ACS Applied Engineering Materials
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2026
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IF 3.5
Yang-Biao Xue,Peng Luo,Hai-Tao Jiang,Jiong Kong,Mi Zheng,Min Zheng,Zuo-Shan Wang
Hydroelectricity generators capable of harvesting electricity directly from the chemical energy of atmospheric moisture represent a sustainable technology for self-powered sensing and wearable electronics. However, existing designs suffer from output decay after water saturation and unstable performance under environmental fluctuations, hindering their applications in dynamic and variable wearable conditions. Inspired by the water-transport function of plant stems and leaves, we developed a fabric-based self-sustaining hydroelectric generator (SHEG) that integrates moisture adsorption and water evaporation into a continuous energy-harvesting cycle. The SHEG features an asymmetric heterostructure comprising a hygroscopic ionic-gel layer for rapid moisture capture and proton release, and an evaporative layer based on MoS2/MXene van der Waals heterojunctions that provide confined nanochannels for selective ion transport and directional evaporation. This hierarchical design maintains a stable water gradient, delivering a sustained electrical output for over 120 h and a maximum power density of 377 nW m–2 at 60% RH. The SHEG also responds to wind, heat, and sunlight, which is demonstrated in wearable real-time sensors for respiration and motion monitoring, showcasing its promise as a self-powered platform for next-generation electronics.
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ACS Applied Nano Materials
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2026
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IF 5.8
Kongfu Ou,Jinju Zheng,Jialong Zhao,Kai Wang,Xuanming Qin,Weiyou Yang,Zhentao Du,Hui Fu
Nontoxic CuGaS2 (CGS) quantum dots (QDs) are promising for next-generation displays due to their unique optical properties. However, their wide photoluminescence (PL) full width at half-maximum (FWHM), arising from intraband defect-state-mediated radiative recombination, hinders compliance with the narrow bandwidth requirements for ultrahigh-definition displays. Herein, we introduce a Ga2S3 (GaS) interlayer strategy via a hot-injection method to mitigate lattice mismatch and interface strains between the CGS core and the ZnS shell. Precisely controlling the GaS shell thickness further promotes structural ordering and suppresses sulfur vacancies (VS), thereby reducing nonradiative recombination and enhancing near-band-edge emission. Under optimized conditions, the as-prepared CGS/GaS/ZnS QDs exhibit narrow-band blue emission with a PL quantum yield (QY) of 44% and an FWHM of 24 nm, which is the narrowest value reported to date for Cu-based QDs. As integrated into solid-state light-emitting diode (LED) devices, the QDs yield narrow emission under various operating currents and demonstrate excellent operational stability. These findings highlight the critical role of multishell structures in controlling the defect states and lattice strain in CGS-based QDs, offering a design strategy for next-generation display materials demanding high color purity.
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ACS Applied Bio Materials
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2026
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IF 5.6
HaoRan Jiang,Yang Qu,Qi Meng,Chenyujun Hu,Haoran Zhang,Jinqiu Tian,Bohan Xing,Bojiang Wang,Zhihao Lin,Meng Zhang,Peixun Zhang
Cellular senescence of bone marrow mesenchymal stem cells (BMSCs) represents the fundamental pathological barrier to healing in osteoporotic patients. This study reports a multifunctional bone scaffold specifically designed to reverse this senescent phenotype by upregulating Slc25a33 and Crabp1, key regulators of mitochondrial biogenesis and retinoic acid signaling. The scaffold features interconnected spindle-shaped pores (long axis ∼100 μm) inspired by trabecular bone canalicular lacunae, combining polylactic acid nano-oriented fibers and Type I collagen to simulate rod-like and plate-like trabeculae. This biomimetic design enhances mechanical performance (Young's modulus: 51.478 ± 0.993 MPa, porosity: 65.341 ± 0.863%), facilitates cell migration and substance exchange, and continuously provides Type I collagen to the microenvironment. In vitro scaffold extracts reversed senescence in aged BMSCs, enhancing proliferation (wound closure: 42.46 ± 8.47% vs 39.51 ± 4.35%, p < 0.05), migration, and osteogenic differentiation through Slc25a33/Crabp1 upregulation. In vivo 15-month-old osteoporotic rats showed superior bone regeneration at 12 weeks versus allogeneic bone controls, with significantly improved cancellous bone parameters (BV/TV, Tb.N, and Tb.Th). Single-cell sequencing confirmed expansion of a rejuvenated BMSC subpopulation (cluster 2: 27.9% vs 0.0%, p < 0.05) with activated oxidative phosphorylation and osteogenic pathways. This biomimetic scaffold reverses BMSC senescence to restore bone regeneration capacity in osteoporotic defects.
