环境科学与生态学最新文献_第6页

Deciphering the N1-Substituent Effects on Biodegradation of Sulfonamides: Novel Insights revealed from Molecular Biology and Computational Chemistry Approaches

IF 12.8 1区环境科学与生态学

Water Research Pub Date : 2024-12-25 DOI: 10.1016/j.watres.2024.123037

Jiahui Hu, Ruiyang Li, Jiayu Zhang, Lijia Cao, Huaxin Lei, Renxin Zhao, Lin Lin, Xiao-yan Li, Wen Zhang, Bing Li

{"title":"Deciphering the N1-Substituent Effects on Biodegradation of Sulfonamides: Novel Insights revealed from Molecular Biology and Computational Chemistry Approaches","authors":"Jiahui Hu, Ruiyang Li, Jiayu Zhang, Lijia Cao, Huaxin Lei, Renxin Zhao, Lin Lin, Xiao-yan Li, Wen Zhang, Bing Li","doi":"10.1016/j.watres.2024.123037","DOIUrl":"https://doi.org/10.1016/j.watres.2024.123037","url":null,"abstract":"Elucidating biodegradation mechanisms and predicting pollutant reactivities are essential for advancing the application of biodegradation engineering to address the challenge of thousands of emerging contaminants. Molecular biology and computational chemistry are powerful tools for this purpose, enabling the investigation of biochemical reactions at both the gene and atomic levels. This study employs the biodegradation of ten sulfonamide antibiotics as a case study to demonstrate the integration of genomics and quantum chemistry approaches in exploring the biodegradation behavior of emerging contaminants. The isolated functional strain, Paenarthrobacter sp., could completely degrade all ten model sulfonamides under aerobic conditions. These compounds share a 4-aminobenzenesulfonamide core but differ in N1-substituent rings. Despite structural variations, all sulfonamides followed a consistent degradation pathway, yielding aminated heterocycles as end products. This pathway involves key steps such as dehydrogenation activation, ipso-hydroxylation, and the cleavage of S-N and S-C bonds, with the latter being particularly influenced by the N1-substituents. Heterocyclic structures affect biodegradation rates by altering the electronic density at the C3 and N1 atoms of sulfonamides. Substituents with higher electron-donating potential and lower Gibbs free energy barriers for S-C and C-N bond cleavage significantly enhance biodegradation efficiency. This work not only deciphers the universal biodegradation mechanism of sulfonamides but also offers theoretical insights for predicting the biodegradation behavior and pattern of emerging contaminants. These findings contribute to the effective removal of emerging contaminants from aquatic environments, advancing the practical application of biotreatment technologies.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"132 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142884654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Integrated Approach of Carbon Footprint Calculation for Agricultural Sector through Smart-Farming

IF 11.1 1区环境科学与生态学

Journal of Cleaner Production Pub Date : 2024-12-25 DOI: 10.1016/j.jclepro.2024.144556

Dimitrios E. Tsesmelis, Ippokratis Gkotsis, Christos Saltogiannis, Spyridon Reppas, Stavros Panagakis, Efthimios Zervas

{"title":"An Integrated Approach of Carbon Footprint Calculation for Agricultural Sector through Smart-Farming","authors":"Dimitrios E. Tsesmelis, Ippokratis Gkotsis, Christos Saltogiannis, Spyridon Reppas, Stavros Panagakis, Efthimios Zervas","doi":"10.1016/j.jclepro.2024.144556","DOIUrl":"https://doi.org/10.1016/j.jclepro.2024.144556","url":null,"abstract":"Agricultural production and, by extension, the agri-food sector, significantly contribute to the greenhouse effect, as farming practices and inputs are among the main sources of greenhouse gas emissions (GHG). However, through the Smart Farming approach and the equipment and tools it entails, the reduction of the crops’ carbon footprint becomes increasingly feasible, and this is what the current study supports and aims to highlight. Therefore, the carbon footprint of three of the most important agricultural products in the Mediterranean (Olive, Orange and Grape) is examined in crops that have been supported by Smart Farming equipment and models, in order to compare the results with those of respective ones that follow conventional farming methods. The Life Cycle Analysis (LCA) tool (ISO 14040, 14044 and 14067) along with the most suitable emissions factors are employed to ensure the validity pf the process. The results reveal a carbon footprint between 0.400 and 0.520 per kg of olive fruits grown through Smart Farming methods, between 0.180 and 0.290 for oranges and between 0.190 to 0.290 for grapes. On the other hand, conventional applications have presented an increased trend. These findings highlight the efficiency of Smart Farming in minimizing resource use and emissions, offering a pathway toward more sustainable agricultural practices.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"25 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142884431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessing recycled polyvinyl chloride reinforced modified asphalt mixtures for sustainable paving applications

