LANGMUIR朗缪尔
LANGMUIR(英文缩写 LANGMUIR),ISSN 0743-7463,eISSN 1520-5827,中文译名:朗缪尔 是一本学术期刊。本页汇总该期刊的最新影响因子、分区信息以及最新收录于 PubMed 的文献,帮助您快速了解期刊全貌。
发文量统计区间：2025-09-27 至 2026-09-27，按本站收录文献的发表日期统计。
期刊介绍
历年影响因子趋势
| JCR 数据年份 | 影响因子 | JCR 分区 |
|---|---|---|
| 2021 | 4.331 | Q2 |
| 2022 | 3.900 | Q2 |
| 2023 | 3.700 | Q2 |
| 2024 | 3.900 | Q2 |
| 2025 | 4.400 | Q2 |
LANGMUIR 最新收录文献
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1. Lignin-Assisted Construction of Coal-Tar-Pitch-Derived N/S Co-doped Porous Carbon for Boosted Zinc Ion Storage.
PMID:日期:2026-09-19Zinc ion capacitors (ZICs) based on a carbon cathode represent new generation energy storage system, owing to outstanding safety, economic viability, and ecological sustainability. However, carbon-based cathodes suffer from limited charge storage. Thus, it is urgent to develop advanced carbon materials with a large available specific surface area and abundant active sites to boost the storage capacity of zinc ions. Herein, the lignin-assisted K2CO3 activation strategy is reported for constructing N/S co-doped hierarchical porous carbon frameworks (PCSs) using coal tar pitch as the primary carbon precursor. The pore-forming effect of K2CO3 coupled with the skeletal support of lignin promotes pyrolytic cross-linking of the precursor to form a porous nanosheet morphology. Meanwhile, N/S co-doping effectively modulates the electronic structure and produces additional active sites on the surface of PCSs. Besides, the reversible chemisorption/desorption of Zn2+ with O-containing groups occurring on PCSs has been monitored via in situ infrared spectroscopy, which provides additional pseudocapacitance. Consequently, the constructed ZICs with the PCS4 cathode can achieve a capacity of 125.31 mAh g-1 at 0.1 A g-1 and an energy density up to 96.43 Wh kg-1.
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2. Tuning Physical and Photochemical Properties of Perovskite Oxides via B-Site Co-Substitution with Fe and Nb.
PMID:日期:2026-09-17Perovskite-structured oxides exhibit excellent performance across a range of applications; however, their widespread adoption is often constrained by wide bandgap energies and high charge recombination rates. To address these limitations, this study introduces iron (Fe) and niobium (Nb) ions into the B-site of the ABO3 lattice to construct the half-metallic double perovskites of the formula A2FeNbO6 (A = Ca, Sr, or Ba). The materials were synthesized using a facile one-step molten salt method, and their physical, photochemical, and optical properties were systematically investigated. UV-vis DRS, XPS-VB, and UPS analyses suggest that the as-prepared A2FeNbO6 compounds possess narrower band gaps compared to their single perovskite counterparts, ATiO3 (A = Ca, Sr, or Ba). Remarkably, the double perovskite materials A2FeNbO6 demonstrated exceptional photocatalytic activity for the degradation of TC under visible light illumination (λ = 420 nm). Among the synthesized compounds, Ba2FeNbO6 exhibited the highest performance, achieving a TC degradation rate of 92.0% within 40 min─significantly surpassing the rates observed for Ca2FeNbO6 and Sr2FeNbO6. Furthermore, the dominant reactive species and plausible reaction pathways involved in the TC degradation reaction over Ba2FeNbO6 were elucidated through radical quenching experiments, EPR spectroscopy, and LC-MS analysis. This work highlights the potential of A2FeNbO6 double perovskites as a novel class of efficient and stable photocatalysts for the degradation of organic pollutants.
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3. Cu Doping Activates SnS2 Basal Planes for Efficient CO2 Electroreduction to Formate.
