INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
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IF 8.7
Qing Chen,Sitian Wang,Jiarui Jiang,Lianwen Hu,Fuge Niu,Weichun Pan,Yanbo Wang,Xiaoxiang Han
To develop novel antibacterial agents, chitosan (CS) was converted into O -carboxymethyl chitosan (O-CMC), which was then reacted with perillaldehyde and perilla essential oil to synthesize Schiff base derivatives (P-CCSB and PEO-CCSB). Comprehensive characterization via FTIR, 1 H NMR, SEM, EA, XRD, DSC, TGA, and XPS verified the successful synthesis and structural features of these compounds. The derived carboxymethyl chitosan Schiff base (CCSB) exhibited superior antibacterial performance compared to CS and O-CMC, attributable to its reactive Schiff base moiety, nanoscale particle size, elevated cationic charge density, and improved water solubility. After 10 days of storage of large yellow croaker, the total volatile basic nitrogen (TVB-N) and total viable count (TVC) values of the PEO-CCSB group decreased by 10.30 mg/100 g and 1.31 lg (CFU/g), respectively, compared with those of the blank group. These results highlight PEO-CCSB as a promising antimicrobial coating for food preservation.
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FOOD CHEMISTRY
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2026
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IF 10.4
Yan Sun,Lichun Yang,Leilei Wang,Yi Hou,Qin Luo,Xinglong Tao,Min Xie,Yongjun Hu
Accurate and rapid detection of glucose is of great significance for food safety and public health. In this study, we developed an Fe 3 O 4 @COF@Au(GOx) substrate based on magnetic COF materials. This substrate exhibits excellent adsorption capacity, enzymatic activity, and surface-enhanced Raman scattering (SERS) enhancement effect. This substrate can trigger a color reaction of 3,3′,5,5′-tetramethylbenzidine (TMB) and a change in the signal intensity of SERS when glucose is present. The ethanol Raman signal is used as the ratio signal to achieve the dual detection mode of colorimetric - ratiometric SERS. The dual-mode detection method boasts extremely high sensitivity and excellent selectivity with limits of detection for glucose of 0.17 μM in colorimetric and 10.7 nM in SERS. The dual-mode detection method effectively combines the simplicity of colorimetric detection with the high sensitivity of SERS, providing a highly promising solution for the detection of glucose in practical applications.
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Green Chemical Engineering
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2026
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IF 11.9
Chuan-Bin Li,Ling-Yu Dong,Yi-Fan Wang,Guang-Ping Hao
Electrosynthesis of hydrogen peroxide (eH 2 O 2 ) offers a facile and environmentally benign synthesis alternative through selective two-electron oxygen reduction reaction (2e – ORR). Carbon-based nonprecious electrocatalysts are promising for 2e – ORR, however, its efficiency is often limited by low intrinsic activity and limited accessibility of catalytic sites. Here, we present a family of carbonyl rich carbon spheres with surface wrinkle structure, which was engineered to boost the activity for 2e – ORR and to enlarge its electrochemical active surface area. As compared to common O-doped carbon spheres, our materials with controlled surface wrinkles delivered a 10-fold enhancement of accessible active surface area. Extensive catalytic tests together with characterizations indicate carbonyl moieties are the predominant active sites for O 2 activation. In 0.1 M KOH electrolyte, the catalyst delivered the H 2 O 2 selectivity of > 97.5% over a large potential range from 0-0.67 V vs . RHE, which resulted in a H 2 O 2 production rate of 385 mmol/(g·h) at 0 V vs. RHE. This study provides a useful surface structure fine modulation method for the development of heteroatom-doped carbon electrocatalysts for selective H 2 O 2 synthesis.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Limin Gu,Ziyan Ren,Shuai Li,Renjie Song,Xueqing Qin,Yan Su,Haixia Wu,Linya Zhang,Fengxia Sun