IF 11.1 1区环境科学与生态学

Journal of Cleaner Production Pub Date : 2024-12-25 DOI: 10.1016/j.jclepro.2024.144583

Ali F. Al-Shawabkeh, Mohammad T. Awwad, Ibrahim I. Ikhries, Ziad S. Abu-Hamatteh, Nijad A. Al-Najdawi

引用次数: 0

Effects of naturally aged microplastics on arsenic and cadmium accumulation in lettuce: Insights into rhizosphere microecology

IF 13.6 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2024-12-25 DOI: 10.1016/j.jhazmat.2024.136988

Yanwei Liu, Bingqian Li, Juanjuan Zhou, Dongqin Li, Yuanyang Liu, Yan Wang, Weigang Huang, Zhepu Ruan, Jun Yao, Rongliang Qiu, Guikui Chen

{"title":"Effects of naturally aged microplastics on arsenic and cadmium accumulation in lettuce: Insights into rhizosphere microecology","authors":"Yanwei Liu, Bingqian Li, Juanjuan Zhou, Dongqin Li, Yuanyang Liu, Yan Wang, Weigang Huang, Zhepu Ruan, Jun Yao, Rongliang Qiu, Guikui Chen","doi":"10.1016/j.jhazmat.2024.136988","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.136988","url":null,"abstract":"Naturally aged microplastics (NAMPs) are commonly found in farmland soils contaminated with heavy metals (HMs), such as arsenic (As) and cadmium (Cd); yet their combined effects on soil–plant ecosystems remain poorly understood. In this study, we investigated the toxic effects of NAMPs and As–Cd on lettuce, considering the influence of earthworm activity, and examined changes in As–Cd bioavailability in the rhizosphere. Four experimental systems were established: soil–only, soil–lettuce, soil–earthworms, and soil–lettuce–earthworms systems, with four NAMPs concentrations (0, 0.1, 0.5, 1%). Our results showed that exposure to 0.1% NAMPs reduced As accumulation in lettuce shoots (0.17–0.25 mg kg−1) and roots (1.13–1.72 mg kg−1), while increasing biomass and enhancing root growth by alleviating toxicity. In contrast, the combined stress of higher NAMPs concentration (0.5%/1%) and As–Cd caused a 28.4–58.4% reduction in root activity, which stimulated low-molecular-weight organic acid (LMWOA) secretion in the rhizosphere, increasing the bioavailability of As and Cd and enhancing their absorption by lettuce. Partial least squares path modeling (PLS-PM) revealed that co-exposure altered LMWOA content, soil enzyme activity, and microbial community stability in the rhizosphere, ultimately influencing the bioavailability and uptake of As and Cd by lettuce.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"65 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142884483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mitochondrial Mechanism of Florfenicol-induced Nonalcoholic Fatty Liver Disease in Zebrafish Using Multi-omics Technology

IF 13.6 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2024-12-25 DOI: 10.1016/j.jhazmat.2024.136958

Lin Zhang, Yang Du, Yameng Li, Tiancai Wang, Yecan Pan, Xiaofeng Xue, Xiyan Mu, Jing Qiu, Yongzhong Qian

