FOOD CONTROL
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2026
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IF 7
Rui Chen,Yiwen Xie,Yunyan Bai,Kerang Huang,Xuemei Liao,Yulin Liu,Rong Wang
Microbial contamination leading to food spoilage necessitates the development of food packaging films with both monitoring and sterilization functions. In this study, we developed a dual-functional film named Anthocyanin/Alizarin-hypocrellin B (ATH/ALI-HB) that simultaneously integrates freshness monitoring, sterilization, and data-driven freshness evaluation within a single platform. By integrating bacterial cellulose with polysaccharides, the ATH/ALI-HB film substrate effectively overcomes the intrinsic brittleness of pure bacterial cellulose films. Incorporating various pigments, the film exhibits sensitive pH-dependent color changes for freshness monitoring. Specifically, the ATH/ALI-HB film's change from brown to purple signals the onset of the spoilage process, and it successfully delays meat spoilage until day 10. Photosensitizers incorporated into the film improve sterilization efficiency, as demonstrated by the ATH/ALI-HB film's ability to reduce Listeria monocytogenes populations from 10 6 CFU/mL within 15 min due to the production of reactive oxygen species (ROS). Additionally, a one-dimensional convolutional neural network (1D-CNN) model based on Raman spectrum was proposed to make a more precise judgment of the freshness of meat, enabling fully accurate (100%) classification of meat freshness states. This work presents a novel strategy for intelligent food packaging, in which material design, monitoring, sterilization, and artificial intelligence–assisted sensing are seamlessly integrated, paving the way for future advancements in food packaging technology.
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JOURNAL OF MEMBRANE SCIENCE
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2015
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IF 5.056
Pan Wang,Jianqiang Meng,Mingli Xu,Tao Yuan,Ning Yang,Tian Sun,Yufeng Zhang,Xianshe Feng,Bowen Cheng
Cellulose membrane has been widely used for bioseparation and blood purification but suffers from fouling issue and insufficient biocompatibility. Surface grafting of zwitterions onto membrane surface can effectively alleviate this issue. Current grafting methods are mostly based on free radical polymerizations and have limitations of multi-step process, the requirement of inert atmosphere and inevitable flux decline. Herein we put forward a simple method for cellulose membrane (CM) zwitterionization. The modification was carried out via a one-step method based on the alkoxysilane condensation reaction using three silane coupling agents including (3-carboxypropylbetaine-propyl)-trimethoxysilane (CPPT), (3-sulfopropylbetaine-propyl)-trimethoxysilane (SPPT), and (3-sulfobutylbetaine-propyl)-trimethoxysilane (SBPT). Membrane surfaces were characterized by ATR-FTIR, XPS , SEM, water contact angle (WCA) and streaming potential. Membrane mechanical performance, pore size and its distributions were measured. The antifouling property, hemocompatibility and cytocompatibility of the membranes were evaluated by protein adsorption, platelet adhesion, cell attachment and MTT assay experiments. The results show that sulfobetaines and carboxybetaines were successfully grafted on the CM surface. The obtained zwitterions-grafted membranes show excellent resistance to protein adhesion, platelet adhesion and cell attachment. More importantly, the biocompatibility of the CM membrane was retained.
