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Tunens G, Einbergs E, Laganovska K, Zolotarjovs A, Vilks K, Skuja L, Smits K. Optical fiber-based open source low cost portable spectrometer system. HardwareX 2024; 18:e00530. [PMID: 38681502 PMCID: PMC11046214 DOI: 10.1016/j.ohx.2024.e00530] [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] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 04/09/2024] [Accepted: 04/13/2024] [Indexed: 05/01/2024]
Abstract
This article explores the development of a small, compact fiber-based spectrometer system designed to overcome the limitations of standard spectrometers, such as the high cost and restricted accessibility. Operated by a Raspberry Pi, the fiber-based spectrometer system uses the increased computing power to provide versatile modes of operation and powerful data processing, while maintaining a small size. Specifically crafted for basic chemistry and biology lab setups, where fibers allow measurements in different conditions, and customization enables fluorescence, light scattering, and absorption measurements. The system is adaptable and versatile, offering ease of modification and adaptation for a broad range of applications.
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Affiliation(s)
- Gatis Tunens
- Institute of Solid State Physics, University of Latvia, Kengaraga Str. 8, Riga LV-1063, Latvia
| | - Ernests Einbergs
- Institute of Solid State Physics, University of Latvia, Kengaraga Str. 8, Riga LV-1063, Latvia
| | - Katrina Laganovska
- Institute of Solid State Physics, University of Latvia, Kengaraga Str. 8, Riga LV-1063, Latvia
| | - Aleksejs Zolotarjovs
- Institute of Solid State Physics, University of Latvia, Kengaraga Str. 8, Riga LV-1063, Latvia
| | - Karlis Vilks
- Institute of Solid State Physics, University of Latvia, Kengaraga Str. 8, Riga LV-1063, Latvia
| | - Linards Skuja
- Institute of Solid State Physics, University of Latvia, Kengaraga Str. 8, Riga LV-1063, Latvia
| | - Krisjanis Smits
- Institute of Solid State Physics, University of Latvia, Kengaraga Str. 8, Riga LV-1063, Latvia
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2
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Fellah C, Lesaint B. Comparative study of ion milling techniques for the preparation of ceramic fibers in transmission electron microscopy. Micron 2024; 180:103612. [PMID: 38432078 DOI: 10.1016/j.micron.2024.103612] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 02/18/2024] [Accepted: 02/18/2024] [Indexed: 03/05/2024]
Abstract
Sample preparation, essential to any analysis, remains an under-documented step. Preparation methods for transmission electron microscopy (TEM) are complex and lead to artifacts that need to be identified to avoid wrong conclusions about the sample's microstructure. Ion milling techniques are increasingly becoming the reference techniques to prepare thin foils. The possibilities of different ion beam processes for milling samples will be shown and compared, using ceramic carbon/carbide fibers, a material applied in many industrial applications, as a test specimen. This overview of ion milling preparation techniques will enable us to identify the advantages, disadvantages and parameters in order to best prepare these thin samples. It will be carried out for the community, and will also highlight a new preparation method for ceramic fibers to minimize the artefacts inherent in these techniques.
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Affiliation(s)
- Clémentine Fellah
- Universite Claude Bernard Lyon1, LGL-TPE, UMR 5276, ENS Lyon, CNRS, UJM, Villeurbanne 69100, France.
| | - Bérangère Lesaint
- Université de Lyon, INSA-Lyon, UMR CNRS 5510 MATEIS, Villeurbanne Cedex, France
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3
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Oliveira de Miranda C, Lelis Leal de Souza JJ, Gonçalves Reynaud Schaefer CE, Huerta Lwanga E, Nadal Junqueira Villela F. Short-term impacts of polyethylene and polyacrylonitrile microplastics on soil physicochemical properties and microbial activity of a marine terrace environment in maritime Antarctica. Environ Pollut 2024; 347:123791. [PMID: 38490529 DOI: 10.1016/j.envpol.2024.123791] [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: 12/14/2023] [Revised: 02/23/2024] [Accepted: 03/12/2024] [Indexed: 03/17/2024]
Abstract
Evidence of microplastic (MP) pollution in Antarctic terrestrial environments reinforces concerns about its potential impacts on soil, which plays a major role in ecological processes at ice-free areas. We investigated the effects of two common MP types on soil physicochemical properties and microbial responses of a marine terrace from Fildes Peninsula (King George Island, Antarctica). Soils were treated with polyethylene (PE) fragments and polyacrylonitrile (PAN) fibers at environmentally relevant doses (from 0.001% to 1% w w-1), in addition to a control treatment (0% w w-1), for 22 days in a pot incubation experiment under natural field conditions. The short-term impacts of MPs on soil physical, chemical and microbial attributes seem interrelated and were affected by both MP dose and type. The highest PAN fiber dose (0.1%) increased macro and total porosity, but decreased soil bulk density compared to control, whereas PE fragments treatments did not affect soil porosity. Soil respiration increased with increasing doses of PAN fibers reflecting impacts on physical properties. Both types of MPs increased microbial activity (fluorescein diacetate hydrolysis), decreased the cation exchange capacity but, especially PE fragments, increased Na+ saturation. The highest dose of PAN fibers and PE fragments increased total nitrogen and total organic carbon, respectively, and both decreased the soil pH. We discussed potential causes for our findings in this initial assessment and addressed the need for further research considering the complexity of environmental factors to better understand the cumulative impacts of MP pollution in Antarctic soil environments.
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Affiliation(s)
- Caik Oliveira de Miranda
- Departamento de Solos, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, Campus Universitário, 36570-900, Viçosa, Minas Gerais, Brazil; Soil Physics and Land Management Group, Wageningen University & Research, Droevendaalsesteeg 4, 6708PB, Wageningen, the Netherlands.
| | - José João Lelis Leal de Souza
- Departamento de Solos, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, s/n, Campus Universitário, 36570-900, Viçosa, Minas Gerais, Brazil
| | | | - Esperanza Huerta Lwanga
- Soil Physics and Land Management Group, Wageningen University & Research, Droevendaalsesteeg 4, 6708PB, Wageningen, the Netherlands
| | - Fernando Nadal Junqueira Villela
- Laboratório de Pedologia, Faculdade de Filosofia, Letras e Ciências Humanas, Departamento de Geografia, Universidade de São Paulo, Avenida Professor Lineu Prestes, 338, Cidade Universitária, São Paulo, SP, 05508-000, Brazil
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4
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Souza MFD, Akyol Ç, Willems B, Huizinga A, van Calker S, Van Dael M, De Meyer A, Guisson R, Michels E, Meers E. From grass to gas and beyond: Anaerobic digestion as a key enabling technology for a residual grass biorefinery. Waste Manag 2024; 182:1-10. [PMID: 38615638 DOI: 10.1016/j.wasman.2024.04.018] [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: 01/08/2024] [Revised: 03/07/2024] [Accepted: 04/09/2024] [Indexed: 04/16/2024]
Abstract
Roadside grass clippings hold potential as a sustainable source of bioenergy as they do not compete with crops for land use, and are only partially utilized for low-value applications. In this study, we proposed using roadside grass as a sole feedstock for anaerobic digestion (AD) in three different settings, and assessed the potential of producing biomaterials and fertilizers from grass-based digestate. Wet continuous digestion at pilot scale and dry batch digestion at pilot and large scales resulted in biogas yields up to 700 Nm3.t-1 DOM with a methane content of 49-55 %. Despite promising results, wet AD had operational problems such as clogging and poor mixing; once upscaled, the dry digestion initially also presented an operational problem with acidification, which was overcome by the second trial. Digested grass fibers from the pilot dry AD were processed into biomaterials and performed similarly or better than the undigested fibers, while around 20 % performance reduction was observed when compared to reference wood fibers. A mass balance indicated reduced fiber recovery when higher biogas production was obtained. The liquid fraction from the pilot dry AD was characterized for its nutrient content and used as a biofertilizer in another study. In contrast, the leachate collected from the large-scale dry AD had a low nitrogen content and high chloride content that could hinder its further use. Finally, a regional market analysis was conducted showing that the biocomposites produced with the available grass fibers could substitute at least half of the current European market based on our results.
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Affiliation(s)
- Marcella Fernandes de Souza
- Lab for Bioresource Recovery, Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, 9000 Gent, Belgium.
| | - Çağrı Akyol
- Lab for Bioresource Recovery, Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, 9000 Gent, Belgium
| | | | - Alex Huizinga
- Millvision, Ramgatseweg 11i, 4941 VN Raamsdonksveer, the Netherlands
| | - Sander van Calker
- Millvision, Ramgatseweg 11i, 4941 VN Raamsdonksveer, the Netherlands
| | | | | | | | - Evi Michels
- Lab for Bioresource Recovery, Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, 9000 Gent, Belgium
| | - Erik Meers
- Lab for Bioresource Recovery, Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, 9000 Gent, Belgium
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Joshi K, Rabari V, Patel H, Patel K, Rakib MRJ, Trivedi J, Paray BA, Walker TR, Jakariya M. Microplastic contamination in filter-feeding oyster Saccostrea cuccullata: Novel insights in a marine ecosystem. Mar Pollut Bull 2024; 202:116326. [PMID: 38583217 DOI: 10.1016/j.marpolbul.2024.116326] [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: 01/24/2024] [Revised: 03/28/2024] [Accepted: 03/29/2024] [Indexed: 04/09/2024]
Abstract
Microplastic (MP) pollution has become a pressing global concern. Oysters are well-known filter feeders who ingest food by filtering microscopic particles suspended in the surrounding water. Along with organic matter, filter-feeding also causes accidental ingestion of MP by oysters. Hence, the aim of the current investigation is to understand the MP contamination in filter-feeding oysters. A total of 500 specimens of oyster Saccostrea cuccullata collected from the intertidal zone of five sampling locations on the Gujarat coast, India. Specimens underwent analysis following established protocols. Each specimen was found to exhibit MP contamination, showing an abundance of 2.72 ± 1.98 MPs/g. A negative relationship was found between shell length and MP abundance. Predominantly, fibers were documented across all study sites. Black, blue, and red-colored MPs with 1-2 mm sizes were most dominant. MP polymer composition was identified as polyethylene terephthalate and polypropylene. Findings provide baseline information on levels of MPs contamination, which can be used to monitor future effects of MP pollution.
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Affiliation(s)
- Komal Joshi
- Animal Taxonomy and Ecology Laboratory, Department of Life Sciences, Hemchandracharya North Gujarat University, Patan 384265, Gujarat, India
| | - Vasantkumar Rabari
- Animal Taxonomy and Ecology Laboratory, Department of Life Sciences, Hemchandracharya North Gujarat University, Patan 384265, Gujarat, India
| | - Heris Patel
- Animal Taxonomy and Ecology Laboratory, Department of Life Sciences, Hemchandracharya North Gujarat University, Patan 384265, Gujarat, India
| | - Krupal Patel
- Marine Biodiversity and Ecology Laboratory, Department of Zoology, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara 390002, Gujarat, India
| | - Md Refat Jahan Rakib
- Department of Environmental Science and Management, North South University, Bashundhara, Dhaka 1229, Bangladesh.
| | - Jigneshkumar Trivedi
- Animal Taxonomy and Ecology Laboratory, Department of Life Sciences, Hemchandracharya North Gujarat University, Patan 384265, Gujarat, India..
| | - Bilal Ahamad Paray
- Department of Zoology, College of Science, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
| | - Tony R Walker
- School for Resource and Environmental Studies, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Md Jakariya
- Department of Environmental Science and Management, North South University, Bashundhara, Dhaka 1229, Bangladesh
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6
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Klasios N, Birch A, Murillo AM, Tseng M. Warming temperatures exacerbate effects of microplastics in a widespread zooplankton species. Environ Pollut 2024; 349:123918. [PMID: 38574946 DOI: 10.1016/j.envpol.2024.123918] [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: 01/31/2024] [Revised: 03/15/2024] [Accepted: 04/01/2024] [Indexed: 04/06/2024]
Abstract
The emergence of microplastics as a global contaminant of concern has coincided with climate change induced temperature warming in aquatic ecosystems. Warmer temperatures have been previously demonstrated to increase the toxicity of certain contaminants, but it is currently unclear if microplastics are similarly affected by temperature. As aquatic organisms simultaneously face microplastic pollution and both increasing and variable temperatures, understanding how temperature affects microplastic toxicity is pertinent in this era of human-induced global change. In this study, we investigate the effects of environmentally relevant microplastic exposure to Daphnia pulex survival, reproduction, and growth at three different temperatures. To simulate an environmentally relevant exposure scenario, we created microplastics with physicochemical characteristics often detected in nature, and exposed organisms to concentrations close to values reported in inland waters and 1-2 orders of magnitude higher. The three temperatures tested in this experiment included 12 °C, 20 °C, and 24 °C, to simulate cool/springtime, current, and warming scenarios. We found the highest concentration of microplastics significantly impacted survival and total offspring compared to the control at 20 °C and 24 °C, but not at 12 °C. The adverse effect of high microplastic concentrations on total offspring at warmer temperatures was driven by the high mortality of the juveniles. We observed no effect of microplastics on time to first reproduction or average growth rate at any temperature. Warmer temperatures exacerbated microplastic toxicity, although only for concentrations of microplastics not currently observed in nature, but these concentrations are possible in pollution hotspots, through pulses pollution events or future worsening environmental contamination. The results of our study illustrate the continued need to further investigate climate change related co-stressors such as warming temperatures in microplastic and pollution ecology, through environmentally realistic exposure scenarios.
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Affiliation(s)
- Natasha Klasios
- University of British Columbia, Department of Zoology, 2212 Main Mall, Vancouver, BC, V6T 1Z4, Canada.
| | - Abigail Birch
- University of British Columbia, Department of Zoology, 2212 Main Mall, Vancouver, BC, V6T 1Z4, Canada
| | - Aurelio Morales Murillo
- University of British Columbia, Department of Pharmaceutical Sciences, 2405 Wesbrook Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Michelle Tseng
- University of British Columbia, Department of Zoology, 2212 Main Mall, Vancouver, BC, V6T 1Z4, Canada; University of British Columbia, Department of Botany, 2212 Main Mall, Vancouver, BC, V6T 1Z4, Canada
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7
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Pantoja JCD, de Oliveira AEP, Ferreira MAP, da Costa LP, Nunes ZMP, da Rocha RM. First register of microplastic contamination in oysters (Crassostrea gasar) farmed in Amazonian estuaries. Mar Pollut Bull 2024; 201:116182. [PMID: 38382321 DOI: 10.1016/j.marpolbul.2024.116182] [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: 09/09/2023] [Revised: 02/12/2024] [Accepted: 02/18/2024] [Indexed: 02/23/2024]
Abstract
The present study investigated the contamination of oysters farmed in Amazonian estuaries by microplastics (MPs). A total of 120 adult oysters (Crassostrea gasar) were collected from four sites along the Mangrove Coast of Pará/Brazil: S1, S2, S3 and S4, with 30 oyster for each. Overall, 58.33 % of the oyster samples contained microplastics, with mean concentrations of 0.23 MPs/g and 1.9 MPs/ind. The concentration of microplastics varied among the four sites, where S1 and S3 had the highest values while S4 had the lowest. PA fibers were the majority of particles (91 %), followed by PS fragments (9 %). The hepatopancreas and the gonad concentrated more microplastics than the rest of the body. As an important species for aquaculture in Amazon, we recommend additional regulation to reduce human exposure to microplastics, such as the installation of depuration facilities and constant monitoring of the contamination of oysters from farms in the region.
