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Efficient peroxydisulfate activation by a CoNiFc-MOF for rapid removal of emerging contaminants via both radical and non-radical pathways† CoNiFc-MOF高效过氧化二硫酸盐活化,通过自由基和非自由基途径快速去除新出现的污染物
IF 5.8 2区 环境科学与生态学
Environmental Science: Nano Pub Date : 2025-06-03 DOI: 10.1039/D4EN01053A
Maierhaba Kuerban, Yun Wang, Dilnur Dilxat, Nuzahat Habibul and Yanyun Hu
{"title":"Efficient peroxydisulfate activation by a CoNiFc-MOF for rapid removal of emerging contaminants via both radical and non-radical pathways†","authors":"Maierhaba Kuerban, Yun Wang, Dilnur Dilxat, Nuzahat Habibul and Yanyun Hu","doi":"10.1039/D4EN01053A","DOIUrl":"10.1039/D4EN01053A","url":null,"abstract":"<p >In the study presented in this paper, a multimetallic ferrocene-based metal–organic framework (CoNiFc-MOF) catalyst, characterized by a sea urchin-like morphology, was synthesized <em>via</em> a straightforward solvothermal method. The research focused on evaluating the efficacy of peroxydisulfate (PDS) activation by the CoNiFc-MOF catalyst for the removal of emerging contaminants. The results indicated that the CoNiFc-MOF catalyst achieved a removal efficiency exceeding 98% for 10 mg L<small><sup>−1</sup></small> bisphenol A (BPA) within a 5 min timeframe. The activation mechanism of PDS was elucidated through electron paramagnetic resonance (EPR), revealing the involvement of both radical and non-radical oxidation pathways. In this non-radical mechanism, BPA undergoes oxidation <em>via</em> a direct electron transfer pathway facilitated by the metastable reaction complex (CoNiFc-MOF/PDS*). The leaching percentages of Co, Ni, and Fe were calculated to be 3.9%, 3.8%, and 7.5%, respectively, based on ICP-MS analysis of the reaction solution before and after catalysis. The CoNiFc-MOF catalyst demonstrated a high removal efficiency, consistently maintaining over 90% efficiency across five consecutive cycles, indicative of its remarkable catalytic activity and stability. The intermediates of BPA were further identified using liquid chromatography-mass spectrometry (LC-MS), leading to the proposal of four potential degradation pathways. The catalyst also proved high efficacy in the removal of bisphenol B (BPB), tetracycline (TC), and oxytetracycline (OTC), with the reaction rate being closely associated with its structural characteristics and properties. Moreover, the CoNiFc-MOF catalyst is notable for its straightforward synthesis process and low cost, offering a promising design strategy for the development of efficient PDS-activated catalytic materials.</p>","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":" 7","pages":" 3514-3529"},"PeriodicalIF":5.8,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144201411","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
Multi-omics analyses reveal the mechanisms of developmental toxicity of a covalent organic framework to the roots of rice (Oryza sativa) seedlings† 多组学分析揭示了共价有机框架对水稻幼苗根系的发育毒性机制
IF 5.8 2区 环境科学与生态学
Environmental Science: Nano Pub Date : 2025-06-03 DOI: 10.1039/D5EN00008D
Xile Deng, Yujun Xu, Yanan Deng, Simin Yu and Le Qian
{"title":"Multi-omics analyses reveal the mechanisms of developmental toxicity of a covalent organic framework to the roots of rice (Oryza sativa) seedlings†","authors":"Xile Deng, Yujun Xu, Yanan Deng, Simin Yu and Le Qian","doi":"10.1039/D5EN00008D","DOIUrl":"10.1039/D5EN00008D","url":null,"abstract":"<p >Covalent organic frameworks (COFs) are increasingly explored for applications in chemistry, medicine, and biology, yet their ecotoxicological profiles remain poorly defined. In this study, we assessed the developmental toxicity of ethidium bromide-based covalent organic frameworks (EB-COFs) in rice (<em>Oryza sativa</em>) seedlings in hydroponic culture. Seedlings were exposed to EB-COFs at concentrations ranging from 0.1 to 1000 mg L<small><sup>−1</sup></small> for 14 days. Shoot length, fresh weight, total chlorophyll content, and photosynthetic rate were unaffected at 100 to 1000 mg