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Gels
·
2026
·Vol. 12
·期 4
·333
·
IF 6.4
Panpan Feng,Jianguo Lin,Yan Ran,Yingying Zhang,Jiaxin Xu,Yuxin Cheng,Yuanyuan Liu
To address inherent limitations of chitosan-based edible films, including inadequate mechanical strength and poor moisture resistance, cellulose nanofibers (CNF) were employed as a synergistic film-forming component to partially substitute chitosan in the fabrication of ternary composite films (denoted as CSTF-CNFs). This approach was based on a previously developed chitosan matrix modified with tannin-Fe 3+ nanoparticles (TF). It was hypothesized that CNF could function as a reinforcing scaffold to improve the dispersion of TF within the film matrix and, through hydrogen bonding and physical entanglement, form an interpenetrating fiber network with chitosan, thereby enhancing the structural and barrier properties of the films. The present study systematically evaluated the influence of varying CNF substitution ratios (0–30%) on the physicochemical characteristics of the resulting composite films and their performance in tomato preservation. The results demonstrated that an appropriate CNF incorporation facilitated the formation of a dense, cross-linked network with chitosan and TF via hydrogen bond interactions, significantly improving both mechanical strength and water resistance. Among all formulations, the CSTF-CNF20 film exhibited optimal comprehensive performance, achieving the highest tensile strength of 27.60 MPa. Moreover, its swelling ratio markedly decreased from 675.5% (CSTF-CNF0) to 120.9%, while the water contact angle increased to 113.7°, and the DPPH radical scavenging activity remained above 85%. Tomato preservation assays revealed that, in comparison with the untreated control and polyethylene film-wrapped groups, the application of CSTF-CNF20 coating effectively mitigated the decline in weight loss and firmness, preserved surface color integrity, and resulted in the highest L* value alongside the lowest soluble solids content. These findings suggest that the synergistic integration of CNF with nano-scale metal–phenolic networks offers a viable strategy for developing high-performance chitosan-based edible films. The CSTF-CNF20 composite film holds significant promise for application in the postharvest preservation of fruits and vegetables.
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PubMed
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
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2026
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IF 6.4
Xinyi Shao,Ting Wu,Chao Liu,Mengke Zhao,Bo Geng,Haifeng Zhu,Long Liang,Jian Wang,Yongjun Deng,Guigan Fang,Pedram Fatehi
Cellulose-based adsorbents offer sustainable alternatives to petroleum-derived ion-exchange fibers for dye wastewater treatment. However, existing cellulose derivatives face an inherent trade-off: introducing sufficient cationic groups to achieve high adsorption capacity inevitably causes excessive swelling and structural deformation, compromising filtration performance. Here, we report a bifunctional cellulose fiber (BCF) that overcomes this limitation through integrated phosphate esterification and carboxymethylation. The phosphate groups serve a dual role—providing additional cation-exchange sites (2.09 mmol·g⁻¹) while forming an internal crosslinked scaffold (confirmed by ³¹P NMR) that suppresses swelling and preserves fiber integrity. The resulting BCF exhibits exceptional methylene blue adsorption capacity (1243.96 mg·g⁻¹), exceeding its theoretical ion-exchange capacity. The molar ratio of adsorbed dye to anionic sites (1.095 > 1.0) and Sips heterogeneity parameters (1/nₛ = 0.7268–0.8324) confirm synergistic adsorption mechanisms involving electrostatic interactions, hydrogen bonding, and dipole-dipole forces. Crucially, the crosslinked scaffold enables the BCF nonwoven filter to achieve a rapid filtration rate (31.85 m³·m⁻²·h⁻¹) and maintain > 98% removal efficiency after four regeneration cycles without requiring glass fiber blending. This work establishes a molecular design paradigm resolving the capacity-stability conflict in cellulose adsorbents, advancing sustainable biomass for practical wastewater treatment.