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Affiliation(s)
- Juliana Caroline Dias Pantoja
- Laboratory of Cellular Ultrastructure, Institute of Biological Sciences, Sala 328, Federal University of Pará, Av. Augusto Corrêa n°. 01, Guamá, Belem, Pará 66075-900, Brazil.
| | - Antonio Elivelton Paiva de Oliveira
- Laboratory of Developmental Biology and Immunohistochemistry, Institute of Biological Sciences, Sala 330, Federal University of Pará, Av. Augusto Corrêa n°. 01, Guamá, Belém, Pará 66075-900, Brazil
| | - Maria Auxiliadora Pantoja Ferreira
- Laboratory of Developmental Biology and Immunohistochemistry, Institute of Biological Sciences, Sala 330, Federal University of Pará, Av. Augusto Corrêa n°. 01, Guamá, Belém, Pará 66075-900, Brazil
| | - Luiz Pereira da Costa
- Laboratório de Pré-Embalados e Metrologia Científica - COPREM/INMETRO, Universidade Federal do Sergipe - UFS, Brazil
| | - Zélia Maria Pimentel Nunes
- Institute for Coastal Studies, Federal University of Pará, Alameda Leandro Ribeiro - Aldeia, Bragança, PA 68600-000, Brazil
| | - Rossineide Martins da Rocha
- Laboratory of Cellular Ultrastructure, Institute of Biological Sciences, Sala 328, Federal University of Pará, Av. Augusto Corrêa n°. 01, Guamá, Belem, Pará 66075-900, Brazil
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Adiraju A, Al-Hamry A, Jalasutram A, Wang J, Kanoun O. Multifaceted experiments and photothermal simulations based analysis of laser induced graphene and its fibers. Discov Nano 2024; 19:59. [PMID: 38548950 PMCID: PMC10978564 DOI: 10.1186/s11671-024-03999-6] [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] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 03/17/2024] [Indexed: 04/01/2024]
Abstract
The interaction of CO2 laser with polyimide results in the formation of laser-induced graphene (LIG) and other morphological transitions based on laser parameters, such as Laser-induced fibers (LIF) on the surface. However, a fundamental investigation of LIF, its properties and potential have not been explored until now. We aim therefore to provide novel insights into the LIF by characterization of its structural, electrical, electrochemical, and mechanical properties. Four different morphologies were identified depending on the laser parameters and the temperature required for their formation were quantified by FEM model. Minimum temperatures of 1800 K were required to form LIG and around 2600 to 5000 K to form LIF. High heterogeneity of the LIF along thickness due to temperature gradients, and the existence of sheet structures underneath the fibers were identified. Due to the loosely bound nature of fibers, LIF dispersion was prepared by ultrasonication to functionalize the carbon electrode for electrochemical characterization. The modification with LIF on the electrodes enhanced the electrochemical response of the electrode towards standard redox couple which confirmed the conductive nature of the fibers. This work provides a solid basis for the versatile tuning of the behavior and properties of LIF for potential applications.
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Affiliation(s)
- Anurag Adiraju
- Chair Measurement and Sensor Technology, Department of Electrical Engineering and Information Technology, Chemnitz University of Technology, 09107, Chemnitz, Germany.
| | - Ammar Al-Hamry
- Chair Measurement and Sensor Technology, Department of Electrical Engineering and Information Technology, Chemnitz University of Technology, 09107, Chemnitz, Germany
| | - Aditya Jalasutram
- Chair Measurement and Sensor Technology, Department of Electrical Engineering and Information Technology, Chemnitz University of Technology, 09107, Chemnitz, Germany
| | - Junfei Wang
- Chair Measurement and Sensor Technology, Department of Electrical Engineering and Information Technology, Chemnitz University of Technology, 09107, Chemnitz, Germany
| | - Olfa Kanoun
- Chair Measurement and Sensor Technology, Department of Electrical Engineering and Information Technology, Chemnitz University of Technology, 09107, Chemnitz, Germany
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Valencia-Castañeda G, Medina-López JA, Frías-Espericueta MG, Páez-Osuna F. Farmed stage (age)-dependent accumulation and size of microplastics in Litopenaeus vannamei shrimp reared in a super-intensive controlled system. Sci Total Environ 2024; 918:170575. [PMID: 38309338 DOI: 10.1016/j.scitotenv.2024.170575] [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: 06/08/2023] [Revised: 01/06/2024] [Accepted: 01/28/2024] [Indexed: 02/05/2024]
Abstract
The abundance of microplastics (MPs) in the gastrointestinal tract (GT), gills (GI), and exoskeleton (EX) of Litopenaeus vannamei shrimp cultured in a commercial indoor super-intensive controlled (ISCO) system was investigated. Shrimp of 25 days (postlarvae; PL25), and one, three, five, and seven culture months were analyzed. The postlarvae PL25 MP abundance per individual and gram of PL (wet weight) was 0.2 ± 0.0 MPs and 3.5 ± 0.5 MPs/g. For L. vannamei juveniles at one, three, five, and seven culture months, the MP abundance per juvenile shrimp was 10.0 ± 0.3, 27.2 ± 1.6, 32.3 ± 3.1, and 40.3 ± 3.6 MPs/individual, respectively (expressed in MPs/g of tissue were 1.6 ± 0.1, 2.0 ± 0.2, 2.0 ± 0.3 and 1.5 ± 0.2, respectively). Fibers were the most common MP type in all shrimp age classes (42.1-68.7 %), and the predominant color was transparent (46.1-65.0 %). The MP size in all shrimp stages ranged between 15 and 4686 μm. In general, the predominant polymers identified were PE (37.4 %), NY (21.1 %), and PET (18.5 %). The MP variability through the culture cycle showed that as the age of shrimp increased, and the culture advanced the MP abundance and size also augmented. Conversely, there is a higher MP abundance in L. vannamei cultured in ISCO systems compared to shrimp cultured in traditional semi-intensive and intensive ponds and those from wild environments. The latter is probably due to the extensive use of plasticized materials (geomembrane and greenhouse installations) and their degradation, which cause a greater MP exposure to shrimp. The estimated oral MP intake by ISCO shrimp consumption was 647 MPs/capita/year, which can be 178 % more than from wild shrimp.
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Affiliation(s)
- Gladys Valencia-Castañeda
- Unidad Académica Mazatlán, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Mexico
| | - Jesús A Medina-López
- Facultad de Ciencias del Mar, Universidad Autónoma de Sinaloa, Paseo Claussen s/n, Mazatlán 82000, Sinaloa, Mexico
| | - Martín G Frías-Espericueta
- Facultad de Ciencias del Mar, Universidad Autónoma de Sinaloa, Paseo Claussen s/n, Mazatlán 82000, Sinaloa, Mexico
| | - Federico Páez-Osuna
- Unidad Académica Mazatlán, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Mexico; Miembro de El Colegio de Sinaloa, Sinaloa, Mexico.
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Imbulana S, Tanaka S, Moriya A, Oluwoye I. Inter-event and intra-event dynamics of microplastic emissions in an urban river during rainfall episodes. Environ Res 2024; 243:117882. [PMID: 38070853 DOI: 10.1016/j.envres.2023.117882] [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: 09/26/2023] [Revised: 11/14/2023] [Accepted: 12/04/2023] [Indexed: 02/06/2024]
Abstract
Urban rivers represent the major conduits for land-sourced microplastics in the global oceans, yet the real-time dynamics of their emissions in rivers during rainfall (and runoff) events are poorly understood. Herein, we report the results of high-frequency sampling of microplastic particles (MPs) and fibers (MPFs) in the surface water of an urban river in Japan over the course of three rainfall events (i.e., light, moderate, and heavy rainfalls). The event mean concentrations (EMCs) of MPs amounted to 35,000 items/m3, 929,000 items/m3, and 331,000 items/m3; and the corresponding total loads were 0.5 kg, 19.8 kg, and 35.0 kg for light, moderate and heavy rainfalls, respectively. The inter-event total loads of MPs correlate well with the total rainfall, while the concentrations were linked with the number of antecedent dry days. The dynamic trends show that <2000 μm MPs displayed first flush effects during light to moderate rainfall events (>50% mass discharged with the initial 20-40% of flow). Small-sized MPs (10-40 μm) mobilized rapidly at lower rainfall intensities, whereas MPs over 2000 μm discharged immediately after the peak rainfall intensity. Moreover, <70 μm MPs depicted a surge following heavy rainfall events due to turbulent flow conditions reverting the deposited MPs into suspension. Overall, the three events increased the loads by 4-110 folds, and EMCs by 10-350 folds compared to the concentrations during dry weather while portraying a significant impact on 300-1000 μm MPs. The dynamics of MPs were correlated with those of suspended solids in river water, and the characteristics were comparable to the same of road dust sampled in Japan. Although the dynamic trends between MPs and MPFs in river water were comparable, MPFs were relatively less impacted by rain, likely due to the intervention of separate sewer systems in the study area.
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Affiliation(s)
- Sachithra Imbulana
- Environmentally-friendly Industries for Sustainable Development Laboratory, Graduate School of Global Environmental Studies, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto, 606-8501, Japan.
| | - Shuhei Tanaka
- Environmentally-friendly Industries for Sustainable Development Laboratory, Graduate School of Global Environmental Studies, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Asami Moriya
- Environmentally-friendly Industries for Sustainable Development Laboratory, Graduate School of Global Environmental Studies, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Ibukun Oluwoye
- Environmentally-friendly Industries for Sustainable Development Laboratory, Graduate School of Global Environmental Studies, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto, 606-8501, Japan; Curtin Corrosion Centre, Curtin University, GPO Box U1987, Perth, WA, 6845, Australia
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11
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Tordi P, Gelli R, Ridi F, Bonini M. A bioinspired and sustainable route for the preparation of Ag-crosslinked alginate fibers decorated with silver nanoparticles. Carbohydr Polym 2024; 326:121586. [PMID: 38142067 DOI: 10.1016/j.carbpol.2023.121586] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 10/17/2023] [Accepted: 11/10/2023] [Indexed: 12/25/2023]
Abstract
Functional materials obtained through green and sustainable routes are attracting particular attention due to the need to reduce the environmental impact of the chemical industry. In this work we propose a bioinspired approach for the preparation of alginate fibers containing silver nanoparticles (AgNPs), to be used for antimicrobial purposes. We demonstrate that filiform polymeric structures with length of a few meters can be easily obtained by extruding an alginate solution in an aqueous Ag+-containing bath (i.e. wet spinning) and that treating the fibers with freshly-squeezed lemon juice leads to the formation of AgNPs homogeneously distributed within the polymeric network. Using mixtures of ascorbic and citric acid to mimic lemon juice composition we highlight the influence of the aforementioned molecules on the nanoparticles formation process as well as on the properties of the fibers. Varying the amount of citric and ascorbic acid used for the treatment allows to finely tune the thermal, morphological and water absorption properties of the fibers. This evidence, along with the possibility to easily monitor the preparation through FT-IR spectroscopy, endows the fibers with a high application potential in several fields such as wound healing, water/air purification and agriculture.
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Affiliation(s)
- Pietro Tordi
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy; Institut de Science et d'Ingeniérie Supramoléculaires (ISIS) - Université de Strasbourg and CNRS, 8 Alleé Gaspard Monge, F-67000 Strasbourg, France
| | - Rita Gelli
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy
| | - Francesca Ridi
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy
| | - Massimo Bonini
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy.
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12
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Marcus L, Mardones JI, Rioseco JT, Pinochet J, Montes C, Corredor-Acosta A, Moreno-Meynard P, Garcés-Vargas J, Jorquera E, Iriarte JL, Urbina MA. Evidence of plastic pollution from offshore oceanic sources in southern Chilean Patagonian fjords. Sci Total Environ 2024; 911:168706. [PMID: 37992835 DOI: 10.1016/j.scitotenv.2023.168706] [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: 08/20/2023] [Revised: 10/26/2023] [Accepted: 11/17/2023] [Indexed: 11/24/2023]
Abstract
The Chilean Patagonian fjords are globally renowned as one of the few remaining pristine environments on Earth; however, their ecosystems are under significant threat from climatic and anthropogenic pressures. Of particular concern is the lack of research into the impact of plastic pollution on the waters and biodiversity of these fjords. In this study, the marine environment of a secluded and sparsely populated fjord system in southern Patagonia was sampled to assess microplastics in seawater, beaches, bottom sediment, and zooplankton. Microplastics were found to be widespread across the water surface of the fjord, but with low abundances of 0.01 ± 0.01 particles m-3 (mean ± SD). The presence of microplastics in sedimentary environments (e.g., beaches and bottom sediments, 15.6 ± 15.3 and 9.8 ± 24 particles kg of dry sediment-1, respectively) provided additional evidence of plastic debris accumulation within the fjord system. Furthermore, microplastics were already bioavailable to key zooplankton species of the Patagonian food web (0.01 ± 0.02 particles individual-1), suggesting bioaccumulation. A comprehensive examination of potential microplastic inputs originating from coastal runoff, coupled with distribution of water masses, suggested minimal local contribution of microplastics to the fjord, strongly indicating that plastic litter is likely entering the area through oceanic currents. The composition and type of microplastics, primarily consisting of polyester fibers (approx. 60 %), provided further support for the proposed distant origin and transportation into the fjord by oceanographic drivers. These results raise significant concern as reveal that despite a lack of nearby population, industrial or agricultural activity, remote Patagonian fjords are still impacted by plastic pollution originating from distant sources. Prioritizing monitoring efforts is crucial for effectively assessing the future trends and ecological impact of plastic pollution in these once so-called pristine ecosystems.
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Affiliation(s)
- Lara Marcus
- Facultad de Medicina y Ciencia, Universidad San Sebastián, Lago Panguipulli 1390, 5501842 Puerto Montt, Chile.
| | - Jorge I Mardones
- Centro de Estudios de Algas Nocivas (CREAN), Instituto de Fomento Pesquero (IFOP), Puerto Montt, Chile; Centro de Investigación en Recursos Naturales y Sustentabilidad (CIRENYS), Universidad Bernardo O'Higgins, Santiago, Chile
| | - Jazmin Toledo Rioseco
- Departamento de Zoología, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Chile
| | - Javier Pinochet
- Departamento de Zoología, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Chile.; Facultad de Ciencias, Universidad Católica de La Santísima Concepción, Concepción, Chile
| | - Caroline Montes
- Laboratory of Ecotoxicology and Laboratory of Marine Environmental Monitoring Research (LAPMAR), Federal University of Pará (UFPA), Belém, Pará, Brazil
| | - Andrea Corredor-Acosta
- Centro FONDAP de Investigación en Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia 5090000, Chile
| | | | - José Garcés-Vargas
- Centro FONDAP de Investigación en Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia 5090000, Chile; Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia 5090000, Chile
| | - Erika Jorquera
- Facultad de Ciencias, Universidad Católica de La Santísima Concepción, Concepción, Chile
| | - José Luis Iriarte
- Centro FONDAP de Investigación en Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia 5090000, Chile; Instituto de Acuicultura, Universidad Austral de Chile, Puerto Montt, Chile
| | - Mauricio A Urbina
- Departamento de Zoología, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Chile.; Instituto Milenio de Oceanografía (IMO), Universidad de Concepción, PO Box 1313, Concepción, Chile
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13
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Klasios N, Kim JO, Tseng M. No Effect of Realistic Concentrations of Polyester Microplastic Fibers on Freshwater Zooplankton Communities. Environ Toxicol Chem 2024; 43:418-428. [PMID: 38018737 DOI: 10.1002/etc.5797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 10/10/2023] [Accepted: 11/27/2023] [Indexed: 11/30/2023]
Abstract
Zooplankton are a conduit of energy from autotrophic phytoplankton to higher trophic levels, and they can be a primary point of entry of microplastics into the aquatic food chain. Investigating how zooplankton communities are affected by microplastic pollution is thus a key step toward understanding ecosystem-level effects of these global and ubiquitous contaminants. Although the number of studies investigating the biological effects of microplastics has grown exponentially in the last decade, the majority have used controlled laboratory experiments to quantify the impacts of microplastics on individual species. Given that all organisms live in multispecies communities in nature, we used an outdoor 1130-L mesocosm experiment to investigate the effects of microplastic exposure on natural assemblages of zooplankton. We endeavored to simulate an environmentally relevant exposure scenario by manually creating approximately 270 000 0.015 × 1- to 1.5-mm polyester fibers and inoculating mesocosms with zero, low (10 particles/L), and high (50 particles/L) concentrations. We recorded zooplankton abundance and community composition three times throughout the 12-week study. We found no effect of microplastics on zooplankton abundance, Shannon diversity, or Pielou's evenness. Nonmetric multidimensional scaling plots also revealed no effects of microplastics on zooplankton community composition. Our study provides a necessary and realistic baseline on which future studies can build. Because numerous other stressors faced by zooplankton (e.g., food limitation, eutrophication, warming temperatures, pesticides) are likely to exacerbate the effects of microplastics, we caution against concluding that polyester microfibers will always have no effect on zooplankton communities. Instead, we encourage future studies to investigate the triple threats of habitat degradation, climate warming, and microplastic pollution on zooplankton community health. Environ Toxicol Chem 2024;43:418-428. © 2023 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
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Affiliation(s)
- Natasha Klasios
- Department of Zoology, Biodiversity Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jihyun O Kim
- Department of Botany, Biodiversity Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Michelle Tseng
- Departments of Botany and Zoology, Biodiversity Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
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14
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Silva Barreto I, Pierantoni M, Nielsen LC, Hammerman M, Diaz A, Novak V, Eliasson P, Liebi M, Isaksson H. Micro- and nanostructure specific X-ray tomography reveals less matrix formation and altered collagen organization following reduced loading during Achilles tendon healing. Acta Biomater 2024; 174:245-257. [PMID: 38096959 DOI: 10.1016/j.actbio.2023.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 12/06/2023] [Accepted: 12/07/2023] [Indexed: 12/25/2023]
Abstract
Recovery of the collagen structure following Achilles tendon rupture is poor, resulting in a high risk for re-ruptures. The loading environment during healing affects the mechanical properties of the tendon, but the relation between loading regime and healing outcome remains unclear. This is partially due to our limited understanding regarding the effects of loading on the micro- and nanostructure of the healing tissue. We addressed this through a combination of synchrotron phase-contrast X-ray microtomography and small-angle X-ray scattering tensor tomography (SASTT) to visualize the 3D organization of microscale fibers and nanoscale fibrils, respectively. The effect of in vivo loading on these structures was characterized in early healing of rat Achilles tendons by comparing full activity with immobilization. Unloading resulted in structural changes that can explain the reported impaired mechanical performance. In particular, unloading led to slower tissue regeneration and maturation, with less and more disorganized collagen, as well as an increased presence of adipose tissue. This study provides the first application of SASTT on soft musculoskeletal tissues and clearly demonstrates its potential to investigate a variety of other collagenous tissues. STATEMENT OF SIGNIFICANCE: Currently our understanding of the mechanobiological effects on the recovery of the structural hierarchical organization of injured Achilles tendons is limited. We provide insight into how loading affects the healing process by using a cutting-edge approach to for the first time characterize the 3D micro- and nanostructure of the regenerating collagen. We uncovered that, during early healing, unloading results in a delayed and more disorganized regeneration of both fibers (microscale) and fibrils (nanoscale), as well as increased presence of adipose tissue. The results set the ground for the development of further specialized protocols for tendon recovery.
