Environmental Science: Nano最新文献

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Heterogeneous Nucleation of Calcium Carbonate on Functionalized Surfaces: Insights into Engineered Surfaces in Water Systems 碳酸钙在功能化表面上的非均相成核:对水系统工程表面的见解
IF 8.131 2区 环境科学与生态学
Environmental Science: Nano Pub Date : 2026-11-09 DOI: 10.1039/d6en00765a
Ping I Chou,Honghyun Kim,Deoukchen Ghim,Prashant Gupta,Zhenwei Gao,Minkyoung Jung,Srikanth Singamaneni,Byeongdu Lee,Young-Shin Jun
{"title":"Heterogeneous Nucleation of Calcium Carbonate on Functionalized Surfaces: Insights into Engineered Surfaces in Water Systems","authors":"Ping I Chou,Honghyun Kim,Deoukchen Ghim,Prashant Gupta,Zhenwei Gao,Minkyoung Jung,Srikanth Singamaneni,Byeongdu Lee,Young-Shin Jun","doi":"10.1039/d6en00765a","DOIUrl":"https://doi.org/10.1039/d6en00765a","url":null,"abstract":"Calcium carbonate (CaCO3) is a common mineral scale across diverse industrial and water infrastructure. Yet, the kinetics and thermodynamics of heterogeneously formed CaCO3 nanoparticles controlled by chemical functional groups remain poorly understood. By utilizing in situ grazing incidence small angle X-ray scattering and atomic force microscopy, this study investigates heterogeneous nucleation rates and nucleus sizes of CaCO3 nanoparticles on COOH-, OH-, NH2-, and F-functionalized surfaces with diverse chemical properties. The nucleation rates were in the order of COOH > OH > NH2 > F. Notably, COOH-surfaces exhibited significantly faster CaCO3 nucleation. The favorable CaCO3 nucleation on COOH-surfaces can be attributed to the hydrophilic surface and high chemical affinity to Ca2+. On the other hand, the positive surface potential and high hydrophobicity of NH2- and F-surfaces reduced their nucleation, respectively. Grazing incidence wide angle X-ray scattering determined the mineral phases of heterogeneously nucleated CaCO3 as vaterite and calcite. For both mineral phases, the F-surfaces had the highest free energy barrier of nucleation, followed by NH2-, OH-, and COOH-surfaces. These findings advance our understanding of the impact of surface functional groups on heterogeneous CaCO3 nucleation and help us better predict early-stage CaCO3 scaling in water treatment and energy-related subsurface operations.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"10 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149367817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Neurotoxicity of micro- and nanoplastics: evidence, mechanisms, and environmental relevance 微塑料和纳米塑料的神经毒性:证据、机制和环境相关性
IF 8.131 2区 环境科学与生态学
Environmental Science: Nano Pub Date : 2026-11-09 DOI: 10.1039/d6en00421k
Jiahui Xia,Huixia Niu,Jiajing Zhou,Lizhi Wu,Longxiao Liu,Xin Gong,Xueqing Li,Mingluan Xing,Minjie Zhao,Pengcheng Tu,Zhijian Chen,Xiaoming Lou
{"title":"Neurotoxicity of micro- and nanoplastics: evidence, mechanisms, and environmental relevance","authors":"Jiahui Xia,Huixia Niu,Jiajing Zhou,Lizhi Wu,Longxiao Liu,Xin Gong,Xueqing Li,Mingluan Xing,Minjie Zhao,Pengcheng Tu,Zhijian Chen,Xiaoming Lou","doi":"10.1039/d6en00421k","DOIUrl":"https://doi.org/10.1039/d6en00421k","url":null,"abstract":"Micro- and nanoplastics (MNPs) have emerged as pervasive environmental contaminants that are now widely distributed across diverse ecosystems worldwide. Increasing evidence indicates that MNPs can enter biological systems through multiple exposure routes and accumulate in various organs, including the brain. To provide a comprehensive synthesis of current knowledge, we systematically searched the Web of Science Core Collection and PubMed for relevant literature published from database inception to 2026. The resulting evidence was reviewed to characterize the physicochemical properties, environmental distribution, and bioaccumulation of MNPs, with particular emphasis on their neurotoxic effects and underlying molecular and cellular mechanisms. Current findings suggest that MNPs can access the central nervous system by disrupting the blood–brain barrier (BBB) or via the olfactory nerve pathway. Once in neural tissues, MNPs may induce neurotoxicity through multiple mechanisms, including oxidative stress, neuroinflammation, disruption of protein signaling pathways, and modulation of the gut–brain axis. These processes may ultimately lead to behavioral abnormalities, neuronal damage, and an increased risk of neurodegenerative disorders. Despite the growing body of research, several critical challenges remain, including limitations in detection technologies, the diversity of MNP types, and the complexity of mixed environmental exposures. Future studies integrating multidisciplinary approaches will be essential to elucidate the neurotoxic mechanisms of MNPs more comprehensively and to inform evidence-based environmental and public health policies.