Foods
·
2026
·Vol. 15
·期 16
·2829
·
IF 6
Jianchao Deng,Tianyu Chen,Jin Huang,Chunsheng Li,Xiao Hu,Xue Zhao,Yanyan Wu,Shengjun Chen,Yongqiang Zhao
The quality of yellowfin tuna is highly vulnerable to microbial proliferation, which accelerates quality deterioration and spoilage throughout storage. In this study, the dynamic changes in biogenic amines (BAs), total volatile basic nitrogen (TVB-N), and total plate count (TPC) across a different storage temperature range of 0 to 25 °C were studied, followed by a shelf-life prediction based on kinetic models. The TPC, TVB-N, and most BAs increased significantly with increasing storage time and temperature. Correlation analysis was used as an exploratory approach and showed that only histamine and cadaverine exhibited significantly positive correlations (|r| ≥ 0.6,p< 0.05) with TPC and TVB-N within the present dataset. Histamine was selected as a candidate BA indicator for kinetic modeling because only this BA changed significantly during storage at different temperatures. Utilizing histamine, TPC, and TVB-N, preliminary kinetic equations for shelf-life estimation were developed using first-order kinetics and the Arrhenius equation. Among the tested indicators, TPC showed relatively greater temperature sensitivity and preliminary within-batch agreement. These results provide preliminary reference data for further validation of tuna during the refrigeration process.
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Catalysts
·
2026
·Vol. 16
·期 8
·725
·
IF 4.5
Hongtao Xie,Limi Yan,Shijian Lu,Pengcheng Xiang,Dongliang Liu,Lili Wang
The electrocatalytic reduction of CO2into value-added chemicals offers a promising route to mitigate greenhouse gas emissions, yet the uncontrollable structural reconstruction and surface rearrangement of electrocatalysts during operation often lead to severe activity degradation. Herein, we reveal that Bi2O2SO4(BSO) undergoes an irreversible phase transformation into Bi2O2CO3(BCO) nanosheets accompanied by the partial reduction of Bi3+to metallic Bi0under cathodic potentials. A series of BCO/BSO heterojunction catalysts with tunable compositions are synthesized via a mild in situ ion-exchange method. To circumvent the detrimental effects of this dynamic reconstruction, we devise a pre-activation strategy that deliberately completes the structural evolution prior to electrocatalysis. The optimized 20%-BCO/BSO heterojunction achieves a remarkable Faradaic efficiency of 98.4% for formate production in a flow cell at elevated potentials, with >95% FE(HCOOH)over a wide potential window (−0.8 to −1.7 V vs. RHE). In situ infrared spectroscopy elucidates that the reconstructed interface can promote CO2adsorption, stabilize the *OCHO intermediate, and facilitate HCOOH desorption. This work provides experimental evidence of the reconstruction behaviour of bismuth-based catalysts and offers a rational design method for constructing structurally stable heterojunction electrocatalysts.
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MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Chenxuan Ai,Xueli Yang
MOF-derived ZnO and Au-ZnO materials were synthesized via a coprecipitation method. • The response value of 0.5 wt% Au-ZnO to 100 ppm n-butanol is 649.77 at 250 °C. • Response time is just one second, enabling real-time detection of n-butanol. • This sensor has a low detectable concentration, excellent selectivity and stability. N-butanol is a flammable volatile organic compound (VOCs) posing potential threats to human health and environmental quality, making its real-time detection critically important. Although Au-functionalized MOF-derived ZnO has been investigated for gas sensing, the influence of Au loading on surface-defect regulation and n-butanol sensing behavior remains insufficiently understood. Herein, porous ZnO rhombic dodecahedra derived from ZIF-8 were functionalized with controlled Au loadings of 0.25, 0.5, and 0.75 wt%. The optimized 0.5 wt% Au-ZnO sensor exhibited a response of 649.77 and a response time of 1 s towards 100 ppm n-butanol at 250 °C, with the response being approximately 3.6 times that of pristine ZnO. A measurable response of 1.41 was obtained at 50 ppb, representing the lowest experimentally verified concentration in this study. The sensor also demonstrated good selectivity, repeatability, and long-term stability. XPS analysis showed that the 0.5 wt% Au-ZnO sample possessed the highest relative oxygen-vacancy content of 34.8%. DFT calculations further suggested a stronger adsorption tendency of n-butanol on the Au-ZnO surface than on pristine ZnO. These results demonstrate that controlled Au loading provides a favorable balance among interfacial charge modulation, oxygen-vacancy regulation, catalytic activity, and adsorption-desorption kinetics. The dodecahedral structure of the MOF-derived ZnO confers high sensitivity to n-butanol on the sensor, providing uniform anchoring sites for gold nanoparticles (Au NPs). Through Schottky barrier modulation, catalytic effects and oxygen vacancy enhancement, the modification with Au NPs further improves the capture efficiency and signal amplification for n-butanol concentrations in the ppb range. Download: Download high-res image (231KB) Download: Download full-size image
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CARBON
