Springer最新文献_第3页

Highly sensitive detection and mechanism study of tetracycline in water by CuFeO2/NiCo-LDH heterojunction electrochemical sensor CuFeO2/NiCo-LDH异质结电化学传感器对水中四环素的高灵敏度检测及机理研究

IF 5.3 2区化学

Microchimica Acta Pub Date : 2025-09-06 DOI: 10.1007/s00604-025-07508-z

Aijin Xiao, Meng Li, Yiluo Hu, Wei Zhang, Huiping Bai, Xuejun Pan, Fengzhi Jiang

{"title":"Highly sensitive detection and mechanism study of tetracycline in water by CuFeO2/NiCo-LDH heterojunction electrochemical sensor","authors":"Aijin Xiao, Meng Li, Yiluo Hu, Wei Zhang, Huiping Bai, Xuejun Pan, Fengzhi Jiang","doi":"10.1007/s00604-025-07508-z","DOIUrl":"10.1007/s00604-025-07508-z","url":null,"abstract":"<div><p>A CuFeO<sub>2</sub>/NiCo-LDH heterojunction electrochemical sensor (LDH: layered double hydroxide) was developed for the sensitive detection of tetracycline (TC). The sensor was constructed by integrating ZIF-67-derived nanocage NiCo-LDH on nickel foam with CuFeO<sub>2</sub>, forming a p-n heterojunction that enhanced electron transfer and TC adsorption. The sensor exhibited bilinear detection ranges (0.00594 ~ 1 and 1 ~ 25 μM) and a low detection limit of 1.98 nM. Recoveries in real water samples ranged from 92.0 to 109.0%, with relative standard deviations not exceeding 4.5%. In situ Raman spectroscopy and density functional theory calculations confirmed the involvement of multiple redox pairs (Ni<sup>3+</sup>/Ni<sup>2+</sup>, Co<sup>3+</sup>/Co<sup>2+</sup>, Fe<sup>3+</sup>/Fe<sup>2+</sup> and Cu<sup>2+</sup>/Cu<sup>+</sup>) and strong interfacial adsorption energy. This sensor presents a practical and efficient approach for onsite TC monitoring.</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 10","pages":""},"PeriodicalIF":5.3,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145005559","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

Heterologous Expression, Purification, and Characterization of a High-Temperature Requirement A (HtrA) Protease Homologue from Leptospira. 钩端螺旋体高温要求a （HtrA）蛋白酶同源物的异种表达、纯化和鉴定。

IF 3.3 4区生物学

Applied Biochemistry and Biotechnology Pub Date : 2025-09-06 DOI: 10.1007/s12010-025-05368-0

Preeti Kumari, Garima Singh, Samarendra K Singh, Padikara K Satheeshkumar

{"title":"Heterologous Expression, Purification, and Characterization of a High-Temperature Requirement A (HtrA) Protease Homologue from Leptospira.","authors":"Preeti Kumari, Garima Singh, Samarendra K Singh, Padikara K Satheeshkumar","doi":"10.1007/s12010-025-05368-0","DOIUrl":"https://doi.org/10.1007/s12010-025-05368-0","url":null,"abstract":"<p><p>Leptospirosis is a zoonotic disease affecting humans in the tropical and temperate regions. Considerably high mortality rate (60 per 1000 adult) and associated morbidity necessitate the need for efficient diagnostic and therapeutic approaches for this disease. Proteins that play crucial roles in the invasion/pathogenesis are potential candidates for the diagnosis/therapeutics. High temperature requirement A (HtrA) is a protein expressed by many pathogenic bacteria, important for their virulence and survival. In this study, we have amplified, cloned, and expressed one of the HtrA homologues (HtrA1) from Leptospira. The expressed recombinant HtrA was purified using Ni-NTA chromatography. Physicochemical characterization of the enzyme using azo-casein substrate showed the maximum activity at a temperature 42 °C and pH 7. While Mn<sup>2+</sup> showed significant positive effect, all the other tested metals inhibited the enzymatic activity, sometimes up to 97% as in the case of Cu<sup>2+</sup>. All the protease inhibitors inhibited the enzymatic activity with PMSF having maximum efficiency. The host cells expressing HtrA showed growth inhibition in a time-bound manner. Docking analysis identified the crucial amino acids involved in the interaction with cell junction proteins like E-cadherin, occludin, claudin-8, and desmoglein-2. Treating adherent mammalian cells with the recombinant protein showed the disruption of cell adherence, and the western analysis of the protein samples collected from the same experiment indicated the cell junction protein cleavage when probed with anti-E-cadherin antibody.</p>","PeriodicalId":465,"journal":{"name":"Applied Biochemistry and Biotechnology","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145005716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Filamentous Microalgae Screening for Carotenoid and Lipid Production: A Promising Candidate with High Ammonium Tolerance for Wastewater Treatment. 丝状微藻筛选类胡萝卜素和脂质生产：具有高铵耐受性的废水处理候选者。

