JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Mingzhe Chen,Sailing Zhu,Shaowei Wang,Weisheng Yang,Mingqiang Ye,Yihui Zhou,Shaohua Jiang,Shuijian He,Jingquan Han
Lignin-removed cellulose skeleton (CS) with porous structure and abundant oxygen-containing groups synergized with functional MXene is a promising strategy for constructing high-performance energy storage electrodes. However, the intrinsic instability of MXene under environmental conditions poses a significant challenge to the advancement of MXene-CS (MCS) electrodes. Herein, Polypyrrole@MXene-CS (PPy@MXene-CS, PMCS) electrodes with excellent antioxidant and electrochemical performances are developed by constructing PPy-encapsulated MXene on CS through impregnation and in-situ loading. The impregnated MXene is tightly bound to CS through hydrogen bonding interactions to form the homogeneous MCS conductive network. The in-situ encapsulated PPy not only strengthens the oxidation resistance of MXene, but also imparts the PMCS additional pseudocapacitance. Benefiting from the natural CS pore structure and the synergistic electrochemical energy storage materials, the PMCS electrode demonstrates an area capacitance of up to 2622 mF cm −2 (at 3 mA cm −2 current density) and without significant degradation after two months storage. The assembled quasi-solid-state symmetric supercapacitor exhibits the satisfactory area capacitance (2144.5 mF cm −2 at 3 mA cm −2 ), energy density (21.6 μWh cm −2 ) and cycling capability (93.2 % capacitance retention after 6000 cycles). This work presents a breakthrough strategy for fabricating high-performance and oxidation-resistant CS electrodes, paving the way for advanced energy storage technologies.
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高影响因子
GREEN CHEMISTRY
·
2025
·
IF 9.2
Tian Zhao,Pengcheng Xiao,Saiqun Nie,Jiangrong Yu,Shilin Peng,Jiayao Chen,Fuli Luo,Yi Chen
Aqueous zinc-ion batteries (AZIBs) face challenges such as Zn dendrite formation and poor cycle stability. Here, we report an ambient-temperature in situ growth strategy to fabricate a bacterial cellulose-metal organic framework composite separator (BC@UiO-66) for AZIBs. In this approach, UiO-66 (a Zr-based MOF) grows uniformly on BC nanofibers, forming a 95 μm-thick film with hierarchical porosity and abundant Lewis acid sites. The resulting BC@UiO-66 separator facilitates Zn2+ diffusion through interconnected nanochannels and promotes uniform Zn deposition, thereby suppressing dendrite growth. A Zn||Zn symmetric cell using BC@UiO-66 operates stably for over 2400 h at 1 mA cm−2 and a Zn||MnO2 full cell retains 162.98 mAh g−1 after 1000 cycles at 1 A g−1 with ∼100% coulombic efficiency. These results demonstrate the efficacy of MOF-cellulose composite separators in extending AZIB cycle life.
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LWT-FOOD SCIENCE AND TECHNOLOGY
·
2025
·
IF 6.6
Zuguo Song,Siyu Yao,Chengchun Wu,Jianli Yang,Jinge Shi,Wen Cao,Guangle Pan,Chen Hu,Yanran Wang,Lijuan Chen
This study aimed to investigate the synergistic effect of photothermal films comprising carbon nanoparticles (CNPs) and cellulose nanocrystals (CNCs) in extending the shelf life of kiwifruit. Herein, a novel nanocomposite was synthesized via photothermal synergism by introducing CNPs into CNCs using ultrasonic assembly methods and the resulting composition was mixed with a polyvinyl alcohol (PVA) matrix to develop PVA based films. Results showed that the optimal ratio of CNPs to CNCs was 1:4 for the CNP/CNC composites. The CNPs/CNCs composites mainly bonded through hydrogen bonds and exhibited favorable thermal stability. The mechanical strength of the PVA based films added with 0.2% CNP/CNC composites improved by 79% compared with that of pure PVA films. Water vapor permeability of PVA-based films added with 0.2% CNP/CNC composites reduced by 8%, consistent with the water contact angle results. Notably, the addition of CNPs/CNCs composites to PVA films achieved superior photothermal effects, with the temperature increasing to 76.2°C during 1 min of irradiation, which is 48% higher than that of pure PVA films. Moreover, the addition of CNPs/CNCs composite to PVA films effectively reduced the weight loss and maintained the hardness, pH, and total soluble solid content of kiwifruit during storage. The addition of the CNPs/CNCs composite also delayed the decay time of kiwifruit by 3 days, presenting a novel approach for fruit preservation.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Boya Yuan,Wei Li,Shibo Yu,Yu Ogawa,Pan Chen,Yiwei Li,Jinming Zhang,Minmin Liang
