INDUSTRIAL CROPS AND PRODUCTS
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2025
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IF 6.2
Di Xie,Jinhong Li,Congcong Zhang,Siwen Yang,An Yang,Shanshan Song,Yongming Song
An increasing interest in utilizing biomass resources to develop bioplastics, aiming to mitigate the environmental and energy issues resulting from the use of petroleum-based plastics. However, bioplastics that suffering from poor interface bonding and hydrophilicity of the feedstock usually exhibit inadequate mechanical properties, water stability and functionality, which hinder their practical applications. Herein, a simple and effective strategy was proposed to develop high-performance starch-based bioplastics with thermoplastic by 2,2,6,6-tetramethylpiperidine 1-oxy-oxidized cellulose nanofibers and different modified starch fillers coupled with chemical cross-linking reinforcement. Due to the full utilization of the advantages of each component, outstanding interface bonding and rich chemical cross-linking, all the obtained modified starch-based bioplastics demonstrated excellent mechanical properties (up to 20.52 MPa) and superior water stability. Besides, the starch-based bioplastics could be reused after dissolution-regeneration, and completely biodegradable after disposal. At the same time, the starch-based bioplastics exhibited remarkable heat-sealing properties, which provided more convenient possibility of producing packaging materials for bioplastics used in different fields.
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Journal of Materials Chemistry C
·
2025
·
IF 5.1
Xu Li,Yuzhou Chen,Yunlong Dong,Yang Li,Yuelan Lv,Yongjun Liu
Traditional single-channel message encryption can only store a limited amount of encrypted information, and the lower level of security makes the decryption process very vulnerable. In this regard creating a multi-channel message encryption combining structural color, photoluminescence, and chiral optical properties is necessary. In this work, a cellulose nanocrystal (CNC)/glycerol (Gly)/polyvinylpyrrolidone (PVP) ternary cellulose nanocrystal composite film is designed with excellent optical properties, unique structural features and good mechanical properties, which can effectively respond to left-hand circularly polarized light, viewing angle and relative humidity changes. Microanalysis showed that the presence of Gly and PVP would not hinder the self-assembly of CNCs in aqueous solution and would enhance the mechanical properties and improve the structural color of the composite films. Afterwards, the fluorescent dye spiropyran (SP) was introduced into the system, and the composite film SP-CNC produces richer color effects. Based on this, we constructed a multi-channel message encryption model by combining the excellent optical properties of CNCs, the photoluminescence properties of SP dyes, and the classical Vigenère cipher. This greatly improves the security level of message encryption and provides a powerful strategy for large-capacity and high-security message encryption.
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Journal of Materials Chemistry C
·
2025
·
IF 5.1
Liqiu Yang,Jie Wang,Jinyu Wang,Xiaoyu Wang,Shuai Huang,Tao Yang,Quan Li
When sensing favorable signals, peritrichous bacteria such as E. coli can switch from the “running” to the “tumbling” mode by reversing the rotation direction, resulting in the unbundling of flagella. Inspired by this adaptive behavior, we have developed bi-flagellated soft robots using 3D-printed liquid crystal elastomers/gels. These artificial flagella exhibit helicity reversal when the environmental temperature exceeds the nematic-to-isotropic temperature. The structural parameter transition allows individual flagella to change from helical to planar structures. Meanwhile, the bundling states between the flagella can be manipulated through the hydrodynamic couplings during rotation, thus altering the propulsion behavior of the robots. This dynamic control mechanism, akin to the bacterial chemotactic behaviors, effectively transforms material intelligence into self-adapting robots. Our design presents a novel approach to fabricating adaptive soft machines, with potential applications in various fields of robotics and beyond.