PMID:日期:2026-09-08The electrocatalytic CO2 reduction reaction (CO2RR) to formate represents a promising pathway for CO2 utilization. However, pristine SnS2 catalysts are limited by poor selectivity, short lifetimes, and sluggish reaction kinetics. These issues are primarily correlated with the inertness of their basal planes. Inspired by density functional theory (DFT) calculations, we rationally designed a catalyst to activate these basal planes. DFT analyses, including electron localization function (ELF) and crystal orbital Hamiltonian population (COHP), reveal that the Cu-S bond possesses greater strength than the Sn-S bond. This suggests that copper can substitute tin in the SnS2 lattice, disrupt its ordered basal plane structure, and generate abundant defective sites with optimal adsorption strength for the key *OCHO intermediate. Guided by this theoretical prediction, we synthesized a Cu-doped SnS2 (Cu-SnS2) nanoflower catalyst via a room-temperature stirring process involving a CuSO4 solution and presynthesized SnS2. Comprehensive characterizations confirmed the uniform incorporation of Cu with a +1 oxidation state and a significant increase in sulfur vacancy concentration. The catalyst achieves a formate Faradaic efficiency of over 90% across a wide potential window, delivers a high current density of ∼280 mA cm-2 at -1.11 V vs RHE, and demonstrates stable operation for 60 h at 100 mA cm-2. Mechanism studies indicate that the synergistic effect of Cu doping and sulfur vacancies regulates the electronic structure of SnS2, accelerates charge transfer, suppresses the competing hydrogen evolution reaction, and alleviates tin dissolution during electrolysis. This work provides a strategy for designing high-performance CO2RR electrocatalysts through basal plane activation.
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4. Shear-Induced Evolution of Cellular Structure and Thermo-Mechanical Properties in PLA/HNC and In-situ Fibrillated PLA/PTFE Composite Foams.
PMID:日期:2026-09-08High-performance cellular biopolymeric foams require precise control of processing and filler-induced microstructure. In this study, poly(lactic acid) (PLA) composite foams with halloysite nanoclay (HNC) and polytetrafluoroethylene (PTFE) were produced via twin-screw extrusion foaming using azodicarbonamide. The effect of screw speed (20-120 rpm) on morphology, crystallization, and compressive properties was investigated. In PLA/HNC, increasing screw speed improved filler dispersion and heterogeneous nucleation, reducing cell size by ∼50-60% and yielding a maximum void fraction of ∼20.5% at 60 rpm. In contrast, PLA/PTFE exhibited complete in situ fibrillation into a three-dimensional nanofibrillar network (∼100-500 nm), whose density increased continuously with screw speed without saturation. PLA/PTFE showed over a 20-fold reduction in crystallization half-time of PLA at 130 °C (vs ∼4-fold for HNC) due to its high nucleation surface area. It also achieved superior compressive performance (∼68-70 MPa·cm3/g strength and ∼11 J/g toughness at 120 rpm), exceeding PLA/HNC by ∼50% and ∼80%, respectively, through fibril-driven reinforcement mechanisms of cell walls.
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5. Tunable Electrostatic Interactions of Lipid-Coated Quantum Dots with Biological Membranes.
PMID:日期:2026-09-08Surface functionalization of inorganic quantum dot (QD) nanoparticles is of great interest in the application of these materials toward a wide range of biological applications, where membrane interactions are critical. The use of amphiphilic lipids to functionalize the surfaces of quantum dots represents a promising alternative to produce water-soluble and membrane-active materials with facile tuning of the quantum dot's surface properties. Here, we demonstrate an experimental approach that yields lipid-coated quantum dots with highly tunable surface charges by controlling the concentration of cationic lipids during preparation. Through fluorescence-activated cell sorting assays, we show that these cationic lipid-coated quantum dots can enhance membrane interactions and increase the membrane labeling density in live HEK293 cells. We further employed coarse-grained molecular dynamics simulations to model the lipid self-assembly process using an implicit solvent force field and subsequently modeled the adsorption of lipid-coated quantum dots to model membranes. Our simulations show that we can control the effective surface charge of lipid-coated quantum dots and influence the strength of adsorption to oppositely charged lipid membranes, a process that is mediated by the release of counterions at the quantum dot-membrane interface. This work supports the future development of biocompatible and water-soluble inorganic nanoparticles with highly tunable surfaces and provides mechanistic insight into how different lipids can influence nanoparticle-membrane interactions at a molecular-scale.
