources Center, DGIST, Daegu, Republic of Korea
| | - Hee-Yeon Kim
- Core Protein Resources Center, DGIST, Daegu, Republic of Korea; College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Sang Won Jeong
- Division of Biotechnology, DGIST, Daegu, Republic of Korea
| | - Se-Guen Lee
- Division of Biotechnology, DGIST, Daegu, Republic of Korea
| | - Hyun-Chul Kim
- Division of Biotechnology, DGIST, Daegu, Republic of Korea
| | - Young-Jae Lee
- Division of Biotechnology, DGIST, Daegu, Republic of Korea
| | - Mi Kyung Kwon
- Division of Biotechnology, DGIST, Daegu, Republic of Korea
| | | | - Jee Eun Han
- College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Jin-Kyu Park
- College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Sung-Jun Lee
- Division of Biotechnology, DGIST, Daegu, Republic of Korea.
| | - Seong-Kyoon Choi
- Division of Biotechnology, DGIST, Daegu, Republic of Korea; Core Protein Resources Center, DGIST, Daegu, Republic of Korea.
| |
Collapse
|
14
|
Marine sediment analysis – A review of advanced approaches and practices focused on contaminants. Anal Chim Acta 2022; 1209:339640. [DOI: 10.1016/j.aca.2022.339640] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 02/18/2022] [Accepted: 02/21/2022] [Indexed: 11/17/2022]
|
15
|
Constant M, Billon G, Breton N, Alary C. Extraction of microplastics from sediment matrices: Experimental comparative analysis. JOURNAL OF HAZARDOUS MATERIALS 2021; 420:126571. [PMID: 34265648 DOI: 10.1016/j.jhazmat.2021.126571] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 07/01/2021] [Accepted: 07/02/2021] [Indexed: 06/13/2023]
Abstract
Microplastics are small (<5 mm) fragments of plastic debris that are ubiquitous in oceans and terrestrial ecosystems. Studies on microplastics in sediment and soil matrices are particularly challenging because of the need to separate the plastics from the sediments. We investigated the efficiencies of 18 combinations of six extracting solutions (ESs) (oil, water, oil-in-water, NaCl, oil-in-NaCl, and NaI) and three isolation methods (IMs) (hand stirring, centrifugation, and aeration) for fine and coarse sediments, with low and high density polymers. IMs did not affect the extraction efficiency. Except in case of oil, all ESs enabled good extraction (84 ± 17%) of light polymers (PE and PE-ABS). NaI presented the best extraction efficiency (71 ± 17%) for the densest polymers (PET, PES, and PA). For these ESs, fibers were extracted at a lower efficiency than pellets and fragments, and sediment gran size did not affect the extraction. For other ESs, mean extraction rates ranged from 5% to 48%. Overall, the extraction efficiencies were lower than those found in the literature, despite repeating the separation process three times. The collection of floating materials remained a problem, as plastics tended to adhere to the glass wall. Our work will help the comparability between previous and future monitoring results and the selection of the most suitable protocols for future studies. This work clearly demonstrates also that there is no robust protocol for extracting all types and forms of microplastics from fine sediments and that research efforts to arrive at a reliable method remain by taking account the interaction of MPs with other particles as well as the electrostatic properties of MP.
Collapse
Affiliation(s)
- Mel Constant
- Univ. Lille, Institut Mines-Télécom, Univ. Artois, Junia, ULR 4515 - LGCgE, Laboratoire de Génie Civil et géo-Environnement, F-59000 Lille, France.
| | - Gabriel Billon
- Univ. Lille, CNRS, UMR 8516 - LASIRE, Laboratoire Avancé de Spectroscopie pour les Interactions, la Réactivité et l'Environnement, F-59000 Lille, France
| | - Noémie Breton
- Univ. Lille, CNRS, UMR 8516 - LASIRE, Laboratoire Avancé de Spectroscopie pour les Interactions, la Réactivité et l'Environnement, F-59000 Lille, France
| | - Claire Alary
- Univ. Lille, Institut Mines-Télécom, Univ. Artois, Junia, ULR 4515 - LGCgE, Laboratoire de Génie Civil et géo-Environnement, F-59000 Lille, France
| |
Collapse
|