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Sheng Zhong,Syed Ali Haider Zaidi,Bin He,Shuang Wei,Hasnain Nawaz,Ruirui Wang,Ruixia Liu
The electrooxidation of glycerol (GOR) represents a prospective environmentally friendly approach for the production of value-added biomass-derived chemicals. However, this reaction is hindered by significant barriers arising from the adsorption and coupling of glycerol molecules and active hydroxyl species (OH − ) on the catalytic surface, which severely constrains catalytic efficiency. In this study, a copper-based catalytic electrode enriched with oxygen vacancies (V O -CuO x /CF) is developed to optimize adsorption behavior via a synergistic dual mechanism: providing extra adsorption sites and fine-tuning the d-band center of the material from both extrinsic and intrinsic perspectives. Using density functional theory calculations and electrochemical testing, the introduction of oxygen vacancies (V O ) optimizes the adsorption process and enhance the adsorption capacity of both OH − and glycerol molecules. As a result, the V O -enriched catalyst exhibits reduced charge transfer resistance and remarkable deep oxidation capability. Exceptional GOR performance is achieved, including an extremely low onset potential of 1.10 V RHE and a high formate selectivity of 95.83%. Besides, continuous generation of formate and H 2 is accomplished in a two-electrode flow cell electrolyzer. This study provides essential insights into the optimization of adsorption sites and established a robust framework designing of efficient electrocatalysts for the electrooxidation of biomass-derived platform molecules.
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COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
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2025
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IF 8.9
Junpeng Shu,Fan Tang,Hui Shi,Ming Tian,Ruowang Chen,Zhenning Hu,Md Al Shahriar Akash,Nadia Afzal,Chaojun Tang,Neng Wan
Thermal interface material (TIM) composites composed of hexagonal boron nitride (hBN) fillers with high thermal conductivity and mechanical slow resilience properties have been shown to be effective solutions for increasing the demand for electronic device heat dissipation. However, the use of polymers or resins as the TIM matrix is costly for recycling or causes severe environmental pollution due to the long period of degradation. Additionally, the hBN filler normally has a much higher cost than the matrix does. Thus, the search for environmentally friendly and cost-effective recyclable hBN-based TIM composites is promising. Here, we develop a malleable and easily processable hBN/starch composite dough through a cost-effective and scalable fabrication process. The prepared composite exhibited a high thermal conductivity of 4.30 W m −1 K −1 (at 40 wt% hBN loading), good thermal stability and good mechanical compliance properties with stable slow resilience. The resulting TIM ensures seamless contact between the heat source and heat sink, which contributes to effectively enhanced heat dissipation. Excellent antibacterial properties are also demonstrated by the addition of a small amount of glycerol or tannic acid to the TIM. The hBN fillers can be recycled at a high recovery rate of 96.1 % with a low process cost. Our work provides a novel and practical strategy for developing high-performance and low-cost TIMs for thermal management applications.
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APPLIED CATALYSIS A-GENERAL
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2025
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IF 4.8
Fengqin Guo,Jiajun Zhang,Xiang Hui,Yan Cao,Peng He,Huiquan Li,Liguo Wang
The synthesis of cyclic carbonates via carbon-oxygen bond activation of vicinal-diols and linear carbonates via transesterification is significant, but the reaction mechanism remains unclear. Herein, we synthesized 1,2-butene carbonate (1,2-BC) from 1,2-butanediol (1,2-BDO) and dimethyl carbonate (DMC) as a target reaction and investigated the relationship between different CeO 2 crystal effects and acid-base sites. CeO 2 -rod exhibits more oxygen vacancies (Ce 3 + -O v ), generating additional Ce 3+ and O 2- as Lewis acid and base sites, respectively, enhancing the activation of C-O and O-H bonds. CeO 2 -R exhibited high activity, achieving a space-time yield of up to 500 g 1,2-BC ·h −1 ·g cat −1 during 200 h long-term operation. Difficulty in adsorption of the active conformation due to the presence of competing adsorption, in situ DRIFTS revealed that the bridging butoxy-O v of 1,2-BDO and the cis-cis monodentate adsorption conformation of DMC play a decisive role in the reaction. The presence of key intermediates that are difficult to capture was confirmed for the first time. Molecular dynamics simulations justify the proposed theory of dehydrocyclization of the intermediate hydroxy butylmethyl carbonate to 1,2-BC. The good generalizability of vicinal-diol substrate provides a reference and inspiration for synthesizing cyclic carbonates.