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Affiliation(s)
| | - Maria Pierantoni
- Department of Biomedical Engineering, Lund University, Lund, Sweden
| | - Leonard C Nielsen
- Department of Physics, Chalmers University of Technology, Gothenburg, Sweden
| | - Malin Hammerman
- Department of Biomedical Engineering, Lund University, Lund, Sweden; Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Ana Diaz
- Photon Science Division, Paul Scherrer Institute, Villigen PSI, Switzerland
| | - Vladimir Novak
- Photon Science Division, Paul Scherrer Institute, Villigen PSI, Switzerland
| | - Pernilla Eliasson
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden; Department of Orthopaedics, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Marianne Liebi
- Department of Physics, Chalmers University of Technology, Gothenburg, Sweden; Photon Science Division, Paul Scherrer Institute, Villigen PSI, Switzerland; Institute of materials, Ecole Polytechnique fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Hanna Isaksson
- Department of Biomedical Engineering, Lund University, Lund, Sweden
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15
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Gholizadeh M, Shadi A, Abadi A, Nemati M, Senapathi V, Karthikeyan S, Kulandaisamy P. Exploring the microplastic pollution: Unveiling origins and varieties in coastal sediments and waters of the Bushehr Province, Persian Gulf, Iran. Mar Pollut Bull 2024; 198:115939. [PMID: 38128339 DOI: 10.1016/j.marpolbul.2023.115939] [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: 10/19/2023] [Revised: 12/05/2023] [Accepted: 12/13/2023] [Indexed: 12/23/2023]
Abstract
In this study, microplastic (MP) pollution in the coastal sediments and tidal waters of Bushehr province in the Persian Gulf was comprehensively investigated. The sampling stations were selected based on their proximity to various human activities in January and February 2022, such as tourism, fishing, urban development and industry. The results showed that the abundance of MP associated with different human activities varied. The highest concentrations were observed near the petrochemical industry in Asaluyeh, followed by the densely populated Bushehr and the fishing port of Dayyer. Other areas such as Ganaveh, Deylam and Mand also showed varying levels of MP contamination. The average MP concentration was 1.67 × 104 particles/km2 in surface water and 1346.67 ± 601.69 particles/kg in dry sediment. Fiber particles were in the majority in both sediment and water samples, mainly black. The sediment samples had a size range of 100-500 μm (41.34 %), while the water samples were between 500 and 1000 μm (33.44 %). The main polymers found were polyethylene (PE) and polypropylene (PP). This assessment highlights the widespread problem of microplastic pollution in the coastal and intertidal zones of Bushehr province in the Persian Gulf.
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Affiliation(s)
- Mohammad Gholizadeh
- Department of Fisheries, Faculty of Agriculture and Natural Resources, Gonbad Kavous University, Gonbad Kavous, Iran.
| | - Ahmed Shadi
- Department of Biological Sciences and Technology, Faculty of Nano and Biological Sciences and Technology, Persian Gulf University, Bushehr, Iran
| | | | - Mahnaz Nemati
- Department of Food Technology, School of Industrial Technology, Universiti Sains Malaysia, Malaysia
| | - Venkatramanan Senapathi
- Department of Geology, Faculty of Science, Alagappa University, Karaikudi, Tamil Nadu, India.
| | - Sivakumar Karthikeyan
- Department of Geology, Faculty of Science, Alagappa University, Karaikudi, Tamil Nadu, India
| | - Prabakaran Kulandaisamy
- Department of Geology, Faculty of Science, Alagappa University, Karaikudi, Tamil Nadu, India
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16
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Ahmad MI, Li Y, Pan J, Liu F, Dai H, Fu Y, Huang T, Farooq S, Zhang H. Collagen and gelatin: Structure, properties, and applications in food industry. Int J Biol Macromol 2024; 254:128037. [PMID: 37963506 DOI: 10.1016/j.ijbiomac.2023.128037] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 11/01/2023] [Accepted: 11/09/2023] [Indexed: 11/16/2023]
Abstract
Food-producing animals have the highest concentration of collagen in their extracellular matrix. Collagen and gelatin are widely used in food industry due to their specific structural, physicochemical, and biochemical properties, which enable them to improve health and nutritional value as well as to increase the stability, consistency, and elasticity of food products. This paper reviews the structural and functional properties including inherent self-assembly, gel forming, water-retaining, emulsifying, foaming, and thickening properties of collagen and gelatin. Then the colloid structures formed by collagen such as emulsions, films or coatings, and fibers are summarized. Finally, the potential applications of collagen and gelatin in muscle foods, dairy products, confectionary and dessert, and beverage products are also reviewed. The objective of this review is to provide the current market value, progress as well as applications of collagen and its derivatives in food industry.
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Affiliation(s)
- Muhammad Ijaz Ahmad
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China
| | - Yonghui Li
- Department of Grain Science and Industry, Kansas State University, Manhattan, KS 66506, USA
| | - Jinfeng Pan
- National Engineering Research Centre for Seafood, Collaborative Innovation Centre of Provincial and Ministerial Co-construction for Seafood Deep Processing, Liaoning Province Collaborative Innovation Centre for Marine Food Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Fei Liu
- State Key Laboratory of Food Science and Technology, Science Center for Future Foods, Jiangnan University, School of Food Science and Technology, International Joint Laboratory on Food Safety, Wuxi 214122, China
| | - Hongjie Dai
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Yu Fu
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Tao Huang
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang 315800, China
| | - Shahzad Farooq
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China
| | - Hui Zhang
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China.
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17
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Chen R, Zhao X, Wu X, Wang J, Wang X, Liang W. Research progress on occurrence characteristics and source analysis of micro fibers in the marine environment. Mar Pollut Bull 2024; 198:115834. [PMID: 38061148 DOI: 10.1016/j.marpolbul.2023.115834] [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: 07/25/2023] [Revised: 11/13/2023] [Accepted: 11/18/2023] [Indexed: 01/05/2024]
Abstract
Synthetic microfiber pollution is a growing concern in the marine environment. However, critical issues associated with microfiber origins in marine environments have not been resolved. Herein, the potential sources of marine microfibers are systematically reviewed. The obtained results indicate that surface runoffs are primary contributors that transport land-based microfibers to oceans, and the breakdown of larger fiber plastic waste due to weathering processes is also a notable secondary source of marine microfibers. Additionally, there are three main approaches for marine microplastic source apportionment, namely, anthropogenic source classification, statistical analysis, and numerical simulations based on the Lagrangian particle tracking method. These methods establish the connections between characteristics, transport pathways and sources of microplastics, which provides new insights to further conduct microfiber source apportionment. This study helps to better understand sources analysis and transport pathways of microfibers into oceans and presents a scientific basis to further control microfiber pollution in marine environments.
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Affiliation(s)
- Rouzheng Chen
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 10012, China
| | - Xiaoli Zhao
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 10012, China.
| | - Xiaowei Wu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 10012, China
| | - Junyu Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 10012, China
| | - Xia Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 10012, China
| | - Weigang Liang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 10012, China
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18
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Pinto MMR, Sánchez AAC, da Costa SM, do Nascimento JHO, Galvão F, de Lima FS, Ferraz HG, Oliveira RC, da Costa SA. Agarose fibers with glycerol and graphene oxide and functional properties for potential application in biomaterials. Int J Biol Macromol 2023; 253:127204. [PMID: 37797856 DOI: 10.1016/j.ijbiomac.2023.127204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 09/11/2023] [Accepted: 09/30/2023] [Indexed: 10/07/2023]
Abstract
Agarose has numerous applications in biochemistry and medical textiles. This study aimed to produce agarose-graphene oxide-glycerol fibers and analyze their properties. The agarose gel was prepared by dissolving the polymer in 9:1 (v/v) dimethyl sulfoxide (DMSO): H2O, followed by spinning in an ethanol bath (1:1 (v/v) ethanol: H2O) at 20 °C. Fibers were obtained using 8 % (m/v) agarose, 2 % (m/v) glycerol, and 0.5 % and 1 % (m/v) graphene oxide (GO). The fibers had a titer of 18.32-32.49 tex and, a tenacity of 1.40-3.35 cN/tex. GO increased the thermal resistance by 79 %. The presence of glycerol and GO was confirmed and analyzed by FTIR and XPS. Fiber water absorption was decreased by 30 % with the GO addition. The weight loss increased by 55 % after glycerol addition, 51 % with GO addition, and 36 % with glycerol and GO simultaneous addition. Furthermore, GO exhibited 100 % inhibition for both S. aureus (gram-positive) and E. coli bacteria (gram-negative). Fiber F1, with only agarose, inhibited S. aureus by 34.93 %, F2 with 2 % glycerol by 48.72 %, F3 with 0.5 % GO by 63.42 %, and F4 with 2 % glycerol and 0.5 % GO by 30.65 %. However, the inhibition increased to 49.43 % with 1 % GO. The agarose fibers showed low inhibition for E. coli, ranging from 3.35 to 12.12 %.
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Affiliation(s)
- Marília Martins Rodrigues Pinto
- School of Arts, Sciences and Humanities, Textile and Fashion Course, University of São Paulo, Av. Arlindo Béttio, 1000, Parque Ecológico do Tietê, Ermelino Matarazzo, São Paulo, SP, Brazil
| | - Annie Alexandra Cerón Sánchez
- School of Arts, Sciences and Humanities, Textile and Fashion Course, University of São Paulo, Av. Arlindo Béttio, 1000, Parque Ecológico do Tietê, Ermelino Matarazzo, São Paulo, SP, Brazil
| | - Sirlene Maria da Costa
- School of Arts, Sciences and Humanities, Textile and Fashion Course, University of São Paulo, Av. Arlindo Béttio, 1000, Parque Ecológico do Tietê, Ermelino Matarazzo, São Paulo, SP, Brazil
| | | | - Felipe Galvão
- Departament of Textile Engineering - DET, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 300 - Lagoa Nova, Natal, RN, Brazil
| | - Fernando Soares de Lima
- Laboratory of Technical Textiles and Protection Products, Institute for Technological Research of São Paulo State, São Paulo 05508-901, SP, Brazil
| | - Humberto Gomes Ferraz
- Department of Pharmacy, School of Pharmaceutical Sciences, University of São Paulo, Av. Prof. Lineu Prestes, 580, Cidade Universitária, 05508-000 São Paulo, Brazil
| | - Rodrigo Cardoso Oliveira
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Brazil. Alameda Dr. Octávio Pinheiro Brisolla, 9-75, Vila Universitária, 1701290, Bauru, SP - Brazil
| | - Silgia Aparecida da Costa
- School of Arts, Sciences and Humanities, Textile and Fashion Course, University of São Paulo, Av. Arlindo Béttio, 1000, Parque Ecológico do Tietê, Ermelino Matarazzo, São Paulo, SP, Brazil.
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Jabeen K, Xu J, Liu K, Zhu L, Li D. Monthly variation and transport of microplastics from the Soan River into the Indus River. Sci Total Environ 2023; 905:166877. [PMID: 37689211 DOI: 10.1016/j.scitotenv.2023.166877] [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: 06/22/2023] [Revised: 08/22/2023] [Accepted: 09/04/2023] [Indexed: 09/11/2023]
Abstract
The presence of plastic and microplastic pollution in freshwater systems receives extensive concerns for its accumulative trend and potential ecological impacts. This is the first annual study that investigated the monthly profile of plastic pollution in the mouth of the Soan River. Plastic pollutants comprising microplastic content up to 91.7 % were abundantly found during different seasons around the year, ranging from 132.7 items/m3 to 641.3 items/m3. The average abundance of plastics was significantly higher in August (641.3 ± 23.7 items/m3) than in other months. Overall, fibers, large microplastics (L-MPs), and transparent items were dominant by shape (57.7 %), size (61.9 %), and color (24.6 %), respectively. The highest average number of fibers (374.3/m3) and L-MPs (396 items/m3) were recorded during May and remained higher in the surface water from December to May. Fragments (432.3/m3) and S-MPs were observed higher (362.3 items/m3) during the peak rainy month of the summer monsoon season (August). Variations in the abundance and morphotypes were seemingly not only influenced by the seasonal change but also might be due to hydromorphological characteristics of the river, especially riverbed morphology, and the flow of the water. Only 5.2 % of the total items found were identified using μ-FTIR (micro-Fourier Transformed Infrared Spectroscope) which consisted of 70.7 % plastic items. Spectroscopy revealed that polyethylene terephthalate was an abundantly found polymer that largely prevailed in the form of fibers, followed by polypropylene and polyethylene. Most of the fragments, foams, and films were composed of polypropylene, polystyrene, and rayon respectively. Being an urban river, the polymeric profile demonstrated that anthropogenic activities had a significant impact on polluting the river. These findings are a very important source to understand the profile of plastic pollution in the Soan River and also a significant reference for policy-making in controlling plastic pollution among the riverine networks.