L<small><sup>−1</sup></small>; however, root length was significantly inhibited, particularly at 1000 mg L<small><sup>−1</sup></small>, where oxidative damage was observed in roots. To elucidate underlying mechanisms, we performed transcriptomic and metabolomic profiling on roots exposed to 1000 mg L<small><sup>−1</sup></small> EB-COFs. Differentially expressed genes (DEGs) involved in development and stress responses, for example, <em>WRKY24</em>, were found to be upregulated. Metabolomic profiling identified 1190 differentially accumulated metabolites (DAMs), including key compounds involved in oxidative stress response and root development such as ferulic acid and <em>p</em>-coumaric acid. Pathway enrichment analysis revealed that EB-COFs primarily affected phenylpropanoid biosynthesis, glutathione metabolism, and tryptophan metabolism, which are critical for root growth and stress defense. Our study provides the first comprehensive demonstration that EB-COFs selectively impair rice root growth by inducing oxidative stress and perturbing key metabolic and signaling pathways. These results suggest that future environmental safety assessments of COF materials should include their potential impact on plant health, particularly focusing on oxidative stress and root development.</p>","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":" 7","pages":" 3653-3668"},"PeriodicalIF":5.8,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144201410","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
Fate models of nanoparticles in the environment: a critical review and prospects† 纳米粒子在环境中的命运模型:综述与展望
IF 5.8 2区 环境科学与生态学
Environmental Science: Nano Pub Date : 2025-06-02 DOI: 10.1039/D5EN00342C
Ruiyu Zhang, Xiaoxin Zheng, Wenhong Fan, Xiangrui Wang, Tianhui Zhao, Xiaoli Zhao, Willie J. G. M. Peijnenburg, Martina G. Vijver and Ying Wang
{"title":"Fate models of nanoparticles in the environment: a critical review and prospects†","authors":"Ruiyu Zhang, Xiaoxin Zheng, Wenhong Fan, Xiangrui Wang, Tianhui Zhao, Xiaoli Zhao, Willie J. G. M. Peijnenburg, Martina G. Vijver and Ying Wang","doi":"10.1039/D5EN00342C","DOIUrl":"10.1039/D5EN00342C","url":null,"abstract":"<p >The increasing use of nanoparticles (NPs) has raised concerns about their risks to the environment. However, the dynamics of the fate of NPs and their interplay with organisms make it challenging to perform an accurate and process-based hazard and risk characterization. Thus, it is crucial to estimate the concentrations of NPs after they are transported and transformed for their risk assessment (<em>i.e.</em>, evaluating the fate of NPs). This will provide more accurate results than using the mass of released NPs. However, experimental limitations make it challenging to directly quantify and track NPs. Hence, using mathematical models to simulate the fate of NPs has become a promising alternative, but previous reviews failed to systematically evaluate the strengths and weaknesses of these models. Accordingly, this review is the first to analyze and evaluate the fate models of NPs from a mathematical perspective. Specifically, we discuss the calculation methods and parameters for quantifying the transport processes and transformation reactions of NPs in environmental compartments (including water, soil, sediment, and atmosphere) used by different models and categorize and compare these processes in each compartment. Besides, this study provides recommendations for the further development of fate models of NPs and proposes an optimal modeling procedure for simulating the fate of NPs. The procedure provides the optimal simulation equations and parameters for each transport and transformation process in each compartment, intending to quantify these processes and the fate of NPs, explicitly considering the knowledge of uncertainties. Furthermore, we provide suggestions for constructing fate models for novel NPs and applying machine learning in these models to improve the fate models of NPs and environmental risk assessment.</p>","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":" 7","pages":" 3394-3412"},"PeriodicalIF":5.8,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144192806","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
