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Generating allometric scaling relationships for aquatic species and metallic nanomaterials using nano-QSARs 利用纳米qsar生成水生物种和金属纳米材料的异速缩放关系。
IF 5.5 3区 环境科学与生态学
NanoImpact Pub Date : 2026-01-01 Epub Date: 2026-02-13 DOI: 10.1016/j.impact.2026.100612
Surendra Balraadjsing , Willie J.G.M. Peijnenburg , Martina G. Vijver
{"title":"Generating allometric scaling relationships for aquatic species and metallic nanomaterials using nano-QSARs","authors":"Surendra Balraadjsing ,&nbsp;Willie J.G.M. Peijnenburg ,&nbsp;Martina G. Vijver","doi":"10.1016/j.impact.2026.100612","DOIUrl":"10.1016/j.impact.2026.100612","url":null,"abstract":"<div><div>Species traits differ between organisms and result in variable sensitivity towards contaminants. Body size is regarded as a “master trait” as it correlates and scales with several internal processes within organisms such as their metabolic rate. Smaller-sized species typically have higher metabolic and uptake rates and thus tend to be more sensitive to contaminants. While the correlation between body size and toxicity has been investigated previously, this is in its infancy for engineered nanomaterials (ENMs). This study investigates size-dependent scaling relationships between different species groups and the toxicity of metallic ENMs. Nano-QSARs were used to generate data that mimic controlled laboratory experiments, which are subsequently fitted to statistical models. Results indicated that the toxicity of ENMs scales linearly with body size, whereby smaller-sized species (crustaceans and phytoplankton) were generally more sensitive. Size-dependent scaling relationships have the potential to enable informed extrapolation across species when toxicity data are limited. This can assist in prioritizing the generation of experimental data, potentially reducing the necessity for further animal testing.</div></div>","PeriodicalId":18786,"journal":{"name":"NanoImpact","volume":"41 ","pages":"Article 100612"},"PeriodicalIF":5.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146202281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Impact of tire particles and tire leachate contaminants on plant physiology and soil health: Case study in mung bean and tomato 轮胎颗粒和轮胎渗滤液污染物对植物生理和土壤健康的影响:以绿豆和番茄为例。
IF 5.5 3区 环境科学与生态学
NanoImpact Pub Date : 2026-01-01 Epub Date: 2025-11-30 DOI: 10.1016/j.impact.2025.100601
Snehal Wasnik, Shuo Cheng, Kimleng Keang, Haoge Zhang, Jeffrey S. Cross
{"title":"Impact of tire particles and tire leachate contaminants on plant physiology and soil health: Case study in mung bean and tomato","authors":"Snehal Wasnik,&nbsp;Shuo Cheng,&nbsp;Kimleng Keang,&nbsp;Haoge Zhang,&nbsp;Jeffrey S. Cross","doi":"10.1016/j.impact.2025.100601","DOIUrl":"10.1016/j.impact.2025.100601","url":null,"abstract":"<div><div>Tire particles and their associated leachates represent emerging microplastic pollution of growing concern. The accumulation of tire-derived pollutants beside road agricultural systems remains poorly characterized, yet species-specific responses to these pollutants also remain poorly understood. This study investigated the differential impacts of tire particles and tire leachate on germination, plant growth, photosynthetic function, and oxidative stress response in two ecologically important crops. Mung bean (<em>Vigna radiata</em>) and tomato (<em>Solanum lycopersicum</em>) were exposed to tire particles (0.1, 1, and 10 g/kg) and tire leachate (10 %, 20 % and 30 %) in soil medium under controlled greenhouse conditions. The tomato plant exhibited superior resistance, mounting a robust, induced superoxide dismutase (SOD) response that successfully mitigated systemic stress and maintained growth. Tire leachate exposure in mung beans causes high Molondialdegyde (MDA) accumulation and significant chlorophyll degradation. This damage coincided with the signifying failure of the antioxidant defense system. Tire-leachate significantly alters soil dynamics, increasing available nitrogen in mung bean soil while causing phosphorus immobilization in tomato soil, demonstrating complex tire-derived contaminant soil-plant interactions. Principal components analysis (PCA) shows a distinct metabolic fingerprint for each treatment, inducing fundamental biochemical reorganization in both species. This study demonstrates that tire contamination effects are highly species-dependent, with mung bean roots being sensitive and inhibition, while tomato growth remained stable, despite clear internal stress. The findings highlight that the highly bioavailable leachate fraction poses the most acute threat to plant health and underscore the critical need for species-specific risk assessment for tire-derived contamination.