EUROPEAN POLYMER JOURNAL
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2026
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IF 6.8
Xiaoyu Zhang,Shanzhe Li,Yumeng Lu,Dongxuan Guo,Chunling Zhang
The inherent flammability and brittleness of EP limit its application in the industrial field. Therefore, it is of great importance to simultaneously enhance the flame retardancy and toughness of EP. In this work, metal ion-coordinated P/N synergistic flame retardants, named as PIFe and PIZn, were designed and synthesized to concurrently improve the flame retardancy and mechanical properties of EP composites. The results showed that the LOI value of EP/PIFe-5 and EP/PIZn-5 increased to 30.5% and 33.2%, reaching a UL-94V-0 rating. Compared with Pure EP, the pHRR and TSP of EP/PIFe-5 decreased by 41.4% and 26.3%, and those of EP/PIZn-5 decreased by 63.8% and 44.9%, respectively, demonstrating a significant improvement in flame retardancy and smoke suppression. Metal ions catalyzed the carbonization of EP, participated in the formation of the char layer at high temperature. Furthermore, the covalent and non-covalent interactions between the flame retardants and EP matrix significantly improved the mechanical properties of the EP composites. The tensile strength and impact strength of EP/PIZn-3 increased by 35.1% and 140.0%, respectively. Compared with EP/PIZn-3, the mechanical properties of EP/PIFe-5 and EP/PIZn-5 have declined to a certain extent, but they are still superior to those of pure EP. Overall, this work presents a method for synthesizing flame retardants based on phosphazene-metal coordination structure, which enables to prepare EP composites with excellent comprehensive performances.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Wengang An,Yuhua Niu,Xiangyu Yan,Chuchu Deng,Changhong Zheng,Benzheng Li,Xiaoxin Yang,Nan Li,Yuesuo Yang,Wei Fan
Nanoscale control of charge-flow pathways can enable multifunctional photocatalysis by decoupling fast reduction from selective oxidation. Here, we report an MXene-bridged urea-modified perylene diimide polymer (UPDI)/ZnIn 2 S 4 ternary photocatalyst, denoted as UPMZ-50 (UPDI/MXene/ZnIn 2 S 4 containing 50 wt% ZnIn 2 S 4 ) that realizes a bidirectional dual-Schottky charge-transfer topology. Structural and electronic characterizations reveal that metallic MXene forms back-to-back Schottky junctions with both UPDI and ZnIn 2 S 4 . This configuration generates two oppositely oriented interfacial electric fields at the semiconductor/MXene contacts, which direct photogenerated electrons from both semiconductors onto the MXene nanosheets. Consequently, this architecture separates electron-rich reduction domains on MXene from hole-rich oxidation regions on the semiconductors. This dual-Schottky architecture suppresses charge recombination and enables stable multifunctional photocatalysis. Under optimized conditions, UPMZ-50 delivers efficient H 2 O 2 production (987 μmol·g −1 ·h −1 , 76.3% selectivity) and 92.4% tetracycline (TC) removal, while also exhibiting an H 2 evolution rate of 10.0 mmol g −1 ·h −1 as a benchmark for reduction performance. Mechanistic investigations identify superoxide (·O 2 − ) as the dominant reactive oxygen species (ROS) and a key intermediate for H 2 O 2 synthesis. The in situ generated H 2 O 2 is subsequently activated to yield ·OH, and together, these ROS promote TC degradation. These findings highlight MXene-based dual-Schottky heterojunctions as a versatile strategy for tuning charge-flow regulation. This work offers a transferable blueprint for decoupling high-rate reduction from ROS-driven selective oxidation, thereby bridging the gap between efficient solar-fuel production and environmental decontamination.
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FOOD CHEMISTRY
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2026
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IF 10.4
Xiang Luo,Yang Wang,Man Zhou,Qiaolan Sun,Xue Wang,Xiaojie Yu,Li Chen,Hua Yang,Cunshan Zhou
Rebaudioside M is a desirable zero-calorie sweetener, but its low natural abundance limits industrial application. Here, enzymatic conversion of Rebaudioside D was intensified through host engineering, cascade biocatalysis, and substrate feeding. Expression of the glycosyltransferase in a eukaryotic host increased the soluble enzyme fraction from 18% to 92% and improved specific activity by 1.46-fold compared with the bacterial system. Coupling with sucrose synthase enabled in situ regeneration of the sugar donor from inexpensive sucrose. Kinetic analysis identified substrate depletion as the dominant bottleneck in batch reactions. A fed-batch feeding strategy increased the product titer to 28.38 g L −1 with 91.6% conversion, representing a 3.99-fold improvement over batch mode. This integrated strategy provides a practical basis for cost-efficient production of next-generation natural sweeteners.