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SEPARATION SCIENCE AND TECHNOLOGY
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2026
·
IF 2.5
Jialong Yuan,Xu Zhang,Congcong Zhao,Fengjiao Bai,Hao Yan,Jin Li,Zhenyu Zuo
A novel molecularly imprinted polymer(Esc-SMIPs) with specific selectivity for esculetin (Esc), was synthesized in this work. Dehydroabietic acid [2-(acryloyloxy) ethyl] ester (DAAEE) and 4-vinylpyridine (4-VP) were utilized as bifunctional monomers, and porous cellulose microspheres derived from traditional Chinese medicine residue were employed as the carrier. The polymer was characterized by FT-IR, SEM, BET, TEM, and TGA. Experimental results demonstrated that the Esc – SMIPs prepared by these bifunctional monomers exhibit higher adsorption capacity (37.12 mg/g) and a superior imprinting factor (2.55) compared with the SMIPs derived from other monomers (PS, AA, 4 - VP, AM and DAAEE). In addition, Esc – SMIPs were applied as the solid – phase extraction filler for the selective identification and separation of Esc from Cortex fraxini extract. The concentration of Esc in the eluent (70% ethanol) was found to be significantly higher than that in the Cortex fraxini extract. The recovery rates of spiked samples for Esc were in the range of 98.06% − 101.93%, with relative standard deviation (RSD) values below 1.86%. When compared with macroporous adsorption resin D101 or Esc – SNIPs, excellent targeted enrichment and high separation efficiency for Esc are possessed by Esc – SMIPs.
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Journal of Engineered Fibers and Fabrics
·
2026
·
IF 2.6
Haoyu Zhou,Rongyu Sun,Yice Sun,Hao Wang,Nini Feng,Yuhong Li,Xiaoyin Wang
This study focuses on xanthated cellulose fiber (XCF), a precursor of cellulose nanofiber (CNF), innovatively integrates orthogonal experiments, two-factor analysis of variance, stepwise regression, and particle swarm optimization to systematically analyze and precisely control its degree of substitution (DS). Based on a three-level four-factor orthogonal design and supplementary tests, a quadratic nonlinear regression model with R2 = 0.9214 was established using 29 datasets, confirming the model’s significance. Carbon disulfide (CS2) dosage was identified as the most influential factor, and all six interaction terms were statistically significant. The optimal process parameters obtained via particle swarm optimization were: NaOH concentration 7.47%, alkali treatment time 4.38 h, CS2 dosage 0.53 mL, and xanthation time 2.74 h. A verification experiment under these conditions yielded a DS of 0.972, with only a 2.8% deviation from the predicted value. This study provides a precise and controllable pretreatment strategy for the efficient and low-energy preparation of CNF, demonstrating significant potential for industrial application.
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高影响因子
ACS Applied Polymer Materials
·
2026
·
IF 5.2
Zhou Zhou,Ce Zhao,Xinxin Yan,Lukuan Guo,Shilong Yang,Zhen Chen,Junlong Song,Jiaqi Guo
This work demonstrates a regioselectively designed cellulose derivative that enables colorless liquid-crystal-based anticounterfeiting with polarization-dependent readout. To overcome the intrinsic visibility and color dependence of conventional optical anticounterfeiting technologies, the hydroxyl group at the C6 position of cellulose was first selectively protected with trityl chloride, followed by ring-opening etherification of the C2 and C3 positions with propylene oxide to yield structurally defined 6-triphenylmethyl-2,3-hydroxypropyl cellulose (6T-HPC). A systematic comparison between 6-triphenylmethyl cellulose and its hydroxypropylated derivatives reveals that 6T-HPC retains liquid-crystalline ordering while completely suppressing visible structural color, thereby achieving an effective decoupling of liquid-crystal optical response from photonic-crystal coloration. Due to this unique optical behavior, a colorless liquid-crystal anticounterfeiting label was fabricated. The label remains fully transparent and invisible under ambient light, yet displays predefined patterns and optical textures when viewed under polarized conditions, enabling a “covert storage-polarized readout” mode of information encoding. This work demonstrates a precise molecular design strategy for tuning the optical functionality of cellulose derivatives and establishes a new route toward sustainable, high-security, and difficult-to-replicate colorless anticounterfeiting materials.
