INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
·
IF 8.7
Xiangting Zhao,Yuyan Zheng,Meiling Chen,Xiaoqin Jiang,Wenhua Miao,Yadong Zhao,Jin Zhu,Fei Liu
In this study, cellulose was facilely dissolved in a novel solvent composed of carbon disulfide, an organic base, and organic solvent, and then regenerated to obtain dithiocarbonate cellulose. Functional fluorescent material was then fabricated by grafting poly(lactic acid) side chain and dansyl chloride (DNS-Cl) to the backbone of this cellulose derivative. The product, denoted as cellulose- graft -poly(lactic acid)/dansyl chloride (C-g-PLLA/DNS-Cl), was obtained by simply dissolving cellulose and grafting fluorescent structures. It exhibits a distinct glass transition temperature, indicating thermal processing properties. It displays yellow-green fluorescence in both solid and solution states. The fluorescence intensity increases with solution concentration; when the concentration reaches 1.0 mg/mL, the intensity begins to decrease until complete quenching, exhibiting a pronounced aggregation-caused quenching (ACQ) effect. Simultaneously, it exhibits high sensitivity fluorescent response towards Fe 3+ with a detection limit as low as 1.40 × 10 −5 M. This study provides a new perspective on the high-value utilization of cellulose based on a novel solvent.
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BIOCHEMICAL ENGINEERING JOURNAL
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2026
·
IF 3.6
Wenjie Wang,Qiang Li,Niuniu Deng,Gengsheng Ji
Inspired by the protective and structural role of plant cell walls, we developed a synthetic cell wall using cationic lignin and carboxymethyl cellulose to encapsulate Saccharomyces cerevisiae at the single-cell level. This artificial cell wall enhances S. cerevisiae 's fermentation efficiency and improves glucose uptake under extreme environmental conditions. The single-cell artificial cell wall encapsulation markedly improved the metabolic efficiency of S. cerevisiae without substantially impeding its normal growth and reproductive capacity. Notably, the encapsulated S. cerevisiae demonstrated superior cell proliferation over non-encapsulated cell under NaCl stress (P < 0.01). The tolerance of S. cerevisiae to the low temperature at 4 ℃ increased by 14.48%(P < 0.01) respectively after encapsulation of the artificial cell wall. Moreover, the lignin-cellulose artificial cell wall represents a novel strategy to enhance both fermentative capacity and environmental stress tolerance in S. cerevisiae , demonstrating significant potential for industrial-scale applications.
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MICROCHIMICA ACTA
·
2026
·Vol. 193
·期 7
·469
·
IF 5.4
Lin Luyao,Wang Haonan,Lei Xinlin,Zhuang Xin,Chen Yiqing,Lai Qiyue,Li Bo,Fang Yulin,Xu Yunli,You Ruiyun,Lu Yudong
Efficient localization of analytes near plasmonic hotspots remains a major challenge for surface-enhanced Raman scattering (SERS) detection in complex liquid-phase systems. Herein, an interlaced cellulose-based porous membrane composed of dissolving pulp fibers (DPFs), mechanically ground nanofibers (MGNFs), sodium alginate (SA), and Ag nanoparticles was developed as a molecular enrichment-assisted SERS platform for sweat biomarker determination. The hierarchical porous architecture provided interconnected transport channels and abundant interfacial adsorption sites, facilitating analyte retention and localized enrichment within the plasmonic region. Benefiting from the synergistic effects of porous confinement and uniformly distributed Ag nanoparticles, the optimized substrate exhibited sensitive and reproducible SERS performance with an enhancement factor of 4.36 × 10⁷, a relative standard deviation of 8.04%, and a detection limit down to 1.0 × 10⁻⁸ mol/L for Rhodamine 6G (R6G). Systematic adsorption experiments using molecules with different charge properties further demonstrated the broad molecular enrichment capability of the structured cellulose network. The developed platform enabled quantitative detection of lactate and urea within physiologically relevant sweat concentration ranges and showed satisfactory analytical performance in spiked sweat samples. More importantly, this work demonstrates a structure-engineered porous membrane strategy for integrating molecular enrichment with plasmonic sensing, providing new insight into cellulose-based SERS platforms for complex bioanalytical applications. Graphical abstract The alternative text for this image may have been generated using AI.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
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IF 8.7
Haiying Cui,Chong Yuen Yuen,Xiaochen Chen,Tariq Aziz,Layla A. Alahmari,Laila A. AL-Essa,Fahad Al-Asmari,Lin Lin
This study developed a chitosan (CS)/dialdehyde carboxymethyl cellulose (DCMC) composite film loaded with perillaldehyde (PAE) and evaluated its functional properties and application in cheese preservation. FTIR analysis suggested successful oxidation of carboxymethyl cellulose (CMC) and possible intermolecular interactions between DCMC and CS. PAE incorporation altered film behaviour in a concentration-dependent manner, with the 3 mg/mL film showing the best balance of transparency, flexibility, and structural uniformity. PAE exhibited strong inhibitory effects against Staphylococcus aureus at all tested levels and Listeria monocytogenes at ≥2 mg/mL. When applied to cheese, the P/DC-CS film reduced texture deterioration, limited colour changes, and significantly slowed lipid oxidation during refrigerated storage. These findings indicate that combining DCMC crosslinking with PAE incorporation offers a feasible approach to produce natural active films suitable for short-term dairy preservation.