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6. Morphology-Controlled Ultralow Aqueous Friction in Cationic-Anionic Mixed Surfactant Systems.
PMID:日期:2026-09-08Aqueous boundary lubrication depends critically on stable, hydrated interfacial layers, yet the role of molecular self-assembly in the tribological performance remains insufficiently understood. Here, we investigate a catanionic surfactant system, C12C3C12(SO3)2/CTAB, in which controlled variation of the gemini surfactant C12C3C12(SO3)2 molar fraction (Xg = 0.1, 0.2, 0.3) at a fixed total concentration of 2 mM drives structural transitions from spherical micelles to wormlike micelles and vesicles. Surface force balance and atomic force microscopy measurements reveal that all morphologies provide ultralow friction coefficients (10-3-10-4) via hydration lubrication but exhibit markedly different load-bearing capacities and mechanical stability. Spherical micelles provide the highest resilience and stability under pressures up to ∼70 atm; wormlike micelles display intermediate stability with partial structural damage under confinement; and vesicles yield the lowest friction (μ ≈ 10-4) but collapse at moderate pressures (15-30 atm). These findings demonstrate that aggregate morphology, controlled by stoichiometric charge neutralization, governs the balance between friction reduction and mechanical robustness, and highlight mixed surfactant self-assembly as an efficient strategy for low-concentration water-based lubricants.
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7. Integrative Infochemistry of Polyhydroxyalkanoate Films: Multimodal Data, Topological Tuning, and Cell-Surface Interfaces.
PMID:日期:2026-09-08This study investigates seeding and cultivation of C2C12 myoblast cells on poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (P3HBV) films synthesized at four polymer concentrations, yielding films with progressively increasing lateral thickness and diverse surface topographies. Cell attachment was evaluated after 24 h, alongside correlations between surface topography and cellular behavior. Surface characteristics across films at each thickness were quantified using atomic force microscopy (AFM), scanning electron microscopy (SEM), advanced topological data analysis (TDA), and threshold relief analysis. C2C12 myoblast growth was imaged via fluorescence microscopy, with quantitative metrics extracted using the Cellpose Plus toolbox. Statistical modeling revealed correlations between surface features and cell morphology. SEM imaging further corroborated pore characteristics against cell growth metrics. Results demonstrate a linear relationship between surface topography and cellular responses, underscoring the critical role of substrate morphology in modulating cell behavior, where films synthesized at high polymer concentrations (5-7% w/v) exhibit enhanced cell attachment. The 85:15 P3HBV copolymer was selected for its favorable thermomechanical properties, high biocompatibility, and cost-effectiveness for large-scale biosynthesis. Our work presents a reproducible data-driven pipeline for analyzing cell-surface interactions, combining TDA and image segmentation metrics to explore the behavior of surface morphology under varying material conditions.
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8. Cyclodextrin-Modulated Electrochemical Grafting of Graphite Surfaces with Aryldiazonium Salts.