IF 3.3 4区生物学

Applied Biochemistry and Biotechnology Pub Date : 2025-09-06 DOI: 10.1007/s12010-025-05373-3

Yanyan Wang, Yu Peng, Huan Zhu, Wenjun Zhou, Yonghong Bi, Lin Chen, Tianzhong Liu

{"title":"Filamentous Microalgae Screening for Carotenoid and Lipid Production: A Promising Candidate with High Ammonium Tolerance for Wastewater Treatment.","authors":"Yanyan Wang, Yu Peng, Huan Zhu, Wenjun Zhou, Yonghong Bi, Lin Chen, Tianzhong Liu","doi":"10.1007/s12010-025-05373-3","DOIUrl":"https://doi.org/10.1007/s12010-025-05373-3","url":null,"abstract":"<p><p>High-ammonium wastewater can be simultaneously remediated and valorized through phototrophic cultivation of stress-resilient microalgae. This study evaluated the growth performance of 16 microalgae strains (specific growth rate μ = 0.108-0.217 day<sup>-1</sup>) from different terrestrial habitats, recognizing that there is a high diversity of terrestrial microalgae, which could harbor species with unique metabolites and properties, among which Tribonema arborum HJX, Cephaleuros virescens LST0102, and Cephaleuros virescens 42.85 exhibited high biomass productivity, reaching up to 190.6 mg L<sup>-1</sup> day<sup>-1</sup>. Tribonema arborum HJX demonstrated the highest production of lipids and carotenoid, with a total of 46.9 and 2.51 mg L<sup>-1</sup> day<sup>-1</sup>, respectively. The tolerance of these strains to ammonium and low pH, along with their performance in a 10-L panel PBR, was then assessed. The results revealed that filamentous algae isolated from terrestrial habitats have significant potential for the co-production of lipids and carotenoids, as well as robust growth capabilities under high-ammonium and low-pH environmental stress. This study highlights the potential of terrestrial filamentous algae in co-producing high-value chemicals with high-ammonium wastewater.</p>","PeriodicalId":465,"journal":{"name":"Applied Biochemistry and Biotechnology","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145005763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Nanostructured Benzoic Acid-Chitosan Nanogel Encapsulating a Synergistic Blend of Seven Essential Oils for Precision Pharmacological Delivery. 纳米结构苯甲酸-壳聚糖纳米凝胶包封7种精油的协同混合物，用于精确的药物递送。

IF 3.3 4区生物学

Applied Biochemistry and Biotechnology Pub Date : 2025-09-06 DOI: 10.1007/s12010-025-05381-3

Neha Sharma, Zahid Nabi Sheikh, Sanjay Guleria, Parshant Bakshi, Alanoud T Alfagham, Wasmiah Saud Alotaibi, Saud Alamri, Kamran Ashraf