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"15 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149367818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Gut microbiome reorganization: Post-exposure responses after multigenerational graphene oxide treatment 肠道微生物组重组:多代氧化石墨烯处理后的暴露后反应
IF 8.131 2区 环境科学与生态学
Environmental Science: Nano Pub Date : 2026-11-07 DOI: 10.1039/d6en00678g
Maria Augustyniak,Łukasz Napora-Rutkowski,Monika Malicka,Barbara Flasz,Christopher Rensing,Ewa Świerczek,Agnieszka Babczyńska,Monika Tarnawska,Andrzej Kędziorski
{"title":"Gut microbiome reorganization: Post-exposure responses after multigenerational graphene oxide treatment","authors":"Maria Augustyniak,Łukasz Napora-Rutkowski,Monika Malicka,Barbara Flasz,Christopher Rensing,Ewa Świerczek,Agnieszka Babczyńska,Monika Tarnawska,Andrzej Kędziorski","doi":"10.1039/d6en00678g","DOIUrl":"https://doi.org/10.1039/d6en00678g","url":null,"abstract":"Graphene oxide (GO) is increasingly recognized as an emerging environmental contaminant. However, studies examining chronic, multigenerational exposure and post-exposure responses following GO withdrawal remain scarce. We investigated the effects of low dietary GO concentrations (0.02 or 0.2 µg·g⁻¹) on the gut microbiome of the house cricket (Acheta domesticus) across five consecutive generations and a subsequent GO-free generation, using wild-type and longevity-selected strains. GO exposure did not cause microbiome collapse but induced concentration-, strain-, and generation-dependent reorganization of community composition. The strongest shifts occurred at the higher GO concentration and involved increased representation of Lactobacillales and selected Proteobacteria, whereas lower GO exposure was associated mainly with Tannerellaceae-related taxa. The longevity-selected strain exhibited a more constrained microbiome response and less pronounced physiological changes, suggesting that life-history traits influence host-microbiome responses to chronic environmental stress. The most distinctive responses occurred during the initial and post-exposure generations rather than during continuous exposure. In the post-exposure generation, the microbiome did not return to the control configuration. Instead, it exhibited a distinct community structure, with shifts in Tannerellaceae, Streptococcaceae, and Enterobacterales, while body mass in the previously exposed high-dose groups was 14.5% and 32.5% lower than in controls in the wild-type and longevity-selected strains, respectively. These findings indicate that chronic low-dose GO exposure results in microbiome reorganization rather than dysbiosis and highlight the importance of post-exposure responses, exposure history, and host life-history traits in shaping responses to environmental contaminants.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"48 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149360177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Traceable selenium-doped microplastics and nanoplastics with environmentally realistic morphologies for multi-modal detection in complex biological matrices 具有环境逼真形态的可追溯硒掺杂微塑料和纳米塑料,用于复杂生物基质中的多模态检测
IF 8.131 2区 环境科学与生态学
Environmental Science: Nano Pub Date : 2026-11-06 DOI: 10.1039/d6en00611f
F. Li,F. Blancho,H. R. Alanagh,J. R. Macairan,G. C. Kalogerakis,M. Hadioui,A. Saherwala,E. A. Laurent,K. J. Wilkinson,M. Maric,S. Ghoshal,R. Naccache,N. Tufenkji