The development of high-performance bio-based flame retardants is crucial yet challenging for polymers. This study designed and synthesized a fully bio-based multifunctional flame retardant (PLV) composed of phytic acid (PA), vanillin (Van), and l -lysine (L-lys). This flame retardant contains abundant phenolic hydroxyl groups, enabling covalent incorporation into the polyurethane backbone at low temperatures (55 °C). Through crosslinking chains, it ultimately forms a three-dimensional network structure, successfully creating a sustainable polyurethane material (PLWPU) that integrates flame retardancy, mechanical properties, and antimicrobial functionality. This system overcomes the limitations of traditional additive flame retardants, such as migration loss and reliance on fossil-based raw materials, while also avoiding the high energy consumption associated with high-temperature polymerization processes. Performance test results indicate that when the PLV content is 20%, the limiting oxygen index (LOI) of PLWPU-4 is 32.7%, achieving a UL-94 rating of V-0. It also reveals significant reductions in total heat release (THR), total smoke production (TSP), and peak smoke production rate (pSPR) by 34.27%, 63.41%, and 50.79%, respectively, compared to unmodified waterborne polyurethane (WPU). PLWPU-3 also exhibits a 36% antibacterial rate against Escherichia coli ( E. coli ). This work provides innovative insights for developing high-performance, multifunctional, and sustainable polymer materials, expanding the application potential of water-based polyurethanes in high-end coatings, biomedicine, and other fields.
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Materials Today Chemistry
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2026
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IF 7.4
Zhizhuo Liu,Hongqi Liang,Ao Qu,Wei Fan,Baozeng Sun,Shuqi Zhao,Yue Chang,Yuzhe Guo,Ziyi Wang,Yingnuo Liu,Jingmei Xu
In this paper, cationic MIL-101-NH 2 (C-T-MOF) was synthesized by modified MIL-101-NH 2 . In order to reduce the erosion of functional sites by OH − , the amino group on the MIL-101-NH 2 framework was modified with a trimethyl quaternary ammonium group to obtain a C-T-MOF metal-organic framework with greater spatial hindrance. Afterwards, Im-PPO was prepared by imidazole functionalized PPO, Im-PPO-x was obtained by grafting the cationic 1-allyl-3-methylimidazole chloride (AMIMCl). Subsequently, the series of Im-PPO-1/C-T-MOF-x% AEMs were constructed through a composite preparation process, utilizing C-T-MOF as the filler phase and Im-PPO-1 as the continuous phase. The structure of the composite membranes was characterized by FT-IR and PXRD, and the experimental findings illustrated that the composite membranes were successfully prepared. As demonstrated by the performance results, the conductivity of Im-PPO-1/C-T-MOF-1% composite membrane reached a maximum value of 0.153 S cm −1 (80 °C, 100% RH), and the tensile strength was 44.93 MPa. In addition, the Im-PPO-1/C-T-MOF-1% composite membrane can still reach 90.3% of the initial conductivity after being immersed in NaOH solution (1 M) at 60 °C for 720 h. The findings demonstrated that the composite membranes exhibited elevated levels of ionic conductivity, good tensile strength and alkali resistance stability. In conclusion, the cationic MIL-101-NH 2 (C-T-MOF) made a significant contribution to the enhancement of the overall performance of composite anion exchange membranes.