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ACS Applied Polymer Materials
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2026
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IF 5.2
Jitong Xi,Huitang Guo,Xue Yao,Zhijian Ji,Hua Tang,Chao Yang,Xilin She
Interfacial water typically impairs underwater adhesion by preventing effective adhesive-substrate contact. Herein, a rationally designed copolymer adhesive, synthesized via free radical polymerization of hydrophilic/hydrophobic segments and silane coupling agents, is reported to overcome this challenge through a synergistic water-management mechanism. The introduction of silane groups transforms interfacial water from a barrier into a reactant: its consumption during hydrolysis disrupts the hydration layer, enabling other segments of the adhesive to displace water and establish intimate contact. Uniquely, the bulk curing kinetics are governed by a dynamic solvent exchange process. Initially, the rapid efflux of dimethyl sulfoxide (DMSO) induces phase separation to form a cohesive network and facilitates silanol condensation by solubilizing aqueous byproducts. As bulk water progressively replaces DMSO, the diminishing diffusion gradient and reduced capacity for byproduct removal lead to a self-limiting deceleration of the cross-linking rate, eventually reaching a stable equilibrium. This mechanism results in universal adhesion (0.42–1.98 MPa) on metals (Fe, SS304), glass and polymers (PMMA, PVC, PP), and a progressive strengthening profile that maximizes in ∼10 days,while maintaining 90% performance in harsh environments (acid/alkali/salt). For time-sensitive applications, sodium dodecyl sulfate (SDS)/carbon nanotubes (CNTs) incorporation enables rapid photothermal curing, achieving 60% stronger adhesion within 30 min of xenon irradiation (86% faster than conventional methods). The prepared adhesive combines autonomous long-term strengthening with on-demand rapid curing, addressing a critical limitation in most of conventional underwater adhesives exhibiting static adhesion strength or gradual deterioration over time. Systematic characterization confirms the adhesive and its mechanical properties through this innovative curing process. This work provides fundamental insights into interfacial chemistry manipulation and presents a versatile solution for marine engineering and industrial applications requiring robust, environmentally stable underwater adhesion.
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ACS Applied Materials & Interfaces
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2026
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IF 7.8
Rui Tang,Luanxu Zhu,Zihe Wang,Yongming Hu,Yunbin He,Haoxiang Ma,Omer Rauf,Usman Rauf,Qingfeng Zhang
While ferroelectric-enhanced Ga2O3-based self-powered solar-blind ultraviolet photodetectors (SBUVPDs) can offer high-performance detection of 200–280 nm wavelength due to efficient carrier separation, their accuracy is often compromised by the narrow bandgap (<4 eV) of traditional ferroelectric materials, which makes them susceptible to interference from light signals beyond the SBUV region. To address this issue, we developed a narrow-band self-powered SBUVPD based on Hf0.5Zr0.5O2/(Sn0.1Ga0.9)2O3 heterojunction thin films. This device benefits from a strong ferroelectric depolarization field throughout the whole Hf0.5Zr0.5O2 thin film, and a type-II band alignment at the interfaces of Hf0.5Zr0.5O2 and (Sn0.1Ga0.9)2O3, yielding excellent photoresponse performances with a high responsivity of 25.10 mA/W, large detectivity of 4.63 × 1011 Jones, and fast rise/decay time of 201/325 ms at 0 V bias. Crucially, the ultrawide bandgap (5.45 eV) of Hf0.5Zr0.5O2 confines the cutoff wavelength to within 280 nm, ensuring high detection accuracy. The overall performances of this device outperform those of the most recently reported SBUVPDs utilizing Ga2O3 materials, demonstrating that integrating ultrawide-bandgap ferroelectric layers is an effective strategy for creating high-property, narrow-band SBUVPDs.
