Environmental Science: Nano最新文献

{"title":"Stage-specific developmental toxicity of C and C fullerene derivatives in : impact on oxidative balance, cell cycle, and metamorphosis success","authors":"Karol Małota,Anna Urbisz,Maciej Serda,Kamil Kosiorowski,Magdalena Rost-Roszkowska","doi":"10.1039/d6en00776g","DOIUrl":"https://doi.org/10.1039/d6en00776g","url":null,"abstract":"With the increasing production and use of carbon-based nanomaterials, understanding their potential biological effects on non-target organisms has become increasingly important. In this study, we investigated the sublethal effects of two water-soluble fullerene derivatives, C60-PEI and C70-PEI on the post-embryonic development of Drosophila melanogaster larvae. Thus, three successive larval stages (L1, L2, L3) were cultured in medium containing 1 mg mL−1 of fullerene C60 or C70. To link subcellular endpoints to whole-larval developmental effects, we compared midgut ultrastructure, oxidative stress, cell cycle phase distribution, and DNA damage, alongside metamorphosis success. Both fullerene derivatives reduced metamorphosis success relative to the control (90.1%, SE 4.9), by 23.3 (SE 6.9) and 37.9 (SE 6.9) percentage points for C60-PEI and C70-PEI, respectively (both Bonferroni-adjusted p ≤ 0.006); the two derivatives did not differ significantly from each other (p = 0.13). Flow cytometry suggested oxidative imbalance as a contributing mechanism, while TEM confirmed cellular uptake. Although no widespread cell death was observed, the C70-PEI group showed isolated autophagosomes at the L2 and L3 stages, suggesting a protective autophagic response. Importantly, these effects occurred without photoactivation, representing a conservative estimate of biological activity, as light exposure typically amplifies fullerene-induced ROS generation. Because impaired metamorphosis emerged at an exposure that left midgut ultrastructure largely intact, morphological endpoints alone are an insufficient basis for judging the safety of functionalized fullerenes, and developmental endpoints in insects should be included in their risk assessment.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"24 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149225822","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}

{"title":"Polystyrene nanoplastic exposure induces concentration-dependent motility impairment and seminal plasma metabolic remodeling in Japanese sea bass sperm","authors":"Rim El Amouri,Syed Sikandar Habib,Fariha Latif,Madeeha Arshad,Saira Naz,Mohamed Mohany,Jiezhang Mo,Wenhua Liu","doi":"10.1039/d6en00751a","DOIUrl":"https://doi.org/10.1039/d6en00751a","url":null,"abstract":"Polystyrene nanoplastics (PS-NPs) are emerging contaminants in marine environments, yet their direct effects on fish sperm function remain poorly understood. This research investigated the in vitro impact of environmentally relevant PS-NPs concentrations on sperm functionality in Japanese sea bass Lateolabrax japonicus. Sperm samples underwent four treatments: control (0 μg L−1), T1 (0.01 μg L−1), T2 (0.1 μg L−1), and T3 (1 μg L−1), using fluorescent 50 nm PS-NPs. The PS-NPs associated cells increased in a concentration-dependent manner, corresponding with a gradual decrease in sperm viability. Computer-assisted sperm analysis (CASA) demonstrated that PS-NPs exposure markedly diminished motility; specifically, T3 dosage resulted in the most pronounced declines in velocity and beat cross frequency, while enhancing straightness and linearity. Cluster analysis revealed differences in the distribution and separation of sperm motility subpopulations among PS-NPs exposure groups. Seminal plasma metabolomic profiling identified 39 metabolites and revealed PS-NP-associated alterations in metabolite profiles. Low-concentration exposure modified osmolytes such as glycerol and betaine, whereas T3 treatment induced extensive metabolic disturbance, marked by notable elevations in tyrosine, carnitine, ethanol, glutamate, and acetate. PLS-DA demonstrated distinct separation between groups, with glycine, betaine, glycerol, aspartate, and creatine acting as principal discriminants. These results indicate that PS-NPs directly affect fish sperm through concentration-dependent cell association, reduced motility, and metabolic disruption with the 1 μg L−1 concentration suggesting that the highest concentration examined may pose elevated risk to sperm function in NPs-contaminated marine environments.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"74 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149225892","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}