·
2026
·
IF 12.7
Jiale Ma,Ying Huang,Hanjie Huang,Meng Zong
The as-prepared N-doped porous carbon microwave absorption material derived from Zn-benzimidazole (Zn-BIM) exhibits excellent electromagnetic wave absorption performance, achieving a minimum reflection loss (RL m ᵢ n ) of −57.33 dB with an effective absorption bandwidth (EAB) of 8.72 GHz at a matching thickness of only 2.41 mm. • The effects of Zn 2+ /BIM molar ratio and concentrated NH 3 ·H 2 O dosage on the microstructure and electromagnetic wave absorption performance of Zn-BIM derived carbon are systematically investigated. • The ethanol solvent and strong alkaline conditions facilitate the formation of low-crystallinity Zn-BIM frameworks with abundant defects. Such structure endows the material with abundant defect sites, heterogeneous interfaces and porous structures, thereby enhance its electromagnetic wave absorption capability. • After high-temperature pyrolysis, the Zn-BIM derived N-doped porous carbon effectively optimizes impedance matching and strengthens dielectric loss, realizing synergistic regulation of microwave absorption performance through impedance matching, dipole polarization, interfacial polarization and conductive loss. With the rapid proliferation of electronic devices and microwave communication technologies, severe electromagnetic interference (EMI) and electromagnetic radiation pollution have become pressing issues, urgently requiring the development of high-efficiency microwave absorbers with broad bandwidth and strong attenuation capability. Metal-organic frameworks (MOFs)-derived carbon materials have emerged as promising candidates for advanced microwave absorption by virtue of their tunable morphology, large specific surface area, and controllable heteroatom doping. Herein, hierarchical N-doped porous carbon microwave absorbers were successfully fabricated via a facile ethanol-mediated solvothermal route combined with high-temperature pyrolysis, using a Zn-benzimidazole (Zn-BIM) coordination polymer as the precursor, while concentrated NH 3 ·H 2 O served simultaneously as the alkaline regulator and N source. The microstructure, carbon defect density, and microwave absorption performance were systematically optimized by modulating the Zn/BIM molar ratio and NH 3 ·H 2 O dosage. The optimized sample delivered exceptional microwave absorption performance at a Zn/BIM molar ratio of 1:2 and NH 3 ·H 2 O dosage of 9 mL, achieving a minimum reflection loss (RL min ) of −57.33 dB at 2.41 mm and a broad effective absorption bandwidth (EAB) up to 8.72 GHz, well satisfying the requirements of practical electromagnetic protection applications. The superior absorption performance originates from the synergistic contribution of optimized impedance matching, conductive loss, dipole polarization, and abundant interfacial polarization induced by the hierarchical porous structure and N-doping. This facile and eco-friendly strategy provides a feasible reference for the rational design of high-efficiency microwave absorbers toward 5G/6G electromagnetic protection, aerospace radar stealth, and precision electronic device interference shielding. In this work, N-doped porous carbon materials were fabricated via high-temperature pyrolysis of Zn-BIM coordination polymers, using ethanol as the solvent and concentrated NH 3 ·H 2 O as the alkali source. The molar ratio of Zn 2+ to BIM ligand and the dosage of NH 3 ·H 2 O were systematically regulated. Experimental results reveal that the as-prepared material delivers excellent microwave absorption performance. When the molar ratio of Zn 2+ to BIM ligand is 1:2 and the NH 3 ·H 2 O dosage of 9 mL. Its minimum reflection loss (RL m ᵢ n ) reaches −57.33 dB, and the effective absorption bandwidth is up to 8.72 GHz. The superior absorption performance originates from the synergistic effect of multiple scattering induced by the structure defects. This work provides a new strategy to design lightweight microwave absorbers with strong absorption and broad bandwidth. Download: Download high-res image (417KB) Download: Download full-size image
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Nature Communications
·
2026
·
IF 18.1
Li Chao,Chen Zehao,Li Wentao,Deng Ronghui,Huang Lingan,Song Yifan,Wang Yiqun,Cui Guoqing,Liu Huawei,Yu Jiakuo
Excessive transforming growth factor-β1 (TGF-β1) signaling is a key driver of the pathological processes of fibrosis and matrix disorganization in tendinopathy, yet current treatments do not directly target this fibrotic microenvironment. Here we show that a self-assembling peptide composed entirely of natural amino acids, AsPep-FTSQ, can locally capture TGF-β1 and remodel the pathological tendon niche. Injecting AsPep-FTSQ into rat and beagle models of tendinopathy resulted in the formation of an interconnected nanofibrous network in situ that selectively sequesters excess TGF-β1. This network suppresses pro-fibrotic signaling, limits pathological tendon cell (TC) state transitions, and promotes collagen realignment. These effects improve tendon structure and functional repair across species. This fully natural, self-assembling peptide composed of amino acids provides a modular strategy for local cytokine sequestration and suggests a therapeutic approach for tendinopathy and potentially other fibrotic soft-tissue disorders.