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ACS Sensors
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2026
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IF 10.9
Donghang Li,Yida Wang,Haomin Wang,Haojie Lu,Shuo Li,Xunen Wu,Huarun Liang,Yingying Zhang
Exhaled ammonia is a vital biomarker for clinical diagnosis of hepatorenal dysfunction and metabolic disorders. However, conventional sensors are often limited by complex fabrication processes, high operating temperatures, and particularly, compromised selectivity under high-humidity conditions. To overcome these challenges, we developed a laser-assisted heterostructure engineering strategy that enables in situ construction of Schottky barrier in MXene/polyacrylonitrile (PANF) nanofiber membranes, termed as a laser-engineered MXene (LEM) sensor. The laser micropatterning technique provides three key innovations: (1) kinetically controlled deposition of MXene (Ti3C2Tx) with minimal oxidation, (2) self-aligned formation of Schottky barriers through interfacial TiO2/MXene heterojunctions, and (3) creation of hierarchical gas transport channels within the 3D nanofibrous matrix. The optimized LEM sensor exhibits outstanding sensitivity (2.5% ppm−1), a low detection limit (0.2 ppm) at room temperature (25 °C), and humidity operation stability (> 10% response at 90% relative humidity). This performance surpasses that of conventional MXene-based sensors by fivefold in sensitivity without the need for thermal activation. Mechanism studies reveal that the laser-induced heterointerface facilitates charge transfer-dominated ammonia adsorption and desorption kinetics, while the nanofibrous architecture ensures molecular accessibility to active sites. This ambient-processable and scalable fabrication method paves the way for advanced wearable breath analyzers by combining manufacturing versatility, humidity-resistant excellent selectivity, and energy-efficient operation.
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ANALYTICAL CHEMISTRY
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2026
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IF 7.3
Ye Tian,Xinxi Li,Jingdong Tang,Lei Zhang,Shuai Jiang,Halimulati Muertizha,Zhenwei Yang
Diabetic foot ulcer (DFU), a severe complication of diabetes, necessitates sensitive detection of pathogenic microRNAs (miRNAs) as emerging diagnostic biomarkers. The exponential amplification reaction (EXPAR) offers high efficiency and rapid kinetics for miRNA detection, but its application is limited by persistent nonspecific amplification arising from spurious template–template interactions and interference from partially complementary sequences in complex samples. To address this, we present an integrated strategy combining a blocking probe prehybridized to the EXPAR template to sterically hinder nonspecific hybridization, magnetic bead-based isolation of target-bound probes to remove interferents, and a self-priming mechanism that regenerates the EXPAR primer only upon target recognition. This design ensures high specificity and minimizes primer-independent amplification. Coupling this optimized EXPAR platform with a G-quadruplex-based signal transduction system enables facile colorimetric readout for instrument-free visual detection. The method achieves a detection limit of 41.4 aM across a dynamic range of 100 aM to 50 pM for DFU-associated miRNAs, with excellent selectivity against nontarget miRNAs and consistent reproducibility in fibroblasts and serum. This work provides a generalizable solution to the specificity issue in EXPAR and delivers a reliable, sensitive platform for miRNA profiling in clinical and point-of-care settings.
