POLYMER
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2026
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IF 5.1
Wanying Zhang,Yongjian Zhu,Yiyong Chen,Chengbin Zou,Feng Dou,Dezhi Zhan,Hao Zhong,Jinru Li,Shilong Zhong,Rui Chen,Yanyu Gao,Cheng Wang,Xudong Chen
Polyimides are widely used in the manufacture of flexible copper-clad laminates because of their excellent thermal stability, mechanical properties, and solvent resistance. However, copper-clad laminates based on fully aromatic polyimide substrates suffer from electronic signal propagation delay and signal loss during operation, issues that become particularly pronounced under high-frequency signal transmission. Additionally, the traditional subtractive process used to fabricate copper-clad circuits on polyimide film surfaces has significant drawbacks, including high energy consumption and environmental pollution. Therefore, developing low-dielectric polyimides and additive manufacturing methods for flexible copper-clad laminates remains a major challenge. Here, controllable regulation of segment sequence structure and segment length in silicon-oxygen polyimide was achieved through a stepwise polymerization strategy. The resulting block polyimide exhibits excellent comprehensive performance, with a dielectric constant as low as 2.76 and an initial thermal decomposition temperature of 489 °C. By combining laser direct writing with additive patterning, controllable copper metallization based on a silver seed layer was successfully achieved on the surface of the block polyimide films. The copper wires, composed of cubic-phase copper nanoparticles with grain sizes of 70-90 nm, display high-resolution edge definition and excellent mechanical stability. This synergistic approach, integrating controllable polymer synthesis with surface metal patterning, provides an effective alternative method for manufacturing high-performance flexible electronic devices.
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高影响因子
JOURNAL OF POWER SOURCES
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2026
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IF 8.4
Fangyu Meng,Ziheng Liu,Daxin Shi,Yaoyuan Zhang,Kangcheng Chen,Qin Wu,Hansheng Li
Homogeneous and transparent proton exchange membranes (PEMs) denoted as HBPPQ/PPQ-x are fabricated via in situ combination of hyperbranched polyphenylquinoxaline (HBPPQ) and linear polyphenylquinoxaline (PPQ). The rigid hyperbranched structure generates stable nanocavities, giving HBPPQ/PPQ-50 high fractional free volume (FFV) of 37%. Moderate main-chain basicity provides favorable phosphoric acid (PA) affinity, leading to the PA uptake of 334%. HBPPQ/PPQ-x membranes exhibit pronounced anisotropic swelling and proton conduction behavior. HBPPQ/PPQ-50 delivers the σ ⊥ of 76 mS cm −1 at 180 °C, 3.1 times the in-plane conductivity ( σ // ). It shows an open-circuit voltage of 1.004 V, higher than commercial PBI (0.977 V), and maximum power density of 1122 mW cm −2 , twice that of PBI at 180 °C without back pressure. No obvious voltage decay is observed during 200 h durability test at 160 °C and 0.2 A cm −2 . These results demonstrate that constructing high free volume hyperbranched/linear composite membranes is an effective strategy to simultaneously enhance PA uptake, proton conduction, and HT-PEMFC performance.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Zunxiang Ma,Bingjian Zhou,Jiaojiao Yu,Jingxian Tang,Linzhuo Liu,Hongyan Ye,Juan Wang,Yu Yang
Surface methylation: Improves silica dispersion and uniform particle distribution during blade coating. • Colloidal assembly: Forms a homogeneous porous network for antireflection and superhydrophobicity. • Multifunctional coatings: Combine high transmittance, durability, superhydrophobicity, and enhanced PV efficiency. Controlling colloidal assembly for uniform film formation remains a key challenge in shear-driven coating processes for scalable fabrication of high performance silica coatings. Herein, a surface methylation strategy was proposed to modify the interfacial properties of silica nanoparticles, enabling controlled colloidal assembly and uniform film formation during blade coating. Surface methylation of fumed SiO 2 with dimethyldimethoxysilane (DMDMS) effectively reduces the surface energy and suppresses particle aggregation, resulting in enhanced dispersion stability and a more uniform particle distribution. Combined with solvent engineering using an EtOH/DMSO mixed solvent system, we promote uniform colloidal assembly during doctor blading, leading to the formation of a homogeneous porous network. This well-defined microstructure simultaneously provides refractive index matching for anti-reflection and surface roughness construction for superhydrophobicity. Consequently, the