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JOURNAL OF HAZARDOUS MATERIALS
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2026
·
IF 10.6
Ruoxi Nie,Somia Yassin Hussain Abdalkarim,Bunan Wu,Haibin Ji,Chaopei Chen,Haicheng Huang,Hou-Yong Yu
Petroleum-based plastics are a significant source of global environmental pollution due to their non-biodegradability. Polylactic acid (PLA), a bio-based and biodegradable polymer, appears to be a promising alternative. However, PLA’s slow degradation rate and formation of persistent residues limit its practical application in agriculture. PLA breakdown can be accelerated by designing stable catalysts, such as through immobilization strategies. Enzyme supports can microregulate the surrounding microenvironment, thereby enhancing enzyme–substrate interactions. Herein, we first design an enzyme–cellulose nanocrystal interface to regulate the microenvironment for the degradation of polylactic acid (PLA) films. By grafting Proteinase K (ProK) onto carboxylated cellulose nanocrystals (HSCNC) and incorporating the resulting Pro-HSCNC into PLA matrix, a composite (PCPro) was developed that demonstrates enhanced crystallinity and mechanical strength while preserving ProK enzymatic activity. The Pro-HSCNC not only introduces multiple degradation sites effectively but also enhances water retention and microbial growth, thereby actively managing the local environment to enable faster, controlled degradation. As a result, PCPro reaches up to 29.5% degradation in soil within 120 days while also supporting plant growth, surpassing most PLA composites in degradation performance. Life cycle assessment (LCA) of PCPro shows a significantly lower environmental impact compared to conventional PLA. This work introduces a new approach for designing enzyme-active bio-polyester-based materials with programmable degradation behaviors through enzyme–cellulose interfacial interaction.
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BIOMACROMOLECULES
·
2026
·
IF 5.9
Xichen Yu,Tingxue Li,Xinyi Hou,Hongmei Qin,Zhuqun Shi,Chuanxi Xiong,Quanling Yang
Biobased thermal insulation textiles are attractive for passive body temperature regulation, whereas current fillers and coatings remain relatively thick, fossil-derived, and insufficiently biocompatible. Inspired by down feathers, a biobased cellulose/chitin coaxial cryogel fiber (CCF) was fabricated by wet spinning followed by freeze-drying. The CCF comprises a triple-barrier structure consisting of a microporous regenerated cellulose sheath, a trapped-air interfacial layer, and a nanoporous chitin core, which collectively suppress heat transfer. The regenerated cellulose sheath provides sufficient strength and flexibility for weaving into fabrics. With similar thickness and lower areal density, CCF fabrics exhibit a low thermal conductivity of 0.033 W m–1 K–1 and outperform fabrics made from single-component regenerated cellulose or chitin cryogel fibers. They also show better thermal insulation than the representative commercial textiles tested in this study under both high- and low-temperature conditions. This strategy provides a potentially scalable route to biobased thermal insulation textiles without supercritical drying.
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PubMed
高影响因子
GREEN CHEMISTRY
·
2026
·
IF 10.6
Lingxian Kong,Zitong Wang,Mingshuai Guo,Xiaofeng Sui,Zhiping Mao,Bijia Wang,Liduo Rong,Xueling Feng
The development of high-performance and recyclable materials from renewable resources remains a significant challenge in polymer science. Vitrimers, featuring dynamic covalent crosslinked networks, offers an attractive platform to harmonize mechanical robustness with reprocessability. Herein, we report a fully bio-based vitrimer fabricated through a catalyst-free dynamic crosslinking of cellulose acetoacetate (CAA) with a plant oil derived diamine (Priamine 1075). The resulting cellulose-Priamine (CP) vitrimer network incorporates enamine bonds that enable catalyst-free topology rearrangement under thermal activation. Hot-pressed CP films exhibit a balanced combination of tensile strength (30 MPa) and ductility (21% elongation at break), along with rapid stress relaxation (characteristic relaxation time of 3 min at 160 °C). Notably, the material retains >90% of its mechanical properties after multiple hot-pressing cycles, and demonstrates controlled degradability under biologically relevant conditions (8 week, >90%). Moreover, the acid-responsive character of the enamine bonds unlocks a powerful, sustainable, and low-energy route to micropatterning, enabling the precise, on-demand creation of intricate microscale features through simple acid etching. This work not only presents a novel strategy for designing robust, recyclable cellulose-based materials, but also provides valuable insights into the molecular engineering of bioderived dynamic networks for sustainable advanced applications.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Zhiwei Tang,Jilun Guan,Shaoqiu Ke,Qi Gong,Yulin Jia,Qi Liu,Minqi Liu,Yalan Li,Fangchao Cheng,Yiqiang Wu
