Springer最新文献_第5页

Hierarchical Fe3O4@C@MnO2 nanozymes: bridging structural engineering to on-site biosensing of tannic acid 分层Fe3O4@C@MnO2纳米酶：连接结构工程到单宁酸的现场生物传感

IF 5.3 2区化学

Microchimica Acta Pub Date : 2025-08-16 DOI: 10.1007/s00604-025-07385-6

Jingjing Meng, Lu Han, Lu Li, Xue-bo Yin, Jing Zheng

{"title":"Hierarchical Fe3O4@C@MnO2 nanozymes: bridging structural engineering to on-site biosensing of tannic acid","authors":"Jingjing Meng, Lu Han, Lu Li, Xue-bo Yin, Jing Zheng","doi":"10.1007/s00604-025-07385-6","DOIUrl":"10.1007/s00604-025-07385-6","url":null,"abstract":"<div><p>Manganese dioxide (MnO<sub>2</sub>)-based heterogeneous catalysts have gained significant attention in nanozyme research due to their exceptional oxidase-mimicking capabilities. This work reports the rational design of MnO<sub>2</sub> functionalized magnetic carbon nanotubes (Fe<sub>3</sub>O<sub>4</sub>@C@MnO<sub>2</sub>) through a multistep synthesis strategy. The magnetic N-doped hollow carbon substrate (Fe<sub>3</sub>O<sub>4</sub>@C) was first synthesized via controlled pyrolysis of FeOOH-coated polydopamine precursors. Subsequent interfacial redox reaction with KMnO<sub>4</sub> enabled the in situ deposition of ultrathin MnO<sub>2</sub> nanosheets on the nanotube substrate, forming a triple-component coaxial architecture. This hollow structure not only facilitates dense MnO<sub>2</sub> deposition but also maintains robust magnetic responsiveness. The obtained Fe<sub>3</sub>O<sub>4</sub>@C@MnO<sub>2</sub> exhibits remarkable enzyme-mimetic capability, catalyzing TMB chromogenic conversion with 0.92-fold enhanced catalytic performance relative to pristine MnO<sub>2</sub>. Systematic mechanistic studies reveal that tannic acid (TA) competitively inhibits ·OH radical generation via MnO<sub>2</sub>-TA complexation, while the carbon interlayer enhances electron transfer efficiency. Owing to the superior enzyme-mimetic performance of Fe<sub>3</sub>O<sub>4</sub>@C@MnO<sub>2</sub> and their inhibition effect by TA, a sensitive colorimetric biosensing assay was fabricated, achieving a TA detection limit of 0.029 μM with a 0.096–4.82 μM linear concentration range. This work exemplifies the synergy of structural engineering and component optimization in designing multifunctional nanozymes, showing potential applications in food quality monitoring, environmental analysis, and point-of-care diagnostics.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":705,"journal":{"name":"Microchimica Acta","volume":"192 9","pages":""},"PeriodicalIF":5.3,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fabrication of flexibility-rigidity alternately assembled solid-state luminescence covalent organic frameworks: application to rifampicin antibiotics detection and latent fingerprint recognition 柔性-刚性交替组装固态发光共价有机骨架的制备：在利福平抗生素检测和潜在指纹识别中的应用

IF 5.3 2区化学

Microchimica Acta Pub Date : 2025-08-16 DOI: 10.1007/s00604-025-07399-0

Qiuyi Liu, Lingling Li, Min Wang, Mingyue Wang, Yue Lan, Fan Li, Jiaqi Hu, Yuqiang Xiao, Xiurong Guo, Dandan Wang, Die Gao