{"title":"Ferrihydrite Re-energizes Anoxygenic Photoheterotrophic Carbon fixation and High-Value Bioproduction under High-Light Stress by Reconfiguring Redox Homeostasis toward Wastewater Valorization","authors":"Rui Chen,Jian Sun,Yong Yuan,Yaping Zhang,Zhenbo Xu","doi":"10.1039/d6en00833j","DOIUrl":"https://doi.org/10.1039/d6en00833j","url":null,"abstract":"Anoxygenic phototrophic bacteria exploit solar energy to convert wastes into bioproducts but are often inhibited by high solar irradiation via photoelectron accumulation and redox imbalance that limits their outdoor application. Overcoming this inherent ceiling would allow higher light intensities to enhance resource recovery. Here, we demonstrate for the first time that ferrihydrite (Fh) counteracts high-light-induced suppression and enhances photoheterotrophic carbon fixation and bioproduct synthesis in Rhodopseudomonas palustris. Under intense illumination (80000 lx), Rhodopseudomonas palustris exhibited a 51% decrease in net CO₂ evolution, accompanied by declines in total protein (37%), carotenoid content (62%), ATP level (68%), NADPH/NADP⁺ ratio (71%), NADH/NAD⁺ ratio (42%), and Rubisco activity (20%). Fh supplementation drove a nearly 50% increase in net CO₂ evolution along with elevations in total protein (80%) and carotenoid content (219%). ATP levels surpassed the low-light control by 5%, while the NADPH/NADP⁺ ratio recovered to 88% of the low-light level, the NADH/NAD⁺ ratio increased by 29%, and Rubisco activity was enhanced by 15%. The direct ¹³C-bicarbonate assimilation assays confirmed that Fh supplementation under high light boosted inorganic carbon fixation to a level surpassing that observed at the low-light control. Mechanistically, Fh acts as a dynamic extracellular electron mediator that undergoes Fe³⁺/Fe²⁺ redox cycling to dissipate excess photoelectrons and restore redox homeostasis. Transcriptomics confirmed Fh induced metabolic reprogramming toward enhanced bacteriochlorophyll synthesis and electron carrier production. This work offers a novel strategy to enhance anoxygenic photoheterotrophic resource recovery from wastewater under high light stress.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"56 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149225818","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}

{"title":"Mycogenic fabrication of ZnCu, MnCu, and SeMn nanocomposites for algicidal applications","authors":"Marwa Moustafa Eltarahony,Eslam Salama,Amira Sabry,Chihiro Yoshimura,Mona M. Ismail","doi":"10.1039/d6en00699j","DOIUrl":"https://doi.org/10.1039/d6en00699j","url":null,"abstract":"Eutrophication and climate change increasingly contribute to the occurrence of harmful algal blooms (HABs), threatening aquatic ecosystems and water quality. Although metal-based nanomaterials have shown antimicrobial activity, their algicidal potential against HAB-forming microalgae remains poorly explored. Here, we report a biogenic approach for synthesizing hybrid ZnCu, MnCu, and SeMn nanocomposites (NCs) using the cell-free supernatant of Candida sp. and investigate their algicidal activity against the marine microalga Chlorella marina. Physicochemical characterization (XRD, FTIR, TEM, EDX, ζ-potential, and TGA) confirmed the formation of crystalline, thermally stable nanocomposites and good colloidal stability. All NCs inhibited algal growth in a concentration-dependent manner, with 100 mg/L significantly reducing biomass and the contents of carbohydrates, proteins, and chlorophyll. In contrast, lipid and carotenoid levels increased at lower concentrations (12.5 mg/L), suggesting a protective response to nanocomposite-induced stress. NC treatment also markedly enhanced reactive oxygen species (ROS) production and antioxidant-related responses, as indicated by increases in total phenolic content, DPPH radical scavenging activity, and total antioxidant capacity. Scanning electron microscopy revealed severe cellular deformation, membrane disruption, intracellular leakage, and biofilm disintegration. Overall, these findings demonstrate that the cooperative synergistic effects of the hybrid nanocomposites induce oxidative stress and structural damage, leading to effective algal inactivation. The synthesized biogenic nanocomposites show promise algicidal materials for HAB mitigation and could potentially be incorporated into antifouling membranes for water treatment, supporting more environmental management.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"27 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149173141","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}