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NEW JOURNAL OF CHEMISTRY
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2026
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IF 2.6
Xinyuan Wan
Structural colors derived from chiral nematic cellulose nanocrystals (CNCs) hold great promise for sustainable photonics; however, their practical applications are severely impeded by intrinsic mechanical brittleness and extreme vulnerability to environmental hazards, particularly moisture and fire. Herein, we report an ultrastrong, superamphiphobic, and flame-retardant biomimetic composite film designed to fundamentally break this longstanding optical-mechanical trade-off. By encapsulating a fragile CNC photonic core between two robust, highly aligned cellulose nanofibril (CNF) skins derived from natural wood, a synergistic high-pressure densification strategy is employed to reconstruct the mechanical framework. The resulting "sandwich" composite not only perfectly preserves vibrant, tunable macroscopic iridescence but also achieves an unprecedented tensile strength of 474.4 MPa and a remarkable toughness of 21.15 MJ m-3—representing staggering ~50-fold and ~190-fold enhancements over pure CNC films, respectively. Furthermore, the integration of a hierarchical multiscale coating (F-FC-APP/SiO2) endows the composite with robust superamphiphobicity (contact angles >150° for water and varied oils) and excellent self-extinguishing flame retardancy. This rational structural and interfacial engineering strategy effectively shields the photonic core from physical and environmental degradation, paving a sustainable pathway for the deployment of durable, multifunctional structural color materials as eco-friendly alternatives to toxic chemical dyes in demanding optical, decorative, and load-bearing applications.
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Gels
·
2026
·Vol. 12
·期 6
·531
·
IF 6.4
Daning Lang,Mengyuan Yan,Ming Shi,Shixue He,Ronglan Wu
Oily wastewater, especially stable oil-in-water (O/W) emulsions, threatens aquatic ecosystems and is difficult to treat using conventional separation technologies. Herein, a hydrophilic and underwater oleophobic chitosan/polyvinyl alcohol (PVA)/cellulose aerogel (CPCG) was fabricated through a facile one-pot dip-coating strategy. Cellulose aerogel (CG) was prepared by low-temperature dissolution, network reinforcement, washing, and freeze-drying, before being coated with a cross-linked CS/PVA layer using glutaraldehyde, followed by NaOH solidification. SEM revealed a honeycomb-like cellulose framework uniformly covered by the CS/PVA coating, which improved the structural integrity of the skeleton. FT-IR and TG analyses supported the successful construction of the coating and the enhanced thermal stability of CPCG. CPCG displayed a high underwater oil contact angle of 153.8°, which remained above 153° after 30 min, indicating robust underwater oil repellency. Wet CPCG retained 99% of its original height after 30 compression–recovery cycles. Owing to the stable hydration layer, interconnected channels, and improved wet-state resilience, CPCG efficiently separated light and heavy oil/water mixtures and various O/W emulsions. The separation efficiencies for different emulsions were above 99%, and CPCG retained about 93% efficiency after ten cyclohexane/water emulsion separation cycles. This work provides a green and scalable route for constructing biomass-based aerogels for oily wastewater treatment.