optimized coating exhibits high optical transparency in the visible region, with an average transmittance of 92.5% when referenced to air, a water contact angle exceeding 150°, and an increase in normalized photovoltaic conversion efficiency from 91% to 93.7%, In addition, the coating demonstrates reasonable durability under mild mechanical impact and abrasion. Importantly, the shear-assisted blade coating process provides a scalable approach for uniform film fabrication. This work establishes a direct correlation between surface methylation, colloidal assembly, and film formation, providing new physicochemical insight and a scalable strategy for multifunctional coating design. Download: Download high-res image (167KB) Download: Download full-size image
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COMPOSITES PART B-ENGINEERING
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2026
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IF 14
Jiaxin Zheng,Min Liu,Bin Ma,Jie Dong,Qi Li,Yu Feng,Wei Wang,Shuai Yuan,Can Wu,Xiangyu Jin,Changqing Hong,Xinghong Zhang,Jiecai Han
The extreme thermal conditions encountered during planetary reentry challenge the performance limits of conventional homogeneous thermal protection systems (TPS), motivating the exploration of advanced architectures, among which gradient architectures have emerged as a particularly promising approach. However, the controllable fabrication of gradient composites with high service reliability remains a critical challenge, necessitating the development of a new and robust strategy for constructing gradient thermal protection system (G-TPS). Here, we propose a pressure-assisted melt infiltration strategy to construct G-TPS. By exploiting the temperature-dependent solid–liquid phase transition of ceramic–resin mixture (CR), a dense thermal protection layer (TPL) is precisely formed on the fabric surface, while a lightweight phenolic aerogel is generated within the fabric, enabling seamless integration with TPL. Benefiting from the well-defined gradient architecture and robust interfacial bonding, the resulting composites maintain a low density (<0.5 g/cm 3 ) while delivering exceptional impact resistance and ablation resistance. Notably, the composites exhibit no surface damage after a 5 J drop-hammer impact and withstand five repeated oxy–acetylene torch tests at 1600 °C without failure. The G-TPS with its fabrication process provides a versatile design paradigm for TPS under extreme environments and shows strong potential for extension to other high-performance gradient composite systems.
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Coatings
·
2026
·Vol. 16
·期 7
·821
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IF 3.4
Xinkang Su,Guoxin Shi,Longhao Li,Cuncun Wu,Yangyang Zhang,Fangzhou Liu
HighlightsWhat are the main findings?This work firstly confirms that ambient humidity remarkably affects the inhomogeneous aggregation of self-assembled monolayers (SAMs).Protic polar solvents cause severe aggregation of SAMs under ambient conditions, while aprotic polar solvents alleviate this defect.The ethanol (EtOH)/N,N-dimethylformamide (DMF) mixed-solvent system enables the fabrication of uniform SAM films and improves interfacial properties.What are the implications of the main findings?Uniform SAM films can be fabricated under humid ambient conditions, which simplifies device preparation conditions.This work provides a feasible ambient fabrication strategy for the industrialization of perovskite solar cells.The solvent engineering offers references for preparing similar self-assembled monolayer systems in ambient air.Benefiting from the booming development of self-assembled monolayer (SAM) based hole-transporting materials, inverted perovskite solar cells (PSCs) have attained a certified power conversion efficiency (PCE) beyond 27.0%, exhibiting great potential for commercialization. However, conventional SAM molecules are prone to self-aggregation owing to their inherent molecular configurations, which readily induced defective and inhomogeneous deposition. In addition, state-of-the-art SAM-based hole-transporting layers are generally deposited in inert environments, while the ambient moisture is expected to further deteriorate the homogeneity of the SAM layers. In this work, a mixed-solvent system of ethanol/N,N-dimethylformamide (DMF) was adopted for the deposition of Me-4PACz SAMs in ambient conditions, which enables significant suppression of intermolecular aggregation in precursor solution and moisture-induced inhomogeneity. The high-quality homogeneous SAM-based hole-transporting layers, along with subsequently optimized perovskite buried interface properties, further empower a prominent increase in the PCE of inverted PSC devices up to 25.0%.