{"title":"Nanostructured Benzoic Acid-Chitosan Nanogel Encapsulating a Synergistic Blend of Seven Essential Oils for Precision Pharmacological Delivery.","authors":"Neha Sharma, Zahid Nabi Sheikh, Sanjay Guleria, Parshant Bakshi, Alanoud T Alfagham, Wasmiah Saud Alotaibi, Saud Alamri, Kamran Ashraf","doi":"10.1007/s12010-025-05381-3","DOIUrl":"https://doi.org/10.1007/s12010-025-05381-3","url":null,"abstract":"<p><p>To develop and characterize a chemically modified chitosan-benzoic acid (CS-BA) nanogel for enhanced encapsulation, stability, and controlled release of essential oils with improved antimicrobial and antioxidant properties, the CS-BA nanogel was synthesized via carbodiimide-mediated coupling (EDC) of chitosan with benzoic acid. The nanogel was characterized using scanning electron microscopy (SEM) for morphology and Fourier transform infrared (FTIR) spectroscopy for chemical bonding analysis. The encapsulation efficiency of essential oils-Pinus roxburghii (PREO), Pinus wallichiana (PWEO), Cedrus deodara (CDEO), Thuja orientalis (TOEO), Cymbopogon citratus (CCEO), Cymbopogon khasianus (CKEO), and Mentha arvensis (MAEO) was evaluated, and in vitro release studies were conducted over 36 h. The CS-BA nanogel formed uniform spherical nanostructures (~ 1 µm diameter). FTIR confirmed successful covalent coupling via amide linkages. The encapsulation efficiency of the essential oils ranged from 79.70 ± 0.21% to 96.52 ± 0.14%. The nanogel provided sustained and controlled release of essential oils, reducing volatility and enhancing stability. The encapsulated oils exhibited significantly higher antimicrobial and antioxidant activities, maintaining prolonged functional efficacy at lower concentrations. The CS-BA nanogel serves as an efficient delivery system for essential oils, addressing stability and bioavailability challenges. This system holds promise for applications in food preservation, pharmaceuticals, and cosmeceuticals, providing a sustainable approach to enhance the functional properties of bioactive compounds.</p>","PeriodicalId":465,"journal":{"name":"Applied Biochemistry and Biotechnology","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145005790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Physics-informed modeling and deep learning-driven optimization of GO–CNT hybrid nanocomposites-reinforced car hood doors under nonlinear dynamic loading 非线性动态载荷下氧化石墨烯-碳纳米管混合纳米复合材料增强汽车引擎盖车门的物理建模与深度学习优化

IF 2.9 3区物理与天体物理

The European Physical Journal Plus Pub Date : 2025-09-06 DOI: 10.1140/epjp/s13360-025-06704-3

QinBao Huang, Guolong Zheng, Jie Liu, Belgacem Bouallegue

{"title":"Physics-informed modeling and deep learning-driven optimization of GO–CNT hybrid nanocomposites-reinforced car hood doors under nonlinear dynamic loading","authors":"QinBao Huang, Guolong Zheng, Jie Liu, Belgacem Bouallegue","doi":"10.1140/epjp/s13360-025-06704-3","DOIUrl":"10.1140/epjp/s13360-025-06704-3","url":null,"abstract":"<div><p>This work presents a comprehensive nonlinear dynamic analysis of moderately thick car hood doors reinforced with graphene oxide–carbon nanotube (GO–CNT) as the hybrid nanocomposites. The structural configuration is modeled as a doubly car hood door, and geometric nonlinearities are captured using the sinusoidal shear deformation theory (SSDT) integrated with von Kármán kinematics. The governing nonlinear partial differential equations are systematically derived via Airy’s stress function and discretized using a coupled Galerkin scheme. A time-domain solution is achieved through a fourth-order Runge–Kutta method. To address computational challenges and facilitate real-time performance prediction, a deep neural network (DNN) surrogate model is developed. The predictive accuracy and efficiency of various optimizers, including SGDM, RMSProp, and Adam, are benchmarked, with the Adam algorithm achieving optimal generalization for capturing complex nonlinear behavior. In this work, while the training time for the DNN models can vary depending on the architecture and dataset size (typically ranging from minutes to hours), once trained, the DNNs provide significant speed-ups during prediction, ranging from <span>(sim 113times text{to }sim 526times)</span> faster than traditional numerical simulations. The results highlight the significant enhancement in dynamic stability and energy absorption capacity due to the synergistic reinforcement effects of GO and CNTs. The integration of nanomechanics, nonlinear modeling, and machine learning offers a novel and efficient framework for optimizing advanced automotive structures subjected to impact and vibration, contributing to physics-based lightweight and high-performance material design.</p></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"140 9","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998393","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