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Affiliation(s)
- Khalida Jabeen
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China; Institute of Plastic Cycle and Innovation, East China Normal University, 200062 Shanghai, China; Regional Training and Research Center on Plastic Marine Debris and Microplastics, IOC-UNESCO, Shanghai 200241, China
| | - Jiayi Xu
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China; Institute of Plastic Cycle and Innovation, East China Normal University, 200062 Shanghai, China; Regional Training and Research Center on Plastic Marine Debris and Microplastics, IOC-UNESCO, Shanghai 200241, China
| | - Kai Liu
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China; Institute of Plastic Cycle and Innovation, East China Normal University, 200062 Shanghai, China; Regional Training and Research Center on Plastic Marine Debris and Microplastics, IOC-UNESCO, Shanghai 200241, China
| | - Lixin Zhu
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China; Institute of Plastic Cycle and Innovation, East China Normal University, 200062 Shanghai, China; Regional Training and Research Center on Plastic Marine Debris and Microplastics, IOC-UNESCO, Shanghai 200241, China
| | - Daoji Li
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China; Institute of Plastic Cycle and Innovation, East China Normal University, 200062 Shanghai, China; Regional Training and Research Center on Plastic Marine Debris and Microplastics, IOC-UNESCO, Shanghai 200241, China.
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da Costa ID, Costa LL, Zalmon IR. Are fishes selecting the trash they eat? Influence of feeding mode and habitat on microplastic uptake in an artificial reef complex (ARC). Sci Total Environ 2023; 904:166788. [PMID: 37666344 DOI: 10.1016/j.scitotenv.2023.166788] [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: 08/01/2023] [Revised: 08/30/2023] [Accepted: 09/01/2023] [Indexed: 09/06/2023]
Abstract
Every year, coastal countries generate ∼275 million tons of plastic, and the oceans receive from 4.8 to 12.7 million tons3. Pollution by synthetic polymers is even more problematic for the environment when this material is fragmented into small portions, forming microplastics (MPs). In the present study, we analyze the selection of MPs by the ichthyofauna based on the availability of the morphotypes and polymeric composition of microplastic in the environment and compare the amount of MP in surface water, water column, sediments and fish in different organs, trophic categories, habitats and areas with and without artificial reefs. In order to achieve this goal, the shape, color, abundance and chemical composition of MPs in the digestive tract and gills of 18 fish species in artificial reefs area and control area, were evaluated. A total of 216 fish were analyzed, and 149 (60 %) had MPs in at least one organ and showed a mean concentration of 1.55 ± 3.31 MPs/g. Of the 18 fish species collected in the reef complex area, 17 (94 %) included individuals with at least one MP in digestive tract or gills. Four species showed the higher selectivity of MP types, colors, and polymers. More MPs were found in the fish, surface water, water column and sediment in the artificial reef area compared to the control areas. This is the first evidence of MP selection by commercially important fish species in artificial marine structures worldwide. These results provide useful information on MP pollution in RAs and highlight yet another issue that must be considered in the management of fisheries resources in the region and in other reef complexes around the world.
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Affiliation(s)
- Igor David da Costa
- Departamento de Ciências Exatas, Biológicas e da Terra, Universidade Federal Fluminense, Santo Antônio de Pádua 28470-000, Rio de Janeiro, Brazil; Mestrado Profissional em Gestão e Regulação de Recursos Hídricos, Universidade Federal de Rondônia, 76900-726 Rondônia, Brazil; Laboratório de Ciências Ambientais, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes 28013-602, Rio de Janeiro, Brazil.
| | - Leonardo Lopes Costa
- Laboratório de Ciências Ambientais, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes 28013-602, Rio de Janeiro, Brazil
| | - Ilana Rosental Zalmon
- Laboratório de Ciências Ambientais, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes 28013-602, Rio de Janeiro, Brazil.
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21
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Bhat MA. Indoor microplastics: a comprehensive review and bibliometric analysis. Environ Sci Pollut Res Int 2023; 30:121269-121291. [PMID: 37980322 DOI: 10.1007/s11356-023-30902-0] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 11/01/2023] [Indexed: 11/20/2023]
Abstract
Indoor microplastic (MP) pollution is becoming a worldwide issue because people spend more time inside. Through dust and air, indoor MP pollution may harm human health. This review summarizes recent advancements in indoor MP research, covering pretreatments, quality control, filter membranes, and identification methods. Additionally, it conducts bibliometric analysis to examine the usage of keywords, publication records, and authors' contributions to the field. Comparatively, dust and deposition samples exhibit higher MP concentrations than indoor air samples. Fiber-shaped MPs are commonly detected indoors. The color and types of MPs display variability, with polypropylene, polyethylene, polyethylene terephthalate, and polystyrene identified as the dominant MPs. Indoor environments generally demonstrate higher concentrations of MPs than outdoor environments, and MPs in the lower size range (1-100 µm) are typically more abundant. Among the reviewed articles, 45.24% conducted pretreatment on their samples, while 16.67% did not undergo any pretreatment. The predominant filter utilized in most studies was the Whatman Glass microfiber filter (41.67%), and MPs were predominantly characterized using µ-FTIR (19.23%). In the literature, 17 papers used blank samples, and eight did not. Blank findings were not included in most research (23 articles). A significant increase in published articles has been observed since 2020, with an annual growth rate exceeding 10%. The keyword microplastics had the highest frequency, followed by fibers. This indoor MP study emphasizes the need for collaborative research, policymaking, and stakeholder involvement to reduce indoor MP pollution. As indoor MP research grows, so are opportunities to identify and minimize environmental and health impacts.
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Affiliation(s)
- Mansoor Ahmad Bhat
- Faculty of Engineering, Department of Environmental Engineering 26555, Eskişehir Technical University, Eskişehir, Türkiye.
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22
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Molina MIE, Komvopoulos K. In vitro degradation of fibrous bilayer poly-L-lactic acid scaffolds. J Biomech 2023; 161:111823. [PMID: 37948878 DOI: 10.1016/j.jbiomech.2023.111823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 10/03/2023] [Indexed: 11/12/2023]
Abstract
Polymer degradation and mechanical properties are of paramount importance in tissue engineering. The degradation rate of polymeric scaffolds is influenced by several important material and environmental factors. In particular, the mechanical support provided by the scaffold to the surrounding tissue during tissue regeneration is critical for that it directly impacts the cell behavior through mechanical signals sensed by mechanoreceptors on the cell surface. Consequently, the principal objective of the present study was to investigate the degradation behavior of electrospun poly-L-lactic acid (PLLA) bilayer microfibrous scaffolds in pH-neutral medium. Changes in the morphology, molecular weight, crystallinity, mass loss, and thermomechanical properties of the scaffolds over an extended period were studied by scanning electron microscopy, differential scanning calorimetry, gel permeation chromatography, and tensile testing. An interplay between chain scission and orderly chain rearrangement in the polymer scaffold commenced during degradation, leading to the decrease of the molecular weight and stiffness, a constant mass loss, and an increase in crystallinity, tensile strength, and glass transition temperature, with virtually constant yield strength and melting temperature. The unchanged structure morphology and adequate matrix stiffness after prolonged degradation illuminated the potential of the bilayer PLLA scaffolds for tissue engineering and drug delivery applications. Nonetheless, modifications to the scaffold structure or surface may be required to accordingly tune the degradation rate in these applications. The experimental methodology introduced in this study can be extended to potentially investigate material degradation in other fields, such as agriculture, packaging, and disposable products.
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Affiliation(s)
| | - Kyriakos Komvopoulos
- Department of Mechanical Engineering, University of California, Berkeley, CA 94720, USA.
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23
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Flajšman M, Košmelj K, Grčman H, Ačko DK, Zupan M. Industrial hemp (Cannabis sativa L.)-a valuable alternative crop for growing in agricultural soils contaminated with heavy metals. Environ Sci Pollut Res Int 2023; 30:115414-115429. [PMID: 37884708 PMCID: PMC10682123 DOI: 10.1007/s11356-023-30474-z] [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: 01/10/2023] [Accepted: 10/10/2023] [Indexed: 10/28/2023]
Abstract
Hemp (Cannabis sativa L.) is a multiuse plant, which has been abundantly studied for phytoremediation purposes in recent years. The majority of experiments were performed in greenhouses with potted plants where hemp showed promising results. Only few studies tested hemp on site in heavy metal-polluted agricultural soil in real environmental conditions and practical assessments of hemp phytoremediation feasibility are lacking. We conducted a comprehensive study using 2 legal industrial hemp varieties (Futura 75 and Tisza) at three differently polluted locations (heavily polluted location, HP; moderately polluted location, MP; and slightly polluted location, SP) in the heavy metal contaminated Celje valley in Slovenia and determined the content of Pb, Zn, and Cd in 5 plant organs/tissues. The yield of each organ/tissue was determined as well to enable us to calculate the phytoremediation potential (PP). On average, plants grown in the HP location accumulated the highest values of all examined elements, followed by plants from the MP location and plants from the SP location, showing that the content of heavy metals in soil influences the accumulation in plants. Accumulation of Pb/Zn/Cd by plant organs/tissues was distributed in the following order: inflorescences (Pb-4.10/Zn-92.8/Cd-0.50 mg/kg) > seeds (Pb-1.79/Zn-92.6/Cd-0.27 mg/kg) > roots (Pb-1.15/Zn-15.0/Cd-0.44 mg/kg) > stem bark (Pb-0.42/Zn-12.4/Cd-0.23 mg/kg) > stem woody core (Pb-0.34/Zn-4.6/Cd-0.15 mg/kg). The only exception was for Cd, where roots accumulated a higher value than seed, yet lower than inflorescences. PP was calculated by multiplying hemp tissue/organ yield by the relative concentrations of heavy metal. The highest PP for Pb and Cd were achieved at the HP location (3.80 and 0.23 g/ha/vegetation period). On the other hand, tissue/organ yield was more important for high PP of Zn, where the SP location reached the highest PP for Zn (148.5 g/ha/vegetation period) due to the highest yields. Only seeds from HP and MP locations accumulated a too high content of Pb; otherwise, all other fibers and seeds can be safely used in the textile and food industry. Results of this study showed that hemp cannot be considered an efficient plant for the phytomanagement of contaminated areas. Nevertheless, hemp cultivation in heavy metal-polluted agricultural soils seems feasible since the majority of tissues/organs were not contaminated and different products can be obtained from various parts of the hemp plant.
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Affiliation(s)
- Marko Flajšman
- Department of Agronomy, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva, 101 1000, Ljubljana, Slovenia.
| | - Katarina Košmelj
- Department of Agronomy, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva, 101 1000, Ljubljana, Slovenia
| | - Helena Grčman
- Department of Agronomy, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva, 101 1000, Ljubljana, Slovenia
| | - Darja Kocjan Ačko
- Department of Agronomy, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva, 101 1000, Ljubljana, Slovenia
| | - Marko Zupan
- Department of Agronomy, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva, 101 1000, Ljubljana, Slovenia
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Başaran Kankılıç G, Koraltan İ, Erkmen B, Çağan AS, Çırak T, Özen M, Seyfe M, Altındağ A, Tavşanoğlu ÜN. Size-selective microplastic uptake by freshwater organisms: Fish, mussel, and zooplankton. Environ Pollut 2023; 336:122445. [PMID: 37633431 DOI: 10.1016/j.envpol.2023.122445] [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: 07/05/2023] [Revised: 08/11/2023] [Accepted: 08/22/2023] [Indexed: 08/28/2023]
Abstract
Microplastics, as an emergent pollutant, have garnered substantial attention within aquatic environments, yet a significant knowledge gap persists regarding the interplay of organism size and pollution impacts on microplastic uptake in freshwater ecosystems. The main aim of the current study is to assess the microplastic ingestion by aquatic organisms across diverse trophic levels. To achieve this objective, zooplankton, mussels (Anodonta anatina), and fish (Carassius gibelio) were collected from the highly polluted Susurluk River Basin in Türkiye. The size distribution encompassed 160.8 ± 56.9 μm for the prevailing zooplankton, 6.9 ± 2.2 cm for mussel, and 20.4 ± 3.1 cm for fish, respectively. While no microplastic ingestion was observed among zooplankton, the finding highlights the influence of body-size and pollution on microplastic ingestion. In contrast, A. anatina and C. gibelio contained 617 and 792 microplastic particles, respectively. Predominantly, fibers emerged as the most prevalent microplastic type across trophic levels (except zooplankton) followed by films. Notably, only fish exhibited fragments within their gastrointestinal tract. A substantial correlation emerged between microplastic abundance and mussel size and weight, but no such correlation manifested for fish. The study also revealed a positive link between microplastic count and turbidity (phosphate and high Chl a level), impacting mussel ingestion capacity due to the variability in the food availability and potential shifts in feeding preferences. Conversely, no distinct pattern emerged for fish concerning water quality parameters and ingested microplastics. Consequently, our study underscores diverse microplastic uptake patterns in freshwater ecosystems, with a predominant frequency of microplastics falling with the 0.3 mm-3.0 mm range, emphasizing the significance of size-selective uptake by organisms.
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Affiliation(s)
| | - İdris Koraltan
- Akdeniz University, Institute of Natural and Applied Sciences, Antalya, Türkiye
| | - Belda Erkmen
- Aksaray University, Faculty of Sciences, Biology Department, Ankara, Türkiye
| | - Ali Serhan Çağan
- Kastamonu University, Araç Rafet Vergili Vocational School, Wildlife Programme, Kastamonu, Türkiye; Çankırı Karatekin University, Faculty of Sciences, Biology Department, Çankırı, Türkiye
| | - Tamer Çırak
- Aksaray Technical Sciences Vocational School, Alternative Energy Sources Technology Program, Aksaray University, Aksaray, Türkiye
| | - Mihriban Özen
- Çankırı Karatekin University, Faculty of Sciences, Biology Department, Çankırı, Türkiye
| | - Melike Seyfe
- Çankırı Karatekin University, Faculty of Sciences, Biology Department, Çankırı, Türkiye
| | - Ahmet Altındağ
- Ankara University, Faculty of Sciences, Biology Department, Ankara, Türkiye
| | - Ülkü Nihan Tavşanoğlu
- Çankırı Karatekin University, Faculty of Sciences, Biology Department, Çankırı, Türkiye.
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25
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Bellissimo MP, Carbone S, He J, Jordan JH, Ambale-Venkatesh B, Lima JA, LaRose JG, Salloum FN, Bandyopadhyay D, Hundley WG. Higher diet quality relates to better cardiac function in cancer survivors: The multi-ethnic study of atherosclerosis. Prog Cardiovasc Dis 2023; 81:10-16. [PMID: 37852519 DOI: 10.1016/j.pcad.2023.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 10/15/2023] [Indexed: 10/20/2023]
Abstract
BACKGROUND Cancer therapies induce cardiac injury and increase cardiovascular disease (CVD) risk. In non-cancer populations, higher diet quality is associated with protection against CVD, but the relationship between diet and cardiac function in cancer survivors is unknown. METHODS This cross-sectional analysis from the Multi-Ethnic Study of Atherosclerosis (MESA) cohort included 113 cancer survivors (55 breast, 53 prostate, three lung, and three blood) and 4233 non-cancer controls. Dietary intake was reported via validated food frequency questionnaire. Alternate healthy eating index (AHEI) was calculated as a measure of quality. Cardiac function, determined as left ventricular ejection fraction (LVEF), was assessed by cardiac magnetic resonance. RESULTS Cancer survivors had a lower LVEF compared to controls (61.3 ± 6.5% v 62.4 ± 6.1%, p = 0.04). In all participants, total fat (β ± SE: -0.04 ± 0.01, p = 0.004), saturated fat (-0.11 ± 0.03, p < 0.001), and trans-fat (-0.36 ± 0.12, p = 0.002) intake were inversely associated with LVEF while AHEI (0.03 ± 0.01, p < 0.001) was positively associated with LVEF. Among cancer survivors only, sucrose intake was negatively related to LVEF (-0.15 ± 0.06, p = 0.02), and the ratio of unsaturated fat to saturated fat (2.7 ± 1.1, p = 0.01) and fiber intake (0.42 ± 0.14, p = 0.003) were positively related to LVEF. DISCUSSION In cancer survivors, improved dietary fat and carbohydrate quality (i.e., greater consumption of unsaturated fatty acids and fiber) was associated with favorable cardiac function, while higher sucrose was associated with worse cardiac function. Further research is needed to confirm these findings and test whether changes in the identified dietary factors will modulate cardiac function in cancer survivors.