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MICROCHEMICAL JOURNAL
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2026
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IF 5.2
Guixia Wang,Yao Lei,Liqiang Yang,Zhuo Yang,Ruting Zheng,Xianming Liu,Min Wang
The phosphatase-like activity of UiO-66 was improved by introducing OMS. • UiO-66-OMS exhibited twice the catalytic activity of pristine UiO-66. • This enhanced activity results from enlarged pores and boosted Lewis acidity. • A sensitive colorimetric immunoassay was developed for the detection of CEA. UiO-66 with open metal sites (UiO-66-OMS) nanozymes were synthesized via defect engineering through the introduction of benzoic acid as a modulator during UiO-66 synthesis. As a monocarboxylic acid analogous to the organic ligand 1,4-benzenedicarboxylic acid (BDC), benzoic acid competes with BDC for coordination to Zr O clusters, thereby creating abundant coordinatively unsaturated open metal sites while preserving the crystal structure of UiO-66. Using 4-nitrophenyl phosphate ( p -NPP) as the model colorimetric substrate, UiO-66-OMS exhibited enhanced phosphatase-like catalytic activity, which was twice that of pristine UiO-66. Mechanistic investigations revealed that the increased activity stems from the enlarged pore size and specific surface area of the nanozyme, as well as its enhanced Lewis acidity. By employing UiO-66-OMS as an antibody label, a sensitive colorimetric immunoassay was developed for the detection of carcinoembryonic antigen (CEA), with a linear range of 10–400 ng/mL and a limit of detection of 1.17 ng/mL. This study offers a new strategy for the development of highly active MOF-based nanozymes. Download: Download high-res image (111KB) Download: Download full-size image
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APPLIED SURFACE SCIENCE
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2026
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IF 6.6
Shaofei Song,Pengfei Li,Fulin Zhou,Yang Deng,Xu Wu
TD-COF/NiFe-LDH heterojunction photocatalyst was in situ constructed on floatable carbonized wood. • Efficient degradation of broad-spectrum pollutants is achieved through pollutant enrichment and dual-pathway electron/energy transfer. • Active oxygen species are selectively generated, enabling highly efficient degradation of various antibiotics and dyes. Hierarchical TD-COF/NiFe-LDH heterojunction photocatalytic materials were constructed using natural wood‑derived carbonized wood as a carrier. The anisotropic macroporous channels of the carbonized wood serve as an efficient “water transport system,” and the heterojunction was prepared via an in‑situ growth method. The material achieves a dual synergy between mass transfer and catalysis: the vertically aligned through‑channels of the carbonized wood promote rapid adsorption and enrichment of pollutants, while its three‑dimensional conductive framework provides an efficient electron transport network. Simultaneously, the TD-COF/NiFe-LDH heterojunction interface significantly enhances the separation efficiency of photogenerated charge carriers. Mechanistic studies reveal that under visible light, the material selectively generates singlet oxygen ( 1 O 2 ) and superoxide radicals (•O 2 – ). In this process, TD-COF primarily drives the energy transfer pathway for 1 O 2 , while the heterojunction structure facilitates the efficient reduction of O 2 via electron transfer. The experimental results indicated that a variety of antibiotics and dyes, including ciprofloxacin (CIP), tetracycline (TC), rhodamine B (RhB), and methylene blue (MB), could be efficiently degraded through the synergistic mechanism of the material, which demonstrated excellent catalytic performance. This work provides a new strategy for designing photocatalysts based on natural biomass. Download: Download high-res image (204KB) Download: Download full-size image
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
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IF 8.7
Yubin Xiang,Jie Li,Tao Deng,Xue Lu,Yongming Guo