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JOURNAL OF CHEMICAL THERMODYNAMICS
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2026
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IF 2.5
Wentao Zheng,Jialing Chen,Xinwen Zhang,Lu Xu,Qian Gu,Xianku Wu,Xuehua Zhang
The development of efficient, low-viscosity, and environmentally friendly solvents is essential for sustainable CO 2 capture. In this study, a series of ternary deep eutectic solvents (DEAz-DESs) were synthesized using 1,5-diazabicyclo[4.3.0]non-5-ene (DBN) as the hydrogen bond acceptor, and ethylene glycol (EG) along with various azoles as hydrogen bond donors. These DESs exhibited excellent physicochemical properties, including low viscosity (7.83–41.41 mPa·s at 40 °C) and high thermal stability ( T d = 112–133 °C). The low viscosities enabled rapid CO 2 mass transfer and absorption kinetics. Among them, the DBN/Pyrazole/EG (3:1:1) system demonstrated a high CO 2 uptake of 0.194 gCO 2 /gDES at 1 bar and 40 °C. Combined spectroscopic characterization and DFT calculations elucidated dual chemisorption mechanisms: carbamate formation through pyrazolate and carbonate formation mediated by DBN-activated EG, jointly accounting for the elevated CO 2 absorption capacity. Thermodynamic analysis yielded moderate absorption enthalpies (−38 to −63 kJ/mol), indicating favorable regeneration at mild temperatures. The DBN/Pyrazole/EG (3,1:1) DES retained over 90% of its absorption capacity after 10 cycles, demonstrating excellent reusability. Compared with other reported DESs, the DEAz-DESs presented in this work offer superior absorption performance and lower viscosities. These findings suggest that the ternary DBN/azole/EG systems are promising candidates for efficient and sustainable post-combustion CO 2 capture applications.
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FOOD CHEMISTRY
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2026
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IF 10.4
Chundi Yu,Ying Zhang,Zekun Ma,Ishfaq Ahmed,Tianjiao Xu,Qingli Yang,Liangtao Lv
Tropomyosin (TM), a major shrimp allergen, poses a significant challenge to food safety. This study aimed to develop a biosynthetic recombinant tropomyosin (rTM) as a standardized alternative to the natural tropomyosin (nTM) and to establish a sensitive detection method. Structural analyses using ultraviolet, fluorescence, and circular dichroism spectroscopies confirmed high similarity between rTM and nTM. Comparable allergenicity was further validated in a murine model. A novel lateral flow immunoassay (LFIA) employing Prussian blue nanoparticles (PBNPs) as probes was subsequently developed. This assay exhibited a wide linear range of 0.1–50 μg/mL and a low detection limit of 0.051 μg/mL, and excellent specificity, accuracy, and precision in spiked food matrices. This work establishes a foundation for developing nTM alternatives and provides a reliable, portable platform for sensitively detecting macromolecular food allergens.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Qianqian Chen,Meng Zhou,Yiwen Chen,Hongxia Xie,Jie Cai,Bing Li,Chunyu Chang
Cellulose nanofibers have attracted significant attention in the burgeoning field of humidity actuators. However, traditional cellulose nanofiber actuators were hydrophilic, which exhibited low water resistance and poor stability in practical applications. To address these issues, herein, we report a facile vacuum-assisted filtration strategy for fabricating rapid humidity/light dual-responsive actuators composed of 2D hydrophilic graphene oxide (GO) and 1D hydrophobic cellulose nanofibers (HCNF). Benefiting from the unique self-assembled “brick-mortar” lamellar structure and strong hydrogen bonding interactions between HCNF and GO, the resultant HCNF/GO films exhibited good mechanical performances in both dry and wet states, whose tensile strengths were 257.5 MPa and 144.8 MPa, respectively. By combining the water absorption and barrier effects of GO with the water desorption of HCNFs, the bending angles of HCNF/GO actuators achieved 180.0° (hydration process) and 262.3° (dehydration process) within 1.7 s and 24 s, respectively. These actuators with remarkable mechanical properties and rapid humidity/light dual-responsive performance could be used in various soft robotics, such as swallow wings, bandages, mechanical arms, and smart curtains. Our HCNF/GO actuators could convert natural humidity fluctuations and solar irradiation into mechanical energy, which has great potential in low-carbon, energy-efficient applications in the field of soft robotics.