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ACS Applied Materials & Interfaces
·
2026
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IF 7.8
Yingli Zhang,Hailong Zhu,Huaiyang Zuo,Yaqi Hou,Shumin Zheng,Shiming Yang,Jing Wang,Bao Wang
As a potential high-safety and high-energy-density technology, lithium sulfide has been extensively studied as a cathode material for lithium–sulfur batteries under room temperature conditions. However, limited by its intrinsic characteristics of low electronic conductivity and high activation energy barrier, conventional Li2S cathodes struggle to overcome the activation energy barrier at low temperatures, resulting in scarce research on their application below zero. Specifically, studies on operation at −20 °C are nearly nonexistent. Herein, a synergistic strategy combining molybdenum carbide support adsorption and cobalt metal catalysis is proposed for low-temperature performance investigation. Via a lithiation reaction, Li2S@MoC–Co nanocomposites are fabricated by in situ synthesizing Li2S nanoparticles, introducing MoC as the support, and incorporating Co metal. When assembled into batteries with Li2S@MoC–Co as the cathode and metallic lithium as the anode, the activation energy barrier is reduced to 2.41 V at room temperature, exhibiting excellent electrochemical performance. A high initial discharge capacity of 1100 mAh g–1 is achieved at 0.1 C, and a discharge capacity of 430 mAh g–1 is retained after 200 cycles at 0.5 C. Even at −20 °C, Li2S is almost fully activated during the first charging cycle, delivering a discharge capacity of 360 mAh g–1 at 0.05 C. Moreover, a capacity retention rate of 92% is maintained after 300 cycles at 0.5 C. This work realizes high output and high-capacity retention of Li2S at −20 °C, providing a new paradigm for the development of low-temperature Li2S-based batteries.
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ANALYTICAL CHEMISTRY
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2026
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IF 7.3
Bo Wang,Linjie Wang,Xinyu Chen,Zheng Tang,Jinjin Liu,Shuangquan Liu,Xi Chen,Hao Liang,Xiangheng Niu
Probing the activities of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) is of significance for clinical diagnosis of hepatic diseases and monitoring of therapeutic effects. Traditional detection methods often rely on a single signal driven by cascade catalysis of multiple natural enzymes, exposing weaknesses, including poor robustness and limited reliability. To overcome the deficiencies, here we design a novel nanoprobe (Na2V6O16/Cu-MOF) with both peroxidase-like catalytic and luminescent properties and establish a colorimetric/fluorescence bimodal method for the on-demand sensing of hepatic ALT and AST. In the bifunctional nanozyme, Na2V6O16 exhibits reposeful enzyme-like activity to trigger the oxidation chromogenic process of 3,3′,5,5′-tetramethylbenzidine (TMB) via H2O2-dependent free radical formation, and the 2-aminoterephthalic acid-coordinated Cu-MOF presents stable luminescence, which can be quenched by blue oxTMB from nanozyme catalysis via the inner filter effect. The presence of ALT or AST mediates the generation of H2O2, which consequently modulates the colorimetric turn-on and fluorescence readouts. With the enzyme–nanozyme cascade catalysis facilitated by Na2V6O16/Cu-MOF as well as its fluorescent feature, high-sensitivity bimodal detection of ALT and AST was obtained. Importantly, the established system offers robust catalytic performance, and the on-demand readouts enable mutual verification of different responses, both of which jointly improve the dependability of target analysis. Our work provides a reliable strategy for transaminase biomarker detection, contributing new insights into the design of multifunctional nanozymes and their applications in constructing advanced catalytic sensing platforms.