Dissociative electron attachment to NaCN 与NaCN的解离电子附着

IF 1.5 4区物理与天体物理

The European Physical Journal D Pub Date : 2025-09-06 DOI: 10.1140/epjd/s10053-025-01048-0

Berna Arslanoglu, Åsa Larson, Ann E. Orel

引用次数: 0

Spectrally combining beam degradation caused by DLA defects: modeling and analysis DLA缺陷引起的光谱组合波束退化：建模与分析

IF 2 3区物理与天体物理

Applied Physics B Pub Date : 2025-09-06 DOI: 10.1007/s00340-025-08546-4

Guiqi Zhong, Peng Feng, Danni Li, Ling Liu, Zhen Wu, Mingxia Feng, Kai Jia, Zheqiang Zhong

{"title":"Spectrally combining beam degradation caused by DLA defects: modeling and analysis","authors":"Guiqi Zhong, Peng Feng, Danni Li, Ling Liu, Zhen Wu, Mingxia Feng, Kai Jia, Zheqiang Zhong","doi":"10.1007/s00340-025-08546-4","DOIUrl":"10.1007/s00340-025-08546-4","url":null,"abstract":"<div><p>The paper investigates the degradation of beam quality in spectral beam combining (SBC) systems with dual-gratings caused by defects in diode laser arrays (DLAs), focusing on the combined effects of beam linewidth, divergence angle, and beam deflection. A comprehensive model is developed to analyze how these defects affect the wavelength-locking mechanism and beam propagation, thereby degrading the output beam characteristics. The results reveal that the dual-grating configuration effectively mitigates angular broadening induced by linewidth dispersion. A linewidth of 1 nm results in a mere 8% reduction in the peak intensity of the combined beam, concomitantly leading to a 0.5 increase in the β factor. Although beam divergence exacerbates the degradation of beam quality, beam deflection is the dominant factor. A deflection angle of 3 mrad results in a 38% reduction in peak intensity and a 2.6 increase in the β factor, underscoring the necessity of controlling beam deflection. We hope this work provides critical insights into the interplay between DLA imperfections and SBC performance, offering a theoretical foundation for optimizing high-power, near-diffraction-limited beam combining systems.</p></div>","PeriodicalId":474,"journal":{"name":"Applied Physics B","volume":"131 10","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998563","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

Magnetic Properties of Square–Hexagon-Octagon Bilayer Structure with RKKY Interactions: Monte Carlo Simulations 具有RKKY相互作用的方形-六边形-八边形双层结构的磁性：蒙特卡罗模拟

IF 1.7 4区物理与天体物理

Journal of Superconductivity and Novel Magnetism Pub Date : 2025-09-06 DOI: 10.1007/s10948-025-07040-4

I. Elhnaki, R. Masrour, T. Sahdane

引用次数: 0

In-situ activated pore structure engineering via Ca(AC)2 template towards high areal capacity for wood-derived thick carbon electrode in lithium-ion batteries 基于Ca(AC)2模板的高面积容量木质厚碳电极原位活化孔结构工程

IF 3 2区农林科学

Wood Science and Technology Pub Date : 2025-09-06 DOI: 10.1007/s00226-025-01701-2

Yifan Wang, Jingjiang Yang, Yanbo Liu, Gaigai Duan, Ruizhi Yu, Xiaoshuai Han, Jingquan Han, Chunmei Zhang, Shuijian He, Shaohua Jiang