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JOURNAL OF MEMBRANE SCIENCE
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2026
·
IF 8.8
Fuju Qi,Benkun Qi,Zhaoliang Cui,Yinhua Wan,Jianquan Luo
The industrial maturity of N-methylmorpholine-N-oxide (NMMO) as a cellulose solvent enables direct fabrication of regenerated cellulose membranes (RCMs). This study systematically examines how the intrinsic feedstock properties, beyond the solvent, govern membrane formation and transport performance using a range of industrial pulps. Results showed that reducing the degree of polymerization (DP) decreased dope viscosity and accelerated phase inversion, driving a structural transition from dense lamellar architectures to highly interconnected porous networks. This transition significantly enhanced permeability but at the expense of solute rejection, revealing an inherent trade-off between transport and selectivity. Residual xylan in the pulp was further identified as an intrinsic pore-forming component that promotes pore connectivity. To overcome the limited processability of high-DP feedstocks, a synergistic blending strategy with low-DP microcrystalline cellulose (MCC) was introduced. By exploiting viscosity contrasts between components, the accessible polymer concentration window was expanded without compromising spinnability, enabling finer control over membrane structure. In addition, regulating coagulation bath temperature was found to be more effective than increasing casting temperature in enhancing permeability in high-viscosity systems. Under optimized conditions (3 wt% pulp and 7 wt% MCC, coagulation at 35 °C), the membrane achieved a pure water permeability of 63.3 L m −2 h −1 bar −1 , along with a bovine serum albumin permeability of 62.0 L m −2 h −1 bar −1 and a rejection of 95.3%. This work establishes a feedstock engineering framework for controlling morphological transition and transport trade-offs in NMMO-based RCMs, offering new insights into the efficient utilization of biomass-derived cellulose for high-performance membrane fabrication.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
·
IF 8.7
Shufeng Ma,Zhongli Liu,Qianru Meng,Shiqiang Ouyang,Yueming Hu,Feijie Wang
During meat spoilage, microorganisms rapidly proliferate and decompose nitrogen-containing compounds such as proteins, releasing volatile alkaline substances, including ammonia (NH 3 ). Among these, NH 3 is widely recognized as a key indicator gas for evaluating changes in food freshness. To enable real-time monitoring of perishable food quality, this study developed an integrated self-powered smart material system based on cellulose nanofibers (CNF) with combined sensing and power-generation functions. Ti 3 C 2 T x was used as the NH 3 -sensitive functional filler, and a Ti 3 C 2 T x /SnO 2 heterojunction was formed by introducing SnO 2 , enabling synergistic enhancement of both NH 3 sensing sensitivity and triboelectric output performance. In addition, a TEOS-induced cross-linked network was introduced to enhance the structural stability and electrical performance of the composite film. The results show that the device achieves a triboelectric open-circuit voltage (Voc) of 82 V and a maximum instantaneous power density of 7.99 μW·cm −2 . It exhibits a stable linear response over the NH 3 concentration range of 5–120 ppm, with response and recovery times of 14 s and 32 s, respectively, and maintains good long-term stability over 20 days. Within the ppm-level concentration range relevant to meat spoilage, the sensor maintains continuous and distinguishable response signals under varying humidity conditions, enabling trend identification and dynamic monitoring of freshness changes. Furthermore, pork storage experiments demonstrated that the system could continuously track NH 3 release and effectively distinguish freshness changes under storage conditions of 20 °C, 4 °C, and − 20 °C, highlighting its significant potential for self-powered intelligent food packaging applications.