</div></div>","PeriodicalId":18786,"journal":{"name":"NanoImpact","volume":"41 ","pages":"Article 100601"},"PeriodicalIF":5.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145661570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
The legacy in nanosafety research and future perspectives 纳米安全研究的遗产和未来展望。
IF 5.5 3区 环境科学与生态学
NanoImpact Pub Date : 2026-01-01 Epub Date: 2025-12-17 DOI: 10.1016/j.impact.2025.100609
Bernd Nowack , Philip Demokritou
{"title":"The legacy in nanosafety research and future perspectives","authors":"Bernd Nowack ,&nbsp;Philip Demokritou","doi":"10.1016/j.impact.2025.100609","DOIUrl":"10.1016/j.impact.2025.100609","url":null,"abstract":"","PeriodicalId":18786,"journal":{"name":"NanoImpact","volume":"41 ","pages":"Article 100609"},"PeriodicalIF":5.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145794486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Bio-based microplastics increase the horizontal transfer of antibiotic resistance genes in aquatic environments 生物基微塑料增加了水生环境中抗生素抗性基因的水平转移。
IF 5.5 3区 环境科学与生态学
NanoImpact Pub Date : 2026-01-01 Epub Date: 2026-02-14 DOI: 10.1016/j.impact.2026.100613
Yousuf Dar Jaffer , Fazel Abdolahpur Monikh , Nhung H.A. Nguyen , Alena Sevcu , Nafiu Abdulkadir , Jakub Raha , Alberto Katsumiti , Ainhoa Bilbao , Korinna Altman , Hans-Peter Grossart
{"title":"Bio-based microplastics increase the horizontal transfer of antibiotic resistance genes in aquatic environments","authors":"Yousuf Dar Jaffer ,&nbsp;Fazel Abdolahpur Monikh ,&nbsp;Nhung H.A. Nguyen ,&nbsp;Alena Sevcu ,&nbsp;Nafiu Abdulkadir ,&nbsp;Jakub Raha ,&nbsp;Alberto Katsumiti ,&nbsp;Ainhoa Bilbao ,&nbsp;Korinna Altman ,&nbsp;Hans-Peter Grossart","doi":"10.1016/j.impact.2026.100613","DOIUrl":"10.1016/j.impact.2026.100613","url":null,"abstract":"<div><div>The role of microplastics as vectors for horizontal gene transfer (HGT) of antibiotic resistance genes (ARGs) is increasingly recognized. This study investigated whether bio-based microplastics, often promoted as environmentally friendly alternatives, exhibit similar or enhanced HGT potential compared to conventional plastics. We examined the HGT rates of the trimethoprim resistance gene (<em>dfrA1</em>) and tetracycline resistance gene (<em>tetA</em>), carried on a broad-host-range plasmid, among <em>Escherichia coli</em> (donor) and <em>Vibrio parahaemolyticus</em>, <em>Pseudomonas</em> sp., or a natural lake microbial community (recipients). Four bio-based polymer types—polylactic acid (PLA) granules, <em>co</em>mmercial PLA, high-density polyethylene (HDPE) granules, and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)- were compared with two conventional microplastics, polyethylene terephthalate (PET) and bottle-derived HDPE. The bio-based microplastics exhibited significantly higher HGT frequencies, with a 21–48-fold increase compared to control chitosan in single-strain experiments and a 13-fold increase within the lake microbial community. 16S rRNA amplicon sequencing revealed distinct bacterial community compositions colonizing different microplastic types in the lake water. The transconjugant communities, indicative of successful HGT events, were strongly influenced by microplastic type. While <em>Nannocystis</em> was generally dominant, the PLA (granule) microplastic exhibited a unique profile dominated by <em>Candidatus</em> Megaira and <em>Niveispirillum</em>. Additionally, <em>Flavobacterium</em> and <em>Fluviicola</em> were uniquely detected as transconjugants on HDPE (granule). These findings demonstrate that bioplastics have a significant influence on the selective enrichment of specific transconjugant genera, suggesting a prominent role of microplastics, particularly bio-based plastics, in shaping ARG dissemination within complex microbial ecosystems. We recommend a comprehensive risk assessment of bio-based plastics, particularly their potential to enhance the spread of ARGs, before their widespread implementation in consumer products.