{"title":"Fabrication of flexibility-rigidity alternately assembled solid-state luminescence covalent organic frameworks: application to rifampicin antibiotics detection and latent fingerprint recognition","authors":"Qiuyi Liu, Lingling Li, Min Wang, Mingyue Wang, Yue Lan, Fan Li, Jiaqi Hu, Yuqiang Xiao, Xiurong Guo, Dandan Wang, Die Gao","doi":"10.1007/s00604-025-07399-0","DOIUrl":"10.1007/s00604-025-07399-0","url":null,"abstract":"<div><p>To enhance the fluorescence properties of covalent organic frameworks (COFs) for broader applications, we introduce flexibility-rigidity alternately assembled red fluorescent COFs, named COF-MA. Its uniquely wide layer spacing (7.054 Å) significantly reduces π-π stacking interactions, suppressing fluorescence self-quenching and boosting solid-state emission. With long excitation and emission wavelengths, COF-MA exhibits minimal background interference, enabling highly sensitive detection of rifampicin (RFP) and rifapentine (RPT) in complex biological samples; the detection limits for both are 6.7 ng·mL<sup>−1</sup>. Combining experimental studies and computational simulations, we elucidated the fluorescence quenching mechanism. Furthermore, COF-MA-based fluorescent powder enabled rapid, high-contrast visualization of latent fingerprints on eight different substrates. This work not only proposes a novel structure-tuning strategy to improve COF fluorescence, but also delivers a stable probe for antibiotic detection and a versatile forensic tool, significantly expanding the practical scope of fluorescent COFs.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":705,"journal":{"name":"Microchimica Acta","volume":"192 9","pages":""},"PeriodicalIF":5.3,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Huperzine A: a natural acetylcholinesterase inhibitor with multifunctional neuroprotective effects 石杉碱A：天然乙酰胆碱酯酶抑制剂，具有多功能神经保护作用

IF 2.6

Beni-Suef University Journal of Basic and Applied Sciences Pub Date : 2025-08-16 DOI: 10.1186/s43088-025-00675-1

Suvaiv, Kuldeep Singh, Syed Misbahul Hasan, Arun Kumar, Abdullah khan, Mo. Shahanawaz, Syed Mehdi Hasan Zaidi, Kausal Verma

{"title":"Huperzine A: a natural acetylcholinesterase inhibitor with multifunctional neuroprotective effects","authors":"Suvaiv, Kuldeep Singh, Syed Misbahul Hasan, Arun Kumar, Abdullah khan, Mo. Shahanawaz, Syed Mehdi Hasan Zaidi, Kausal Verma","doi":"10.1186/s43088-025-00675-1","DOIUrl":"10.1186/s43088-025-00675-1","url":null,"abstract":"<div><h3>Background</h3><p>Huperzine A, a naturally derived compound, has garnered interest for its capacity to inhibit cholinesterase with multifaceted neuroprotective effects and is obtained from Huperzia serrata (Chinese club moss plant). This review highlights its pharmacological potential in the treatment of neurodegenerative disorders, particularly Alzheimer’s disease (AD). Huperzine A was used in various neurological conditions in traditional Chinese treatments.</p><h3>Findings</h3><p>Acetylcholinesterase is responsible for the breakdown of acetylcholine, a neurotransmitter critical for cognitive functions such as memory, learning, and attention. Huperzine A exhibits neuroprotective effects by preserving acetylcholine levels, and also offers antioxidant and anti-inflammatory benefits. These pharmacological actions suggest a potential role in modifying disease progression in AD and vascular dementia (VD). Although preclinical and clinical studies have demonstrated promising cognitive benefits, discrepancies in outcomes still exist. While considered safe at therapeutic dosages, excessive intake may lead to adverse effects, e.g., nausea, diarrhea, and muscle cramps.</p><h3>Conclusion</h3><p>Research on its effectiveness in various neurological conditions is ongoing, and its use should be approached with caution and professional guidance.</p></div>","PeriodicalId":481,"journal":{"name":"Beni-Suef University Journal of Basic and Applied Sciences","volume":"14 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://bjbas.springeropen.com/counter/pdf/10.1186/s43088-025-00675-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Utility of Fish Population Monitoring and Forecast Trigger Development for Designing Adaptive Aquatic Monitoring Plans for Large Industrial Developments. 鱼类种群监测和预测触发器开发在设计大型工业发展适应性水生监测计划中的应用。