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CHEMICAL PAPERS
·
2026
·
IF 2.7
Zhu Li,Gao Xizi,Zhang Lijuan,Zhang Jun,Guo Sheng
Advanced oxidation processes (AOPs) based on persulfate (PS) have been widely applied in environmental remediation owing to their ability to generate strong oxidizing reactive species. However, the traditional homogeneous and heterogeneous PS activation systems are prone to cause secondary pollution problems such as the leaching of toxic metals or the formation of sludge. To overcome these technical bottlenecks, this study constructed a ternary catalyst-free system coupling mechanical stirring (MA), ultrasonic irradiation (US), and PS, aiming to efficiently degrade organic contaminants in water bodies. In the proposed MA/US/PS system, peroxymonosulfate (PMS) demonstrates a significantly higher removal rate of Rhodamine B (RhB) than those of sodium persulfate (PDS), ammonium persulfate (PNS), and hydrogen peroxide (H 2 O 2 ) under the same conditions, which could be associated with the asymmetry structure of PMS, potentially facilitating its activation. Moreover, the MA/US/PMS system maintains stable catalytic activity over a broad pH range (3.09–10.52) and demonstrates excellent degradation efficiency in the presence of various coexisting anions and in actual water matrices. The effects of key operational parameters such as PMS dosage, agitation speed, ultrasonic power, and temperature on the degradation efficiency is comprehensively investigated. By combining radical quenching tests and electron paramagnetic resonance (EPR) techniques, the dominant reactive species responsible for RhB removal are identified. This work proposes an efficient, green, and catalyst-free activation strategy for PMS, which holds great potential for the advanced treatment of actual wastewater.
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DESALINATION
·
2026
·
IF 9.9
Xiaowen Cui,Xin Wang,Tinghui Wu,Xiao Sun,Yicheng Wang,Ting Wang,Yutong Liu,Shengchen Wu,Boyu Liu,Yongqi Yang,Zhe Chen,Mengzhu Liu,Yongpeng Wang
A 3D BiFeO 3 /biomass carbon black/PVA aerogel was fabricated for integrated solar evaporation and PMS activation. • The optimized BCPA-3 achieved an evaporation rate of 3.15 kg m −2 h −1 under 1 sun and maintained stable desalination in 3.5 wt% saline water. • The BCPA/PMS system enabled tetracycline degradation with 65% removal and a rate constant of 0.02407 min −1 . • The coupling effect of porous structure, photothermal heating, and radical oxidation was elucidated for complex saline wastewater purification. Solar-driven interfacial evaporation represents a sustainable strategy for freshwater production. However, the simultaneous elimination of coexisting antibiotic pollutants remains a critical challenge. Herein, we report a robust, multifunctional composite aerogel (BCPA) fabricated via a freeze-casting strategy, integrating bismuth ferrite (BiFeO₃), waste green tea residue-derived biomass carbon black (CB), and polyvinyl alcohol (PVA). The optimized BCPA-3 features a hierarchical three-dimensional (3D) porous architecture that ensures rapid water transport (infiltration time: 7.0 s) and broadband solar absorption. Consequently, the evaporator achieves a high evaporation rate of 3.15 kg m −2 h −1 under 1 kW m −2 irradiation and maintains a rate above 2.6 kg m −2 h −1 in 3.5 wt% brine, demonstrating exceptional salt-rejection stability. The produced condensate meets WHO and EPA drinking water standards with major ion concentrations reduced to negligible levels. Beyond desalination, the BCPA-3 system exhibits superior catalytic activity in activating peroxymonosulfate (PMS) for tetracycline degradation, achieving 65% removal efficiency with a rate constant of 0.02407 min −1 . Mechanism investigations reveal that the degradation is dominated by a radical pathway involving SO₄· − , ·OH, and O₂· − species. Collectively, this work presents a novel material design paradigm that synergizes solar steam generation with advanced oxidation processes, offering an integrated solution for seawater desalination and antibiotic wastewater remediation. Download: Download high-res image (178KB) Download: Download full-size image