</div></div>","PeriodicalId":18786,"journal":{"name":"NanoImpact","volume":"41 ","pages":"Article 100613"},"PeriodicalIF":5.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146207265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Polystyrene nanoplastics induce ovarian granulosa cell senescence via autophagy suppression 聚苯乙烯纳米塑料通过抑制细胞自噬诱导卵巢颗粒细胞衰老。
IF 5.5 3区 环境科学与生态学
NanoImpact Pub Date : 2026-01-01 Epub Date: 2025-12-06 DOI: 10.1016/j.impact.2025.100607
Haoyue Hu , Haotong Ouyang , Lien Ma , Qianhan Xu , You Peng , Meng Meng , Tao Zhang
{"title":"Polystyrene nanoplastics induce ovarian granulosa cell senescence via autophagy suppression","authors":"Haoyue Hu ,&nbsp;Haotong Ouyang ,&nbsp;Lien Ma ,&nbsp;Qianhan Xu ,&nbsp;You Peng ,&nbsp;Meng Meng ,&nbsp;Tao Zhang","doi":"10.1016/j.impact.2025.100607","DOIUrl":"10.1016/j.impact.2025.100607","url":null,"abstract":"<div><div>Polystyrene nanoplastics (PS-NPs) pose escalating threats to female reproductive health, yet their impact on ovarian granulosa cell senescence remains poorly understood. This study investigates the mechanisms by which 50 nm PS-NPs induce senescence in human ovarian granulosa KGN cells. Exposure to PS-NPs (50–250 μg/mL) triggered concentration-dependent cellular senescence in KGN cells, as evidenced by increased senescence-associated β-galactosidase (SA-β-gal) activity, suppressed Lamin B1 expression, and enhanced activation of the P53/P16 signaling axis. PS-NPs also triggered both a senescence-associated secretory phenotype (SASP) and senescence-associated mitochondrial dysfunction (SAMD), marked by upregulated pro-inflammatory cytokines (IL-6, IL-8, IL-1β) and increased reactive oxygen species (ROS) levels coupled with mitochondrial membrane potential (ΔΨm) disruption. Mechanistically, we demonstrated that PS-NP-induced senescence in KGN cells is mediated by autophagy suppression. Autophagy modulation experiments revealed that rapamycin (an autophagy activator) reversed PS-NP-triggered senescence, SASP and SAMD, whereas 3-methyladenine (3-MA, an autophagy inhibitor) exacerbated these effects. These results establish autophagy suppression as a critical mediator of PS-NP-induced granulosa cell senescence and highlight the therapeutic potential of autophagy enhancement to mitigate PS-NPs-associated reproductive toxicity. Our study provides novel insights into the molecular pathways linking environmental nanoplastics to premature ovarian aging, underscoring the urgent need for strategies to address nanoplastics exposure in reproductive health.</div></div>","PeriodicalId":18786,"journal":{"name":"NanoImpact","volume":"41 ","pages":"Article 100607"},"PeriodicalIF":5.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145708081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Effects of true to life polyethylene terephthalate and polycaprolactone nanoparticles on macrophages under a repeated exposure mode 在重复暴露模式下,真实的聚对苯二甲酸乙二醇酯和聚己内酯纳米颗粒对巨噬细胞的影响。
IF 5.5 3区 环境科学与生态学
NanoImpact Pub Date : 2026-01-01 Epub Date: 2026-02-21 DOI: 10.1016/j.impact.2026.100615
Véronique Collin-Faure , Aliro Villacorta , Hélène Diemer , Sarah Cianférani , Ricard Marcos , Alba Hernandez , Marie Carrière , Elisabeth Darrouzet , Thierry Rabilloud