Nanozymes are nanomaterials designed to mimic the catalytic functions of natural enzymes, offering advantages such as enhanced stability, tunability, and scalability. Although precise control over the spatial arrangement of catalytic centers is essential for maximizing nanozyme activity, it remains a fundamental challenge in nanozyme design. Here, we present a supramolecular strategy to achieve molecular-level engineering of catalytic centers by grafting hemin onto monodisperse cellulose oligomers (MCOs). The crystallization-driven self-assembly of MCOs directs the spatial organization of hemin while preventing its detrimental aggregation. Systematically tuning of the cellulose chain length reveals that a degree of polymerization (DP) of 6 optimally balances supramolecular packing and increased availability of active sites, whereas shorter (DP1) and longer (DP20) chains compromise catalytic performance due to aggregation or decreased substrate binding affinity. Structural analyses reveal that chain-length-directed crystallization governs nanozyme morphology, aggregation behavior, and catalytic performance. Through this approach, we achieve an approximately 500-fold enhancement in catalytic efficiency over free hemin, while structural analyses elucidate the role of chain-length-dependent crystallization in governing nanozyme morphology and performance. This study establishes transferable cellulose-based supramolecular strategy for engineering high-performance nanozymes with broad applicability across diverse catalytic systems.
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PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2025
·
IF 12.5
Qiang Mu,Qiangli Zhao,Min Mao,Yao Liu,Jie Tao,Jiahao Kang,Wei Yong,Xinhai He,Jianhua Ma,Jianwei Li
Multi-stimuli-responsive actuators attract significant interest due to their flexibility and adaptability to complex environments. However, achieving controllable response directionality and complex programmable deformation remains challenging. In this study, a humidity- and UV–visible light-responsive base film was developed using cellulose nanofibrils (CNF)/polyvinyl alcohol (PVA) functionalized with 4-hydroxyazobenzene (Azo). An asymmetric multi-stimuli-responsive composite film was fabricated via sequential coating of a polyimide (PI)/lignin oligomer (LIG) blend solution onto this substrate, exhibiting excellent dual humidity-light responsive deformation. The PI/LIG coating demonstrated excellent compatibility with the substrate, endowing the composite with excellent photothermally driven deformation and enhanced thermal stability. Under near-infrared (NIR) irradiation (100 mW/cm 2 , 60 s), the irradiated surface reached a maximum temperature of 64.07 °C. The actuator exhibited a moisture response sensitivity of 0.206 cm −1 /%RH −1 , along with excellent reversibility and remarkable responsiveness to sunlight, LED light, and NIR light. The distinct interfacial composition and response gradients enabled controllable deformation directions under moisture and light stimuli. Furthermore, stimulus-driven 2D-to-3D structural transformations, including grasping, lifting, and hinge-like motions, were achieved through diverse patterning strategies. This work provides a rapid and scalable approach for developing programmable patterned actuators with sophisticated deformation capabilities based on sustainable carbohydrate-derived materials.
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高影响因子
Materials
·
2025
·Vol. 18
·期 18
·4413
·
IF 3.2
Yuhao Fang,Gaobo Lou,Qiang Wu,Xingguo Cheng,Yifan Chen
In this study, a green lubricating grease was prepared based on cellulose and epoxidized soybean oil (ESO). The cellulose extracted from the corn stover was functionalized using diphenylmethane diisocyanate (MDI), which enhances its compatibility and thickening ability in non-polar oil, and subsequently dispersed in ESO to form a stable gel-like bio-based grease. The functionalized surface of cellulose was characterized by FTIR, SEM, and XRD. And the rheological and tribological characteristics of the prepared bio-based grease were discussed. The superior lubricity and anti-wear properties of our bio-based grease are demonstrated by its lower friction and diminished wear relative to commercial lithium-based formulations. This work provides practical guidance for designing environmentally friendly grease for sustainable lubrication.