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LWT-FOOD SCIENCE AND TECHNOLOGY
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2025
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IF 6.6
Shudong Peng,Jiajun Li,Yating Long,Ying Zheng,Dongming Lan,Yonghua Wang
Foodborne Escherichia coli is one of the health-threatening pathogens existing on the surface of vegetables and fruits. Although antibiotics are the first line of defence against bacteria, increasing concerns are awake about the multidrug resistance caused by overuse and misuse of antibiotics. Therefore, alternative antibacterials are urgently necessary. In this context, we identified, cloned and expressed a novel endolysin LysD6E derived from marine phage D6E for its potential antibacterial action against E. coli . LysD6E consists of an Amidase_3 domain belonging to the N-acetylmuramoyl-L-alanine amidase family. LysD6E was stabile between 4 and 70 °C, and pH between 6 and 10. It had strong lysogenic activity against E. coli and Salmonella typhi . Furthermore, when applying 0.5 μM of LysD6E together with 5 mM EDTA on lettuce for 2 h, viable counts of E. coli ATCC 25922 reduced by 2.05 Log CFU/mL. Our findings suggest that phage-derived LysD6E has the potential against foodborne E. coli in raw vegetables.
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Journal of Environmental Chemical Engineering
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2025
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IF 7.2
Chengcheng Suo,Xiaochang Zhang,Xinai Li,Jifang Zhang,Hongru Zhang,Rui Teng,Wei Li,Sha Luo,Bing Tian,Qingjiang Pan,Chunhui Ma,Zhijun Chen,Shouxin Liu
In lignin depolymerization, we use a lot of organic solvent which is still an environment problem in large scale industrialization. Therefore, we propose the photocatalytic biorefining green closed-loop (PBGC) to realize green and sustainable development. Different from organic solvents, we find that supramolecular solvents can synergistically interact with photocatalysts to influence the final products. The solubility of Alkali lignin (AL) in supramolecular solvent was 150 % higher than in ChCl/1,4 BDO (1:3) due to the AL and solvent have the similar supramolecular structure. Additionally, supramolecular solvent was used at low temperature (60 °C) which overcame the bottleneck of high viscosity provided huge possibility on industrial application. AL was photocatalytic-assisted oxidized by WO 3 /g-C 3 N 4 /h-BN (WCB). The conversion of AL achieves 38.61 wt%, and the yield of vanillic acid is 22.87 % in product. In this process, the β-O-4 bonds within the lignin structure were activated by hydroxyl radicals originating from the supramolecular solvent. The hydroxyl radical was produced from 1,4 BDO in supramolecular solvent. In dark environment, AL interacted with supramolecular solvent aroused the generation of C α aryloxy radical (ArO•). The superoxide radical was produced on the WCB from O 2 which could stabilize the C α ArO• quickly to final products.
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INDUSTRIAL CROPS AND PRODUCTS
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2025
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IF 6.2
Nan Wu,Lili Ren,Wei Song,Jian Xu,Li Zhang,Shuai Wang,Zeyu Wang,Qiancheng He,Qingzhu Zhang
The rapid advancement of smart agriculture has created a growing demand for innovative materials capable of real-time environmental monitoring. In this study, starch/carboxymethyl cellulose/cresol red (SCR, CMCCR, SCMCCR) composite films were developed using a casting method to explore the effects of pH-responsive reagents at 0.3 wt% content on the films' physicochemical properties. The SCMCCR film showed a 20.26 % reduction in thickness compared to the SCR film, while its density increased by 26.6 %. Mechanical testing revealed that the tensile strength improved by 17.38 %, and the elongation at break remained at 52.56 %. Notably, the SCMCCR film achieved a Young's modulus of 552.96 MPa, which is over 6 times higher than that of the CMCCR film and 23 times greater than that of the SCR film. Water solubility of 27.77 % and enhanced thermal stability, with a final residual content of 49.57 % at 600 °C, were observed for the SCMCCR film. Characterization by FT-IR, XRD, and SEM confirmed structural and morphological modifications. The films raw materials exhibited exceptional responsiveness to humidity variations and film demonstrated rapid and distinct color transitions from yellow to purple across specific pH value. The environmentally friendly composition, low cost, and high sensitivity of these films make them promising candidates for real-time soil pH monitoring.