{"title":"Traceable selenium-doped microplastics and nanoplastics with environmentally realistic morphologies for multi-modal detection in complex biological matrices","authors":"F. Li,F. Blancho,H. R. Alanagh,J. R. Macairan,G. C. Kalogerakis,M. Hadioui,A. Saherwala,E. A. Laurent,K. J. Wilkinson,M. Maric,S. Ghoshal,R. Naccache,N. Tufenkji","doi":"10.1039/d6en00611f","DOIUrl":"https://doi.org/10.1039/d6en00611f","url":null,"abstract":"The detection of microplastics and nanoplastics (MNPs) pollution in environmental studies remains analytically challenging, especially at the nanoscale, due to their small size and low concentrations. Traceable MNPs containing elemental dopants have emerged as an interesting strategy for studying particle fate using element-specific techniques such as inductively coupled plasma mass spectrometry (ICP-MS) and single particle ICP-MS (spICP-MS). However, most existing traceable MNPs rely on model spherical particles that do not reflect the morphological diversity of environmental MNPs. In this work, we produce selenium-doped polystyrene MNPs with environmentally relevant, heterogeneous morphologies by combining free-radical polymerization with cryomilling. Selenium was selected as a tracer due to its low environmental background, its content tunability, its detectability by ICP-MS and the ability to covalently incorporate it into polymer matrices to minimize leaching. To demonstrate the applicability of the traceable particles for biological fate studies, we exposed Daphnia magna to Se-doped MNP suspensions to confirm particle internalization. Time-of-flight secondary ion mass spectrometry (ToF-SIMS) provided sub-micrometer localization of Se and polymer fragments within D. magna tissues, while optical photothermal infrared (O-PTIR) spectroscopy provided further verification of the identity and localization of the MNPs. This work introduces a proof-of-concept of an environmentally relevant platform for traceable MNPs and expands the toolbox for studying the fate, transport, and biological interactions of MNPs in controlled environmental systems.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"20 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149360179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
UV-Weathering and Soil Solution Modulate the Surface Properties and Transport of Nanoplastics 紫外线风化和土壤溶液对纳米塑料表面性质和迁移的影响
IF 8.131 2区 环境科学与生态学
Environmental Science: Nano Pub Date : 2026-11-03 DOI: 10.1039/d6en00896h
Xueyu Zhou,Yingxue Yu,Indranil Chowdhury,Anton Astner,Douglas Gordon Hayes,Markus Flury
{"title":"UV-Weathering and Soil Solution Modulate the Surface Properties and Transport of Nanoplastics","authors":"Xueyu Zhou,Yingxue Yu,Indranil Chowdhury,Anton Astner,Douglas Gordon Hayes,Markus Flury","doi":"10.1039/d6en00896h","DOIUrl":"https://doi.org/10.1039/d6en00896h","url":null,"abstract":"Plastics exposed to environmental conditions have been shown to develop eco-coronas. Here, we investigated how the eco-corona impacts the surface properties and transport of nanoplastics in unsaturated sand. Four different plastics, polyethylene (PE), polypropylene (PP), polystyrene (PS), and poly(butylene adipate-co-terephthalate)-based (PBAT) were used in pristine and UV-weathered forms. The nanoplastics were then exposed to a water-extractable soil solution to form an eco-corona. For most nanoplastics the zeta potentials became less negative after UV-weathering, indicating decreased surface charge; except for PBAT, whose zeta potentials became considerably more negative after weathering. The eco-corona caused the zeta potentials of the different nanoplastics to become more similar. The eco-corona decreased contact angles in some cases (PP and PS) but increased the contact angle in others (PE and PBAT). For the UV-weathered nanoplastics, the eco-corona made the contact angles more similar among the different plastic types: contact angles varied from 74.5$^circ$ to 94.8$^circ$ for eco-corona covered nanoplastics vs 77.9$^circ$ to 106.7$^circ$ in absence of the ecocorona. Weathering and eco-corona had no obvious effect on the transport of nanoplastics in sand columns under low ionic strength. This study demonstrates that both UV-weathering and eco-corona formation modify the physicochemical properties of nanoplastics, such as surface charge and hydrophobicity, with a tendency to make different plastics more similar. Exposure of nanoplastics to soil solutions tends to mask the surface properties of different nanoplastic polymers, making them alike in terms of fate and transport.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"23 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149305087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Covalent DNA–protein conjugates with defined stoichiometry toward environmental sensing 共价dna -蛋白结合物与定义的化学计量学对环境的感知