Potential feeding deterrents of Adelges tsugae found in biological control flies. 在生物防治蝇中发现的潜在摄食威慑物。
IF 2.1 3区 生物学
The Science of Nature Pub Date : 2025-06-02 DOI: 10.1007/s00114-025-01996-y
Olivia Andrews, Anne C Jones, Mark Whitmore, Scott Salom
{"title":"Potential feeding deterrents of Adelges tsugae found in biological control flies.","authors":"Olivia Andrews, Anne C Jones, Mark Whitmore, Scott Salom","doi":"10.1007/s00114-025-01996-y","DOIUrl":"10.1007/s00114-025-01996-y","url":null,"abstract":"<p><p>The invasive hemlock woolly adelgid, Adelges tsugae (HWA, Hemiptera: Adelgidae), is a detrimental pest to native eastern and Carolina hemlocks. In the last 2 decades, biological control utilizing two species of Laricobius beetles (Coleoptera: Derodontidae) has been of focus in the widespread effort to control HWA. Recently, two species of silver flies, native to the Pacific Northwest, Leucotaraxis argenticollis Zetterstedt and Leucotaraxis piniperda Malloch (Diptera: Chamaemyiidae), are being investigated as additional biological control agents. Releasing these two silver fly species in the eastern United States has yet to result in the establishment of these predators. During laboratory studies, Leucotaraxis larvae excreted a black substance in response to being disturbed, which contained anthraquinones previously detected in HWA. Previous research on Laricobius spp. found that the beetles likely sequestered these compounds from HWA. These compounds are feeding deterrents in other insect species. Leucotaraxis argenticollis life stages, their excrement, and honeydew produced by HWA were collected and analyzed by gas chromatography-mass spectrometry. Results showed that these anthraquinones were detected in various life stages of Le. argenticollis immatures and adults that fed on HWA. They were not detected in Le. argenticollis adults that were only fed artificial diet and water, indicating that Le. argenticollis sequesters the anthraquinones from HWA and may transmit the compounds to their eggs.</p>","PeriodicalId":794,"journal":{"name":"The Science of Nature","volume":"112 3","pages":"45"},"PeriodicalIF":2.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12130069/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144198007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of Ganoderma lucidum polysaccharide on learning and memory impairment and intestinal flora in mice with D-galactose-induced aging. 灵芝多糖对d -半乳糖致衰老小鼠学习记忆障碍及肠道菌群的影响。
IF 2.1 3区 生物学
The Science of Nature Pub Date : 2025-06-02 DOI: 10.1007/s00114-025-01997-x
Yuyang Chen, Jiahui Li, Shuang Zhang, Yuehan Zhao, Demeng Gao, Guangyu Xu
{"title":"Effects of Ganoderma lucidum polysaccharide on learning and memory impairment and intestinal flora in mice with D-galactose-induced aging.","authors":"Yuyang Chen, Jiahui Li, Shuang Zhang, Yuehan Zhao, Demeng Gao, Guangyu Xu","doi":"10.1007/s00114-025-01997-x","DOIUrl":"10.1007/s00114-025-01997-x","url":null,"abstract":"<p><p>Learning and memory impairment is one of the main manifestations of cognitive impairment. Gut flora can affect cognitive function and behavior through the gut-brain axis. Ganoderma lucidum polysaccharide (GLP) is one of the main effective components of G. lucidum, with antioxidant and anti-aging effects. In this study, the learning and memory impairment model of aging mice was established by injecting D-galactose (D-gal). The learning and memory ability of mice was tested by a water maze experiment. Also, the biochemical indexes of mouse serum and brain tissue were determined. In addition, 16S rRNA sequencing was performed on mouse feces. The results showed that GLP significantly shortened the latency of mice to find a safe platform. Also, they enhanced superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activities, increased glutamate (Glu) and acetylcholine (ACh) contents, and decreased