Efficient harvesting of low-grade waste heat is crucial for global sustainable energy development. The ionic thermoelectric (i-TE) materials, operating on the ionic thermodiffusion (Soret effect), have attracted significant attention due to their high thermopower. However, their inherent intermittent operation mode limits energy harvesting efficiency and severely hinders practical applications. Inspired by the natural water and ions transport structures within trees, this study develops an i-TE material, (LCP/KI) i-TE, using lignocellulose (LC) as a three-dimensional framework and polyvinyl alcohol/potassium iodide (PVA/KI) as the electrolyte. Leveraging the unique aligned porous structure of LC, this material successfully combines the Soret effect with water-driven ion transport for the first time, achieving reciprocating migration of ions under a constant temperature difference. This biomimetic ion reciprocating migration strategy not only enables the (LCP/KI) i-TE to achieve a high ionic Seebeck coefficient of 35 mV K −1 under small temperature differences (<1 K), but also overcomes the core bottleneck of conventional ionic thermoelectric capacitors (i-TECs)—the necessity for intermittent operation due to ion polarization saturation. This innovation transforms the operation mode from a conventional four-stage cycle (with only two productive stages) into a simplified two-stage mode that continuously outputs power throughout the entire process. The assembled (LCP/KI) i-TEC operates stably with a permanently connected external circuit and can power electrical appliances such as light-emitting diodes (LEDs) and small calculators. This ion reciprocating migration strategy that provides a straightforward and efficient pathway for achieving continuous power output from i-TECs, opening new avenues for the sustainable harvesting and utilization of low-grade thermal energy.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 2
·121803
·
IF 7.5
Bowen Wu,Xiaopeng Zou,Yue Wang,Yaozu Mi,Hongying Shi,Hailian Zang,Chunyan Li
To enable low-cost 2,3-butanediol (2,3-BD) biorefining, we established an integrated dual-strain, staged coculture that converts straw cellulose to 2,3-BD within a single low-temperature regime. In this study, a cellulose-degrading bacterium Flavobacterium johnsoniae W24H was isolated, which maintains fluidity and antioxidant capacity by adjusting the composition and content of its cell membrane at 15 °C to adapt to low-temperature environments. Simultaneously, it can efficiently degrade cellulose, accumulating 5.87 g/L of reducing sugars within 7 days and exhibiting high cellulase activity. Genomic analysis and molecular docking and enzymatic characterization revealed that W24H possesses a complete cellulase system. Specifically, the key endoglucanase CelB75 and β-glucosidase BglX92 maintain high activity at low temperatures, providing a molecular basis for their low-temperature degradation capability. Under identical low-temperature conditions, the engineered strain W24H- celB75-bglX92 significantly enhanced cellulose saccharification efficiency, achieving a reducing sugar yield of 10.49 g/L. Additionally, by establishing a staged culture system of an efficient cellulose-degrading bacterium (W24H- celB75-bglX92 ) and a 2,3-BD producing bacterium ( Raoultella terrigena HC6), efficient conversion of corn straw cellulose to 2,3-BD was achieved. At 20 °C, compared to the original strain combination, this system optimized the metabolic division of labor between cellulose hydrolysis and product synthesis, resulting in an output of 2,3-BD reaching 0.33 g/g, an increase of 60.1 %. This study achieved efficient biotransformation of straw cellulose into 2,3-BD under low-temperature conditions, providing a foundation for low-energy biorefinery processes with reduced energy input and for the valorization of agricultural waste.
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危险品化学品经营许可证（带存储）