PMID:日期:2026-09-08We report the role of cyclodextrins (CDs) in the electrochemical grafting of the basal plane of graphite with aryldiazonium salts through host-guest complexation. Three aryldiazonium ions bearing different substituents in the para position, p-adamantylbenzene diazonium ion 1b, p-bromobenzene diazonium ion 2b, and p-nitrobenzene diazonium ion 3b, were used to elucidate how complex formation with CDs influences their electrochemical behavior and surface functionalization. NMR investigations confirmed the formation of inclusion complexes for 1b/β-CD and 2b/α-CD, whereas 3b showed only weak interaction with α-CD. The electrochemical behavior of the aryldiazonium salts was altered in the presence of CD. The grafting efficiency of 1b and 2b was improved upon complexation with CDs, as supported by Raman spectroscopy, scanning tunneling microscopy (STM), and atomic force microscopy (AFM). In contrast, the effect of CD was limited for 3b, consistent with its weak host-guest interaction. We propose that CD complexation suppresses the formation of a self-assembled layer of the aryldiazonium ion at the water-graphite interface for 1b. In the case of 2b, the effect of CD complexation may find its origin in a reduction of side reactions in the electrolyte solution. These factors facilitate efficient covalent attachment. This study provides fundamental insights into the supramolecular control of electrochemical surface functionalization and offers a versatile strategy for tuning grafting density and layer structure on carbon-based materials.
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9. Membrane Phase, Charge, and Curvature Regulate α-Synuclein Binding Dynamics.
PMID:日期:2026-09-08α-Synuclein (αSyn) is an intrinsically disordered protein whose interactions with lipid membranes are central to both its physiological function and its role in synucleopathies. While membrane charge, phase, and curvature are each known to influence αSyn binding, these properties are typically examined independently, leaving their combined effects on both equilibrium and dynamic membrane association unresolved. Here, we systematically investigate how membrane phase and charge jointly regulate αSyn binding, curvature sensitivity, and exchange dynamics using fluorescence microscopy, circular dichroism spectroscopy, and fluorescence recovery after photobleaching (FRAP), complemented by coarse-grained molecular dynamics simulations. Under zwitterionic conditions, αSyn preferentially binds highly curved gel-phase membranes, driven by curvature-dependent enrichment of packing defects arising from faceted vesicle morphologies. Incorporation of anionic lipids selectively enhances binding in liquid-phase membranes while attenuating curvature-dependent partitioning in gel-phase membranes. Dynamic measurements reveal that membrane phase and charge also govern the stability of membrane-associated αSyn, with gel-phase membranes and anionic lipids promoting kinetically stabilized states. Simulations show that curvature-induced defect formation is strongly amplified in gel-phase membranes but largely insensitive to charge. These findings establish that αSyn-membrane interactions are governed by a cooperative interplay between membrane phase, curvature, and charge and highlight the importance of resolving both thermodynamic and kinetic contributions to protein-membrane binding.
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10. Magneto-Mechanical Ball-Bearing Milling Induces Frequency-Dependent Structural Reorganization in Hybrid Multiphase Liposomes.
PMID:日期:2026-09-08Hybrid multiphase liposomes containing coexisting aqueous and oil-rich internal compartments were used as a model system to investigate how lipid assemblies respond to externally applied mechanical stress. A magneto-mechanical system was developed in which a miniature ball-bearing, driven by a rotating magnetic field, generated localized rolling-contact shear and confinement conditions within an enclosed fluid chamber, providing a mechanically distinct actuation environment compared with conventional bulk shear methods. Under these conditions, the liposomes underwent frequency-dependent optical and structural changes associated with mechanically induced membrane perturbation. Tetramethylrhodamine ethyl ester (TMRE), used as a remotely loaded, self-quenching dye probe, exhibited progressively greater deaggregation and dequenching with increasing ball-bearing rotational frequency, as monitored using a ratiometric absorbance metric. Minimal spectroscopic change was observed at 100 Hz, whereas pronounced TMRE dequenching occurred at higher rotational frequencies (1000-1500 Hz). Frequency-dependent spectroscopic changes were observed and interpreted phenomenologically in the context of heterogeneous membrane remodeling processes. Cryogenic transmission electron microscopy (cryo-TEM) revealed progressive frequency-dependent structural remodeling, including fusion-like intermediate morphologies and subsequent reorganization into larger vesicular assemblies following high-frequency actuation. Together, these observations suggest that confined shear generated by magnetically actuated ball-bearing milling can induce extensive membrane restructuring in multiphase liposomal systems. This work presents a mechanically driven framework for studying shear- and confinement-induced restructuring of lipid assemblies.