IF 8.131 2区 环境科学与生态学
Environmental Science: Nano Pub Date : 2026-11-02 DOI: 10.1039/d6en00374e
Erika Komiya,Daimei Miura,Kazunori Ikebukuro,Ryutaro Asano
{"title":"Covalent DNA–protein conjugates with defined stoichiometry toward environmental sensing","authors":"Erika Komiya,Daimei Miura,Kazunori Ikebukuro,Ryutaro Asano","doi":"10.1039/d6en00374e","DOIUrl":"https://doi.org/10.1039/d6en00374e","url":null,"abstract":"Rapid and accurate detection of environmental pollutants is essential for public health and environmental protection. Although conventional analytical techniques offer high sensitivity, they often require long analysis times, expensive instrumentation, and skilled personnel. Biosensors employing biomolecules offer a rapid, portable, and simple detection method. Antibodies and enzymes are widely used as biosensing elements because antibodies exhibit high affinity and specificity, whereas enzymes provide substrate-specific recognition and catalytic signal amplification. However, antibodies generally require external labeling for signal amplification, and such modification is labor-intensive, while enzymes recognize only limited targets. In contrast, DNA offers complementary advantages in chemical modifiability, compatibility with signal amplification, and versatile molecular recognition, including ions, chemical compounds, and nucleic acids (DNA and RNA). Despite these advantages, the chemical diversity of DNA itself is limited, making it challenging to obtain high-affinity aptamers or highly active DNA-based catalysts. Accordingly, integrating functional proteins with DNA can generate biosensors with capabilities unattainable by either component alone. However, conventional DNA–protein conjugation methods, such as covalent chemical modification of protein surface residues, often result in heterogeneous conjugation and activity loss. Moreover, stoichiometric affinity-based assembly relying on non-covalent interactions may dissociate in environmental matrices. Therefore, this review overviews covalent DNA–protein conjugation strategies with defined stoichiometry, focusing on approaches based on site-specific chemical modification, enzymatic reactions, self-labeling proteins, and DNA-binding proteins. It discusses their advantages, limitations, sustainability considerations, and biosensing applications. Overall, this review provides a practical framework for selecting appropriate conjugation methods and highlights the potential of DNA–protein conjugates in environmental biosensing.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"28 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149304565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
MoS42- anchored Ti3C2Tx MXene: A high-performance adsorbent with antibacterial activity for selective uranium(Ⅵ) removal and its underlying mechanism MoS42-锚定Ti3C2Tx MXene:选择性除铀(Ⅵ)的高效吸附剂及其机理
IF 8.131 2区 环境科学与生态学
Environmental Science: Nano Pub Date : 2026-10-30 DOI: 10.1039/d6en00697c
Yifan Deng,Junsheng Ma,Changlun Chen,Xuemei Ren
{"title":"MoS42- anchored Ti3C2Tx MXene: A high-performance adsorbent with antibacterial activity for selective uranium(Ⅵ) removal and its underlying mechanism","authors":"Yifan Deng,Junsheng Ma,Changlun Chen,Xuemei Ren","doi":"10.1039/d6en00697c","DOIUrl":"https://doi.org/10.1039/d6en00697c","url":null,"abstract":"The widespread application of uranium as fuel in the nuclear industry inevitably generates radioactive wastewater, causing a series of negative environmental impacts. To mitigate this issue, there is a pressing need to construct new MXene-based composites with excellent adsorption performance and antibacterial activity for radioactive wastewater remediation. Herein, a simple ion-exchange method was used to modify Ti3C2Tx with tetrathiomolybdate ions (MoS42-), and the uranium (U(Ⅵ)) adsorption behavior and antibacterial activity of MoS4/Ti3C2Tx composite were comprehensively studied. At pH 6.0 and 303.15 K, the Langmuir-fitted theoretical maximum adsorption capacity (Qm) of MoS4/Ti3C2Tx for U(Ⅵ) was 269.93 mg·g-1, markedly higher than that of pristine Ti3C2Tx (116.17 mg·g-1). Critically, the incorporation of MoS42- endowed the composite with high selectivity towards U(Ⅵ). Moreover, MoS4/Ti3C2Tx also demonstrated excellent reusability, retaining over 87% of its initial adsorption capacity after five adsorption-desorption cycles. Antibacterial experiments demonstrated that MoS4/Ti3C2Tx exhibited remarkable inhibitory effects against E. coli and S. aureus. These findings highlight that the significant potential of MoS4/Ti3C2Tx as a highly efficient and selective adsorbent with antibacterial activity for the remediation of U(Ⅵ)-containing radioactive wastewater.