{"title":"Effects of true to life polyethylene terephthalate and polycaprolactone nanoparticles on macrophages under a repeated exposure mode","authors":"Véronique Collin-Faure ,&nbsp;Aliro Villacorta ,&nbsp;Hélène Diemer ,&nbsp;Sarah Cianférani ,&nbsp;Ricard Marcos ,&nbsp;Alba Hernandez ,&nbsp;Marie Carrière ,&nbsp;Elisabeth Darrouzet ,&nbsp;Thierry Rabilloud","doi":"10.1016/j.impact.2026.100615","DOIUrl":"10.1016/j.impact.2026.100615","url":null,"abstract":"<div><div>Micro and nanoplastics are pollutants which concentration in different biotopes increases continuously over time, which poses the question of their potential effects on health. In animals, these micro and nanoplastics are recognized as particulate materials and thus handled by macrophages,which are therefore a key cell type to study. Most studies have used an experimental scheme in which the cells of interest are exposed to a single dose of plastics, and where the readout of the studied parameters is made immediately after exposure. However, this classical experimental scheme does not take into account the impact of biopersistence, nor the potential cellular adaptation that may take place when cells are exposed repeatedly to a low dose of plastics. We thus used a repeated exposure scheme, in order to better take into account these phenomena. Within this frame, we compared the macrophages responses to a persistent nanoplastic, i.e. true-to-life polyethylene terephthalate nanoparticles and to a biodegradable nanoplastic, i.e. polycaprolactone, by a combination of proteomic and targeted experiments. Our results show that under this repeated exposure scheme, the proteome changes were of a lesser extent than under the acute exposure mode, indicating cell adaptation. However, polyethylene terephthalate nanoparticles induced oxidative stress, a slight depression of phagocytosis and a pro-inflammatory response, while polycaprolactone nanoparticles induced a depression of macrophages functions, especially regarding cytokines production (Interleukin 6, MCP-1, TNF alpha) in response to a bacterial challenge (represented by a lipopolysaccharide challenge), indicating harmful but different effects of both nanoplastics even in the repeated exposure scheme.</div></div>","PeriodicalId":18786,"journal":{"name":"NanoImpact","volume":"41 ","pages":"Article 100615"},"PeriodicalIF":5.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147276698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
In silico temporal mapping of fibrogenic and immune gene dynamics in rat lung following crystalline silica exposure 结晶二氧化硅暴露后大鼠肺纤维化和免疫基因动力学的时间定位。
IF 5.5 3区 环境科学与生态学
NanoImpact Pub Date : 2026-01-01 Epub Date: 2026-03-07 DOI: 10.1016/j.impact.2026.100618
Peng Lei , Håkan Wallin , Shan Zienolddiny-Narui , Johanna Samulin Erdem
{"title":"In silico temporal mapping of fibrogenic and immune gene dynamics in rat lung following crystalline silica exposure","authors":"Peng Lei ,&nbsp;Håkan Wallin ,&nbsp;Shan Zienolddiny-Narui ,&nbsp;Johanna Samulin Erdem","doi":"10.1016/j.impact.2026.100618","DOIUrl":"10.1016/j.impact.2026.100618","url":null,"abstract":"<div><div>Inhalation of crystalline silica (CS) is linked to pulmonary silicosis, fibrosis, and cancer in exposed workers, but the underlying molecular mechanisms are obscure. We obtained publicly available datasets in the NCBI Gene Expression Omnibus for CS-induced gene expression changes in the rat lung. Seven datasets were identified via a PRISMA-guided systematic search using predefined databases, search terms, and eligibility criteria. Data from seven datasets, in total 194 rats and 5726 genes were classified for responses after equivalent to acute (≤2 days), sub-acute (3 days to 1 month), and sub-chronic exposures (1 to 6 months). Following normalization and batch correction, transcriptomic datasets were subjected to temporal clustering, pathway-level gene set enrichment analysis, immune cell deconvolution, and machine-learning–based feature selection to identify key molecular signatures associated with crystalline silica exposure. The temporal clustering revealed eight distinct gene clusters. Acute responses were marked by macrophage-driven proinflammatory cytokines (TNF/NF-κB, <em>Il1b</em> signaling) and neutrophil-recruiting chemokines (<em>Cxcl2</em>). The sub-acute responses showed transient suppression of interferon signaling, while later responses were dominated by persistent inflammatory and fibrosis-related programs reflected by <em>Spp1</em>, TGF-β signaling, and glycolytic metabolic reprogramming. Immune cell deconvolution indicated a neutrophil influx in the sub-acute time points, followed by progressive macrophage accumulation throughout exposure. ML analyses highlighted <em>Chi3l1</em>, <em>Mt1</em>, <em>Phka1</em>, and <em>Sod2</em> as top predictive biomarkers, which were consistently changed across all time points, enriched in immune and fibrotic pathways, and strongly correlated with macrophage subtypes. Verification using transcriptomic profiles from chronic obstructive pulmonary disease and idiopathic pulmonary fibrosis lungs further supported their predictive value. This integrative approach revealed temporal gene expression patterns and indicated both known and novel mechanisms and lung cell dynamics underlying CS-lung pathogenesis.