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CARBOHYDRATE POLYMERS
·
2026
·
IF 13.2
Linxun Li,Houbin Liu,Yuanpeng Wu,Li Wang,Xi Yang,Chunyu Feng
Drilling fluid loss is a major challenge facing oil and gas drilling operations worldwide and often results in significant economic losses. Although traditional liquid-crystal materials (LCMs) offer key advantages such as self-adaptive crack plugging capabilities and adjustable gelation times. However, due to its limited pressure resistance, its range of applications remains limited. In this study, a simple freeze-thaw strategy was employed to innovatively develop a PVA-based plugging hydrogel. This method leverages physical cross-linking properties to reduce the need for chemical cross-linking agents and improve the material's rheological properties. The 15% PVA hydrogel achieved a tensile strength of 6.99 MPa. Its compressive strength was 4 MPa at 80% strain. Furthermore, it exhibited excellent fatigue resistance, with compressive strength decreasing by only 21% after 50 cycles. Simulated plugging tests demonstrated that the prepared hydrogel exhibits excellent sealing performance under a water pressure of 5 MPa. This study provides an economically viable and environmentally friendly solution for preventing drilling fluid loss, making it a highly promising candidate material for deep-sea drilling applications.
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CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Yuqin Xiao,Yuxin Yan,Haitao Zhao,Edward Lester,Tao Wu,Cheng Heng Pang
rGO synthesis via reduction-before-exfoliation to preserve sp 2 networks • Theory-guided green conversion of cellulose to rGO without toxic reagents • Cellulose-derived rGO shows 62% lower I D /I G and 30% higher photothermal performance. • Cellulose-derived process reduces CO₂ emissions by 45% and chemical costs by 50%. • Reduced impacts on ecosystems by 48%, resources by 42%, and human health by 48% Reduced graphene oxide (rGO) is a promising photothermal material due to its thermal stability, electrical conductivity, and strong near-infrared (NIR) laser absorption. However, conventional synthesis routes disrupt the sp 2 carbon framework, diminishing photothermal conversion efficiency, and involve environmental hazards. Here, we report a chemical-free reduction-then-exfoliation strategy using cellulose as a renewable precursor to produce high-quality rGO with preserved sp 2 domains. Cellulose is first thermally converted into graphite-like biochar with a high C/O ratio, followed by ultrasonication-assisted exfoliation guided by theoretical calculations. Compared with conventionally synthesized rGO at similar C/O ratios, the cellulose-derived rGO exhibits a 62% lower I D /I G ratio, indicating significantly improved preservation of sp 2 domains. This structural advantage leads to enhanced photothermal performance, with a 10.1–33.0% higher temperature increase under comparable near-infrared irradiation conditions. Simulation-guided optimization of surfactant addition further reduces exfoliation energy, resulting in a 40% increase in yield at the optimal ratio. Life-cycle assessment demonstrates substantial sustainability benefits, including up to 48% reduction in ecosystem impact, 42% reduction in resource depletion, and 48% lower human health damage, together with approximately 50% improvement in cost efficiency compared to conventional methods. This work provides a high-performance and eco-efficient pathway for rGO production and establishes a mechanistic framework linking precursor structure, processing strategy, and functional performance for biomass-derived carbon materials.
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ACS Applied Polymer Materials
·
2026
·
IF 5.2
Jiaming Fan,Kefeng Liu,Guihua Yang,Qixiu Dong,Junchao Li,Jiachuan Chen
The efficient cleanup of high-viscosity crude oil spills remains a formidable challenge due to the poor fluidity of oil and the complexity of marine environments. Herein, a multifunctional superhydrophobic MXene/cellulose nanofiber (S-MXene/SCNF) composite aerogel was developed for all-weather crude oil remediation. By combining freeze-drying with a two-step silanization strategy, the MXene nanosheets were uniformly assembled into the CNF scaffold, creating a stable 3D conductive network with excellent environmental durability. The resulting S-MXene/SCNF aerogel exhibits dual-mode heat generation capabilities, achieving rapid surface heating up to 188.7 °C under solar irradiation (0.20 W/cm2) and 129 °C under a low voltage of 3.0 V. This localized heating effectively reduces the viscosity of crude oil by several orders of magnitude, thereby solving the problem of slow diffusion in conventional adsorbents. Consequently, the aerogel demonstrates an ultrahigh continuous oil separation flux of 461.2 kg·m–2·h–1 and a fast adsorption time (<45 s). Moreover, the S-MXene/SCNF aerogel maintains stable superhydrophobicity and high separation efficiency even after 50 cycles. Overall, this work presents a scalable, energy-efficient, and environmentally stable material for heavy oil spill remediation.
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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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