IF 3 3区环境科学与生态学

Environmental Management Pub Date : 2025-08-16 DOI: 10.1007/s00267-025-02260-9

Carolyn Jm Brown, Tim J Arciszewski, R Allen Curry, D Scott Smith, Kelly R Munkittrick

{"title":"The Utility of Fish Population Monitoring and Forecast Trigger Development for Designing Adaptive Aquatic Monitoring Plans for Large Industrial Developments.","authors":"Carolyn Jm Brown, Tim J Arciszewski, R Allen Curry, D Scott Smith, Kelly R Munkittrick","doi":"10.1007/s00267-025-02260-9","DOIUrl":"https://doi.org/10.1007/s00267-025-02260-9","url":null,"abstract":"<p><p>Most Environmental Impact Assessments (EIAs) fail to generate effective monitoring and forecast triggers because there is a lack of appropriate baseline data and forecasting, especially for biotic endpoints. Herein, we provide an example of how to develop monitoring and forecast triggers with biotic data, specifically fish populations, to assess impacts of a planned refurbishment of the Mactaquac Hydroelectric Generating Station, a large hydroelectric facility. We recommend strategies for developing interim monitoring triggers until sufficient biological data is collected, including default critical effect sizes or data percentiles when there are only a few years of data. When there is sufficient data the monitoring trigger can be based on the predicted normal range, i.e., 2x standard deviation of the means. We generated forecast triggers with the general linear model, partial least squares regression, and elastic net regression. We demonstrate that interannual variability of fish population characteristics sampled consecutively for 4 years was insufficient for meaningful monitoring and forecast trigger development. Collecting sufficient baseline data for new projects in an undeveloped area will be challenging due to costs and regulatory and economic time frames as current practice is generally 1 or 2 years. Changes to existing projects, such as in this study, or new projects near existing development should have existing baseline data - if forethought is given as to effective endpoints. The alignment of monitoring requirements between developments within a watershed will improve monitoring, modelling, and prediction over the long term and for consideration of future developments.</p>","PeriodicalId":543,"journal":{"name":"Environmental Management","volume":" ","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858781","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

Corrosion characteristics of low-carbon cast steel ZG230-450 in chloride-sulfate atmospheric environment. 低碳铸钢ZG230-450在氯化物-硫酸盐大气环境中的腐蚀特性

IF 5.8 3区环境科学与生态学

Environmental Science and Pollution Research Pub Date : 2025-08-16 DOI: 10.1007/s11356-025-36847-w

Xuan Zheng, Yanping Zhao, Hongxin Yang, Baorong Liu, Chi Zhang

{"title":"Corrosion characteristics of low-carbon cast steel ZG230-450 in chloride-sulfate atmospheric environment.","authors":"Xuan Zheng, Yanping Zhao, Hongxin Yang, Baorong Liu, Chi Zhang","doi":"10.1007/s11356-025-36847-w","DOIUrl":"https://doi.org/10.1007/s11356-025-36847-w","url":null,"abstract":"<p><p>In the present paper, the corrosion behavior of ZG230-450 in chloride-sulfate atmospheric environment was studied, comparing with ordinary low-carbon steel Q235. Long-term and short-term corrosion tests were conducted, the corrosion products of the materials were observed and tested by scanning electron microscope and X-ray diffraction, and the corrosion rate and pitting corrosion behavior of the materials were studied by electrochemical test. The test results show that (1) the corrosion products of Q235 are mainly composed of γ-Fe<sub>2</sub>O<sub>3</sub>, γ-FeOOH, and α-FeOOH, while corrosion products of ZG230-450 are mainly composed of Fe<sub>3</sub>O<sub>4</sub>, γ-FeOOH, and α-FeOOH; (2) in the early stage of corrosion, the corrosion rate of ZG230-450 is higher than that of Q235. When the concentrations of Na<sub>2</sub>SO<sub>4</sub> and NaCl solutions are both 3.5%, the self-corrosion potential value and polarization resistance of ZG230-450 are - 0.706 V and 324.75Ω, while the Q235 are - 0.687 V and 1080.0Ω, respectively. (3) ZG230-450 has better pitting corrosion resistance than Q235 in the same corrosive environment. When the Na<sub>2</sub>SO<sub>4</sub> and NaCl solution concentrations are both 3.5%, the pitting potentials of ZG230-450 and Q235 are - 0.578 V and - 0.558 V.</p>","PeriodicalId":545,"journal":{"name":"Environmental Science and Pollution Research","volume":" ","pages":""},"PeriodicalIF":5.8,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858784","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