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ACS Applied Polymer Materials
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2026
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IF 5.2
Min Zhao,Fahu Yang,Dinggao Wang,Chao Zhang,Shaomin Zhou,Lin Li,Zhongming Li,Haili Zhao,Tao Chen
The development of porous films with biodegradability, high electromagnetic interference (EMI) shielding, and thermal conducting performance for advanced electronics is urgent. Herein, a superthin and flexible film composed of PBAT/MWCNT and PEDOT:PSS/PEO/SWCNT is fabricated through combining electrospinning and spin-coating. In this work, the content of PEO and SWCNT should be controlled to 1 and 10 wt % for achieving the optimal layered-cavity structure within the film, guaranteeing the proper flow ability of the suspension. The robustly constructed layered-cavity structure within the film allows the electromagnetic waves to suffer multiple reflections, which enhances the EMI shielding performance. Meanwhile, the structure also plays an important role in promoting the electric and heat conduction of the film. Consequently, the film with a thickness of 0.14 mm exhibits the most optimal EMI shielding efficiency (SE) of 26.02 dB, electrical conductivity of 40.371 S/m, and thermal diffusion coefficient of 0.124 mm2/s. The EMI SE/thickness is about 185.86 dB/mm, attaining a cutting-edge level compared to reported polymer-based films. Besides, the PEO or SWCNT content should be controlled, and the two-side spin-coating is also needed for thicker films. This work offers a method to develop superthin biodegradable films with excellent performance, positioning it as a strong alternative for flexible electronics.
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ACS Catalysis
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2026
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IF 13.6
Hui Zhao,Xin-Pu Fu,Wei-Wei Wang,Chun-Jiang Jia
The Pt-GaOx combination is widely investigated for catalyzing propane dehydrogenation (PDH), as its efficient site synergy compensates for the low selectivity associated with single Pt sites. However, these catalysts suffer from rapid deactivation under harsh reaction conditions due to the thermal migration and sintering of active sites, alongside irreversible structural degradation. To address these challenges, we developed mesoporous silica-confined Sm2O3 to stabilize the Pt-Sm2O3 and GaOx-Sm2O3 interfaces. Based on comprehensive characterization, the as-formed small Sm2O3 species play a crucial role in boosting the catalytic performance. Specifically, the confined Sm2O3 clusters intensify interactions with both Pt and GaOx within the mesopores, which suppresses the excessive aggregation of Pt-Ga alloys and stabilizes the active Gaδ+–H species. As a result, the Pt-Ga/Sm@SiO2 catalyst exhibits a low deactivation constant (0.007 h–1) and a high specific activity of 2.28 s–1 after 100 h of continuous operation at 550 °C, significantly outperforming its conventional Pt-Ga counterparts. This work thus provides a robust strategy for enhancing the durability of Pt-GaOx catalysts and advances their practical implementation in industrial PDH processes.
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LANGMUIR
·
2026
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IF 4.4
Zhipeng Su,Xueyin Zhang,Haiwei Li,Pingchuan Sun,Tiehong Chen
Desilication by alkali etching is generally used to prepare hierarchical zeolites to enhance their mass transfer properties; however, for high Si/Al ratio zeolites, the alkali etching would greatly reduce the framework crystallinity or even give rise to amorphous product. Though organic amines have been used as additives during alkali etching to protect the microporous framework, the problems of toxicity, volatility, high cost, and nitrogen-containing wastes induced by organic amines would hinder their scalable application. In this study, we provide a different viewpoint on the protective mechanism of zeolite micropores during alkali etching, and the attention is focused on the framework polarity, which has not been studied before. We develop a hydrophobic nitrogen-free organic molecule (such as acetophenone)-protected alkali etching method to prepare hierarchical zeolites with high crystallinity and high porosity, and the prepared hierarchical Y zeolites showed enhanced performance in the catalytic cracking of bulky molecules. This method is based on the principle that the hydrophobic micropores of high-silica zeolites could adsorb hydrophobic organic molecules from aqueous solution, which would fill in the zeolite micropores and prevent excessive OH– damage to Si–O–Si bonds. Thus, our method is facile for scalable production without the tedious pretreatment of vacuum dehydration, organic amine impregnation, and drying before alkali etching. Furthermore, concerning the characteristics of a nitrogen-free process and low volatility, using acetophenone as a protective agent would reduce the cost and avoid nitrogen-containing wastes in practical applications.
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