{"title":"Adverse Outcome Pathway Mapping of Micro/Nanoplastics, Metal Ions and Metal-based Nanomaterials in Microalgae","authors":"Haiyang Chen,Samina Irshad,Changjian Xie,Fengxia Xu,Shujing Zhang,Peng Zhang,Iseult Lynch,Zhiling Guo","doi":"10.1039/d6en00001k","DOIUrl":"https://doi.org/10.1039/d6en00001k","url":null,"abstract":"Plastic debris and metal contamination are intensifying environmental pressures on aquatic ecosystems. Microplastics and nanoplastics (M/NPs) can interact with metal ions (MIs) and metal-based nanomaterials (NMs), creating co-exposure scenarios whose effects cannot be inferred from individual stressors alone. As primary producers and sensitive bioindicators, microalgae are particularly vulnerable to these mixtures. Using a microalgae-centred conceptual Adverse Outcome Pathway (AOP) network, this Review organizes evidence from upstream exposure modifiers through biological key events (KEs) to adverse outcomes. Beyond previous reviews that mainly considered M/NP–metal interactions, algal toxicity or data-driven prediction separately, we integrate physical particle effects, endogenous plastic leachates and adsorbed exogenous metals within one mechanistic framework and link them to KE-related endpoints and machine-learning-ready descriptors. Single and combined exposures are compared to identify shared and stressor-specific mechanisms, with oxidative stress and photosynthetic impairment emerging as central KEs. Particle-induced shading and adhesion, ageing, aggregation, metal speciation and dissolution, extracellular polymeric substance (EPS) production and eco-corona formation are evaluated as processes that alter the cell-accessible dose. Enhanced toxicity is favoured when plastic particles increase local metal delivery or when co-stressors converge on oxidative and photosynthetic pathways, whereas strong sorption, heteroaggregation, sedimentation and EPS-mediated extracellular sequestration can reduce cellular metal exposure and attenuate toxicity, including antagonism where this is demonstrated against an explicit additivity model. We further assess machine-learning and deep-learning applications and map model inputs and outputs to upstream descriptors, intermediate KEs and downstream outcomes. Priorities include environmentally realistic mixture designs, quantitative exposure characterization, multi-species and trophic-level validation, and standardized datasets for AOP-aligned, ML-supported assessment of M/NP and metal co-pollution.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"27 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149173142","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}

{"title":"Effects of Nanoagrochemicals on Solanum lycopersicum (Tomato) according to their functions and mechanisms: A Review","authors":"Ezequiel García-Locascio,Carlos A. Huerta-Aguilar,Jaime Dueñas-Moreno,Abrahan Mora,Arturo A. Keller,Illya A. Medina-Velo,Pabel Cervantes-Avilés","doi":"10.1039/d5en01072a","DOIUrl":"https://doi.org/10.1039/d5en01072a","url":null,"abstract":"Nano-enabled agrochemicals are increasingly explored to improve crop nutrition, stress resilience, pest and disease management, and delivery of active compounds. This review critically analyzes 113 experimental studies published from 2017 to August 2026 on nanomaterials (NMs) applied to tomato (Solanum lycopersicum), emphasizing relationships among physicochemical properties, dose, delivery route, mechanisms of action, efficacy, and phytotoxicity. The evidence is organized into four functional categories: nanofertilizers and nanobiostimulants, nanopesticides and stress-mitigation agents, nanocarriers and controlled-release systems, and phytotoxicity/ecotoxicology. Beneficial responses involve nutrient delivery and ion release, improved nutrient bioavailability, photosynthetic and metabolic stimulation, direct antimicrobial activity, defense activation, and mitigation of abiotic and chemical stress. Nanocarriers can also enhance the delivery and release of nutrients, phytohormones, nucleic acids, and pesticidal compounds. However, responses strongly depend on concentration, particle size and morphology, surface chemistry, coating, dissolution behavior, exposure conditions, and environmental context. Evidence remains uneven across laboratory, greenhouse, and field studies, and environmental transformations are still poorly characterized. Safer application will require function-specific dose optimization, rigorous characterization, mechanistic validation, and greater field-scale assessment. Ultimately, the information presented herein will provide researchers with directions to address research gaps and enable the integration of nanotechnology as a tool for sustainable tomato agriculture.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"232 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172434","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}