Thermomechanical properties of R12-graphene nanosheet using molecular dynamics simulation 利用分子动力学模拟r12 -石墨烯纳米片的热力学性质

IF 2.9 3区物理与天体物理

The European Physical Journal Plus Pub Date : 2025-08-16 DOI: 10.1140/epjp/s13360-025-06661-x

Haosen Wang, Wentao Xu, Xiaoheng Han

{"title":"Thermomechanical properties of R12-graphene nanosheet using molecular dynamics simulation","authors":"Haosen Wang, Wentao Xu, Xiaoheng Han","doi":"10.1140/epjp/s13360-025-06661-x","DOIUrl":"10.1140/epjp/s13360-025-06661-x","url":null,"abstract":"<div><p>In this study, the thermomechanical properties of a two-dimensional novel allotrope, the R12-graphene nanosheet, are characterized via nonequilibrium molecular dynamics simulations performed in LAMMPS, employing the AIREBO-M potential to capture both covalent and van der Waals interactions. Key properties, such as Young’s modulus, toughness, and thermal conductivity (TC) coefficient, are examined. The influence of critical parameters, including side lengths, temperature, vacancy defects, and the number of layers, on these thermomechanical properties is systematically analyzed. Based on stress–strain curve analysis, the small variations in elastic modulus, toughness, and TC between armchair and zigzag configurations suggest that R12-graphene nanosheets exhibit nearly isotropic behavior in both mechanical and thermal properties. Toughness is the most sensitive property of R12-graphene nanosheets to dimension, temperature, defects, and layer number, while TC and elastic modulus exhibit moderate to lower sensitivity. Compared to pristine hexagonal graphene, which exhibits a Young’s modulus of ≈1 TPa and in-plane TC of 3000–5000 W m<sup>−1</sup> K<sup>−1</sup>, R12-graphene nanosheets display markedly lower elastic moduli (265–326 GPa) and TC (9.8–11.9 W m<sup>−1</sup> K<sup>−1</sup>) over the 50–150 Å size range.</p></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"140 8","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","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 water migration-induced softening on the stability of soil-rock slopes with irregular rock block rotation behavior 水运移软化对不规则块体旋转土-岩边坡稳定性的影响

IF 4.2 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2025-08-16 DOI: 10.1007/s10064-025-04433-6

Chuan Wen, Shunqing Liu, Guojun Cai, Zhichao Zhang, Haoqing Xu, Yuhe Sun

{"title":"Effects of water migration-induced softening on the stability of soil-rock slopes with irregular rock block rotation behavior","authors":"Chuan Wen, Shunqing Liu, Guojun Cai, Zhichao Zhang, Haoqing Xu, Yuhe Sun","doi":"10.1007/s10064-025-04433-6","DOIUrl":"10.1007/s10064-025-04433-6","url":null,"abstract":"<div><p>To assess the effects of water-induced softening on slope stability, soil-rock slopes with different major axis inclinations of irregular rock blocks were generated using a stochastic method based on functional distribution. More than 4200 2D stability analyses were performed using strength reduction limit analysis method. For each kind of water-induced softening condition and major axis inclination, the different rock block arrangements had been made. The safety factor and shear dissipation results indicate that the rock block’s major axis inclination have a significant impact on slope stability, even as soil strength continuously decreases. Under the different softening conditions caused by water migration, slopes are most susceptible to failure when the soil throughout the whole soil-rock mixture is softened. In particular, when the soil at the base of the soil-rock mixture softened, a shear sliding zone develop from the slope toe along the contact surface. Furthermore, as soil strength continues to degrade, both an increased softening thickness and a higher volumetric rock block proportion accelerate the rate of slope stability reduction. The impact of increasing softening thickness on slope stability is primarily governed by the soil above the contact surface. It is also noteworthy noting that in slopes with a high volumetric rock block proportion, repeated cycles of water-induced softening leads to a significant loss of soil particles from the structural skeleton. This results in a more rapid decline in slope stability compared to slopes with a lower volumetric rock block proportion.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"84 9","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of direct-indirect emissions of conventional and advanced technologies in European aviation. 欧洲航空业传统技术与先进技术的直接间接排放比较。