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CHINESE JOURNAL OF POLYMER SCIENCE
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2026
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IF 4.6
Han Yan-Chun,Li Fang-Shuo,Zhang Jian-Chao,Wang Quan,Yang Guo-Hui,Yu Miao,Wang Feng,Duan Yong-Xin,Zong Lu,Li Bo-Xiao,Zhang Jian-Ming
Silica aerogels (SAs) impart low density and excellent thermal insulation to polymer systems, yet incorporating hydrophobic SAs into aqueous rubber latex systems remains challenging owing to their poor dispersibility and potential to destabilize the latex. Although previous studies have dispersed SAs in aqueous poly(vinyl alcohol) (PVA), the stability of such dispersions and their effectiveness as bridging media for latex integration have not been thoroughly evaluated, which limits their practical application in latex compounding. This study systematically examined how the surface chemistry governs hydrolytic stability, interfacial behavior, and latex compatibility in PVA-assisted aqueous processing. Two hydrophobic SAs were prepared: ethoxy-modified SA (E-SA) and methyl-modified SA (M-SA). Both initially formed a homogeneous PVA slurry, but E-SA rapidly hydrolyzed its surface —OCH 2 CH 3 groups, releasing ethanol, becoming hydrophilic, and undergoing irreversible nanopore collapse. In contrast, M-SA maintains its structural integrity and hydrophobicity because its —Si(CH 3 ) 3 groups are highly resistant to hydrolysis. This divergence dictates the behavior during latex blending. The ethanol released from E-SA disrupts electrostatic and steric stabilization, inducing latex coagulation, whereas M-SA/PVA dispersions preserve colloidal stability across diverse latex systems. As a practical demonstration, M-SA-reinforced chlorosulfonated polyethylene (CSM) rubber latex composites show more than a 50% reduction in thermal conductivity while maintaining chemical resistance, enabling high-performance insulating protective gloves and coatings. This work establishes a critical link between aerogel surface chemistry and aqueous processing stability, providing a mechanistic foundation for the rational design of water-based rubber/silica aerogel composites and next-generation thermal insulation materials.
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CHEMICAL ENGINEERING SCIENCE
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2026
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IF 5.1
Bingqing Huang,Xiaoying Lin,Yifan Liu,Yuancai Lv,Chunxiang Lin,Liang Song,Jianhui Huang,Minghua Liu,Guifang Yang,Xiaoxia Ye
The escalating demand for nuclear energy, coupled with the finite nature of terrestrial uranium resources, necessitates the exploration of sustainable seawater uranium extraction. Here, we report the rational design and facile synthesis of a novel composite adsorbent, SCMPA-2/CF, for efficient and biofouling-resistant seawater uranium extraction. This adsorbent integrates collagen fibers (CF), derived from leather waste, with sulfonated conjugated microporous poly(aniline)s (SCMPAs). The composite was fabricated via a Buchwald-Hartwig coupling reaction, grafting sulfonic acid-functionalized SCMPA-2 onto the hierarchical porous structure of CF. The inherent hierarchical porosity of CF significantly accelerates mass transfer, while its surface amino groups provide anchoring sites for the functional SCMPA-2 particles. The strategically incorporated −SO 3 - exhibit a synergistic effect, achieving high-capacity U(VI) adsorption through combined electrostatic attraction and chemical chelation. Furthermore, the conjugated microporous poly(aniline) structure imparts antibacterial properties, ensuring long-term performance. Adsorption experiments demonstrate remarkable performance: over 90% U(VI) uptake within 30 min, a Langmuir maximum adsorption capacity of 642 mg g −1 , exceptional U(VI) selectivity with a distribution coefficient ( K d ) of 5.67 × 10 6 mL g −1 , and a substantial capacity of 3.14 mg g −1 retained after two weeks of continuous sea trials. The composite also exhibited strong antibacterial activity, with over 91% inhibition rates against E. coli and S. aureus . Notably, the estimated production cost is as low as 1.10 USD·g −1 , attributed to the utilization of cost-effective waste biomass. This work establishes a green, high-performance, biofouling-resistant, and economically viable adsorbent for seawater uranium extraction, offering a promising avenue for developing nuclear energy resources from waste biomass.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
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IF 8.7
Fangjun Wu,Juan Sun,Zheng Nie,Fujie Lai,Xudong Yang,Shaoyang Chen,Yang Wang
In the context of the ongoing normalisation of the SARS-CoV-2, the number of patients infected with the new coronavirus remains high on an annual basis. It is therefore imperative that individuals have access to rapid and cost-effective diagnostic tests. Conventional diagnostic tests,such as Reverse Transcription-Quantitative Polymerase Chain Reaction(RT-QPCR), Enzyme-Linked Immunosorbent Assay(ELISA) are costly and cumbersome, impeding their application in single-sample detection. This study has developed a cost-effective lateral flow immunoassay that rivals the sensitivity and simplicity of ELISA and colloidal gold tests, facilitating rapid and affordable detection of SARS-CoV-2 antigen. The synthesis of Fe 3 O 4 particles with a diameter of approximately 150 nm was initially conducted via a solvothermal method. Subsequently, the preparation of Fe 3 O 4 @PMAA particles with carboxyl groups, was undertaken through a reflux precipitation polymerization. Finally, the above particles were coupled with mouse anti-coronavirus SARS-CoV-2 N protein IgG by standard NHS/EDC methods to obtain Fe 3 O 4 @PMAA@IgG nanoprobe. This nanoprobe was then used as an immunoconjugate pad for the detection of the SARS-CoV-2 nucleoprotein. The nanoprobe-based method demonstrated significant advantages in cost-effectiveness and timeliness (with an assay duration of only 1 min), costing approximately $0.13 per sample. When used for SARS-CoV-2 antigen detection, this cost represents only 0.02% of that of RT-QPCR and 0.05% of that of ELISA.The detection limit of the lateral flow immunoassay is (0. 5 ng/mL).