{"title":"Photocatalytic Remediation of Polyethylene Terephthalate (PET) Micro- and Nanoplastics using Ellipsoidal α-Fe₂O₃","authors":"RESHMA V S,Swathi Sudhakar,Mikael Ekvall,Martin Lundqvist,Tommy Cedervall,Ethayaraja Mani","doi":"10.1039/d6en00535g","DOIUrl":"https://doi.org/10.1039/d6en00535g","url":null,"abstract":"Microplastics (MPs, <5 mm) and nanoplastics (NPs, <1 μm) generated from plastic waste are emerging as a global environmental and health-related challenge affecting life in water and soil. Among the commodity plastics, polyethylene terephthalate (PET) - extensively used in single-use bottles and textiles - exhibits hydrolytic stability and mechanical resilience, making it more resistant to natural degradation but extremely problematic for long-term persistence as MPs and NPs. In this study, photocatalytic degradation of PET MPs and NPs is investigated using hematite nano-ellipsoids (~ 250 nm major axis and ~ 50 nm minor axis) as the photocatalyst under visible light illumination. For this study, commercial PET granules are converted into NPs (~100 nm) via flash nanoprecipitation (FNP). The extent and efficiency of PET degradation is systematically evaluated using PET NPs of 100 nm under visible light irradiation at neutral pH, which exhibited mean 42±0.4% mass loss over 8 hours, with a reduction in particle size from 100 nm to ~10 nm. PET MPs (~100 μm) photocatalytic degradation exhibited 32±0.4% of weight loss and an overall particle size reduction from 100 μm to 0.8 μm after 8 days. The photocatalytic degradation of PET due to reactive oxygen species is found to be faster for NPs compared to MPs due to the higher specific surface area of NPs. These results establish HNEs as a highly effective and environmentally benign photocatalyst for accelerating PET micro- and nanoplastic degradation, offering a low-complexity and scalable platform for advanced plastic remediation applications.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"188 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149173143","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}

{"title":"ZIF-67-Confined Fe Nanoclusters for Integrated Faradaic Deionization and Water Sterilization","authors":"Jianhui Xia,Zhong Hua,Lingyu Zhang,Ziping Wang,Xuekairui Shen,Bo Xiao,Cun Liu,Xin Gu,Yong Liu,Xun Yuan","doi":"10.1039/d6en00741d","DOIUrl":"https://doi.org/10.1039/d6en00741d","url":null,"abstract":"Electrochemical water purification technologies capable of performing desalination and disinfection within a single process unit represent a transformative solution to the global challenge of freshwater scarcity. However, the rational integration of these two functions at the electrode level is fundamentally constrained by the divergent material requirements for efficient faradaic ion storage and robust electrocatalytic oxidant generation. Here, we demonstrate that sub-nanometer iron nanoclusters (Fe NCs) spatially confined within a zeolitic imidazolate framework (ZIF-67) via a pore-mediated vapor diffusion (PVD) strategy reconcile these competing demands within a single electrode architecture. The nanoconfinement of Fe NCs within the ZIF-67 micropores serves a dual purpose: it drastically shortens the solid-state chloride-ion diffusion pathways, enabling ultrafast faradaic charge storage with exceptional cycling stability, while simultaneously creating highly active catalytic sites for the continuous in situ electro-generation of reactive oxygen species (ROS) and reactive chlorine species (RCS). Of note, the electrode operates as a “capture-and-kill” platform, wherein negatively charged bacteria are electrostatically enriched at the anode surface and subsequently eradicated by the locally generated oxidative species, with dead cells desorbing during electrode regeneration. The optimized Fe NCs@ZIF-67 electrode delivers a competitive desalination capacity of 49.3 mg g-1, an ultrafast desalination rate of 0.31 mg g-1 s-1, and nearly 100% capacity retention over 20 cycles, while achieving the efficient inactivation of Escherichia coli. This work offers a nanoconfinement-driven blueprint for designing multifunctional electrodes that bridge the longstanding divide between electrochemical desalination and water disinfection.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"5 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152765","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}