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PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Jiang Tan,Yongjin Fang,Kaicheng Wang,Miaomiao Wei,Zihan Zhang,Lei Wang,Shixuan Chen,Jingye Pan
Trauma from car accidents and other causes can result in severe bleeding and significant skin defects. Current biomaterials still face challenges in achieving rapid hemostasis to stabilize life-threatening conditions and subsequently promoting the complete repair of skin tissue. This study develops a carbon nanotube (CNT)-reinforced carbonized cellulose aerogel for managing fatal, uncontrolled bleeding and enhancing skin wound healing. These aerogels demonstrate high porosity with large pore sizes, appropriate hydrophilicity, and excellent shape recovery after compression. In vitro, the composite aerogels show good cytocompatibility and blood compatibility. Not only do they absorb substantial amounts of adhered red blood cells and platelets, but they also activate platelets. In vivo, the composite aerogels outperform clinically used gauze and gelatin sponges in hemostatic capacity in rat tail amputation and liver perforation hemorrhage models. Moreover, this work discovers that the photothermal effect of the composite aerogel could accelerate blood clot formation, enhance the mechanical properties of the formed clot. Additionally, they promote skin wound healing, achieving results comparable to the widely used commercial wound dressing, PELNAC. The appropriate temperature generated by the photothermal effect can promote the formation of a local blood supply. Overall, this composite aerogel presents a promising strategy for treating uncontrollable bleeding and promoting wound healing.
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高影响因子
Results in Chemistry
·
2025
·
IF 4.2
Houhuang Tao,Xue Yu,Lanqing Li,Maria De Los Angeles,Na Wang
Levofloxacin (LEV), a widely used quinolone antibiotic, persists in aquatic environments and is difficult to degrade. Its significant toxicity can exacerbate the spread of antibiotic resistance through environmental transmission, making it a pollutant that urgently requires attention. As a new type of porous adsorbent material, hydrogels offer abundant adsorption sites during the adsorption process, making them widely used in water pollution treatment. In the present work, sodium periodate was used to oxidize cellulose to synthesize easily modified diacetyl cellulose (DAC). Subsequently, hyperbranched polyamides (HBP) containing multiple amine groups were ammoniated and crosslinked with DAC. Hyperbranched ammoniated double aldehyde cellulose hydrogels (HBP-DAC@SA) featuring a three-dimensional porous structure were prepared. The microstructure of HBP-DAC@SA was analyzed to investigate the adsorption performance of HBP-DAC@SA on LEV pollutants. The effects of synthesis temperature, pH, and HBP-DAC dosage on the adsorption properties of LEV were investigated through orthogonal experiments. The adsorption capacity of HBP-DAC@SA for LEV reaches up to 216.72 mg·g −1 . The adsorption kinetics and adsorption isotherm data are consistent with the quasi-secondary adsorption model and the Langmuir isothermal adsorption model, respectively. Furthermore, the adsorption capacity of HBP-DAC@SA remained at 80 % of its initial capacity after 14 cycles of adsorption/desorption. HBP-DAC@SA is easily recyclable and exhibits excellent reusability. Consequently, it can serve as an effective adsorbent material for treating LEV pollution.
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CARBOHYDRATE POLYMERS
·
2025
·
IF 12.5
Wuyan Xu,Kun Liu,Jiaqing Chen,Junliang Liu,Siming Li,Hua Wang,Binghong Luo,Qingqi Meng
Bone regeneration is clinically challenging because vascularization, osteo-induction, and immune modulation are difficult to synchronize. Inspired by the native periosteum's bilayer architecture and multifunctional roles, we developed a wood-engineered Janus periosteum (EW-P-D@HACA-T) that integrates deferoxamine (DFO)-functionalized elastic wood (EW-P-D) with a bio-adhesive catechol-modified hyaluronic acid/tricalcium phosphate hydrogel (HACA-T). This construct mimics the anisotropic structure and compartmentalized functions of natural periosteum, providing dual support for angiogenesis and osteo-immunomodulation. EW-P-D maintains mechanical integrity and guides cell orientation, while sustained release activates the HIF-1α/VEGF pathway to enhance endothelial maturation and bone formation. Concurrently, the HACA-T composite hydrogel promotes osteogenic differentiation and polarizes macrophages toward an M2 phenotype, creating a pro-regenerative immune microenvironment. Furthermore, transcriptomic profiling revealed coordinated activation of p53, TGF-β, and ECM remodeling pathways, highlighting the scaffold's capacity to orchestrate tissue regeneration at the molecular level. In vivo evaluation using a rat skull defect model confirmed superior bone bridging, collagen deposition, neovascularization, and systemic biosafety. This study presents a structurally and functionally integrated wood-engineered periosteum substitute, demonstrating a paradigm shift toward engineered solutions that synchronize mechanical, angiogenic, and immunomodulatory cues for bone defect repair.