{"title":"Mitochondrial Mechanism of Florfenicol-induced Nonalcoholic Fatty Liver Disease in Zebrafish Using Multi-omics Technology","authors":"Lin Zhang, Yang Du, Yameng Li, Tiancai Wang, Yecan Pan, Xiaofeng Xue, Xiyan Mu, Jing Qiu, Yongzhong Qian","doi":"10.1016/j.jhazmat.2024.136958","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.136958","url":null,"abstract":"Florfenicol (FF), a third-generation chloramphenicol antibiotic widely used in food-producing animals, has become a “pseudopersistent” environmental contaminant, raising concerns about its potential ecological and human health impacts. However, its bioaccumulation behavior and hepatotoxic mechanisms remain poorly understood. This study aims to address these gaps with a 28-day exposure experiment in adult zebrafish at 0.05 and 0.5 mg/L FF. Multiomic analyses (metabolomics, lipidomics, and transcriptomics), combined with histological and mitochondrial function assessments, were employed. Higher bioaccumulation was observed at 0.05 mg/L, potentially due to metabolic saturation at higher concentrations. Histological analysis revealed significant hepatic steatosis (>5% steatosis area), indicative of moderate nonalcoholic fatty liver disease (NAFLD). Multiomic data demonstrated global dysregulation in energy metabolism, including marked alterations in lipids (accumulation of toxic sphingolipids, excessive fatty acids, and acylglycerol), amino acids, tricarboxylic acid cycle intermediates, and nucleotides. Crucially, mitochondrial dysfunction was identified as a central mechanism, with impaired respiratory chain activities, adenosine triphosphate depletion, elevated reactive oxygen species, and oxidative stress promoting NAFLD progression. These findings highlight mitochondrial impairment and oxidative stress as key drivers of FF-induced hepatotoxicity, providing novel insights into its toxicological mechanisms and emphasizing the ecological risks posed by antibiotic pollution in aquatic systems.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"24 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142884507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Laboratory-simulated marine heatwave enhances physiological damage to mussels exposed to titanium dioxide nanoparticles by disrupting the gut−hepatopancreas axis

IF 13.6 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2024-12-25 DOI: 10.1016/j.jhazmat.2024.137006

Shuaishuai Wei, Menghong Hu, Inna Sokolova, Zhihan Tu, Liming Chen, Peng Xu, Yiran Mao, Shixiu Wang, Youji Wang

{"title":"Laboratory-simulated marine heatwave enhances physiological damage to mussels exposed to titanium dioxide nanoparticles by disrupting the gut−hepatopancreas axis","authors":"Shuaishuai Wei, Menghong Hu, Inna Sokolova, Zhihan Tu, Liming Chen, Peng Xu, Yiran Mao, Shixiu Wang, Youji Wang","doi":"10.1016/j.jhazmat.2024.137006","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.137006","url":null,"abstract":"The aggregation state of nano-TiO2 in the environment is altered under marine heatwaves (MHWs), thus affecting its bioavailability and toxicity to the marine organisms. Here, we investigated the toxic mechanisms and effects of nano-TiO2 on gut−hepatopancreas axis health of Mytilus coruscus exposed to 25 and 250 μg/L of nano-TiO2 under laboratory-simulated MHW. Compared with the control conditions or post-MHW cooling phase, prolonged MHW exposure significantly inhibited digestive function, decreased immune-related enzymes activities, and caused neurotoxicity in the mussels. 16S rRNA analysis demonstrated that high concentration nano-TiO2 and combined exposures decreased the abundance of Bacteroidota while increased the Proteobacteria. Additionally, the elevated pro-inflammatory bacteria released endotoxin lipopolysaccharide (LPS), which activated Toll-like receptor 4 (TLR-4) in the hepatopancreas and induced hepatopancreatic inflammation by downregulating nuclear factor-kappa B (NF-κB) signaling pathway and detoxification-related genes. Furthermore, nano-TiO2 and MHW exposure dysregulated the glutathione system, decreased the levels of antioxidation-related genes, and induced the accumulation of ROS and lipid peroxide (LPO) contents, thus causing severe oxidative damage and hepatopancreatic cell apoptosis. These findings demonstrate that nano-TiO2 and MHW induce hepatopancreatic inflammation and cell damage, which are strongly associated with the gut lesions and disrupted gut−hepatopancreas axis homeostasis.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"21 2 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142884510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rerouting Charge Transfer for Pharmaceutical Wastewater Electrochemical Treatment via Interfacial Cocatalyst Modification

IF 13.6 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2024-12-25 DOI: 10.1016/j.jhazmat.2024.137012

