Microplastics and nanoplastics最新文献_第6页

Microplastic Pollution in Sea Turtle Nests on the Beaches of Nautla and Vega de Alatorre, Veracruz 韦拉克鲁斯州纳特拉和维加德阿拉托雷海滩上的海龟巢中的微塑料污染

Microplastics and nanoplastics Pub Date : 2023-05-12 DOI: 10.3390/microplastics2020014

Belem Anahy Estrella-Jordan, F. Lango-Reynoso, M. Castañeda-Chávez, Jesús Montoya-Mendoza, David Reynier-Valdés

引用次数: 1

Protocol for the production of micro- and nanoplastic test materials 微塑料和纳米塑料试验材料生产规程

Microplastics and nanoplastics Pub Date : 2023-05-05 DOI: 10.1186/s43591-023-00058-2

Luke A. Parker, E. M. Höppener, Edward van Amelrooij, S. Henke, I. Kooter, K. Grigoriadi, Merel G. A. Nooijens, A. M. Brunner, A. Boersma

引用次数: 1

Development of a machine learning-based method for the analysis of microplastics in environmental samples using µ-Raman spectroscopy 开发了一种基于机器学习的方法，用于使用微拉曼光谱分析环境样品中的微塑料

Microplastics and nanoplastics Pub Date : 2023-04-25 DOI: 10.1186/s43591-023-00057-3

Felix Weber, Andreas Zinnen, Jutta Kerpen

引用次数: 0

Hot or not: systematic review and laboratory evaluation of the hot needle test for microplastic identification 热或不热:微塑料鉴定热针试验的系统综述和实验室评价

Microplastics and nanoplastics Pub Date : 2023-04-24 DOI: 10.1186/s43591-023-00056-4

B. Beckingham, Adriana Apintiloaiei, C. Moore, Jay Brandes

引用次数: 5

Exploring expert perceptions about microplastics: from sources to potential solutions 探索专家对微塑料的看法：从来源到潜在解决方案

Microplastics and nanoplastics Pub Date : 2023-04-11 DOI: 10.1186/s43591-023-00055-5

Maja Grünzner, S. Pahl, M. White, Richard C. Thompson

引用次数: 0

Microplastic Contamination in Cultured Mussels and Pearl Oysters in Greece 希腊养殖贻贝和珍珠贝中的微塑料污染

Microplastics and nanoplastics Pub Date : 2023-04-03 DOI: 10.3390/microplastics2020013

Stefania M. Manolaki, Dimitra Chatzivasileiou, Maria Lampa, Panagiotis D. Dimitriou, A. Philippidis, Ioannis Karakassis, N. Papageorgiou

{"title":"Microplastic Contamination in Cultured Mussels and Pearl Oysters in Greece","authors":"Stefania M. Manolaki, Dimitra Chatzivasileiou, Maria Lampa, Panagiotis D. Dimitriou, A. Philippidis, Ioannis Karakassis, N. Papageorgiou","doi":"10.3390/microplastics2020013","DOIUrl":"https://doi.org/10.3390/microplastics2020013","url":null,"abstract":"Τhis study aims to measure the abundance of microplastic (MP) particles in the soft tissue of mussel (Mytilus galloprovincialis) and pearl oyster (Pinctada imbricata radiata) specimens. Samples were collected at four sites in Greece (Sagiada, Malesina, Elounda, Rhodes) from wild and farmed populations. The identification of MPs was accomplished by Raman spectroscopy. Comparisons were made between the two different species where the two species co-existed (Malesina), between the four study sites (five sampling stations) in relation to P. imbricata radiata individuals, and also in every station for the different MP types found. For the specimens from Malesina, M. galloprovincialis had more MPs in their soft tissue compared to P. imbricata radiata. Microfibers were found in abundance in M. galloprovincialis, while microfragments were found in P. imbricata radiata specimens. The main MP type found in P. imbricata radiata specimens was microfragments in all five sampling stations, and ranged between 1.54 ± 0.63 (Rhodes-baskets) and 3.56 ± 0.35 (Sagiada) MP particles/g. While the samples of mussels and pearl oysters were similar in age, the differences found in the concentrations of MPs appears to be due to their different farming methods and location characteristics concerning the five sampling stations of pearl oysters. This study indicates that the culturing system does not affect MP concentration in bivalves, and further investigation is needed to find the most appropriate method to limit and reduce MPs that end up in the farmed organisms.","PeriodicalId":74190,"journal":{"name":"Microplastics and nanoplastics","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91367753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Promotion of DNA Adsorption onto Microplastics by Transition Metal Ions 过渡金属离子促进DNA在微塑料上的吸附

Microplastics and nanoplastics Pub Date : 2023-03-06 DOI: 10.3390/microplastics2010012