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PubMed
高影响因子
Journal of Macromolecular Science Part B-Physics
·
2021
·
IF 1.504
Chenmeng Zhou,Xuzhen Zhang
Acetylated cellulose nanocrystals (ACNC) were prepared by surface modifying cellulose nanocrystals (CNC) with acetic anhydride (AA). By adding ACNC into biodegradable poly(butylene succinate-co-butylene adipate) (PBSA), ACNC/PBSA composites were prepared via a melt blending method. The structure and morphology of the ACNC were analyzed by Fourier transform infrared (FTIR) spectroscopy, wide angle X-ray diffraction (WAXD) analysis, field emission scanning electron microscopy (FE-SEM) and contact angle measurements. The results showed that the CNC were successfully modified by acetic anhydride, while maintaining their original nanosize rod shape of CNC and showing obvious hydrophobicity. SEM images of the ACNC/PBSA composites indicated that the ACNC were homogeneously dispersed in the composites. With increasing ACNC content, the crystalinity, melt viscosity and decomposition starting temperature increased gradually. In addition, the tensile strength of the ACNC/PBSA composites showed a maximum value at a ACNC content of 3.0%, which was 26.3% higher than for pristine PBSA but the elongation at break was 20% lower than for pristine PBSA.
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高影响因子
Journal of Macromolecular Science Part B-Physics
·
2021
·
IF 1.504
Zhuodong Liu,Zhengguang Heng,Haoruo Zhang,Ji Zhou,Yang Chen,Mei Liang,Huawei Zou
A series of high comprehensive performance composite phase-change materials (PCMs) were designed and prepared by a physical blending and evaporation method. Cellulose nanofibers (CNF) were introduced as supporting materials to keep the shape of polyethylene glycol (PEG) stable during the phase-change process, and expanded graphite (EG) was used to synergize with the PEG to enhance the infrared thermal stealth performance. The comprehensive performance and structure–property relationships of the composite PCMs were investigated by means of various characterization techniques. The CNF30/PEG69/EG1 composite exhibited the best comprehensive performance: a high PEG melting enthalpy of 144.3 J/g due to a high crystallinity of the PEG, good thermal stability, a shape stabilization effect and superior IR attenuation performance. The EG was proved to be an effective supporting material which contributed to the enhancement of the crystallinity of PEG, and played an important role as a nucleating agent in the crystallization process of the PEG. The synergistic effect of PEG and the small amount of EG gave the composites excellent infrared stealth performance.
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CELLULOSE
·
2023
·Vol. 31
·期 2
·1115-1137
·
IF 5.7
Nie Yuan,Yan Ruyu,Li Mei,Li Shouhai,Lin Mingtao,Yao Na,Deng Tianxiang,Feng Xiao,Yang Xiaohua,Ding Haiyang,Xu Lina
To improve the flexibility, functionality and recyclability of ethyl cellulose (EC)-based film materials, firstly methyl-nadic-anhydride-modified ethyl cellulose (NEC) was synthesized from EC, and then epoxy castor oil (ECO) was prepared from vegetable oils. Next, a series of NEC/ECO supramolecular composite films were prepared via supramolecular recombination and epoxy ring-opening esterification. Then the molecular structure, shape memory, reprocessing, mechanical, thermal properties and other properties were analyzed in detail. The target products NEC and ECO showing excellent compatibility were successfully prepared, and relatively a few microholes existed on the fracture surface of NEC/ECO composite films. The addition of ECO significantly improved the flexibility of the composite films. The supramolecular composite films displayed relatively excellent thermal stability, and initial thermal decomposition temperature all above 300 ℃. Dynamic mechanical thermal analysis showed that the supramolecular structure of the composite systems was completely reconstructed and no obvious glass transition was observed. Under the action of transesterification catalyst, the reversible ester bonds and hydrogen bonds in the composite system endowed the material with superior shape memory property and excellent recyclability. This research can provide experimental basis and theoretical support for the development and application of functional cellulose-based materials.
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高影响因子
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