{"title":"Engineered nanomaterials modulate arbuscular mycorrhizal symbiosis and rhizosphere functions: implications for plant growth and stress resilience","authors":"Yueyue Li,Jiabao Wu,Song Peng,Jiajia Wu,Zhemin Jia,Zhenyu Wang,Zhenggao Xiao","doi":"10.1039/d6en00669h","DOIUrl":"https://doi.org/10.1039/d6en00669h","url":null,"abstract":"Arbuscular mycorrhizal fungi (AMF) form symbioses with plant roots that significantly enhance host nutrient acquisition and stress tolerance. Engineered nanomaterials (ENMs) can modulate this symbiosis; however, existing studies report highly variable outcomes, and a systematic, quantitative synthesis of the dose-response patterns and holistic interaction mechanisms is currently lacking. Here, we used a bibliometric analysis to document the paradigm shift in ENM-AMF research from early ecotoxicity assessments to nano-enabled growth promotion, followed by a quantitative meta-analysis to assess the concentration-dependent effects of ENMs on plant-AMF symbiosis. Meta-regression demonstrates dose-dependent responses of AMF-colonized plants to ENMs, with low concentrations promoting plant growth, photosynthetic traits and nutrient accumulation and high concentrations exerting inhibitory effects. At low doses, ENMs may promote plant growth by enhancing AMF colonization, increasing rhizosphere nutrient availability and recruiting beneficial microorganisms, thereby strengthening nutrient acquisition and exchange within the plant-AMF symbiosis. Furthermore, ENMs enhance plant tolerance to biotic and abiotic stresses by promoting AMF colonization and function, activating plant defense signaling pathways, and strengthening antioxidant capacity and ion homeostasis. Crucially, this study introduces an integrated framework linking ENMs effects on AMF colonization, plant physiological responses, and rhizosphere microecological processes, addressing the limitations of previous fragmented evaluations. These findings offer both a theoretical basis and quantitative benchmarks for optimizing the combined application of nanomaterials and mycorrhizal resources based on application concentration, thereby laying a scientific foundation for green and sustainable agricultural development.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"24 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149013597","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}

{"title":"Optimization of carbon–nitrogen allocation in rice by manganese ferrite nanomaterials: improved nutritional storage quality and safety evaluation","authors":"Yan Feng,Le Yue,Zhenggao Xiao,Chuanxi Wang,Jiayi Chen,Zhenyu Wang","doi":"10.1039/d6en00172f","DOIUrl":"https://doi.org/10.1039/d6en00172f","url":null,"abstract":"Nanomaterials (NMs) have been proven effective in boosting crop yields and nutritional quality. However, the safety of crop fruits affected by NMs and their impacts on the soil environment remain unclear. This study systematically investigated the nutritional quality and storage potential using foliar-applied manganese ferrite (MnFe2O4) NMs. At the optimal concentration of 50 mg L−1, MnFe2O4 NMs increased the rice yield by 99.2%. Mechanistically, the carbon allocation in leaves and nitrogen utilization in roots were synergistically optimized, improving the resource-use efficiency, which further enhanced rice grain storage quality by increasing amylose content, promoting abscisic acid synthesis, and activating antioxidant enzymes. In vitro colonic fermentation simulations demonstrated that NM-treated grains exhibited an 83.1% higher resistant starch content, which selectively promoted beneficial gut microbiota and stimulated short-chain fatty acid production by 14.7–22.4%. Furthermore, post-harvest soil analysis revealed no immediate adverse effects on nematode communities or enzyme activities, with increased bacterivorous nematode populations and upregulated urease and catalase activities observed. We acknowledge that these short-term endpoints are insufficient for a full safety assessment. Nonetheless, our results reveal significant agricultural potential, though long-term studies are still required to verify sustainability.","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":"61 1","pages":""},"PeriodicalIF":8.131,"publicationDate":"2026-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148980700","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}