malondialdehyde (MDA) and gamma-aminobutyric acid (GABA) contents in mice to improve antioxidant capacity, remove free radicals, and reduce lipid peroxidation and oxidative stress, thereby improving learning and memory disorders in mice. The analysis of the microflora after the intervention of GLP to improve learning and memory disorders in mice revealed changes in Lactobacillus abundance. In conclusion, D-gal causes learning memory impairment and reduced intestinal microbial diversity in aging mice, whereas GLP may ameliorate learning memory impairment by altering the distribution of Lactobacillus in the intestinal tract of mice and regulating the biosynthesis of peptidoglycan and secondary bile acids.</p>","PeriodicalId":794,"journal":{"name":"The Science of Nature","volume":"112 3","pages":"46"},"PeriodicalIF":2.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144198006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Construction of Cu-MOF@Bi2MoO6 Z-scheme heterostructure mediated by Bi nanoparticles and oxygen vacancies for ciprofloxacin degradation and mechanism investigation† Bi纳米粒子和氧空位介导的Cu-MOF@Bi2MoO6 z型异质结构的构建及环丙沙星降解机理研究
IF 5.8 2区 环境科学与生态学
Environmental Science: Nano Pub Date : 2025-06-02 DOI: 10.1039/D5EN00350D
Ranjith Kumar Dharman, Angappan Kausalya, Stella Vargheese, Senthilkumar Lakshmipathi and Tae Hwan Oh
{"title":"Construction of Cu-MOF@Bi2MoO6 Z-scheme heterostructure mediated by Bi nanoparticles and oxygen vacancies for ciprofloxacin degradation and mechanism investigation†","authors":"Ranjith Kumar Dharman, Angappan Kausalya, Stella Vargheese, Senthilkumar Lakshmipathi and Tae Hwan Oh","doi":"10.1039/D5EN00350D","DOIUrl":"10.1039/D5EN00350D","url":null,"abstract":"<p >The rational design of heterostructure photocatalysts with effective charge transfer, separation, and superior visible-light harvesting is critical for achieving effective antibiotic degradation. However, the interfacial regulation of Z-scheme heterojunctions remains challenging. Herein, Bi nanoparticles were anchored onto a Bi<small><sub>2</sub></small>MoO<small><sub>6</sub></small>@Cu-MOF heterostructure <em>via</em> a solvothermal process. Dimethylformamide significantly influenced the reaction kinetics of Bi<small><sub>2</sub></small>MoO<small><sub>6</sub></small> by coordinating with Bi<small><sup>3+</sup></small> ions and modulating their release rate during the solvothermal process. The optimized Cu-MOF and Bi<small><sub>2</sub></small>MoO<small><sub>6</sub></small> heterostructure exhibited efficient photocatalytic degradation of ciprofloxacin (CIP), achieving a rate constant of 0.0382 min<small><sup>−1</sup></small>—11.93 times as well as 18.19 times greater than that of pristine Bi<small><sub>2</sub></small>MoO<small><sub>6</sub></small> and Cu-MOF, respectively. This significant enhancement in photocatalytic performance was caused by the surface plasmon resonance (SPR) effect of Bi metal with the presence of oxygen vacancies, both of which promote charge carrier separation. Additionally, Bi metal functioned as a cocatalyst similar to noble metals, further improving the photocatalytic efficiency. The Z-scheme heterojunction was constructed based on well-matched energy band positions, while the integrated electric field provided the driving force for the reaction. Consequently, the Z-scheme heterojunction enhanced photoinduced charge carrier transfer and suppressed electron–hole recombination. Furthermore, potential CIP degradation pathways were investigated using Fukui function analysis and LC-MS. This study demonstrates the feasibility of enhancing photocatalytic efficiency by employing inexpensive Bi metal as a cocatalyst, offering a cost-effective alternative to precious noble metals.</p>","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":" 7","pages":" 3488-3502"},"PeriodicalIF":5.8,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144192807","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
The complex interaction between plants and acoustic signals: friends or foes? 植物与声音信号之间复杂的相互作用:是敌是友?