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Affiliation(s)
- Moriah P Bellissimo
- VCU Pauley Heart Center, Division of Cardiology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA; Department of Health Behavior and Policy, Virginia Commonwealth University School of Medicine, Richmond, VA, USA.
| | - Salvatore Carbone
- VCU Pauley Heart Center, Division of Cardiology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA; Department of Kinesiology and Health Sciences, College of Humanities & Sciences, Virginia Commonwealth University, Richmond, VA, USA
| | - Jian He
- Department of Biostatistics, Virginia Commonwealth University School of Medicine, Richmond, VA, USA; Biostatistics Shared Resource at Massey Cancer Center, Richmond, VA, USA
| | - Jennifer H Jordan
- VCU Pauley Heart Center, Division of Cardiology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA; Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, USA
| | | | - Joao A Lima
- Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jessica Gokee LaRose
- Department of Health Behavior and Policy, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Fadi N Salloum
- VCU Pauley Heart Center, Division of Cardiology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Dipankar Bandyopadhyay
- Department of Biostatistics, Virginia Commonwealth University School of Medicine, Richmond, VA, USA; Biostatistics Shared Resource at Massey Cancer Center, Richmond, VA, USA
| | - W Gregory Hundley
- VCU Pauley Heart Center, Division of Cardiology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
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26
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Islam MKB, Kenneth Marcus R. Loading characteristics of streptavidin on polypropylene capillary channeled polymer fibers and capture performance towards biotinylated proteins. Anal Bioanal Chem 2023; 415:6711-6721. [PMID: 37740120 DOI: 10.1007/s00216-023-04948-5] [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: 07/20/2023] [Revised: 08/30/2023] [Accepted: 09/11/2023] [Indexed: 09/24/2023]
Abstract
The development of higher-throughput, potentially lower-cost means to isolate proteins, for a variety of end uses, is of continuing emphasis. Polypropylene (PP) capillary-channeled polymer (C-CP) fiber columns are modified with the biotin-binding protein streptavidin (SAV) to capture biotinylated proteins. The loading characteristics of SAV on fiber supports were determined using breakthrough curves and frontal analysis. Based on adsorption data, a 3-min on-column loading at a flow rate of 0.5 mL min-1 (295.2 cm h-1) with a SAV feed concentration of 0.5 mg mL-1 produces a SAV loading capacity of 1.4 mg g-1 fiber. SAV has an incredibly high affinity for the small-molecule biotin (10-14 M), such that this binding relationship can be exploited by labeling a target protein with biotin via an Avi-tag. To evaluate the capture of the biotinylated proteins on the modified PP surface, the biotinylated versions of bovine serum albumin (b-BSA) and green fluorescent protein (b-GFP) were utilized as probe species. The loading buffer composition and flow rate were optimized towards protein capture. The non-ionic detergent Tween-20 was added to the deposition solutions to minimize non-specific binding. Values of 0.25-0.50% (v/v) Tween-20 in PBS exhibited better capture efficiency, while minimizing the non-specific binding for b-BSA and b-GFP, respectively. The C-CP fiber platform has the potential to provide a fast and low-cost method to capture targeted proteins for applications including protein purification or pull-down assays.
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Affiliation(s)
- Md Khalid Bin Islam
- Department of Chemistry, Biosystems Research Complex, Clemson University, Clemson, SC, 29634-0973, USA
| | - R Kenneth Marcus
- Department of Chemistry, Biosystems Research Complex, Clemson University, Clemson, SC, 29634-0973, USA.
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27
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Tao J, Quan J, El Helali A, Lam WWT, Pang H. Global trends indicate increasing consumption of dietary sodium and fiber in middle-income countries: A study of 30-year global macrotrends. Nutr Res 2023; 118:63-69. [PMID: 37598558 DOI: 10.1016/j.nutres.2023.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 07/14/2023] [Accepted: 07/17/2023] [Indexed: 08/22/2023]
Abstract
According to the Global Burden of Disease Study, 3 million deaths were attributable to high sodium intake and low intake of whole grains. With the rapid evolution of the food industry, we hypothesize that dietary intake of sodium has increased and that dietary intake of whole grains or fibers has decreased because of easier access to highly processed food. Country-level data on dietary factors and country income levels from 1990 to 2018 were collected from 3 public databases. The trend of dietary intake was modeled using the linear mixed model accounting for random effects of individual countries. The country-level differences in dietary factors between males and females were calculated, and the trends were also modeled accounting for the random effects of countries. Both males and females consumed increasing amounts of dietary sodium from 1990 to 2018 in high-income, middle- to high-, middle-, and low-income countries. Dietary fiber intake increased in low-to-middle, middle-, and middle-to-high income countries for both men and women over the past 3 decades. Men tend to consume more sodium and less fiber and whole grains in their diets than women, the trend of which is statistically significant in middle-income countries. Over the past 3 decades, the macrotrend of dietary sodium has increased around the globe. To reduce the sodium intake level, nutrition policy should emphasize sodium reduction, especially in high-income, middle- to high-income, middle-income, and low-income countries.
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Affiliation(s)
- Jun Tao
- School of Public Health, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Jianchao Quan
- School of Public Health, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, China; Faculty of Business and Economics, University of Hong Kong, Hong Kong, China
| | - Aya El Helali
- Department of Clinical Oncology, School of Clinical Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Wendy W T Lam
- School of Public Health, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, China; LKS Jockey Club Institute of Cancer Care, University of Hong Kong, Hong Kong, China
| | - Herbert Pang
- School of Public Health, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, China; Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, NC, USA.
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28
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López-Martínez S, Giménez-Luque E, Molina-Pardo JL, Manzano-Medina S, Arribas-Arias H, Gavara R, Morales-Caselles C, L Rivas M. Plastic ingestion by two cetacean groups: Ziphiidae and Delphinidae. Environ Pollut 2023; 333:121932. [PMID: 37336348 DOI: 10.1016/j.envpol.2023.121932] [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: 01/17/2023] [Revised: 05/28/2023] [Accepted: 05/29/2023] [Indexed: 06/21/2023]
Abstract
The presence of plastic in our environment is having a massive impact on today's marine biota. Whales and dolphins are becoming sentinels of litter pollution as plastic entanglement and ingestion affect them with unknown consequences. Although information exists about this anthropogenic interaction, the compilation of this data on metastudies is difficult due to the use of varied methodologies. A combination of our own data as well as a review of historical data was used to complete an extensive study of how cetaceans are interacting with macro and micro-litter at a global level. Here, we identify the plastic uptake by two cetacean families: Ziphiidae and Delphinidae, thus allowing for a better understanding in order to offer a global overview of their current status. Additionally, analysis was run on the plastic found in the digestive contents of stranded specimens of two Cuvier's beaked whales and fourteen striped dolphins in the Alboran Sea, in the Western Mediterranean, a hotspot for marine megafauna. Out of 623 stranded cetaceans from datasets, beaked whales displayed the highest concentration of macro, meso and microplastic in the Western Pacific Ocean. Regarding striped dolphins, Eastern Spain was the location with the highest plastic ingestion. Moreover, deep divers such as beaked whales ingested more plastic than striped dolphins which could be as a consequence of their feeding behavior or habitat. Thus, this overview provides useful information concerning conservation issues on how cetacean hotspots are highly affected by marine plastic ingestion.
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Affiliation(s)
| | | | | | | | | | - Rafael Gavara
- Instituto de Agroquímica y Tecnologia de Alimentos, CSIC, Paterna, Spain
| | | | - Marga L Rivas
- Biology Department, Institute of Marine Science INMAR, University of Cádiz, Spain
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29
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Fagiano V, Compa M, Alomar C, Morató M, Deudero S. The hyperbenthic environment: A forgotten habitat for plastic pollution. Mar Pollut Bull 2023; 194:115291. [PMID: 37459771 DOI: 10.1016/j.marpolbul.2023.115291] [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: 10/26/2022] [Revised: 07/06/2023] [Accepted: 07/11/2023] [Indexed: 09/12/2023]
Abstract
This study investigates the abundances and composition of microplastics (MP) among the shallow layers of a coastal Mediterranean Marine Protected Area (Cabrera MPA), seafloor sediments, hyperbenthic environment, and the water column. The mid waters samples were collected mid-way between the sea surface and the seafloor and hyperbenthic samples at the water layer adjacent to the seafloor. Sampling was carried out on patchiness seafloor of Posidonia oceanica meadows. The seafloor sediments showed a mean abundance of 378,769.20 ± 508,109.11 MPs/m3, three orders of magnitude higher than the hyperbenthic (209.17 ± 117.07 MPs/m3), and the mid waters layer (106.48 ± 107.17 MPs/m3). An increasing vertical gradient in MP abundances, mainly composed of fibers was observed. Fibers were made-up mainly of polystyrene (PS, 25 %), expanded polystyrene (EPS, 18 %) and cellulose acetate (CA, 16 %). The results stress the need to increase efforts to find solutions to mitigate fiber pollution in the marine environment.
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Affiliation(s)
- V Fagiano
- Centro Oceanográfico de Baleares (IEO, CSIC), Muelle de Poniente s/n, 07015 Mallorca, Spain; University of Balearic Islands, Palma de Mallorca, Spain.
| | - M Compa
- Centro Oceanográfico de Baleares (IEO, CSIC), Muelle de Poniente s/n, 07015 Mallorca, Spain
| | - C Alomar
- Centro Oceanográfico de Baleares (IEO, CSIC), Muelle de Poniente s/n, 07015 Mallorca, Spain
| | - M Morató
- Centro Oceanográfico de Baleares (IEO, CSIC), Muelle de Poniente s/n, 07015 Mallorca, Spain
| | - S Deudero
- Centro Oceanográfico de Baleares (IEO, CSIC), Muelle de Poniente s/n, 07015 Mallorca, Spain
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30
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Kutralam-Muniasamy G, Shruti VC, Pérez-Guevara F, Roy PD, Martínez IE. Consumption of commercially sold dried fish snack "Charales" contaminated with microplastics in Mexico. Environ Pollut 2023:121961. [PMID: 37277071 DOI: 10.1016/j.envpol.2023.121961] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/01/2023] [Accepted: 06/02/2023] [Indexed: 06/07/2023]
Abstract
Inadvertent human exposure to microplastics by the ingestion of microplastic-contaminated processed foods poses health risks and new preventative issues; nevertheless, investigations analyzing microplastic occurrences in commercially dried fish for direct human consumption are scarce. This study assessed the abundance and characteristics of microplastics in 25 commercially sold dried fish products (4 supermarkets, 3 street vendors, and 18 traditional agri-product farmers' markets) from two widely consumed and commercially important Chirostoma species (C. jordani and C. patzcuaro) in Mexico. Microplastics were detected in all the samples examined, with abundances ranging from 4.00 ± 0.94 to 55.33 ± 9.43 items g-1. C. jordani dried fish samples had higher mean microplastic abundance (15.17 ± 5.90 items g-1) than the C. patzcuaro dried fish samples (7.82 ± 2.90 items g-1); nevertheless, there was no statistically significant difference in microplastic concentrations between the samples. The most prevalent type of microplastic was fiber (67.55%), followed by fragment (29.18%), film (3.00%), and sphere (0.27%). Non-colored microplastics (67.35%) predominated, while microplastic sizes varied from 24 to 1670 μm, with sizes less than 500 μm (84%) being the most common. ATR-FTIR analysis revealed polyester, acrylonitrile butadiene styrene, polyvinyl alcohol, ethylene-propylene copolymer, nylon-6 (3), cellophane, and viscose in the dried fish samples. Overall, this study's findings are the first in Latin America to demonstrate microplastic contamination in dried fish for human consumption, underscoring the need for developing countermeasures to prevent plastic pollution in fish-caught regions and reduce the risks of human exposure to these micropollutants.
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Affiliation(s)
- Gurusamy Kutralam-Muniasamy
- Department of Biotechnology and Bioengineering, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - V C Shruti
- Department of Biotechnology and Bioengineering, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, Mexico.
| | - Fermín Pérez-Guevara
- Department of Biotechnology and Bioengineering, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, Mexico; Nanoscience & Nanotechnology Program, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - Priyadarsi D Roy
- Instituto de Geología, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Del. Coyoacán, C.P. 04510, Ciudad de México, Mexico
| | - I Elizalde Martínez
- Instituto Politécnico Nacional (IPN), Centro Mexicano para la Producción más Limpia (CMP+L), Av. Acueducto s/n, Col. Barrio la Laguna Ticomán, Del Gustavo A. Madero, C.P. 07340, México City, Mexico
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Nantege D, Odong R, Auta HS, Keke UN, Ndatimana G, Assie AF, Arimoro FO. Microplastic pollution in riverine ecosystems: threats posed on macroinvertebrates. Environ Sci Pollut Res Int 2023:10.1007/s11356-023-27839-9. [PMID: 37248351 DOI: 10.1007/s11356-023-27839-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 05/18/2023] [Indexed: 05/31/2023]
Abstract
Microplastics (MPs) are pollutants of emerging concern that have been reported in terrestrial and aquatic ecosystems as well as in food items. The increasing production and use of plastic materials have led to a rise in MP pollution in aquatic ecosystems. This review aimed at providing an overview of the abundance and distribution of MPs in riverine ecosystems and the potential effects posed on macroinvertebrates. Microplastics in riverine ecosystems are reported in all regions, with less research in Africa, South America, and Oceania. The abundance and distribution of MPs in riverine ecosystems are mainly affected by population density, economic activities, seasons, and hydraulic regimes. Ingestion of MPs has also been reported in riverine macroinvertebrates and has been incorporated in caddisflies cases. Further, bivalves and chironomids have been reported as potential indicators of MPs in aquatic ecosystems due to their ability to ingest MPs relative to environmental concentration. Fiber and fragments are the most common types reported. Meanwhile, polyethylene, polypropylene, polystyrene, polyethylene terephthalate (polyester), polyamide, and polyvinyl chloride are the most common polymers. These MPs are from materials/polymers commonly used for packaging, shopping/carrier bags, fabrics/textiles, and construction. Ingestion of MPs by macroinvertebrates can physically harm and inhibit growth, reproduction, feeding, and moulting, thus threatening their survival. In addition, MP ingestion can trigger enzymatic changes and cause oxidative stress in the organisms. There is a need to regulate the production and use of plastic materials, as well as disposal of the wastes to reduce MP pollution in riverine ecosystems.
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Affiliation(s)
- Diana Nantege
- Applied Hydrobiology Unit, Department of Animal Biology, Federal University of Technology, PMB 65, Minna, Nigeria.
- Department of Zoology, Entomology and Fisheries Sciences, College of Natural Sciences, Makerere University, P.O. Box 7062, Kampala, Uganda.
| | - Robinson Odong
- Department of Zoology, Entomology and Fisheries Sciences, College of Natural Sciences, Makerere University, P.O. Box 7062, Kampala, Uganda
| | - Helen Shnada Auta
- Applied Hydrobiology Unit, Department of Animal Biology, Federal University of Technology, PMB 65, Minna, Nigeria
| | - Unique Ndubuisi Keke
- Applied Hydrobiology Unit, Department of Animal Biology, Federal University of Technology, PMB 65, Minna, Nigeria
| | - Gilbert Ndatimana
- Applied Hydrobiology Unit, Department of Animal Biology, Federal University of Technology, PMB 65, Minna, Nigeria
| | - Attobla Fulbert Assie
- Applied Hydrobiology Unit, Department of Animal Biology, Federal University of Technology, PMB 65, Minna, Nigeria
| | - Francis Ofurum Arimoro
- Applied Hydrobiology Unit, Department of Animal Biology, Federal University of Technology, PMB 65, Minna, Nigeria
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Della Torre C, Riccardi N, Magni S, Modesto V, Fossati M, Binelli A. First comparative assessment of contamination by plastics and non-synthetic particles in three bivalve species from an Italian sub-alpine lake. Environ Pollut 2023; 330:121752. [PMID: 37156439 DOI: 10.1016/j.envpol.2023.121752] [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: 01/24/2023] [Revised: 04/22/2023] [Accepted: 04/28/2023] [Indexed: 05/10/2023]
Abstract
This study aimed to compare the contamination from plastics and non-synthetic particles in the three freshwater bivalve mollusks Unio elongatulus, (native) and Corbicula fluminea and Dreissena polymorpha (invasive), collected in Lake Maggiore, the second greatest Italian lake. Organisms were collected from eight sites located throughout the lake, during three years (2019-2021). The quali-quantitative characterization of particles has been carried out using a Fourier Transform Infrared Microscope System (μFT-IR). Results showed that both plastics and non-synthetic particles released in the water are taken up by bivalves, even though low intake-up to 6 particles/individuals-were measured for all the three species. Microfibers of both synthetic (polyester, polyamide) and natural (cellulose) origin represented the particles mostly ingested by bivalves. A significant decrease of particle loads was observed in 2020 with respect to 2019 and 2021, significantly different for D. polymorpha and U. elongatulus, suggesting a transient reduction of the particle release in the lake in this year. Our findings highlight the need to improve the understanding of the mechanisms of uptake and clearance of these contaminants by filter feeding organisms, and their adverse consequences in realistic environmental conditions.