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INDUSTRIAL CROPS AND PRODUCTS
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2026
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IF 6.4
Hongkun Xue,Haiyan Gao,Yaojie Liu,Bozhao Zhang,Jianqing Liao,Chuan Wang,Jiaqi Tan
Hangzhou chrysanthemum is a medicinal plant with food-related properties, and the hypoglycemic components of its natural polysaccharides and their related mechanisms are not yet fully understood. This paper purified the crude Hangzhou chrysanthemum polysaccharides (HCPs) via DEAE-52 and Sephadex-G150 column chromatography to finally obtain a major homogeneous polysaccharide fraction (HCPs-3-SG), and then the structure of HCPs-3-SG was characterized by HPGPC, FT–IR, GC-MS NMR, CD, TGA, etc. Finally, the α-glucosidase inhibitory mechanisms of HCPs-3-SG were investigated through comprehensive experiments and simulation methods. The results show that HCPs-3-SG with an Mw of 7.85 kDa consisted of Fuc (1.42 %), Rha (6.89 %), Ara (7.22 %), Gal (5.55 %), Glc (1.67 %), Xyl (2.09 %), Man (1.37 %), and Gal-UA (73.80 %). →4)-α- D -GalUA(6-OCH 3 )-(1→ and →4)-α- D -GalUA-(1→ was the primary chain of HCPs-3-SG. Moreover, HCPs-3-SG didn’t has a triple helix structure and contained microcrystalline structures, irregular fragments, and reticular segment structures. HCPs-3-SG presented a random linear chain, multi-branched structure, and spindle-shaped protrusions. Furthermore, HCPs-3-SG exhibited a strong inhibitory effect on α-glucosidase activity. The α-glucosidase-HCPs-3-SG complex remained stable in terms of RMSD, RMSF, and turnaround radius in the Gromacs simulation. HCPs-3-SG played a crucial role in the binding process with α-glucosidase by interacting with amino acid residues Tyr158, Phe303, Arg315, and Arg442.
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Sustainable Materials and Technologies
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2026
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IF 9.7
Qian Wang,Qiuchen Wang,Xuelin Zhang,Yuheng Zhang,Xinyue Chi,Weijian Yuan,Dianpeng Qi,Jianfeng Wu
Selective aerobic oxidation of thioethers to sulfoxides over efficient visible-light photocatalysts is an essential yet highly challenging transformation in catalytic oxidation chemistry. Herein, we introduce an asymmetric perylene diimide–based π-conjugated polymer (BCPDI) with intrinsic polarization that enhances charge transport and tunes the local microenvironment to efficiently regulate reactive oxygen species(ROS) generation for efficient thioether oxidation. DFT calculations show that symmetry breaking separates frontier orbitals and creates an internal electrostatic potential gradient, thereby accelerating charge carrier transport and driving O 2 reduction to generate superoxide radicals (·O 2 − ), whereas symmetric analogs produce only singlet oxygen ( 1 O 2 ) via energy transfer. Driven by the synergistic effect of electron and energy transfer pathways, BCPDI achieved over 99% conversion and selectivity for thioether oxidation under ambient conditions, outperforming most recently reported materials. In addition, BCPDI also exhibits a superior catalytic activity for thioether oxidation (e.g., aromatic thioethers, aliphatic sulfide, and Mustard Gas sulfide). This study provides a new approach for the design of catalysts for photocatalytic aerobic oxidation of thioethers and deepens the understanding of thioether activation mechanisms mediated by photogenerated charge carriers and reactive oxygen species.
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LANGMUIR
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2026
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IF 4.4
Cong Xiang,Fan Xue,Shunzong Wu,Juan Wang,Chenyu Yang,Yike Huang,Xiangzi Li,Meifang Wang,Xiaomei Cheng
Histidine-rich proteins (His-proteins) are vital biomolecules with diverse physiological roles. However, their purification from complex biological samples remains challenging. Here, we successfully prepared Ni/NixPy composite nanospheres with different phosphating degrees, featuring surface-exposing Ni2+ properties for efficient separation and purification of His-proteins. The phosphated products exhibited a spherical morphology, reduced cytotoxicity, and good biocompatibility. The optimal Ni/NixPy demonstrated excellent adsorption and separation capacity for His-tagged bovine hemoglobin (BHb), which is attributed to their Ni2+ surface-exposing capability and magnetic properties, achieving a adsorption capacity of 2130.4 mg/g under the tested conditions. While the adsorption sites for His-proteins are enhanced, the separation process is simplified. SDS-PAGE analysis confirmed the selective adsorption of Ni/NixPy for His-proteins in a BSA/BHb mixed solution. The Ni/NixPy spheres demonstrated good stability and recyclability, maintaining an 85% adsorption efficiency after five cycles. In addition, His-proteins can be efficiently separated and purified from complex fetal bovine serum. Therefore, this work reports an effective surface-exposing Ni2+ approach to enhance the efficiency of protein separation and purification with the potential to expand applications in diagnostics and therapeutics.