IF 2.1 3区 生物学
The Science of Nature Pub Date : 2025-05-30 DOI: 10.1007/s00114-025-01995-z
Vijay Kumar
{"title":"The complex interaction between plants and acoustic signals: friends or foes?","authors":"Vijay Kumar","doi":"10.1007/s00114-025-01995-z","DOIUrl":"10.1007/s00114-025-01995-z","url":null,"abstract":"","PeriodicalId":794,"journal":{"name":"The Science of Nature","volume":"112 3","pages":"43"},"PeriodicalIF":2.1,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144186222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of floral traits on visitation patterns in a miniature tropical stingless bee, Tetragonula iridipennis. 花性状对小型热带无刺蜜蜂访花模式的影响。
IF 2.1 3区 生物学
The Science of Nature Pub Date : 2025-05-30 DOI: 10.1007/s00114-025-01994-0
Asmi Jezeera M, Kavya Mohan N, Sreyas Sreekumar, Almut Kelber, Hema Somanathan
{"title":"Influence of floral traits on visitation patterns in a miniature tropical stingless bee, Tetragonula iridipennis.","authors":"Asmi Jezeera M, Kavya Mohan N, Sreyas Sreekumar, Almut Kelber, Hema Somanathan","doi":"10.1007/s00114-025-01994-0","DOIUrl":"10.1007/s00114-025-01994-0","url":null,"abstract":"<p><p>Miniaturisation can influence the foraging behaviour of flower visitors by shaping their sensory systems, flight capabilities, and their compatibility with floral shapes and structures. For bees, vision is a primary sensory modality, and a reduction in eye size compromises the resolution and sensitivity of vision. In Tetragonula iridipennis, a diminutive tropical stingless bee common in South Asia, we addressed the following questions: (a) Since flight capabilities are correlated with body size, does it largely utilise resources from understorey plants? (b) Does their small body size permit the utilisation of flowers with diverse morphologies? Further, we explored floral colour in relation to bee colour vision by examining if: (c) the distribution of marker points of the community floral spectra (n = 182 species) corresponds with bee photoreceptor sensitivities and (d) the colours of flowers visited or not visited by T. iridipennis form separate clusters in the bee colour space. We found a high degree of resource generalisation, with T. iridipennis visiting ~ 46% of flowering plant species (n = 215). However, three plant species accounted for the highest visitation rates (90%). There was no correlation between plant functional groups and foraging preferences. Floral shape and the interaction between floral area and shape significantly predicted visitation by T. iridipennis. Further studies on other bee species that are sympatric, closely related, and varying in body size will help understand the role of miniaturisation in foraging ecology of pollinators.</p>","PeriodicalId":794,"journal":{"name":"The Science of Nature","volume":"112 3","pages":"44"},"PeriodicalIF":2.1,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144186221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The sulphidation of ZnO nanoparticles enhances zinc recovery in Zn-starved barley (Hordeum vulgare L.): the interplay of metal acquisition and cellular homeostasis† 氧化锌纳米颗粒的硫化作用提高锌缺乏大麦(Hordeum vulgare L.)中锌的回收:金属获取与细胞内稳态的相互作用
IF 5.8 2区 环境科学与生态学
Environmental Science: Nano Pub Date : 2025-05-30 DOI: 10.1039/D4EN01165A
Izabela Jośko, Mikołaj Feculak, Patryk Oleszczuk, Bożena Czech, Mohammed Alyafei, Magdalena Sozoniuk and Mohamed Sheteiwy
{"title":"The sulphidation of ZnO nanoparticles enhances zinc recovery in Zn-starved barley (Hordeum vulgare L.): the interplay of metal acquisition and cellular homeostasis†","authors":"Izabela Jośko, Mikołaj Feculak, Patryk Oleszczuk, Bożena Czech, Mohammed Alyafei, Magdalena Sozoniuk and Mohamed Sheteiwy","doi":"10.1039/D4EN01165A","DOIUrl":"10.1039/D4EN01165A","url":null,"abstract":"<p >The sulphidation of metal-based engineered nanoparticles (ENPs) presents a promising strategy to alleviate their ecotoxicity, particularly for ZnO ENPs used in plant growth enhancement. However, little is known about the interactions of sulphidized ENPs with plants, including their ionome. The key properties of ENPs that drive plant growth improvement can be significantly impacted by sulphidation. This study investigated the response of Zn-deficient barley to pristine (nZnO) and sulphidized ZnO ENPs (sulph-nZnO) at 0.5 mg<small><sub>Zn</sub></small> L<small><sup>−1</sup></small> under hydroponic conditions. The experimental approach evaluated plant biomass, elemental composition, and gene expression related to metal acquisition and homeostasis. Key findings