</div></div>","PeriodicalId":18786,"journal":{"name":"NanoImpact","volume":"41 ","pages":"Article 100618"},"PeriodicalIF":5.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147390534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 the embryotoxicity of polypropylene micro- and nanoplastics generated through simulated environmental weathering in zebrafish (Danio rerio) 斑马鱼模拟环境风化产生聚丙烯微塑料和纳米塑料的胚胎毒性评估。
IF 5.5 3区 环境科学与生态学
NanoImpact Pub Date : 2026-01-01 Epub Date: 2026-02-18 DOI: 10.1016/j.impact.2026.100616
Kauê Pelegrini , Camilo Alexandre Jablonski , Luiza Wilges Kist , Giovanna Medeiros Tavares de Oliveira , Talita Carneiro Brandão Pereira , Nara Regina de Souza Basso , Rosane Angélica Ligabue , Maurício Reis Bogo
{"title":"Assessing the embryotoxicity of polypropylene micro- and nanoplastics generated through simulated environmental weathering in zebrafish (Danio rerio)","authors":"Kauê Pelegrini ,&nbsp;Camilo Alexandre Jablonski ,&nbsp;Luiza Wilges Kist ,&nbsp;Giovanna Medeiros Tavares de Oliveira ,&nbsp;Talita Carneiro Brandão Pereira ,&nbsp;Nara Regina de Souza Basso ,&nbsp;Rosane Angélica Ligabue ,&nbsp;Maurício Reis Bogo","doi":"10.1016/j.impact.2026.100616","DOIUrl":"10.1016/j.impact.2026.100616","url":null,"abstract":"<div><div>Polypropylene (PP), a thermoplastic polymer of the polyolefin group, is among the most widely produced plastics worldwide due to its excellent physicochemical properties and versatile applications. However, improper disposal of PP and exposure to natural physicochemical and biological processes in the environment can lead to its fragmentation into smaller particles, known as PP micro- and nanoplastics (MNPs). The reduced size of these particles increases their bioavailability and, consequently, their potential interaction. In this study, PP MNPs were generated to simulate environmental weathering and fragmentation through a combination of photodegradation and mechanical degradation techniques. The resulting MNPs were used to evaluate the effects of exposure at different concentrations on morphological, functional, and behavioral parameters during the early developmental stages of zebrafish (<em>Danio rerio</em>). After a six-day exposure period, the findings revealed that PP MNPs accelerated hatching rates, enhanced spontaneous tail coiling (STC), accumulated on the chorion surface, and elevated maximum acceleration, total absolute turn angle, and diminished frequency of entries into the periphery. Collectively, these results indicate that exposure to PP MNPs induces early developmental and behavioral alterations in zebrafish embryos and larvae, suggesting primary toxic effects during the embryonic and larval stages.</div></div>","PeriodicalId":18786,"journal":{"name":"NanoImpact","volume":"41 ","pages":"Article 100616"},"PeriodicalIF":5.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146258698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Polystyrene nanoplastics modulate neurite length in a size-specific manner 聚苯乙烯纳米塑料以特定尺寸的方式调节神经突长度。
IF 5.5 3区 环境科学与生态学
NanoImpact Pub Date : 2026-01-01 Epub Date: 2026-02-19 DOI: 10.1016/j.impact.2026.100614
Veronika Górová , Thuy Thi Lai , Alexey M. Afonin , Kore Nemeth , Anssi Pelkonen , Tarja Malm , Pasi Jalava , Riikka Lampinen , Katja M. Kanninnen