Shuchi Zhang, Mengwen Yu, Xixuan Zou, Shuwen Du, Xinhua Xu, Huijie Lu, Donglei Wu

{"title":"Rerouting Charge Transfer for Pharmaceutical Wastewater Electrochemical Treatment via Interfacial Cocatalyst Modification","authors":"Shuchi Zhang, Mengwen Yu, Xixuan Zou, Shuwen Du, Xinhua Xu, Huijie Lu, Donglei Wu","doi":"10.1016/j.jhazmat.2024.137012","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.137012","url":null,"abstract":"Electrochemical oxidation stands as a pivotal technology for refractory wastewater treatment. However, the high cost and low elemental abundance of commercial electrodes limit its widespread application. This work tries to address this by introducing a charge-transfer rerouting strategy via cocatalyst modification using earth-abundant elements. Here, we uncover the role of the cocatalyst in enhancing electrode performance. The in-situ reconstructed cocatalyst induces a substantial rerouting of the charge transfer pathway, facilitating the mass/charge transfer of organics while concurrently suppressing the oxygen evolution side reaction. The Ti-Fe2O3 electrode, loaded with the cocatalyst PbO2, exhibits both high current efficiency (~45.4%) and low energy requirement (~31.8 kW h kg-1 COD), surpassing other reported electrodes and displaying great versatility in various scenarios with good stability and reusability. Moreover, this charge-transfer rerouting strategy holds promise for synergy with other methodologies, such as nanostructure engineering and molecular imprinting, to further enhance the reactivity and selectivity of electrocatalysts in environment and energy-related domains.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"377 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142884512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Metabolic Mechanism, Responses, and Functions of Genes HDH1, HDH3, and GST1 of Tea (Camellia sinensis L.) to the Insecticide Thiamethoxam

IF 13.6 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2024-12-25 DOI: 10.1016/j.jhazmat.2024.136969

Ping Zhang, Tianyuan Yang, Yunlong Xie, Yulong Liu, Qing X. Li, Xiangwei Wu, Rimao Hua, Weiting Jiao

{"title":"Metabolic Mechanism, Responses, and Functions of Genes HDH1, HDH3, and GST1 of Tea (Camellia sinensis L.) to the Insecticide Thiamethoxam","authors":"Ping Zhang, Tianyuan Yang, Yunlong Xie, Yulong Liu, Qing X. Li, Xiangwei Wu, Rimao Hua, Weiting Jiao","doi":"10.1016/j.jhazmat.2024.136969","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.136969","url":null,"abstract":"Misuse of insecticides such as thiamethoxam (TMX) not only affects the quality of tea but also leaves residues in tea. Therefore, exploring the metabolic mechanisms of TMX in tea plants can evaluate effects of pesticides on the environment and human health. Here, effects of TMX on tea plants were studied. Malondialdehyde (MDA) content reached a maximum of 12.59 nmol/g fresh weight (FW) on 1st d under X (the recommended dose: 0.015 kg a.i./ha) of TMX. Under 2 X (0.03 kg a.i./ha), the catalase, glutathione S-transferase and superoxide dismutase activity were increased by 45.0%, 55.5%, and 49.7% at 7 d respectively. Metabolomic and transcriptomic analyses revealed that TMX significantly affected amino acid metabolism, flavonoid biosynthesis and glutathione metabolism, and induced the expression of 3-hydroxyisobutyric acid dehydrogenase genes (CsHDH1 and CsHDH3) and glutathione S-transferase gene (CsGST1). The three genes were transiently expressed in Nicotiana benthamiana for the first time to verify the function of TMX degradation, with the degradation rate of 59.2%-85.3% at X. This study elucidated the response of tea plants to abiotic stress on the molecular-scale perspective, and the molecular approaches could serve as a model for the study on pesticide metabolism in plants.<h3>SYNOPSIS</h3>Degradation ability of CsHDH1, CsHDH3 and CsGST1 genes to thiamethoxam was verified for the first time, providing genetic resources for phytoremediation of pollutants.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"11 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142884514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Polyethylene microplastic exposure adversely affects oocyte quality in human and mouse