revealed that Zn treatment of Zn-deficient plants showed higher Zn loading than the plants grown with the Zn source by 43–117%, and Zn distribution was primarily concentrated in shoots, in which the Zn level was as follows: nZnO &lt; sulph-nZnO &lt; ZnSO<small><sub>4</sub></small>. ENPs caused a comparable accumulation pattern of other metals (Fe, Mn, K, Ca) in barley shoots after 7 days, and their content was higher than ZnSO<small><sub>4</sub></small> treatment. The transcript levels of most of the analyzed ZIP genes were similar regardless of the Zn compound treatments. In contrast, the gene expression related to vacuolar Zn sequestration and antioxidant mechanisms exhibited variability in the Zn-treated plants. In turn, the expression patterns of genes encoding Zn sequestration and antioxidant enzymes in barley shoots and roots did not directly correlate with total Zn content in plant tissues. However, the distinct transcriptional response may be associated with the ratios of different metals present. Although the spectroscopic and transcriptional profiles were generally consistent across ENP treatments, sulph-nZnO exhibited enhanced Zn uptake and elevated expression of <em>ZIP1</em>, a zinc-responsive gene involved in zinc efficiency. This suggests its potential as an innovative approach to improving plant elemental nutrition.</p>","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":" 7","pages":" 3699-3713"},"PeriodicalIF":5.8,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/en/d4en01165a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144177317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Zn3(PO4)2 shell effects on Zn uptake and cellular distribution of root applied ZnO NPs† Zn3(PO4)2壳对ZnO NPs根系锌吸收和细胞分布的影响
IF 5.8 2区 环境科学与生态学
Environmental Science: Nano Pub Date : 2025-05-29 DOI: 10.1039/D5EN00217F
Sandra Rodrigues, Astrid Avellan, Hiram Castillo-Michel, Matheus C. R. Miranda, Diana Salvador, Aude Calas, Gregory V. Lowry and Sónia M. Rodrigues
{"title":"Zn3(PO4)2 shell effects on Zn uptake and cellular distribution of root applied ZnO NPs†","authors":"Sandra Rodrigues, Astrid Avellan, Hiram Castillo-Michel, Matheus C. R. Miranda, Diana Salvador, Aude Calas, Gregory V. Lowry and Sónia M. Rodrigues","doi":"10.1039/D5EN00217F","DOIUrl":"10.1039/D5EN00217F","url":null,"abstract":"<p >Touted benefits of nanoparticle-based fertilizers include enhancing crop nutrition by fortifying fruits or grains with nutrient metals and reducing environmental impacts of fertilizer use. However, the properties of the nanoparticles (NPs) and application routes required to achieve these benefits are not yet established. This study examined how a Zn-phosphate shell on ZnO NPs (ZnO_Ph NPs) affected root uptake, cellular distribution, transformation, and translocation of Zn in pepper plants (<em>Capsicum annuum</em>), and compared the efficacy of root- to foliarly-applied NPs. Pepper plants roots were exposed to ZnO NPs (26 ± 8 nm), ZnO_Ph NPs (48 ± 12 nm), or ionic Zn. After 6 weeks, 30–37% of root-applied Zn was absorbed, with 6.0–7.2% (2.4–2.9 μg) reaching the fruits. ZnO_Ph NPs resulted in lower total Zn uptake, but higher mobility into the root vasculature and stem epidermis, likely due to P–Zn co-delivery modulating translocation mechanisms. Foliar application of these NPs led to lower Zn uptake (2.4% for ZnO_Ph NPs; 0.5% for ZnO NPs) compared to root application. However, a greater proportion of the Zn that was taken up for foliar-applied ZnO_Ph NP translocated to the fruits (27%) compared to root application (10%). Root and foliar applications also led to contrasting Zn speciation in the stem vasculature. Foliar-applied Zn formed only carboxyl and phytate-like complexes, while root-applied Zn also formed Zn–S–R complexes, indicating distinct Zn transport and storage responses, possibly explaining the higher relative mobility to the fruits when foliar-applied. These findings demonstrate that Zn uptake efficiency and speciation depend on both application method and nanoparticle formulation. They also suggest that multi-nutrient NPs can fortify foods, potentially offering a new strategy for improving plant nutrition.</p>","PeriodicalId":73,"journal":{"name":"Environmental Science: Nano","volume":" 7","pages":" 3639-3652"},"PeriodicalIF":5.8,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/en/d5en00217f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144165513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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