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Affiliation(s)
| | | | - Stefano Magni
- Department of Biosciences, University of Milan, Milan, Italy
| | | | - Marco Fossati
- Department of Biosciences, University of Milan, Milan, Italy
| | - Andrea Binelli
- Department of Biosciences, University of Milan, Milan, Italy
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Romarate RA, Ancla SMB, Patilan DMM, Inocente SAT, Pacilan CJM, Sinco AL, Guihawan JQ, Capangpangan RY, Lubguban AA, Bacosa HP. Breathing plastics in Metro Manila, Philippines: presence of suspended atmospheric microplastics in ambient air. Environ Sci Pollut Res Int 2023; 30:53662-53673. [PMID: 36859643 DOI: 10.1007/s11356-023-26117-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [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: 06/14/2022] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
Microplastics (< 5 mm) have lately been identified in the atmosphere of urban, suburban, and even distant places far from plastic particle areas, suggesting the possibility of long-distance atmospheric transport of microplastics. However, the occurrence, fate, transmission, and effects of these suspended atmospheric microplastics (SAMPs) are all currently unknown in the Philippines. This study investigated the presence of suspected microplastic in the atmosphere of sixteen cities and one municipality of Metro Manila, Philippines. Sampling was conducted using a respirable dust sampler mounted with a Whatman GF/C filter paper at an intake flow rate of 1.4 L/min with Whatman GF/C filter paper. Results reveal that all seventeen sampling areas have the presence of SAMPs. A total of 155 SAMPs were found and confirmed in Metro Manila, with the highest concentration in Muntinlupa City and Mandaluyong City (0.023 SAMP/NCM). Fourteen SAMP types were identified across the sampling areas, ⁓ 74% with polyester. This study is the first record of the presence of microplastics suspended in the ambient air in the Philippines. It is estimated that an adult person in Metro Manila has the potential to inhale (5-8 per minute, normal minute ventilation) about 1 SAMP if exposed for about 99.0 to 132 h. Further studies should be done to evaluate the fate and health effects of these SAMPs in Metro Manila's setting.
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Affiliation(s)
- Rodolfo A Romarate
- Environmental Science Program, Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, 9200, Iligan, Philippines.
| | - Sheila Mae B Ancla
- Environmental Science Program, Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, 9200, Iligan, Philippines
| | - Dawn May M Patilan
- Environmental Science Program, Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, 9200, Iligan, Philippines
| | - Sherley Ann T Inocente
- Department of Physical Sciences and Mathematics, College of Marine and Allied Sciences, Mindanao State University at Naawan, 9023, Naawan, Philippines
| | - Christine Joy M Pacilan
- Environmental Science Program, Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, 9200, Iligan, Philippines
| | - Astrid L Sinco
- Department of Biology, College of Arts and Sciences, Xavier University-Ateneo de Cagayan, 9000, Cagayan de Oro City, Philippines
| | - Jaime Q Guihawan
- Environmental Science Program, Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, 9200, Iligan, Philippines
| | - Rey Y Capangpangan
- Department of Physical Sciences and Mathematics, College of Marine and Allied Sciences, Mindanao State University at Naawan, 9023, Naawan, Philippines
| | - Arnold A Lubguban
- Department of Chemical Engineering and Technology, College of Engineering and Technology, Mindanao State University-Iligan Institute of Technology, 9200, Iligan, Philippines
- Center for Sustainable Polymers, Mindanao State University-Iligan Institute of Technology, 9200, Iligan, Philippines
| | - Hernando P Bacosa
- Environmental Science Program, Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, 9200, Iligan, Philippines
- Center for Sustainable Polymers, Mindanao State University-Iligan Institute of Technology, 9200, Iligan, Philippines
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Pinlova B, Nowack B. Characterization of fiber fragments released from polyester textiles during UV weathering. Environ Pollut 2023; 322:121012. [PMID: 36623791 DOI: 10.1016/j.envpol.2023.121012] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [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: 09/01/2022] [Revised: 01/01/2023] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
Synthetic textiles are considered a prime source of microplastics fibers which are a prevalent shape of microplastic pollution. Whilst the release mechanisms and formation of such microplastic fibers have been so far mainly studied in connection with laundry washing, there are some studies emerging that describe also other release pathways for microplastic fibers such as abrasion during wearing. The aim of this study was to consider weathering as another process contributing to the formation of microplastic fibers and their presence in the environment. Four types of polyester fabrics were selected and exposed to artificial weathering by UV-light for two months. The fabrics were extracted every 15 days to quantify and characterize the formed microplastics. Microplastic fibers with the diameter matching the size of the fibers in the textiles were observed. However, additional microplastic fibers of different shapes were also formed. These included partially broken fibers, thin fibers with a diameter below the size of the fiber in the fabrics, fibers flattened into a ribbon, and non-fibrous microplastics. The released microplastics evinced physical alterations on their surface in the form of pits and cracks. The released microplastics exhibited a steep increase in number with progressing weathering; from hundreds of fibers per gram of textile from unaged fabrics, to hundred thousands fibers (150,000-450,000 MPF/g) after 2 months of weathering. Additional 10,000-52,000 unfibrous microplastics/g were released from the weathered fabrics. While plain fabrics showed higher releases than interlock and fleece, further research is needed to evaluate the importance of the textile architecture on the weathering process in comparison with the production history of the fabrics. Based on a comparison with washing studies with the same textiles, we can estimate that the potential of weathered fabrics to be a source of microplastic fibers can be 20-40 times larger than washing only.
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Affiliation(s)
- Barbora Pinlova
- Technology and Society Laboratory, Empa - Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Bernd Nowack
- Technology and Society Laboratory, Empa - Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland.
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da Costa ID, Costa LL, da Silva Oliveira A, de Carvalho CEV, Zalmon IR. Microplastics in fishes in amazon riverine beaches: Influence of feeding mode and distance to urban settlements. Sci Total Environ 2023; 863:160934. [PMID: 36539082 DOI: 10.1016/j.scitotenv.2022.160934] [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: 10/03/2022] [Revised: 12/09/2022] [Accepted: 12/11/2022] [Indexed: 06/17/2023]
Abstract
Microplastic (MP) pollution is a global problem and has affected several biological levels even in protected areas. In the present study, MP contamination was investigated in fish associated with sandy beaches in a permanent environmental protection area in the Amazon. In order to achieve this goal, the shape, color, abundance, richness, and chemical composition of MPs in the digestive tract of 29 fish species in 24 beaches of the Machado River, western Brazilian Amazon, were evaluated. Linear mixed models (LMMs) were adjusted to test the effects of local human modification (HMc), distance from urban settlements, distance from the closest affluent, and trophic categories of fish species on microplastic abundance and richness in their digestive tracts. From the 1082 fish analyzed, 332 (30 %) presented MPs in their digestive tracts. A total of 617 MPs was found (1.8 ± 1.6 MPs; 4.5 ± 1.9 MPs/g fish). Omnivorous and insectivorous fish presented more MPs in sandy beaches located closer to urban settlements. However, carnivorous fish presented a higher abundance of MPs in their digestive tracts compared with the other trophic guilds. This is the first study to analyze plastic contamination in fish associated with sandy beaches in the Amazon (Brazil), and it revealed contamination of the ichthyofauna mainly related to the distance from urban settlements. Our results reinforce the need for better management of landscape surrounding protected areas to mitigate MP pollution.
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Affiliation(s)
- Igor David da Costa
- Departamento de Ciências Exatas, Biológicas e da Terra, Universidade Federal Fluminense, Santo Antônio de Pádua, 28470-000 Rio de Janeiro, Brazil; Mestrado Profissional em Gestão e Regulação de Recursos Hídricos, Universidade Federal de Rondônia, 76900-726 Rondônia, Brazil.
| | - Leonardo Lopes Costa
- Laboratório de Ciências Ambientais, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes, 28013-602 Rio de Janeiro, Brazil
| | - Ariane da Silva Oliveira
- Laboratório de Ciências Ambientais, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes, 28013-602 Rio de Janeiro, Brazil
| | - Carlos Eduardo Veiga de Carvalho
- Laboratório de Ciências Ambientais, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes, 28013-602 Rio de Janeiro, Brazil
| | - Ilana Rosental Zalmon
- Laboratório de Ciências Ambientais, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes, 28013-602 Rio de Janeiro, Brazil.
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Shafiq M, Yuan Z, Rafique M, Aishima S, Jing H, Yuqing L, Ijima H, Jiang S, Mo X. Combined effect of SDF-1 peptide and angiogenic cues in co-axial PLGA/gelatin fibers for cutaneous wound healing in diabetic rats. Colloids Surf B Biointerfaces 2023; 223:113140. [PMID: 36669437 DOI: 10.1016/j.colsurfb.2023.113140] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 01/03/2023] [Accepted: 01/08/2023] [Indexed: 01/12/2023]
Abstract
Skin regeneration is hindered by poor vascularization, prolonged inflammation, and excessive scar tissue formation, which necessitate newer strategies to simultaneously induce blood vessel regeneration, resolve inflammation, and induce host cell recruitment. Concurrent deployment of multiple biological cues to realize synergistic reparative effects may be an enticing avenue for wound healing. Herein, we simultaneously deployed SDF (stromal cell-derived factor)- 1α, VEGF (vascular endothelial growth factor)-binding peptide (BP), and GLP (glucagon like peptide)- 1 analog, liraglutide (LG) in core/shell poly(L-lactide-co-glycolide)/gelatin fibers to harness their synergistic effects for skin repair in healthy as well as diabetic wound models in rats. Microscopic techniques, such as SEM and TEM revealed fibrous and core/shell type morphology of membranes. Boyden chamber assay and scratch-wound assay displayed significant migration of HUVECs (human umbilical vein endothelial cells) in SDF-1α containing fibers. Subcutaneous implantation of membranes revealed higher cellular infiltration in SDF-1α loaded fibers, especially, those which were co-loaded with LG or BP. Implantation of membranes in an excisional wound model in healthy rats further showed significant and rapid wound closure in dual cues loaded groups as compared to control or single cue loaded groups. Similarly, the implantation of dressings in type 2 diabetes rat model revealed fast healing, skin appendages regeneration, and blood vessel regeneration in dual cues loaded fibers (SDF-1α/LG, SDF-1α/BP). Taken together, core/shell type fibers containing bioactive peptides significantly promoted wound repair in healthy as well as diabetic wound models in rats.
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Affiliation(s)
- Muhammad Shafiq
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China; Department of Chemical Engineering, Faculty of Engineering, Graduate School, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Zhengchao Yuan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Muhammad Rafique
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Shinichi Aishima
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Nabeshima 5-1-1, Saga 849-8501, Japan
| | - Hou Jing
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Liang Yuqing
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Hiroyuki Ijima
- Department of Chemical Engineering, Faculty of Engineering, Graduate School, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Shichao Jiang
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China; Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, China.
| | - Xiumei Mo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China.
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Lyu Y, Ji XX, Tian Z, Ji H, Zhang F, Dai L, Xie H, Si C. A cascade valorization of Kenaf stalk for the preparation of lignin sunscreens and papermaking. Int J Biol Macromol 2023; 230:123122. [PMID: 36603721 DOI: 10.1016/j.ijbiomac.2022.123122] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 12/28/2022] [Accepted: 12/29/2022] [Indexed: 01/04/2023]
Abstract
Lignin has been regarded as a potential natural sun screening agent. However, the dark color of traditional industrial lignin hinders its application in the field of skincare. In this study, a green and facile approach was developed to extract light-colored lignin. p-Toluenesulfonic acid (p-TsOH) was used to separate lignin and fibers from Kenaf stalks. During the isolation of lignin, formaldehyde was added to preserve the β-O-4 bonds of lignins in the form of stable acetals. The obtained lignin was further employed to prepare nanoparticles (LNPs) as sunscreen additives. After adding 4 wt% LNPs, the SPF values of the cream increased from 7.05 to 27.84. The residual fibers from the Kenaf stalks can be utilized for papermaking as the raw materials. by mixing them with softwood pulp to reduce the consumption of commercial pulp. With the addition of 5 wt% residual fibers in commercial softwood pulp, the produced paper showed better mechanical properties. The ring crush strength index and tear index of the samples increased from 2.49 N·m/g and 4.63 mN·m2/g to 2.62 N·m/g and 4.75 mN·m2/g, respectively. This study paved a way for the comprehensive utilization of Kenaf stalks towards not only papermaking but also daily chemical products.
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Affiliation(s)
- Yingren Lyu
- State Key Laboratory of Bio-based Materials and Green Papermaking, Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan, Shandong 250353, China
| | - Xing-Xiang Ji
- State Key Laboratory of Bio-based Materials and Green Papermaking, Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan, Shandong 250353, China
| | - Zhongjian Tian
- State Key Laboratory of Bio-based Materials and Green Papermaking, Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan, Shandong 250353, China; Shandong Huatai Paper Co., Ltd, Dongying, Shandong 257335, China.
| | - Hairui Ji
- State Key Laboratory of Bio-based Materials and Green Papermaking, Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan, Shandong 250353, China
| | - Fengshan Zhang
- Shandong Huatai Paper Co., Ltd, Dongying, Shandong 257335, China
| | - Lin Dai
- State Key Laboratory of Bio-based Materials and Green Papermaking, Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan, Shandong 250353, China; Tianjin Key Laboratory of Pulp and Paper, College of Light Industry and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Hongxiang Xie
- State Key Laboratory of Bio-based Materials and Green Papermaking, Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan, Shandong 250353, China; Tianjin Key Laboratory of Pulp and Paper, College of Light Industry and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Chuanling Si
- State Key Laboratory of Bio-based Materials and Green Papermaking, Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan, Shandong 250353, China; Tianjin Key Laboratory of Pulp and Paper, College of Light Industry and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China; National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass, Nanjing Forestry University, Nanjing 210037, China.
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Hafeez S, Qadir A, Aslam M, Aslam HMU, Rehmat MS, Ahmad SR. Environmental Risks of Microplastics on the Spatial and Temporal Gradient in a River Originating from the Western Himalayas. Environ Toxicol Chem 2023; 42:727-739. [PMID: 36636893 DOI: 10.1002/etc.5559] [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: 09/12/2022] [Revised: 11/10/2022] [Accepted: 01/04/2023] [Indexed: 06/17/2023]
Abstract
The presence of microplastics in different environmental matrices has raised many concerns about potential effects of microplastics on humans and freshwater ecosystems. In Pakistan, rivers potentially receive microplastics from anthropogenic activities in their catchments. However, research studies regarding microplastics' presence, distribution, and risks are scarce in Pakistan. To bridge the gap, the present study was conducted to evaluate microplastic pollution in the Chenab River. Surface water samples were collected from selected sites on the Chenab River using a manta trawl in the low-flow season during postmonsoon (October) 2019 and 2020 and in the high-flow season during monsoon (July) 2020 and 2021. Samples were digested, followed by density separation and filtration. Identification and polymer characterization of microplastics were completed using stereomicroscopy and attenuated total reflection Fourier transform infrared spectroscopy, respectively. Microplastics were found in all samples with significant spatiotemporal variation in microplastic concentration, with an average of 45.98 ± 10.45 microplastics/m3 in the low-flow season and 34.66 ± 16.15 microplastics/m3 in the high-flow season. Among microplastic shapes, fibers were the most dominant shape, whereas polyethylene terephthalate (38.2%) and polypropylene (19%) were the most abundant polymers. Polymer risk index analysis and pollution load index demonstrated that most of the sites ranked as safe. The potential ecological risks from single polymers and combined polymers showed minor risks posed by microplastics. The present study is the first step to focus on microplastic pollution in the Chenab River; it will help river managers to mitigate the microplastic pollution without compromising the ecological integrity of the river. Environ Toxicol Chem 2023;42:727-739. © 2023 SETAC.