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ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Xinming Wang,Weichang Xie,Zichen Wang,Haonan Zhang,Jia Li,Xingjian Gao,Dingjie Zhou,Huaiyu Jiang,Shixing Huang,Qiang Zhao,Xiaofeng Ye
Repairing anisotropic tissues such as the myocardium requires implanted cells to organize into highly ordered structures. However, achieving controlled cell alignment remains a major challenge for current cell delivery patches. Here, we develop a magnetically aligned, fiber-reinforced extracellular matrix (ECM) patch that directs anisotropic cell organization and supports stem cell implantation. Poly-lactic acid fibers containing Fe 3 O 4 are fabricated via electrospinning and controlled hydrolysis, and are aligned uniaxially within ECM hydrogels using an external magnetic field prior to gelation. The resulting ECM–fiber patches exhibit enhanced mechanical strength and reliably guide the alignment of cardiomyocytes, fibroblasts, and endothelial cells. A beating patch is also created by seeding human induced pluripotent stem cell-derived cardiomyocytes (iPSC-CMs). In a nude mouse myocardial infarction (MI) model, implantation of iPSC-CMs@ECM–fiber patches preserves cardiac function, reduces apoptosis, limits fibrosis, and enhances vascularization. Implanted iPSC-CMs demonstrate high viability and low immunogenicity. Molecular profiling reveals transient modulation of early inflammatory responses post-MI, probably mediated through IL-17, IL-3, and IL-1β pathways. Overall, the ECM–fiber patch provides a versatile platform for delivering highly organized cells for in vivo tissue repair.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Yongtang Wang,Lan Chen,Zhanfeng Zhou,Yuhan Liang,Tong Zhang,Rongbang Sun,Yueling Tian,Yang Liu,Yifu Fu,Huihan Wang,Guang Feng,Jianhua Miao,Xinhui Zheng,Kai Yang
This work fabricated FeOOH/arginine composite coatings firmly bonded onto Mg alloy substrates, which greatly enhanced the corrosion resistance of biodegradable magnesium implants. • The composite coating achieves NIR and TME dual-responsive controlled NO release, and the PTT-CDT-NO synergistic therapy suppresses core oncogenic signaling pathways to induce efficient osteosarcoma cell death, while low-concentration NO facilitates anti-inflammation and angiogenesis. • By utilizing the concentration-dependent bidirectional effects of NO, the constructed multifunctional coating offers a simple and low-cost design strategy for intelligent magnesium alloy implants toward clinical postoperative bone tumor therapy. Osteosarcoma is prone to recurrence after surgery and is accompanied by extensive bone defects. Traditional treatment methods struggle to achieve tumor suppression and bone repair simultaneously. Degradable magnesium alloys are ideal bone implant materials, yet they have drawbacks, including overly rapid degradation and a lack of anti-tumor activity. Although nitric oxide (NO) shows promise for its anti-inflammatory and regenerative properties, its clinical translation is limited by its short half-life and uncontrolled release, which do not meet the postoperative requirements for osteosarcoma. Herein, in this work, a porous PEO (plasma electrolytic oxidation) coating was first prepared on Mg alloys to improve corrosion resistance, and then Fe 2+ and L-arginine were simultaneously introduced to synthesize the FeOOH-Arg coating in situ, which was then coated with polydopamine to obtain a responsive composite coating. This composite coating achieved interfacial bonding and seals the PEO porous structure through covalent bonding, and can realize the controllable release of NO and reactive oxygen species (ROS) with near-infrared light irradiation and tumor microenvironment, not only synergistically combining the photothermal therapy (PTT) and chemodynamic therapy (CDT) to induce the apoptosis of osteosarcoma cells efficiently, but also regulate the immune microenvironment and promote angiogenesis both in vitro and in vivo. This work offers a novel, feasible, multifunctional modified magnesium alloy implant for integrated anti-tumor and bone-regeneration treatment following osteosarcoma surgery.