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"18 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149303288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Reactive oxygen species determined the toxicity of titanium dioxide nanoparticles to : Insights from regulated generation 活性氧决定了二氧化钛纳米颗粒的毒性:从调控生成的见解
IF 8.131 2区 环境科学与生态学
Environmental Science: Nano Pub Date : 2026-10-29 DOI: 10.1039/d6en00633g
Yao Li,Xiangrui Wang,Xiaolong Yang,Ying Wang,Wenhong Fan
{"title":"Reactive oxygen species determined the toxicity of titanium dioxide nanoparticles to : Insights from regulated generation","authors":"Yao Li,Xiangrui Wang,Xiaolong Yang,Ying Wang,Wenhong Fan","doi":"10.1039/d6en00633g","DOIUrl":"https://doi.org/10.1039/d6en00633g","url":null,"abstract":"Titanium dioxide nanoparticles (TiO2 NPs) are extensively used in water treatment processes owing to their photocatalytic properties. However, their environmental stability and resistance to degradation result in significant release and accumulation in aquatic environments, where they pose potential toxicity and ecological risks to organisms and ecosystems. Numerous studies have indicated that oxidative damage mediated by reactive oxygen species (ROS) induced by TiO2 NPs represented a key indicator of their biological toxicity. However, the specific mechanisms through which different types of ROS, such as hydroxyl radicals (•OH) and superoxide anion radicals (•O2‾), contribute to toxicity within organisms still remain poorly understood. Based on this, this study designed and synthesized TiO2 NPs and Au@TiO2 core-shell nanocomposites, enabling precise control over ROS generation capacity and facilitating a systematic investigation of the toxicity and underlying mechanisms of both TiO2 NPs. The results demonstrated that both types of TiO2 NPs accumulated significantly in Daphnia magna, elevating intracellular ROS levels, perturbing antioxidant enzyme activities, inducing biological membrane damage, and ultimately leading to oxidative damage. The toxicity was closely correlated with the generation capacity of ROS. Specifically, •O2‾ was primarily involved in eliciting antioxidant responses, whereas •OH contributed substantially to biological membrane damage. This study provides strong correlative evidence for the distinct toxic contributions of •O2‾ and •OH induced by TiO2 NPs, offering a scientific basis for assessing their ecological risks.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"495 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149281656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Lignin-derived carbon-based metal catalysts for water treatment: from nanoparticles to single atom 木质素衍生碳基金属水处理催化剂:从纳米颗粒到单原子
IF 8.131 2区 环境科学与生态学
Environmental Science: Nano Pub Date : 2026-10-27 DOI: 10.1039/d6en00451b
Ting Meng,Junkai Li,Yunxiang Wu,Na Wang,Wenjie Sui,Chuanling Si,Guanhua Wang
{"title":"Lignin-derived carbon-based metal catalysts for water treatment: from nanoparticles to single atom","authors":"Ting Meng,Junkai Li,Yunxiang Wu,Na Wang,Wenjie Sui,Chuanling Si,Guanhua Wang","doi":"10.1039/d6en00451b","DOIUrl":"https://doi.org/10.1039/d6en00451b","url":null,"abstract":"Lignin-derived carbon-based metal catalysts, spanning from nanoparticles to single atoms, have emerged as a highly promising class of functional materials for water treatment, owing to their renewable origin, tunable structures, and exceptional catalytic performance. Despite the significant progress achieved in this field, a systematic summary that integrates carrier design, metal size regulation, and structure–activity relationships remains lacking. This review therefore