IF 11.8 1区环境科学与生态学

Environment International Pub Date : 2024-12-25 DOI: 10.1016/j.envint.2024.109236

Qiaoling Wang, Fengli Chi, Yingdong Liu, Qiurong Chang, Siyu Chen, Pengcheng Kong, Wanli Yang, Wenqiang Liu, Xiaoming Teng, Yan Zhao, Yi Guo

{"title":"Polyethylene microplastic exposure adversely affects oocyte quality in human and mouse","authors":"Qiaoling Wang, Fengli Chi, Yingdong Liu, Qiurong Chang, Siyu Chen, Pengcheng Kong, Wanli Yang, Wenqiang Liu, Xiaoming Teng, Yan Zhao, Yi Guo","doi":"10.1016/j.envint.2024.109236","DOIUrl":"https://doi.org/10.1016/j.envint.2024.109236","url":null,"abstract":"Microplastics (MPs) are pervasive environmental contaminants, resulting in unavoidable human exposure. This study identified MPs in follicular fluid and investigated the specific MPs and mechanisms that adversely affect oocytes. MPs in the follicular fluid of 44 infertile women undergoing assisted reproductive technology were measured using Raman microspectroscopy. Differential metabolites in follicular fluid were analyzed via untargeted metabolomics. Female mice were exposed to polyethylene (PE) to validate human findings. MPs, particularly PE, exhibited the highest detection rate (86.4 %) in human follicular fluid and showed a negative correlation with fertilization rates (r = -0.407, P = 0.007). Elevated PE levels altered metabolites primarily involved in metabolic pathways, ferroptosis, and ovarian steroidogenesis. In mice, PE exposure significantly reduced the number of retrieved oocytes (31.5 vs. 36.3, P < 0.05) and fertilization rate (70.8 % vs. 85.2 %, P < 0.001), while increasing the proportion of poor-quality oocytes (28.2 % vs. 16.5 %, P < 0.001) and reactive oxygen species (ROS) production compared to controls. RNA sequencing indicated significant upregulation of inflammation-related genes (Il10ra, Il1a, Il33, Tnfaip8l2, and Tnfrsf1b) in the PE-exposed group. In conclusion, PE exposure impairs oocyte quality possibly by disrupting follicular fluid metabolism, elevating inflammation-related gene expression, and increasing ROS production in oocytes.","PeriodicalId":308,"journal":{"name":"Environment International","volume":"5 1","pages":""},"PeriodicalIF":11.8,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142884602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Metal-free AAO membranes function as both filters and Raman enhancers for the analysis of nanoplastics

IF 12.8 1区环境科学与生态学

Water Research Pub Date : 2024-12-25 DOI: 10.1016/j.watres.2024.123043

Juhui Seo, Gogyun Shin, Dongha Shin

{"title":"Metal-free AAO membranes function as both filters and Raman enhancers for the analysis of nanoplastics","authors":"Juhui Seo, Gogyun Shin, Dongha Shin","doi":"10.1016/j.watres.2024.123043","DOIUrl":"https://doi.org/10.1016/j.watres.2024.123043","url":null,"abstract":"Nanoplastics (NPs) are growing concerns for health and the environment, being widely distributed across marine, freshwater, air, and biological systems. Analyzing NPs in real environmental samples requires pretreatment, which has traditionally been complex and often leads to underestimation in actual samples, creating a gap between real-world conditions and research findings. In this study, we propose using anodic aluminum oxide (AAO) membrane as a direct Raman substrate for particles on a filter, achieving complete recovery during separation and concentration while simplifying the pretreatment stages. Moreover, our study introduces AAO itself, without any metal coating, as a normal Raman spectroscopy substrate with strong Raman signal enhancement for NPs and an ultra-flat surface for rapid analysis. By using AAO with nanometer-sized pores, we effectively detected standard polystyrene spherical particles on the AAO membrane down to 200 nm. Our investigation extended to irregular NPs containing PP, PE, PET, PS, PMMA, and PLA, confirming the reliability of this approach. Our results suggest that employing an AAO membrane with dual functionality as both a filter and a Raman substrate effectively serves as a cost-effective, rapid, simple, and accurate tool for NP analysis in complex environments.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"31 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142884650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0