IF 5.8 3区环境科学与生态学

Environmental Science and Pollution Research Pub Date : 2025-08-16 DOI: 10.1007/s11356-025-36858-7

Rizwan Shoukat

{"title":"Comparison of direct-indirect emissions of conventional and advanced technologies in European aviation.","authors":"Rizwan Shoukat","doi":"10.1007/s11356-025-36858-7","DOIUrl":"https://doi.org/10.1007/s11356-025-36858-7","url":null,"abstract":"<p><p>This research aims to investigate and compare new and existing technologies and their impact on overall emissions during climb, cruise, and descent (CCD). The data is obtained from the International Civil Aviation Organization (ICAO) and the European Environmental Agency related to fuel flow rates, types of aircraft and engines, and emission factors. Based on the data obtained, the nitrogen oxide (NO<sub>x</sub>), carbon monoxide (CO), and hydrocarbon (HC) emissions of each aircraft are carefully analyzed to estimate accurately their impact on the environment. The developed fuel flow model considers various factors to estimate the fuel consumption of selected aircraft and provide a comprehensive understanding of the environmental influence of each aircraft. The findings of the study reveal that in scope 1, traditional aircraft generate 27% higher emissions than biofuel-powered (100% blend with Jet-A1 fuel) aircraft, and this disparity increases to 31.4% when compared to hybrid electric aircraft. The analysis shows that electric aircraft emissions are 85.1% lower than conventional aircraft. Furthermore, it is estimated that in the majority of instances involving the chosen aircraft, the levels of NO<sub>x</sub> emissions are consistently greater in comparison to HC. Further, this study offers valuable insights to policymakers and regulators in their efforts to develop more effective emission regulations and incentives for the aviation industry, particularly concerning CCD emissions. It also provides a comparison of the top 10 European airports that are responsible for the highest emissions in Europe based on the data provided by OAG. In general, the results of this study possess the capacity to stimulate innovation and facilitate the advancement of environmentally friendly aircraft technology within Europe.</p>","PeriodicalId":545,"journal":{"name":"Environmental Science and Pollution Research","volume":" ","pages":""},"PeriodicalIF":5.8,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858782","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

Synthesis of bis(dispiro[indolinone-pyrrolidine-imidazolones]) 双吡罗[吲哚啉-吡咯烷-咪唑酮]的合成

IF 1.7 4区化学

Russian Chemical Bulletin Pub Date : 2025-08-16 DOI: 10.1007/s11172-025-4693-4

V. S. Polyakov, E. V. Pervakova, N. V. Zyk, E. K. Beloglazkina

引用次数: 0

Synthesis and investigation of antiproliferative activity of novel analogs of combretastatin A4 of isoxazole series 异恶唑系列康布他汀A4新型类似物的合成及抗增殖活性研究

IF 1.7 4区化学

Russian Chemical Bulletin Pub Date : 2025-08-16 DOI: 10.1007/s11172-025-4702-7

M. S. Kuzmina, N. E. Astakhova, D. A. Vasilenko, K. N. Sedenkova, Yu. K. Grishin, Yu. A. Gracheva, E. R. Milaeva, E. B. Averina

引用次数: 0