{"title":"In-situ activated pore structure engineering via Ca(AC)2 template towards high areal capacity for wood-derived thick carbon electrode in lithium-ion batteries","authors":"Yifan Wang, Jingjiang Yang, Yanbo Liu, Gaigai Duan, Ruizhi Yu, Xiaoshuai Han, Jingquan Han, Chunmei Zhang, Shuijian He, Shaohua Jiang","doi":"10.1007/s00226-025-01701-2","DOIUrl":"10.1007/s00226-025-01701-2","url":null,"abstract":"<div><p>Natural woods are increasingly recognized as promising green candidates for high areal capacity wood-based hard carbon thick electrodes (WHCTEs). Their unique 3-D transport network features abundant straight, open channels aligned along the longitudinal direction, which has attracted significant attention in recent years. However, direct carbonization yields underdeveloped pore structures, restricting electrochemical active surfaces and lithium storage performance. To address this issue, calcium acetate (Ca(AC)<sub>2</sub>) was employed as a templating agent to engineer hierarchical porous architectures. Systematic studies reveal adjustable Ca(AC)<sub>2</sub> dosage effectively modulates pore structures, with BET analysis confirming meso-/macropore distributions (2–130 nm) in all samples. This optimized porosity reduces electrode impedance and enhances lithium storage, delivering record areal capacities of 6.81/3.89 mAh cm<sup>-2</sup> at 0.1/1.0 mA cm<sup>-2</sup>, which is 190%/110% higher than commercial graphite electrode (3.5–3.6 mAh cm<sup>-2</sup>. Kinetic analysis further identifies an “adsorption-insertion” dual lithium storage mechanism. The widely distributed porosity significantly contributes to performance improvements, demonstrating a viable strategy for developing sustainable WHCTEs. These findings provide critical insights for designing thick carbon electrodes in alkali-metal-ion batteries.</p></div>","PeriodicalId":810,"journal":{"name":"Wood Science and Technology","volume":"59 6","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145005533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wigner Path Integral Representation of the Density of States. Monte Carlo Simulation of Plasma Media. 态密度的维格纳路径积分表示。等离子体介质的蒙特卡罗模拟。

IF 1.2 3区物理与天体物理

Journal of Statistical Physics Pub Date : 2025-09-06 DOI: 10.1007/s10955-025-03508-8

Vladimir Filinov, Pavel Levashov, Alexander Larkin

{"title":"Wigner Path Integral Representation of the Density of States. Monte Carlo Simulation of Plasma Media.","authors":"Vladimir Filinov, Pavel Levashov, Alexander Larkin","doi":"10.1007/s10955-025-03508-8","DOIUrl":"10.1007/s10955-025-03508-8","url":null,"abstract":"<div><p>A new phase space path integral representation of quantum density of states (DOS) was derived for a strongly coupled plasma media representing hydrogen plasma and two-component Coulomb system with uniformly distributed in space uncorrelated positive charges (“protons”) simulating a neutralizing background (“OCP”). A path integral Monte Carlo approach was used for the calculation of DOS, energy and momentum distribution functions as well as spin–resolved radial distribution functions (RDFs). The RDFs for electrons with the same spin projection revealed exchange–correlation cavities. For a two-component hydrogen plasma (TCP) the Coulomb attraction results in the appearance of high peaks on the proton–electron RDFs at small interparticle distances, while for the “OCP” the analogous RDFs demonstrate an unexpected significant drop arising due to a three–particle effect caused by the electron repulsion preventing for any two electrons to be in the vicinity of any uncorrelated charge. At negative plasma energy the “OCP” DOS is a fast-decaying function, while in hydrogen plasma at a temperature of the order of 1 <span>(textrm{Ry} = 0.5text {Ha}approx 13.6)</span> eV the DOS shows a well-pronounced peak related to the bound states. Quantum effects make momentum distribution functions non-maxwellian with a power-law high-momentum asymptotics (“quantum tails”) even under the condition of thermodynamic equilibrium.</p></div>","PeriodicalId":667,"journal":{"name":"Journal of Statistical Physics","volume":"192 9","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998547","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