{"title":"Polystyrene nanoplastics modulate neurite length in a size-specific manner","authors":"Veronika Górová ,&nbsp;Thuy Thi Lai ,&nbsp;Alexey M. Afonin ,&nbsp;Kore Nemeth ,&nbsp;Anssi Pelkonen ,&nbsp;Tarja Malm ,&nbsp;Pasi Jalava ,&nbsp;Riikka Lampinen ,&nbsp;Katja M. Kanninnen","doi":"10.1016/j.impact.2026.100614","DOIUrl":"10.1016/j.impact.2026.100614","url":null,"abstract":"<div><div>Plastic production continues to rise in 2025, despite environmental concerns and growing evidence pointing to its adverse impact on human health. Our knowledge of how micro- and nano-plastics affect brain health is, however, still in its infancy. To understand how neurons respond to stress caused by plastics, we exposed primary neurons to polystyrene nanoplastics (PS-NPs). We evaluated effects of the three different sizes of PS-NPs (50, 100, and 250 nm) at concentrations ranging from 0.05 μg/ml to 1 μg/ml. The exposure, relatively low in the tested concentrations and short in the exposure regimen (24 h), did not lead to impairments in neuronal metabolism. However, confocal imaging confirmed the uptake of 250 nm particles by neurons. Despite the lack of metabolic effects, the treatment contributed to neurite elongation in a size-specific manner: the effects were observed upon 50 nm PS-NPs treatment, but not when challenged by the 250 nm particles. Furthermore, subtle but statistically significant changes in the neuronal transcriptome were induced by the smaller, but not larger particles. Additionally, electrophysiological measurements of firing rate and spike amplitude at the time points of 2 and 24 h were not affected by the PS-NPs treatment. These findings highlight the importance of focusing further research specifically on nanoscale plastic particles in the context of brain health.</div></div>","PeriodicalId":18786,"journal":{"name":"NanoImpact","volume":"41 ","pages":"Article 100614"},"PeriodicalIF":5.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146776434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Maize adaptation to low-dose nanoplastic–lead co-contamination: Foliar metabolic reprogramming and phyllospheric microbiome restructuring 玉米对低剂量纳米塑料-铅共污染的适应:叶面代谢重编程和叶根圈微生物组重组
IF 5.5 3区 环境科学与生态学
NanoImpact Pub Date : 2026-01-01 Epub Date: 2025-12-18 DOI: 10.1016/j.impact.2025.100606
Qian Fu, Jin-sheng Shi, Jin-long Lai, Yu Zhang, Yan Huang, Xue-gang Luo
{"title":"Maize adaptation to low-dose nanoplastic–lead co-contamination: Foliar metabolic reprogramming and phyllospheric microbiome restructuring","authors":"Qian Fu,&nbsp;Jin-sheng Shi,&nbsp;Jin-long Lai,&nbsp;Yu Zhang,&nbsp;Yan Huang,&nbsp;Xue-gang Luo","doi":"10.1016/j.impact.2025.100606","DOIUrl":"10.1016/j.impact.2025.100606","url":null,"abstract":"<div><div>Nanoplastics (NPs) and lead (Pb), as emerging environmental pollutants, have been rarely studied in terms of their combined effects on crop growth and metabolic processes under low-dose co-exposure conditions. This study simulated rain-mediated co-exposure of maize seedlings to NPs and Pb at environmentally relevant concentrations (400 μg/L) to elucidate the metabolic responses in leaves and the dynamics of phyllosphere microbial communities. Short-term exposure (45 days) to NPs and Pb did not significantly impair maize seedling growth; however, it induced the accumulation of essential macronutrients in leaves. The metabolic adaptation of maize leaves to NPs and Pb exposure was characterized by a reduction in carbon metabolic flux coupled with an enhancement in lipid metabolic flux. Furthermore, plants responded to co-exposure by activating key metabolic pathways such as those involving ABC transporters, nucleotide metabolism, and amino acid metabolism. Concurrently, the phyllosphere microbiome exhibited structural reorganization, with enrichment of stress-tolerant microbial taxa (e.g., <em>Acidobacteria</em>, <em>Chloroflexi</em>), activation of microbial redox systems, and enhanced capacity of the leaf microbiota to adapt to NPs and Pb exposure. The findings offer theoretical insights into assessing agricultural environmental impacts associated with combined exposure to emerging pollutants, phyllosphere microbial ecology, and plant stress resistance.</div></div>","PeriodicalId":18786,"journal":{"name":"NanoImpact","volume":"41 ","pages":"Article 100606"},"PeriodicalIF":5.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145798224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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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