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Affiliation(s)
- Saba Hafeez
- College of Earth & Environmental Sciences, University of the Punjab, Lahore, Pakistan
| | - Abdul Qadir
- College of Earth & Environmental Sciences, University of the Punjab, Lahore, Pakistan
| | - Mehmood Aslam
- College of Earth & Environmental Sciences, University of the Punjab, Lahore, Pakistan
| | | | | | - Sajid Rashid Ahmad
- College of Earth & Environmental Sciences, University of the Punjab, Lahore, Pakistan
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Nayeri D, Mousavi SA, Almasi A, Asadi A. Microplastic abundance, distribution, and characterization in freshwater sediments in Iran: a case study in Kermanshah city. Environ Sci Pollut Res Int 2023; 30:49817-49828. [PMID: 36781678 DOI: 10.1007/s11356-023-25620-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 03/23/2022] [Accepted: 01/25/2023] [Indexed: 02/15/2023]
Abstract
This paper focuses on abundance, distribution, and characteristics of microplastics (MPs) in freshwater sediments of Sarab Niloofar Lake, Kermanshah, Iran. After selecting an appropriate method for extraction of MPs, the characterization such as polymer types, surface morphology, and trace elements has been determined using Fourier transform infrared spectroscopy, scanning electron microscopic, and energy-dispersive X-ray spectroscopic analysis, respectively. The results highlighted that all sampling locations were contaminated by MP abundance ranged from 1733.33 to 4400 items kg-1 d.w with an average of 2483.59 ± 805.30 items kg-1 d.w. MPs with a size range of 0.025 to 1 mm (25-1000 μm) were the most frequently detected MPs in size (62%). Furthermore, the MPs found in this area mainly contain fiber (61%), fragment (19%), film (9%), foam (6%), and pallet (5%). The main color for detected MPs in sampling stations was black (51%) and followed by white/transparent (27%), red (11%), blue (7%), and yellow (4%). The results of polymer identification revealed that the polyethylene, polystyrene, polyurethane, and polypropylene were the principal polymers. This research work emphasized that various types of MPs have been distributed in freshwater sediments of Sarab Niloofar Lake, which is a first useful data for MPs in one the most important Kermanshah's tourist area.
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Affiliation(s)
- Danial Nayeri
- Department of Environmental Health Engineering, School of Public Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Seyyed Alireza Mousavi
- Department of Environmental Health Engineering, School of Public Health, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Ali Almasi
- Department of Environmental Health Engineering, School of Public Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Anvar Asadi
- Environmental Health Research Center, Research Institute for Health Department, Kurdistan University of Medical Sciences, Sanandaj, Iran
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Galvão LS, Ferreira RR, Fernandes EMS, Correia CA, Valera TS, Dos Santos Rosa D, Wiebeck H. Analysis of selective fluorescence for the characterization of microplastic fibers: Use of a Nile Red-based analytical method to compare between natural and synthetic fibers. J Hazard Mater 2023; 443:130217. [PMID: 36283213 DOI: 10.1016/j.jhazmat.2022.130217] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 08/03/2022] [Revised: 10/16/2022] [Accepted: 10/18/2022] [Indexed: 06/16/2023]
Abstract
The scientific community has been focusing on studying and understanding the extent of damage caused by microplastics (MPs) to flora, fauna, and humans, including the environmental and health risks associated with them. MPs with different morphologies have been described in different environments, with fibers being the most common type regardless of the environment. Various methods have been used to analyze MPs. Analytical methodologies such as visual inspection, spectroscopic methods, and others currently used to study MPs are time-consuming, and only subjective results are obtained when these methods are used for sample analysis. Researchers have used various dyes, such as Nile Red (NR), a selective fluorescent stain, to differentiate the polymers from the other sample components and address these problems. Using such dyes helps distinguish polymer particles from other contaminants present in the samples. We aimed to study the analytical process, morphology, and wettability of synthetic (such as polyethylene and polypropylene) and natural (such as linen and cotton) fibers using NR to characterize the fibers. The fibers were fragmented manually, and the samples were prepared using a cryomicrotome. The prepared samples were subjected to different NR incubation times of 30 min, 24 h, and 168 h, and characterized under ultraviolet light using optical microscopy. We investigated the effect of NR on different fibers, and the samples selection using the fluorescence properties generated when the fibers adsorbed the NR dye. The wettabilities of the samples indicated that polyethylene and polypropylene were hydrophobic, while linen and cotton were hydrophilic. Both synthetic and natural fibers exhibited fluorescence properties in the presence of NR. This increased the complexity of executing the MP characterization process, indicating that combined methodologies and optical and chemical identification processes should be used to characterize plastic specimens efficiently. We summarize and discuss the results and findings and provide recommendations for future laboratory research on microplastic fibers focusing on (I) microplastic selection, (II) stain preparation, and (III) microplastic characterization.
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Affiliation(s)
- Luciana S Galvão
- Department of Metallurgical Engineering and Materials, University of São Paulo (USP), São Paulo, SP, Brazil; Laboratory of Chemistry and Manufactured Goods - Institute for Technological Research (IPT), São Paulo, SP, Brazil.
| | - Rafaela R Ferreira
- Center for Engineering, Modeling, and Applied Social Sciences - CECS, Federal University of ABC (UFABC), São Paulo, 09210-580, Brazil
| | - Emília M S Fernandes
- Center for Engineering, Modeling, and Applied Social Sciences - CECS, Federal University of ABC (UFABC), São Paulo, 09210-580, Brazil
| | - Carla Almêda Correia
- Department of Metallurgical Engineering and Materials, University of São Paulo (USP), São Paulo, SP, Brazil
| | - Ticiane S Valera
- Department of Metallurgical Engineering and Materials, University of São Paulo (USP), São Paulo, SP, Brazil
| | - Derval Dos Santos Rosa
- Center for Engineering, Modeling, and Applied Social Sciences - CECS, Federal University of ABC (UFABC), São Paulo, 09210-580, Brazil.
| | - Hélio Wiebeck
- Department of Metallurgical Engineering and Materials, University of São Paulo (USP), São Paulo, SP, Brazil.
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Hossain MN, Rahman MM, Afrin S, Akbor MA, Siddique MAB, Malafaia G. Identification and quantification of microplastics in agricultural farmland soil and textile sludge in Bangladesh. Sci Total Environ 2023; 858:160118. [PMID: 36379331 DOI: 10.1016/j.scitotenv.2022.160118] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [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: 09/20/2022] [Revised: 11/06/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
Although microplastic (MP) pollution of aquatic ecosystems is a high-priority study topic, the issue of terrestrial environment and textile manufacturing waste has received little attention. Thus, this study was carried out to investigate the presence of MPs in agricultural land near textile industries and textile sludge samples in Bangladesh. Thirty-two soil samples from four agricultural farmland and five sludge samples were collected and analyzed. We show that the MPs content from agricultural farmland soil and textile sludge samples was 2.13 × 104 ± 0.13 × 104 MPs/kg and 2.92 × 104 ± 0.14 × 104 MPs/kg, respectively. MPs with a size between 1.0 and 1.5 mm were the least frequent in both soil and textile sludge samples. Fibers were more prevalent in textile sludge and fragments in soil samples. In addition, the percentage of transparent/white MPs was higher in the soil samples, and those classified as "multicolor" and "others" were more frequent in the sludge samples. Nine types of polymers were identified in the soil samples: PS, EVA, latex, HDPE, PVC, ABS, CA, LDPE, and PP. Except for LDPE, all these polymers were also found in the textile sludge samples, in addition to PU, nylon, and FEP, totaling eleven polymer types. On the other hand, we did not find evidence to support the association between MP contamination in soil samples and MPs identified in textile sludge samples. As demonstrated in the principal components analysis (PCA), the analyzed samples were separated by PC1, which suggests that the MPs reported in the soil come from sources that are not directly related to the textile industries. Thus, further research is needed to fully reveal MPs' fate and ecological risks in the soil environment and textile sludge, and necessary action is required to control MP pollution in terrestrial ecosystems.
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Affiliation(s)
- Md Nayon Hossain
- Department of Environmental Sciences, Jahangirnagar University, Dhaka 1342, Bangladesh
| | - Md Mostafizur Rahman
- Department of Environmental Sciences, Jahangirnagar University, Dhaka 1342, Bangladesh; Laboratory of Environmental Health and Ecotoxicology, Department of Environmental Sciences, Jahangirnagar University, Dhaka 1342, Bangladesh.
| | - Sadia Afrin
- Department of Environmental Sciences, Jahangirnagar University, Dhaka 1342, Bangladesh
| | - Md Ahedul Akbor
- Institute of National Analytical Research and Service (INARS), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhanmondi, Dhaka 1205, Bangladesh
| | - Md Abu Bakar Siddique
- Institute of National Analytical Research and Service (INARS), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhanmondi, Dhaka 1205, Bangladesh
| | - Guilherme Malafaia
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil.
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De Vos B, De Souza MF, Michels E, Meers E. Industrial hemp (Cannabis sativa L.) field cultivation in a phytoattenuation strategy and valorization potential of the fibers for textile production. Environ Sci Pollut Res Int 2023; 30:41665-41681. [PMID: 36637648 DOI: 10.1007/s11356-023-25198-z] [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: 08/31/2022] [Accepted: 01/04/2023] [Indexed: 01/14/2023]
Abstract
This paper evaluates the valorization potential of industrial hemp (Cannabis sativa L.) fibers produced on HM-contaminated soil as a safe feedstock for the textile industry. The chosen strategy was phytoattenuation, which combines the progressive soil quality improvement of contaminated land using phytoremediation techniques with the production of safe non-food biomass. A field experiment was set up with two hemp cultivars on a site contaminated with Cd, Pb, and Zn and on a nearby site containing clean soil as a control. Stem height and diameter were analyzed, as well as stem and fiber yield and the HM concentrations in the fibers, which were compared to legal safety standards and toxicity thresholds used in the textile industry. The hemp cultivar Carmagnola Selected (CS) had a significantly higher stem and bigger stem diameter compared to cultivar USO 31 on both sites. Stem yields showed a decrease of 30% and 50%, respectively, for both hemp cultivars grown on the contaminated site. However, the stem yield of CS growing on the contaminated site was similar to the stem yield of USO 31 growing on the control site, indicating that hemp cultivation on contaminated soil can be economically viable. Total and extractable Cd, Pb, and Zn fiber concentrations were far below the toxicity standards for textile production purposes. These results are promising in terms of the potential valorization of contaminated land with hemp cultivation and the development of a non-food value chain within a phytoattenuation strategy.
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Affiliation(s)
- Béatrice De Vos
- Department of Green Chemistry and Technology, Laboratory for Bioresource Recovery, Ghent University, Coupure Links 653, B-9000, Ghent, Belgium.
| | - Marcella Fernandez De Souza
- Department of Green Chemistry and Technology, Laboratory for Bioresource Recovery, Ghent University, Coupure Links 653, B-9000, Ghent, Belgium
| | - Evi Michels
- Department of Green Chemistry and Technology, Laboratory for Bioresource Recovery, Ghent University, Coupure Links 653, B-9000, Ghent, Belgium
| | - Erik Meers
- Department of Green Chemistry and Technology, Laboratory for Bioresource Recovery, Ghent University, Coupure Links 653, B-9000, Ghent, Belgium
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Pierantoni M, Hammerman M, Silva Barreto I, Andersson L, Novak V, Isaksson H, Eliasson P. Heterotopic mineral deposits in intact rat Achilles tendons are characterized by a unique fiber-like structure. J Struct Biol X 2023; 7:100087. [PMID: 36938139 PMCID: PMC10018562 DOI: 10.1016/j.yjsbx.2023.100087] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 02/16/2023] [Accepted: 02/19/2023] [Indexed: 02/26/2023] Open
Abstract
Heterotopic mineralization entails pathological mineral formation inside soft tissues. In human tendons mineralization is often associated with tendinopathies, tendon weakness and pain. In Achilles tendons, mineralization is considered to occur through heterotopic ossification (HO) primarily in response to tendon pathologies. However, refined details regarding HO deposition and microstructure are unknown. In this study, we characterize HO in intact rat Achilles tendons through high-resolution phase contrast enhanced synchrotron X-ray tomography. Furthermore, we test the potential of studying local tissue injury by needling intact Achilles tendons and the relation between tissue microdamage and HO. The results show that HO occurs in all intact Achilles tendons at 16 weeks of age. HO deposits are characterized by an elongated ellipsoidal shape and by a fiber-like internal structure which suggests that some collagen fibers have mineralized. The data indicates that deposition along fibers initiates in the pericellular area, and propagates into the intercellular area. Within HO deposits cells are larger and more rounded compared to tenocytes between unmineralized fibers, which are fewer and elongated. The results also indicate that multiple HO deposits may merge into bigger structures with time by accession along unmineralized fibers. Furthermore, the presence of unmineralized regions within the deposits may indicate that HOs are not only growing, but mineral resorption may also occur. Additionally, phase contrast synchrotron X-ray tomography allowed to distinguish microdamage at the fiber level in response to needling. The needle injury protocol could in the future enable to elucidate the relation between local inflammation, microdamage, and HO deposition.
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Affiliation(s)
- Maria Pierantoni
- Department of Biomedical Engineering, Lund University, Box 118, 221 00 Lund, Sweden
- Corresponding author.
| | - Malin Hammerman
- Department of Biomedical Engineering, Lund University, Box 118, 221 00 Lund, Sweden
- Department of Biomedical and Clinical Sciences, Linköping University, 581 83 Linköping, Sweden
| | | | - Linnea Andersson
- Department of Biomedical Engineering, Lund University, Box 118, 221 00 Lund, Sweden
| | - Vladimir Novak
- Swiss Light Source, Paul Scherrer Institute, CH-5232 Villigen, Switzerland
| | - Hanna Isaksson
- Department of Biomedical Engineering, Lund University, Box 118, 221 00 Lund, Sweden
| | - Pernilla Eliasson
- Department of Biomedical and Clinical Sciences, Linköping University, 581 83 Linköping, Sweden
- Department of Orthopaedics, Sahlgrenska University Hospital, Gothenburg, Sweden
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Addo S, Boateng CM, Diyie RL, Duodu CP, Ferni AK, Williams EA, Amakye AO, Asamoah O, Danso -Abbeam H, Nyarko E. Occurrence of microplastics in wild oysters ( Crassostrea tulipa) from the Gulf of Guinea and their potential human exposure. Heliyon 2022; 8:e12255. [PMID: 36568671 PMCID: PMC9768316 DOI: 10.1016/j.heliyon.2022.e12255] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/22/2022] [Accepted: 12/02/2022] [Indexed: 12/14/2022] Open
Abstract
The high dependence on plastics in Ghana has resulted in the generation of large quantities of plastic waste which are poorly managed and improperly disposed into the aquatic environments. This study assessed the spatial distribution and abundance of microplastics in mangrove oysters (Crassostrea tulipa): a major fishery resource of commercial importance in Ghana. The results showed that 84.0% of all individuals examined had ingested microplastics. A total of 276 microplastic items were recovered from the 120 individual oysters. Densu (100%) and Volta (93%), two estuaries situated in urban areas, had a greater incidence of microplastics than Whin (77%) and Nakwa (66%), estuaries situated in peri-urban and rural settlements, respectively. The mean microplastic abundance ranged from 1.4 to 3.4 items/individual and 0.34 to 1.7 items/g tissue wet weight. Fiber accounted for 69% of microplastic shapes, followed by fragments (27%) and films (4%). Polymer analysis showed polyethylene (PE), polypropylene (PP) and polystyrene (PS) as the most common types in oysters. The estimated microplastic intake per capita per year was one magnitude higher than the mean for other countries. This high rate of human exposure to microplastics requires an eminent policy formulation to guide the use, management and disposal of plastic waste in Ghana.