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ACS Photonics
·
2026
·
IF 6
Ou Lihao,Li Siqi,Wang Minge,Yu Hong,Zhang Ning,Wang Yichen,Li Fei,Zhang Youzhi,Kuai Yan,Liu Xue,Jiang Yuxuan,Zhen Shenglai,Hu Zhijia,Gao Yesheng,Yu Benli
Chiral fiber lasers, owing to their unique circularly
polarized
laser output, are crucial in frontier fields such as spin photonics,
quantum information processing, and high-sensitivity chiral sensing.
Current fabrication methods, relying on mechanical twisting or complex
multicore structures, are limited by poor torsional strain tolerance,
structural instability, and difficulties in achieving precise intercore
coupling. To address these bottlenecks, we propose and demonstrate
an innovative fabrication strategy using chiral supramolecular glasses
(SGs) as the optical fiber core material. This approach leverages
the intrinsic chirality of SGs to impart macroscopic chirality to
the fiber. By integrating high-performance gain dyes, we successfully
construct and characterize a chiral fiber laser. The readily designable
chiral motifs of SGs and their near-room-temperature glass transition
temperature simplify fabrication and enhance structural controllability.
The resulting chiral fiber laser stably emits narrow-line width circularly
polarized laser output with an asymmetry value ( g lum ) of approximately 0.31. This work establishes chiral
SG-based systems as a high-performance, highly designable class of
chiral laser gain media, paving a new technological path for next-generation
functionalized fiber lasers.
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ACS Catalysis
·
2026
·Vol. 16
·期 15
·14279-14290
·
IF 13.6
Zhang Haotian,Wang Yuhan,Wang Dashuai,Xu Shiqiang,Gao Xiaofeng,Ma Zixuan,Zhou Xian,Yang Yingjie,Hou Zepeng,Ding Chuanmin,Wang Junwen,Su Dong,Yao Siyu
The BO x overlayer, promoted by a subsurface metal promoter in the M@BO x core–shell configuration, exhibits high activity and selectivity in the low-temperature oxidative dehydrogenation of propane (ODHP). However, the inverse interfacial interactions between metal and the BO x overlayer remain incompletely understood. In this study, we present a bottom-up synthetic strategy for fabricating Ru@BO x inverse catalysts with tunable boron oxide overlayer thickness by varying CO 2 concentrations during the oxidation etching process. The results demonstrate a pronounced BO x shell thickness-dependence of the low-temperature ODHP performance of Ru@BO x /BN catalysts. The promotional effect of subsurface metal lies in enhancing the density of hydroxylated BO x active sites and modulating the electronic structure of the BO x overlayer via electronic interfacial interactions. The promotion is confined to the bottom few layers of BO x on Ru NPs and decreases rapidly with increasing shell thickness.
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ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Wang Caixiang,Chen Manfang,Wang Mengqing,Tang Qin,Peng Xuewen,Ye Yongjie,Jia Xiaofei,Hou Baojun,Shu Hongbo,Wei Diye,Duan Tengfei,Wang Xianyou
Lithium–sulfur batteries (LSBs) are a leading next-generation energy storage technology, owing to their high theoretical capacity and energy density. However, the lithium polysulfide (LiPS) shuttle effect and slow redox kinetics limit the cycling stability and rate capability of LSBs. To address this challenge, a layered Cu 7.2 S 4 uniformly embedded within a nitrogen-doped carbon (NC) matrix (Cu 7.2 S 4 @NC) is synthesized and employed as a functional coating on the separator. The NC framework establishes a conductive network that enhances the confinement of LiPSs. Meanwhile, Cu 7.2 S 4 serves as catalytic centers that significantly accelerate the redox kinetics of LiPSs, thereby boosting the overall electrocatalytic activity. Electrochemical evaluations reveal that the cell with the Cu 7.2 S 4 @NC separator exhibits outstanding cycling performance, maintaining 771 mAh g –1 after 500 cycles at 0.5 C. With a sulfur loading of 5.3 mg cm –2 , the cell achieves an areal capacity of 5.5 mAh cm –1 . The cells exhibit stable cycling performance across a broad temperature range (0–60 ° C). Furthermore, combined density functional theory calculations and in situ Raman spectroscopy confirm that Cu 7.2 S 4 exhibits strong binding affinity toward LiPSs, thereby enabling efficient sequestration of these species. This work demonstrates that Cu 7.2 S 4 @NC serves as a functional catalyst capable of enabling high-performance LSBs with broad temperature adaptability.
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PubMed
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