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Zhigang Wang,Shijie Xu,Wenjie Yang,Xiangjin Kang,Xi Chang,Wenyan Zhang
The aim of this investigation is to enhance the comprehensive performance of a WNiFe high-density alloy by employing a novel composite process combining CeO 2 doping and cyclic heat-treatment. Different microstructural features that have been focused on are grain refinement, dispersed CeO 2 particles, and phase boundary cohesion. A 93WNiFe alloy prepared through the powder metallurgy route using high-energy ball milling and mechanical alloying was imparted a two-step sintering and cyclic heat-treatment to obtain a microstructure comprising finely dispersed CeO 2 particles within the matrix that reinforces the tungsten grains. While the CeO 2 doping influences the densification and grain refinement of WNiFe alloys, the cyclic heat-treatment is also expected to play a significant role in microstructural homogenization and stress relief. The effect of the composite process on the microstructure and mechanical properties of the alloy was studied. It is observed that appropriate CeO 2 doping effectively promotes sintering densification, refines tungsten grains, and enhances interfacial bonding. The application of cyclic heat-treatment further optimizes the microstructure and eliminates internal stresses, thereby synergistically improving the overall properties. In this work, the effectiveness of this composite process in simultaneously improving the strength, ductility, and toughness of W-Ni-Fe alloys has been confirmed, and the related strengthening mechanisms have been analyzed, providing a new approach for the development of a new generation of high-performance tungsten-based alloys.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Ziyang Zhu,Nan He,Qicheng Chen,Yingjin Zhang,Bingjian Nie,Yanda Su
Layered double hydroxides (LDH) have shown great potential in the field of high-energy-density supercapacitors, but their poor electron transport capability and limited active sites have restricted their development. In this study, a NiCoMoMnZn-LDH/MXene-10 % (HE-LDH/M-10 %) composite material featuring a three-dimensional network heterogeneous structure was successfully synthesized through the integration of nano-etching and electrostatic self-assembly techniques. By adjusting the energy band structure of the high-entropy heterojunction, the composite material exhibited conductive properties close to those of metallic materials. Meanwhile, the interlaced layered structure provided additional space for charge storage. This electrode material demonstrates an exceptionally high specific capacitance (reaching 2412.7 F·g −1 at a current density of 0.5 A·g −1 ) and remarkable cycling stability (with a retention rate of 94.3 % after 8000 cycles), surpassing most high-entropy electrode materials reported to date. The hybrid supercapacitor constructed with this positive electrode can achieve a maximum energy density of 82.7 Wh·kg −1 , indicating significant application potential. Moreover, this study elucidates the electrochemical enhancement mechanism of high-entropy heterojunctions through comprehensive experimental investigations and density functional theory (DFT) calculations. This research proposes a novel concept for advancing high-energy-density supercapacitors.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Zina Zhang,Kaiyue Fan,Tengda Shi,Tong Hao,Jiaqi Li,Yanan Yang,Yu Bian,Hong Zheng