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Affiliation(s)
- Samuel Addo
- Department of Marine and Fisheries Sciences, School of Biological Sciences, University of Ghana, P. O. Box LG 99. Accra, Ghana
| | - Charles Mario Boateng
- Department of Marine and Fisheries Sciences, School of Biological Sciences, University of Ghana, P. O. Box LG 99. Accra, Ghana
- Corresponding author.
| | - Rhoda Lims Diyie
- Council for Scientific and Industrial Research, Water Research Institute (CSIR-WRI), P. O. Box AH 38, Accra, Ghana
| | - Collins Prah Duodu
- Department of Marine and Fisheries Sciences, School of Biological Sciences, University of Ghana, P. O. Box LG 99. Accra, Ghana
| | - Anyan Kofi Ferni
- Department of Marine and Fisheries Sciences, School of Biological Sciences, University of Ghana, P. O. Box LG 99. Accra, Ghana
| | - Ernestina Abbew Williams
- Department of Marine and Fisheries Sciences, School of Biological Sciences, University of Ghana, P. O. Box LG 99. Accra, Ghana
| | - Akosua Ohemaa Amakye
- Department of Marine and Fisheries Sciences, School of Biological Sciences, University of Ghana, P. O. Box LG 99. Accra, Ghana
| | - Obed Asamoah
- University of Development Studies, P. O. Box TL 1350, Tamale, Ghana
| | - Harriet Danso -Abbeam
- Environmental Resources Research Centre, Ghana Atomic Energy Commission, Post Office Box LG 80, Legon, Accra, Ghana
| | - Elvis Nyarko
- Regional Maritime University, Post Office Box GP 1115, Accra, Ghana
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Chubarenko I, Lazaryuk A, Orlova T, Lobchuk O, Raguso C, Zyubin A, Lasagni M, Saliu F. Microplastics in the first-year sea ice of the Novik Bay, Sea of Japan. Mar Pollut Bull 2022; 185:114236. [PMID: 36257245 DOI: 10.1016/j.marpolbul.2022.114236] [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: 08/22/2022] [Revised: 10/05/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
Sea ice is heavily contaminated with microplastics particles (MPs, <5 mm). First-year sea ice cores (38-41 cm thick) were taken in the beginning of spring in a narrow populated bay of the Sea of Japan. Two ice cores were examined (layer-by-layer, excluding surface) for MPs content: one using μ-FTIR for 25-300 μm (SMPs), and another one - with visual+Raman identification for 300-5000 μm particles (LMPs). The integral (25-5000 μm) bulk mean abundance of MPs was found to be 428 items/L of meltwater, with fibers making 19 % in SMPs size range and 59 % in LMPs. Integral mean mass of MPs was estimated in 34.6 mg/L, with 99.6 % contribution from fragments of LMPs. Comparison with simple fragmentation models confirms deficit of SMPs (especially of fibers in size range 150-300 μm), suggested to result from their leakage with brine. Multivariate statistical analysis indicates strong positive correlation of large fiber (>300 μm) counts and ice salinity.
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Affiliation(s)
- Irina Chubarenko
- Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia.
| | - Alexander Lazaryuk
- Il'ichev Pacific Oceanological Institute, Russian Academy of Sciences, Vladivostok, Russia
| | - Tatiana Orlova
- Zhirmunsky National Scientific Center of Marine Biology, Russian Academy of Sciences, Vladivostok, Russia
| | - Olga Lobchuk
- Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia
| | - Clarissa Raguso
- Earth and Environmental Science Department (DISAT), University of Milano Bicocca, Piazza Della Scienza 1, 20126 Milano, Italy
| | - Andrey Zyubin
- Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - Marina Lasagni
- Earth and Environmental Science Department (DISAT), University of Milano Bicocca, Piazza Della Scienza 1, 20126 Milano, Italy
| | - Francesco Saliu
- Earth and Environmental Science Department (DISAT), University of Milano Bicocca, Piazza Della Scienza 1, 20126 Milano, Italy
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Loayza E, Trigoso Barrientos AC, Janssens GP. Evidence of microplastics in water and commercial fish from a high-altitude mountain lake (Lake Titicaca). PeerJ 2022; 10:e14112. [PMID: 36389423 PMCID: PMC9653051 DOI: 10.7717/peerj.14112] [Citation(s) in RCA: 2] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 09/02/2022] [Indexed: 11/11/2022] Open
Abstract
Microplastic pollution is a widespread environmental concern. Like other anthropogenic pollutants, microplastics can reach aquatic ecosystems through rivers and interact with the aquatic biota. For instance, Lake Titicaca (between Bolivia and Peru), one of the great ancient lakes in South America (3,809 m a.s.l.), shows a pollution problem, particularly in the southern shallow basin (Lago Menor) in Bolivia. Nevertheless, our knowledge of the presence of microplastics and their interaction with the biota of Lake Titicaca is limited. Therefore, this study evaluated the presence of microplastics in the stomach content of the four fish species targeted by local fisheries in Lago Menor of Lake Titicaca (Orestias luteus, Orestias agassizii, Trichomycterus dispar, and Odonthestes bonariensis; N = 1,283), and looked for relationships with trophic guilds or fishing areas. Additionally, surface water was analyzed to evaluate the presence of microplastics in the water. The evaluation of microplastics was carried out by visual observations. We observed that the frequency of microplastic ingestion was low in all species (<5%). Conversely, microplastic was present in the water, with the highest quantity at the southern part of Lago Menor (103 ± 20 particles per L), without differences in the microplastic number between sites. Most microplastics counted in stomach contents were fibers, whereas water samples mainly contained fragments. Our results point to microplastic pollution in Lago Menor of Lake Titicaca. However, we could not determine the pollution rate due to considerable methodological limitations. Further research will be needed to robustly detect microplastics in Lake Titicaca and their impact on the fish species in the lake.
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Affiliation(s)
- Erick Loayza
- Department of Veterinary and Biosciences, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium,Unidad de Ecología Acuática, Instituto de Ecología, Facultad de Ciencias Puras y Naturales, Universidad Mayor de San Andrés, La Paz, Bolivia
| | - Amaya C. Trigoso Barrientos
- Unidad de Ecología Acuática, Instituto de Ecología, Facultad de Ciencias Puras y Naturales, Universidad Mayor de San Andrés, La Paz, Bolivia
| | - Geert P.J. Janssens
- Department of Veterinary and Biosciences, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
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Nithin A, Sundaramanickam A, Iswarya P, Babu OG. Hazard index of microplastics contamination in various fishes collected off Parangipettai, Southeast coast of India. Chemosphere 2022; 307:136037. [PMID: 35995186 DOI: 10.1016/j.chemosphere.2022.136037] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [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: 03/27/2022] [Revised: 06/08/2022] [Accepted: 08/08/2022] [Indexed: 06/15/2023]
Abstract
The authors of the present research aimed to assess microplastics (MPs) contamination in the gills and gut of selected fishes from various aquatic zones and also to bring out the risks of the identified polymers. Accordingly, about 200 fish specimens of 10 different species were collected from the landing center at Parangipettai, southeast coast of India. The fishes were dissected to investigate MPs contamination in their gills and gut. The dissected tissues were acid digested and filtered to observe its microplastic contamination using a stereozoom microscope. In gills, Cynoglossus arel had the least contamination (0.4 ± 0.01 particles/ind) and Mugil cephalus had highest microplastic contamination (1.7 ± 0.01 particles/ind). In gut, C. arel had the minimum contamination (0.7 ± 0.09 particles/ind) and Rastrelliger kanagurta had maximum contamination (2.3 ± 0.26 particles/ind). The size of microplastics isolated from the present study ranged from 100 to 1000 μm. Among microplastic shapes, fibers (97%) and pellets (3%) were observed. About eight colours of microplastics were observed in the fishes among which black was dominant. Three polymers such as LDPE, PP and PS were identified by μFTIR, among which LDPE (57%) was dominant. Polymer Hazard Index denotes that LDPE (6.27), PP (3.4) and PS (2.7) have a PHI score of 1-10 classifying them in the hazard category II which has a medium risk. These polymers may directly enter the human body when consumed and cause health implications which require further investigation.
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Affiliation(s)
- Ajith Nithin
- Centre of Advance Study in Marine Biology, Faculty of Maine Sciences, Annamalai University Parangipettai, Tamil Nadu, India
| | - Arumugam Sundaramanickam
- Centre of Advance Study in Marine Biology, Faculty of Maine Sciences, Annamalai University Parangipettai, Tamil Nadu, India.
| | - Parthasarathy Iswarya
- Centre of Advance Study in Marine Biology, Faculty of Maine Sciences, Annamalai University Parangipettai, Tamil Nadu, India
| | - O Ganesh Babu
- Department of Civil, Anna University Regional Campus, Tirunelveli, India
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Mountris KA, Pueyo E. A meshless fragile points method for rule-based definition of myocardial fiber orientation. Comput Methods Programs Biomed 2022; 226:107164. [PMID: 36265289 DOI: 10.1016/j.cmpb.2022.107164] [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: 04/05/2022] [Revised: 09/18/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND AND OBJECTIVE Rule-based methods are commonly used to estimate the arrangement of myocardial fibers by solving the Laplace problem with appropriate Dirichlet boundary conditions. Existing algorithms are using the Finite Element Method (FEM) to solve the Laplace-Dirichlet problem. However, meshless methods are under development for cardiac electrophysiology simulation. The objective of this work is to propose a meshless rule based method for the determination of myocardial fiber arrangement without requiring a mesh discretization as it is required by FEM. METHODS The proposed method employs the Fragile Points Method (FPM) for the solution of the Laplace-Dirichlet problem. FPM uses simple discontinuous trial functions and single-point exact integration for linear trial functions that set it as a promising alternative to the Finite Element Method. We derive the FPM formulation of the Laplace-Dirichlet and we estimate ventricular and atrial fiber arrangements according to rules based on histology findings for four different geometries. The obtained fiber arrangements from FPM are compared with the ones obtained from FEM by calculating the angle between the fiber vector fields of the two methods for three different directions (i.e., longitudinal, sheet, transverse). RESULTS The fiber arrangements that were generated with FPM were in close agreement with the generated arrangements from FEM for all three directions. The mean angle difference between the FPM and FEM vector fields were lower than 0.030∘ for the ventricular fiber arrangements and lower than 0.036∘ for the atrial fiber arrangements. DISCUSSION The proposed meshless rule-based method was proven to generate myocardial fiber arrangements with very close agreement with FEM while alleviates the requirement for a mesh of the latter. This is of great value for cardiac electrophysiology solvers that are based on meshless methods since they require a well defined myocardial fiber arrangement to simulate accurately the propagation of electrical signals in the heart. Combining a meshless solution for both the determination of the fibers and the electrical signal propagation can allow for solution that do not require the definition of a mesh. To our knowledge, this work is the first one to propose a meshless rule-based method for myocardial fiber arrangement determination.
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Affiliation(s)
- Konstantinos A Mountris
- Aragón Institute for Engineering Research, University of Zaragoza, IIS Aragón, Zaragoza, Spain; CIBER in Bioengineering, Biomaterials & Nanomedicine (CIBER-BBN), Spain.
| | - Esther Pueyo
- Aragón Institute for Engineering Research, University of Zaragoza, IIS Aragón, Zaragoza, Spain; CIBER in Bioengineering, Biomaterials & Nanomedicine (CIBER-BBN), Spain.
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49
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Valencia-Castañeda G, Ibáñez-Aguirre K, Rebolledo UA, Capparelli MV, Páez-Osuna F. Microplastic contamination in wild shrimp Litopenaeus vannamei from the Huizache-Caimanero Coastal lagoon, SE Gulf of California. Bull Environ Contam Toxicol 2022; 109:425-430. [PMID: 35786731 DOI: 10.1007/s00128-022-03568-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 03/11/2022] [Accepted: 06/21/2022] [Indexed: 06/15/2023]
Abstract
We identified and characterized microplastics (MPs) in the gastrointestinal tract (GT), gills (GI), and exoskeleton (EX) of Litopenaeus vannamei in a coastal lagoon from the SE Gulf of California. The most common MPs were fibers and fragments with an average size of 403 ± 296 μm, in which the transparent and blue colors predominated. The abundance (items/g as wet weight (ww)) in the GT, GI, and EX was 114.7 ± 33.2, 13.7 ± 5.3 and 3.0 ± 0.5, respectively. The abundance of MPs per shrimp was 13.3 ± 1.1, while the abundance per individual (ww) was 0.9 ± 0.2 MPs/g. Considering the consumption of shrimp in Mexico, MP abundance, and shrimp consumption (discarding GI and EX), we estimated MP ingestion as 280 items/person/year. The results from this study can be used as background information for future MP biomonitoring in shrimp species of ecological and commercial importance.
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Affiliation(s)
- Gladys Valencia-Castañeda
- Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de Mexico, Unidad Académica Mazatlán, Mexico City, Mexico
| | - Karla Ibáñez-Aguirre
- Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de Mexico, Unidad Académica Mazatlán, Mexico City, Mexico
| | - Uriel Arreguin Rebolledo
- Centro de Ciencias Básicas, Departamento de Química, Universidad Autónoma de Aguascalientes, Aguascalientes, Mexico
| | - Mariana V Capparelli
- Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de Mexico, Estación El Carmen, Ciudad del Carmen, Campeche, Mexico
| | - Federico Páez-Osuna
- Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de Mexico, Unidad Académica Mazatlán, Mexico City, Mexico.
- Miembro de El Colegio de Sinaloa, Sinaloa, Mexico.
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50
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Lim YC, Chen CW, Cheng YR, Chen CF, Dong CD. Impacts of microplastics on scleractinian corals nearshore Liuqiu Island southwestern Taiwan. Environ Pollut 2022; 306:119371. [PMID: 35490995 DOI: 10.1016/j.envpol.2022.119371] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 12/24/2021] [Revised: 04/23/2022] [Accepted: 04/25/2022] [Indexed: 06/14/2023]
Abstract
Seawater, sediments, and three genera of wild scleractinian corals were collected from four coral reef areas nearshore Liuqiu Island, southwestern Taiwan. Abundance, characteristics (sizes, colors, shapes, and polymer types), and enrichment of microplastics (MPs) in the corals, and their impacts on coral cover were determined. The average MPs abundances were 0.95, 0.77, and 0.36 item/g for Galaxea sp, Acropora spp, and Pocillopora sp, respectively. The MPs abundance was relatively higher on the coral surfaces than inside the skeletons, dominated by blue rayon-fibers, correspondingly observed in seawater and sediments. Large-size colorless MPs tended to be mis-ingested by Galaxea sp. (71%) compared with Pocillopora sp. (43%) and Acropora spp. (31%). The low hard coral cover (12.5%) observed at Yufu (L1) on the northeastern coastal zone nearby tourism center of Liuqiu Island where correspondingly associated with high MPs abundance in seawater (10 item/L), sediments (260 item/kg), and corals (0.60 item/g). Tourism induced sewage discharges and sailing activities significantly contributed to the MPs pollution, probably contributing to the loss of coral cover. High MPs enrichment in corals (EFMP = 25-283) shows that the marine MPs pollution can critically threaten coral reef ecosystems. Fibrous MPs present inside the coral skeleton serve as potential indicator of MPs' impact on corals-with the dominance of textile-related rayon and polyester/PET microfibers in the coral reef zones. This study provided valuable information for coral conservation and coastal management.
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Affiliation(s)
- Yee Cheng Lim
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, 81157, Taiwan
| | - Chiu-Wen Chen
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, 81157, Taiwan
| | - Yu-Rong Cheng
- Department of Fisheries Production and Management, National Kaohsiung University of Science and Technology, Kaohsiung City, 81157, Taiwan
| | - Chih-Feng Chen
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, 81157, Taiwan
| | - Cheng-Di Dong
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, 81157, Taiwan.
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