A pesticide carrier was fabricated via Fe 3+ -mediated co-crosslinking strategy. • Metal-polyphenol-functionalized carriers enabled pH-triggered controlled release. • The release was governed by synergistic effects of diffusion and hydrogel relaxation. • The carrier was non-toxic to murine fibroblast cells and showed good biosafety. Hydrogel-based controlled release systems are widely used in pharmaceutical and agricultural fields. To achieve controlled release of hydrophilic drugs, which otherwise release rapidly through hydrated polymer networks, we develop a facile ferric ion co-crosslinking strategy to fabricate composite hydrogel beads. The highly porous composite hydrogel beads were prepared by blending recycled household formaldehyde adsorbent (RFA) with sodium alginate (Alg) at a 1:1 ( w /w) ratio, followed by Fe 3+ -induced crosslinking and subsequent surface functionalization with tannic acid (TA). Through altering the Alg hydrogel structure, RFA enabled the hydrogel to synergistically restrict drug molecules, and coupled with the blocking function of metal-polyphenol complexes (MPC), this composite structure provided effective regulation of water-soluble drug molecule release. The carrier demonstrated pronounced swelling and disassembly of the metal-polyphenol microfilm, resulting in rapid gentian violet (GV) release under alkaline pH conditions. In acidic environments, the conversion of ternary metal-polyphenol complexes into double or single complexes weakened the “on-off” effect, thereby accelerating GV release compared with neutral conditions. The release of GV was governed by a combination of diffusion-controlled processes and progressive hydrogel bead relaxation. Additionally, the carrier exhibited no detectable toxicity in murine fibroblast cells and during rice seed germination, indicating its favorable biosafety. These findings demonstrated that the controlled-release system had the potential to be further explored for environmental protection and hazardous substances management.
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高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·123941
·
IF 7.5
Mengyuan Yang,Yanling Li,Temitope Fausat Ajibade,Ziang Zhou,Zhaoping Cai,Lixiang Li,Huali Tian
Covalent organic frameworks (COFs) are effective materials for water treatment membranes due to their tunable pore structures and high compatibility. While composite modification strategies combining plant polyphenol tannic acid (TA)-Fe³⁺ and COFs show great promise for TFC membranes, they typically involve organic solvents or complex pre-modification of the fillers. In this study, a green, fully-aqueous layer-by-layer (LbL) self-assembly strategy was employed to prepare TA-Fe(COF-LZU1)/PES membranes. By exploiting the inherent synergy between the rigid crystalline channels of COF-LZU1 and the adhesive TA-Fe network, this approach directly utilizes pristine COF-LZU1 without secondary modification. Unlike conventional methods, the entire process avoids organic solvents, offering a highly sustainable technical alternative. The incorporation of COF-LZU1 significantly enhanced the membrane surface properties, with surface roughness increasing from 17.0 ± 2.2 nm to 43.8 ± 8.5 nm and the water contact angle decreasing from 77.0 ± 1.6° to 20.0 ± 1.0°, thereby substantially improving the membrane’s hydrophilicity. The TA-Fe(COF-LZU1)/PES membrane achieved a pure water permeance of 35.85 L·m - ²·h - ¹·bar - ¹, representing a 11.5% increase over the TA-Fe/PES membrane. It exhibited excellent separation performance, achieving high rejections of 98.3% for Direct Red 80, and further demonstrated robust stability in mixed dye/salt solutions. In five-cycle bovine serum albumin (BSA) tests, the membrane exhibited improved antifouling durability, yielding a flux recovery ratio of 75.5%. Additionally, it operated stably across a pH range of 4–8. This green self-assembly approach provides a practical strategy for preparing composite membranes for dye wastewater treatment.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Yuying Wang,Xiutao Yang,Guopeng Zhu,Haibin Niu,Shaoqing Zhang,Quanying Wang,Hongwen Yu