The key to removing and detecting trace Hg (II) in water is to achieve rapid adsorption and high adsorption capacity of the adsorbent while maintaining the simplicity and safety of the adsorbent preparation process. Herein, we report a post-modification of covalent organic frameworks by medical antidote dimercaprol (DMC-COF) for efficacious removing and detection on trace Hg (II) in water. The as-prepared DMC-COF showed excellent selectivity to trace Hg (II) and fast adsorption dynamics, which was attributed to the abundance of sulfhydryl and hydroxyl sorption sites in the COF mesopores and on the COF surface. The effluent concentration of Hg(II) coexisting with Ca(II) reduced from 30 μg·L −1 to the permissible limit (1 μg·L −1 ) of potable water standard within 30 s. The sorption equilibrium was achieved during 3 min and the adsorption rate reached over 98 %. The material also showed a wide applicable pH range (3.5–9.5), excellent regeneration feasibility and selectivity of Hg(II) coexisting with a wide range of heavy metals in tap water, and the effluent concentration of Hg(II) coexisting with trace of As(V), Cr(VI), Cd(II) and Pb(II) could reduce from 30 to 0.19 μg·L −1 during 10 min. Moreover, Hg(II) of 3, 6, 10 and 30 μg·L −1 in tap water could be achieved to meet the WHO standard within 1 min. Meanwhile, its conjugated framework could be used as a signal sensor for rapid testing for low concentration Hg(II) in water, with a fluorescence detection limit of 1.06 mg·L −1 . DFT calculations yielded the optimized structure of DMC grafted onto COF-V, revealing that Hg²⁺ and Hg(OH)₂ primarily adsorbed at the -S and -SH sites, predominantly through van der Waals interaction, whereas Hg(OH)⁺ mainly adsorbed at all the -S, -SH and -OH sites, governed by notable attraction.
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JOURNAL OF ENVIRONMENTAL MANAGEMENT
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2026
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IF 9.2
Congcong Zhang,Mei Hong,Bi Zhao,Yunhang Jin,Jiafeng Zhu,Benying Liu,Xiaojian Zhou,Yin Zhang
The development of sustainable and efficient systems for the complete degradation of organic pollutants under mild conditions remains a major environmental challenge. Conventional Fenton systems often rely on externally supplied H 2 O 2 , which introduces storage and transport risks as well as additional operational costs. In this work, a polypyrrole-decorated resorcinol-formaldehyde microsphere (PPy/RF) photocatalyst was rationally constructed via in-situ oxidative polymerization to integrate photocatalytic H 2 O 2 generation and photo-Fenton oxidation within a single platform. The donor-acceptor (D-A) interfacial structure formed between PPy and RF effectively broadens visible-light absorption, accelerates charge transfer, and facilitates efficient in-situ H 2 O 2 formation. More importantly, the generated H 2 O 2 directly participates in the photo-Fenton process with Fe 3+ /Fe 2+ redox cycling, leading to the continuous generation of highly reactive hydroxyl radicals (·OH) and superoxide radicals (·O 2 − ). Under visible-light irradiation, the optimized PPy/RF-0.07 exhibited a markedly enhanced H 2 O 2 production rate (727.56 μM h −1 ) due to the D-A interfacial structure between RF and PPy promotes oxygen reduction reaction (ORR) and water oxidation reaction (WOR). Subsequently, it achieved an outstanding degradation efficiency (>99%) toward phenol, dyes, and antibiotics, outperforming conventional systems that require external H 2 O 2 dosing. This superior performance originates from the synergistic effects of enhanced interfacial charge separation, in-situ H 2 O 2 self-supply, and photo-Fenton-driven radical oxidation. This work demonstrates a self-sustaining photo-Fenton-like system that eliminates the dependence on external oxidants, offering a new insight for solar-driven advanced oxidation processes and sustainable wastewater treatment.
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