comprehensively elaborates the precision fabrication strategies for lignin-derived carbon-based metal catalysts, including lignin pre-modification, pre-complexation, and composite templating approaches, which enable the controlled construction of metal active centers ranging from nanoparticles to atomically dispersed single atoms. The critical roles of the micro-nano structure and surface chemistry of the lignin-derived carbon matrix in governing metal anchoring, migration, and nucleation are systematically elucidated, alongside the synergistic catalytic mechanisms of multi-scale active centers in advanced oxidation/reduction and photo/electrocatalytic processes for degrading organic pollutants and removing heavy metals. Finally, we highlight the remaining challenges and future perspectives in this rapidly evolving field, including clarifying the structure–activity relationship of lignin-derived carbon supports, designing cooperative multi-metal sites, revealing dynamic reaction mechanisms via in situ characterization, and addressing engineering application barriers. We anticipate this review will provide theoretical guidance for developing next-generation efficient, stable, and low-cost lignin-based catalysts for water treatment.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"494 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149250899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Analytical assessment of nanoplastic bioaccumulation and species-dependent effects in plants: the role of particle size and concentration 植物体内纳米塑料生物积累和物种依赖效应的分析评估:粒径和浓度的作用
IF 8.131 2区 环境科学与生态学
Environmental Science: Nano Pub Date : 2026-10-22 DOI: 10.1039/d6en00257a
Harshit Sahai,M. J. Martínez Bueno,Cristina Armas,Amadeo R. Fernández-Alba,María Dolores Hernando
{"title":"Analytical assessment of nanoplastic bioaccumulation and species-dependent effects in plants: the role of particle size and concentration","authors":"Harshit Sahai,M. J. Martínez Bueno,Cristina Armas,Amadeo R. Fernández-Alba,María Dolores Hernando","doi":"10.1039/d6en00257a","DOIUrl":"https://doi.org/10.1039/d6en00257a","url":null,"abstract":"Nanoplastic contamination of agricultural systems is an emerging threat to crop physiology and food safety, yet species-specific uptake patterns and physiological consequences remain under-researched. Here, we exposed Lactuca sativa and Capsicum annuum to polystyrene nanoplastics (100, 500 and 1000 nm; 100 and 300 μg L−1) under hydroponic conditions and assessed bioaccumulation using confocal laser-scanning microscopy alongside leaf-level gas exchange measurements. Results revealed size-dependent and species-specific bioaccumulation: lettuce accumulated nanoplastics of all tested diameters, whereas pepper translocated particles ≤500 nm, with 1000 nm particles excluded at the root level. Physiological responses diverged between species. In lettuce, 100 nm nanoplastics increased cumulative water consumption by up to 30% (p < 0.0001) and reduced net photosynthetic rate by up to 38% (p < 0.05), while instantaneous water-use efficiency (iWUE) showed a non-significant downward trend of 21–23%. In pepper, exposure produced a non-significant increase in water uptake (up to 14%) and caused pronounced iWUE reductions of up to 74% (p < 0.0001), driven by simultaneous disruption of photosynthesis and stomatal regulation. Factorial analysis confirmed significant species × particle size (p = 0.0013) and species × concentration (p = 0.0009) interactions, demonstrating that nanoplastic effects on plant carbon-water balance differ substantially between these two crop species and cautioning against generalization across crops. We propose a three-tier mechanistic framework including root barrier selectivity, transpiration-driven vascular transport, and leaf tissue architecture to explain the observed species-divergent responses. These findings demonstrate that nanoplastics penetrate edible crop tissues and impair fundamental physiological processes, suggesting a potential pathway for human dietary exposure that warrants investigation.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"17 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149230069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
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