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Advanced Optical Materials
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2026
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IF 7.2
Xuetao Yan,Lifei Chen,Yuze Ren,Kaixuan Cui,Tianliang Li,Lixing Lin,Zeyu Li,Haicheng Song,Yingying Chen,Zhenzhen Li,Lingyan Feng
Circularly polarized luminescence (CPL) materials are highly sought after for their unique chiroptical properties, but their rational design remains challenging. To address this, a machine learning (ML) platform that intelligently screens deep eutectic solvents (DES) for crafting G-quartet-based gels with tailored CPL is established. An ML classifier trained on experimental data predicts CPL activity with 0.916 accuracy. SHapley Additive exPlanations (SHAP) analysis identifies key DES molecular descriptors, guiding the discovery of novel materials that exhibit a record-high luminescence dissymmetry factor (g lum ) of 0.222 for nucleotide-based systems and achieve chirality inversion via DES modulation. The Sure Independence Screening and Sparsifying Operator (SISSO) algorithm further yields interpretable design formulas. Leveraging the distinct polarization of these gels, we demonstrate a fourth-level anti-counterfeiting strategy, decrypting concealed information via Morse and ASCII codes to enhance information security. This ML-driven methodology accelerates the discovery of high-performance CPL materials and opens new design avenues.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
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IF 8.7
Yumei Hu,Yuhang Xu,Biyu He,Du Niu,Xuechun Yang,Jiaping Huang,Zhenzhen Xie,Panpan Shen,Xian Li,Maosen Bai,Ziwei Liu,Hao Li,Yunyun Yang,Jian-Wen Huang,Chun-Chi Chen,Rey-Ting Guo,Longhai Dai
Ochratoxin A (OTA) is a pervasive and significant mycotoxin that poses serious health risks to humans and animals. The development of efficient biocatalysts for the enzymatic detoxification of OTA is of great importance. In this study, we enhanced the OTA-degrading activity of three amidohydrolases (ADHs) by up to ninefold. This improvement was achieved by reducing steric hindrance in the binding pocket and fine-tuning the hydrophilic interactions between the enzyme and substrate. The most efficient variant, Pw ADH/DM, was immobilized onto magnetic Fe 3 O 4 nanoparticles functionalized by the co -deposition of dopamine and polyethyleneimine. Under optimal conditions, this immobilization process achieved a high immobilization efficiency (85.4%) and activity recovery (76.9%). The immobilized enzyme exhibited enhanced pH stability and thermostability, along with good storage stability, reusability, and recyclability. More importantly, the immobilized enzyme completely degraded 100 ng/mL OTA in contaminated milk without affecting the milk's properties. These findings expand our understanding of the molecular mechanisms governing substrate binding and catalysis in OTA-degrading ADHs. Furthermore, they provide a blueprint for enzyme-based OTA decontamination during food processing.
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MICROCHEMICAL JOURNAL
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2026
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IF 5.2
Huihui Zhang,Qi Kang,Xuwei Chen
Anthrax is a serious zoonotic disease caused by Bacillus anthracis and dipicolinic acid (DPA) is the key component and major biomarker of Bacillus anthracis, therefore the development of rapid and sensitive DPA detection method is crucial to ensure public safety. In present study, carboxyl-functionalized covalent organic framework TpPa-COOH was synthesized using 2,5-diaminobenzoic acid and 2,4,6-triformylphloroglucinol as the building blocks, then Eu 3+ was immobilized onto TpPa-COOH via coordination interaction to give the fluorescent composite TpPa-COOH@Eu 3+ of dual-emissions. The presence of DPA significantly enhanced the characteristic emission of TpPa-COOH@Eu 3+ at 616 nm attributed by the “antenna effect” between DPA and Eu 3+ , thus a ratiometric fluorescent sensor was developed for the sensitive DPA detection with a detection limit of 9.5 nmol L −1 . The ratiometric fluorescent sensor offered DPA detection with high accuracy and favorable selectivity. The practicability of fluorescence sensor was validated by detecting DPA contents in real water samples. This research not only proposes a sensitive fluorescence method for anthrax biomarker detection, aiding in the prevention of biological threats and disease spread, but also highlights the potential of COFs in developing efficient ratiometric fluorescent probes with self-calibration capabilities.
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