The accurate non-enzymatic electrochemical detection of glucose is constrained by sluggish charge transfer kinetics and non-optimized adsorption of reaction intermediates on single-phase transition metal oxide. Herein, we rationally design heterojunction Co 3 O 4 /NiMoO 4 hierarchical arrays, where a spontaneous built-in electric field (BEF) is formed at the p-n hereo-interface due to the precise work function difference in NiMoO 4 and Co 3 O 4 . This BEF directionally drives electrons from NiMoO 4 to Co 3 O 4 at 0.16 |e|, as confirmed by DFT charge density and Bader charge analysis, thereby accelerating glucose electrocatalytic oxidation kinetics. Moreover, the hierarchical structure of Co 3 O 4 nanoneedles grown on NiMoO 4 nanorods enhances the electrochemical active area and introduces dual catalytic sites of Co and Ni atoms, whose d-band centers are modulated to weaken excessive adsorption at Co sites while maintaining Ni activity. As a results, the assembled sensor achieves an ultrahigh sensitivity of 28,470 μA mM −1 cm −2 , a low detection limit of 0.396 μM and excellent recovery rates (94.6%–105.6%) in complex real samples. This work demonstrates that resolving the charge transfer and adsorption trade-off via BEF-engineered heterostructure offers a generalizable route for high-performance sensing. Download: Download high-res image (156KB) Download: Download full-size image
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BIOCHEMICAL PHARMACOLOGY
·
2026
·
IF 6.5
Yu-Jing Wang,Shuai-Bing Ying,Lin Liu,Qiu-Dan Zhang,Yong Pan,Yu-Qi Hong,Hao-Yang Hu,Yi Liu,Jia-Ni Wei,Zhi-Juan Zhang,Yun-Qing Qiu,Yan Lou
Combretastatin A4 (CA4) is a potent microtubule inhibitor, but its phenolic hydroxyl group is prone to oxidation into toxic quinone products, leading to poor metabolic stability and dose-limiting toxicity that restricts its clinical application. To overcome this limitation, we propose a novel dimer prodrug strategy that covalently links two CA4 molecules via an enzyme-cleavable linker, achieving temporary masking of the phenolic hydroxyl group. The resulting CA4-dimer1 and CA4-dimer2 exhibited potent in vitro antiproliferative activity. Of the two dimers evaluated, CA4-dimer1 demonstrated superior in vitro potency. Crucially, CA4-dimer1 achieved significant tumor suppression rates in patient-derived xenograft (PDX) liver cancer models without notable toxicity. CA4-dimer2 releases active CA4 through gradual hydrolysis but showed slightly lower in vivo release efficiency compared to CA4-dimer1. Flow cytometry and Western blot analysis revealed that this prodrug exerts antitumor activity through the same mechanism as the parent compound CA4. Collectively, the reported CA4-dimer prodrug strategy offers a highly promising approach for treating liver cancer and enhancing the therapeutic index of phenolic drugs, while also providing a potential strategy for structural optimization of drugs containing phenolic hydroxyl groups
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LANGMUIR
·
2026
·
IF 4.4
Zehua Cai,Zongxue Yu,Yan Yan,Bing Lin,Hailong Zhang,Yiping Hu,Taigang Zhou,Yingying Wang,Jiaqi Li,Junlei Tang
Electrocatalytic antimony-doped tin oxide (ATO) anodes are promising for wastewater treatment due to their high activity and low material cost. Nevertheless, the practical application is hindered by two-dimensional SnO2 electrodes with small active area, low mass transfer rates, and poor adhesion of the active layer and the substrate. In this study, a porous titanium foam-based ATO (TF@ATO) anode was successfully constructed by the solvothermal method, exhibiting good electrochemical performance and structural stability. Compared to the plate SnO2 electrodes, the electroactive surface area of 3D TF@ATO anode is increased by ∼6 times, and the accelerated service life is improved by ∼35 times. In the degradation of model rhodamine B (RhB) effluents (50 mg/L), the porous TF@ATO anode demonstrates the quicker decolorization rate (98.52%) and lower specific energy consumption (3.34 kWh/m3/order) than that of the conditional plate anode within 120 min at a current of 10 mA/cm2. More importantly, the porous Ti-based electrode exhibited effective degradation in high-concentration (1000 mg/L) dye wastewater, which indicates that the prepared electrodes had potential for engineering application. Finally, the possible degradation pathways were proposed based on high-performance liquid chromatography–mass spectrometry analysis, suggesting a feasible strategy toward efficient and deep mineralization of dye-containing wastewater.
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危险品化学品经营许可证（带存储）