Lyuyuan Wu, Kshiti Patel, Mohamad Zandieh, Juewen Liu

{"title":"Promotion of DNA Adsorption onto Microplastics by Transition Metal Ions","authors":"Lyuyuan Wu, Kshiti Patel, Mohamad Zandieh, Juewen Liu","doi":"10.3390/microplastics2010012","DOIUrl":"https://doi.org/10.3390/microplastics2010012","url":null,"abstract":"Microplastics can adsorb and spread a variety of pollutants in the ecosystem posing a threat to human health. One of the common pollution sources of environmental waters is metal ions, which not only adsorb on microplastics but can also promote the adsorption of other invasive species such as environmental DNA. Recently, we showed that environmentally abundant metal ions (Na+, Mg2+ and Ca2+) can promote the adsorption of single-stranded DNA (ssDNA) onto microplastics. Herein, we investigated the effect of transition metal ions including Zn2+ and Mn2+ and compared them with Mg2+ for promoting DNA adsorption. To better mimic environmental DNA, we also used a salmon sperm double-stranded DNA (dsDNA) (~2000 bp). For both ssDNA and dsDNA, the transition metals induced a higher adsorption capacity compared to Mg2+, and that correlated with the higher binding affinity of transition metals to DNA. Although metal-mediated interactions were vital for ssDNA adsorption, the dsDNA adsorbed on the microplastics even in the absence of metal ions, likely due to the abundance of binding sites of the 100-times longer dsDNA. Finally, desorption studies revealed that hydrophobic interactions were responsible for dsDNA adsorption in the absence of metal ions.","PeriodicalId":74190,"journal":{"name":"Microplastics and nanoplastics","volume":"38 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77390298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Characterization of Large Microplastic Debris in Beach Sediments in the Po Delta Area 波河三角洲滩涂沉积物中大型微塑料碎片的特征

Microplastics and nanoplastics Pub Date : 2023-03-03 DOI: 10.3390/microplastics2010011

L. Cozzarini, Joana Buoninsegni, C. Corbau, V. Lughi

{"title":"Characterization of Large Microplastic Debris in Beach Sediments in the Po Delta Area","authors":"L. Cozzarini, Joana Buoninsegni, C. Corbau, V. Lughi","doi":"10.3390/microplastics2010011","DOIUrl":"https://doi.org/10.3390/microplastics2010011","url":null,"abstract":"The use of single-use or disposable plastic objects has massively increased during the last few decades, and plastic has become the main type of litter found in marine environments. The Adriatic Sea is seriously prone to marine litter pollution, and it collects about one-third of all the freshwater flowing into the Mediterranean, mainly via the river Po. This study investigated the type and composition of large microplastic debris collected in different sites in the Po Delta area. Visual classification was performed by relevant criteria, while chemical composition was assessed by infrared spectroscopy. The main plastic fraction is composed of polyolefin (76%), followed by polystyrene (19%). This proportion roughly matches global plastic production, rescaled after excluding plastics with negative buoyancy: all the identified compounds have a specific gravity lower than that of the seawater. Fragments (irregularly shaped debris) represent the most abundant category fraction (85%), followed by pellets, which represent roughly 10% of the total. Overall, the results provided an insight into large microplastic pollution in beach sediments in the Po delta area.","PeriodicalId":74190,"journal":{"name":"Microplastics and nanoplastics","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79211942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An In Vitro Assay to Quantify Effects of Micro- and Nano-Plastics on Human Gene Transcription 微塑料和纳米塑料对人类基因转录影响的体外定量分析

Microplastics and nanoplastics Pub Date : 2023-02-15 DOI: 10.3390/microplastics2010009

A. Pellegrino, Denise Danne, C. Weigel, H. Seitz

{"title":"An In Vitro Assay to Quantify Effects of Micro- and Nano-Plastics on Human Gene Transcription","authors":"A. Pellegrino, Denise Danne, C. Weigel, H. Seitz","doi":"10.3390/microplastics2010009","DOIUrl":"https://doi.org/10.3390/microplastics2010009","url":null,"abstract":"In today’s age, plastic waste is a major problem for our environment. The decomposition of plastic waste causes widespread contamination in all types of ecosystems worldwide. Micro-plastics in the lower micrometer size range and especially nano-plastics can become internalized by cells and thus become a threat to human health. To investigate the effects of internalized micro- and nano-plastics on human gene transcription, we used an in vitro assay to quantify CREB (cAMP response element binding protein) mediated transcription. Here we show that CREB mediated gene expression was mainly but not exclusively induced by phosphorylation. In addition, the amount of CREB affected transcription was also studied. We were also able to show that the strong CREB mediated stimulation of transcription was diminished by micro- and nano-plastics in any chosen setting. This indicates a threat to human health via the deregulation of transcription induced by internalized micro- and nano-plastics. However, this established quantifiable in vitro transcription test system could help to screen for toxic substances and non-toxic alternatives.","PeriodicalId":74190,"journal":{"name":"Microplastics and nanoplastics","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73811913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A Public Database for Microplastics in the Environment 环境中微塑料公共数据库

Microplastics and nanoplastics Pub Date : 2023-02-15 DOI: 10.3390/microplastics2010010

Natalja Čerkasova, K. Enders, Robin Lenz, S. Oberbeckmann, Josef Brandt, Dieter Fischer, Franziska Fischer, M. Labrenz, G. Schernewski

引用次数: 2