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Nature Communications
·
2025
·Vol. 16
·期 1
·1-12
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IF 15.7
Wang Xiner,Fan Weijian,Liu Yuxin,Chen Li,Zhou Erda,Wei Xiaoling,Sun Liuyang,Yu Bo,Tao Tiger H.,Zhou Zhitao,Tan Jinyun
The autonomic nervous system (ANS) dynamically regulates vasomotor function to maintain vascular homeostasis, yet current clinical tools lack the capacity to capture its electrophysiological basis, particularly following stent implantation. Herin, we report a bioadhesive and conformable bioelectronic (BACE) interface engineered for effective monitoring and modulation of vasomotoricity. Incorporating silk fibroin-based adhesives, the interface adheres robustly to cylindrical surfaces in aqueous conditions for up to two months. It exhibits low interfacial impedance (6.77 ± 2.13 kΩ at 1 kHz) and background noises (2.63 ± 0.52 μV) in vivo, enabling precise recording of varying vasomotor states. In a stent model, the interface identifies alterations in bioelectrical activity associated with vasomotor dysfunction, validated against ultrasound-derived arterial stiffness as clinical gold standards. Furthermore, we demonstrate a bidirectional system for the detection and modulation of dysfunction to restore vasomotor activity and elasticity. These findings provide insights into vasomotor electrophysiology mechanisms and underscore the therapeutic potential of bioelectronic modulation in vascular disease.
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高影响因子
MACROMOLECULES
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2025
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IF 5.2
Menghan Pi,Kun Zhang,Jixing Liu,Hui Sun,Min Li,Wei Cui,Rong Ran
Eutectic gels are generally regarded as mechanically weak due to the plasticizing effect of deep eutectic solvents, which limit their application under mechanically demanding conditions. Here, we demonstrate that Lewis acids can trigger salting-out behavior, a mechanism well established in aqueous systems but largely unexplored in nonaqueous media, to markedly enhance the performance of eutectic gels. Experimental and computational analyses reveal that Lewis acids competitively coordinate with both eutectic solvent molecules and polymer networks. They either bind to the solvent molecules and displace them from the polymer, or directly coordinate with the polymer due to their stronger binding affinity. This coordination suppresses solvent-induced plasticization and promotes chain-aggregation-driven phase separation. As a result, the eutectic gels exhibit significantly improved mechanical properties, including a fracture stress of 12 MPa, a Young’s modulus of 52 MPa, and a fracture energy of 41 kJ m–2, representing 17, 288, and 11-fold enhancements over their untoughened counterparts. The toughened gels also display robust tissue adhesion and broad damping capability, enabling use as wearable bioelectrodes that effectively reduce motion artifacts during electromyography and electrocardiography monitoring. This work unveils a previously unrecognized toughening mechanism in nonaqueous eutectic systems, advancing the design of high-performance functional soft materials.
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ACS Applied Materials & Interfaces
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2025
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IF 8.2
Chunyue Zhao,Jinfeng Xing
Hydrogel-based sensors typically exhibit pronounced swelling underwater, leading to the accelerated deterioration of mechanical properties and signal distortion, thereby limiting their applicability. In this study, we developed an antiswelling hydrogel comprising N, N′-methylenebis (acrylamide)-cross-linked poly(acrylic acid) (PAAc) and polylysine (PLL) in a water/glycerol (Gl) binary solvent system via a protocatechualdehyde (PA)-Fe3+ autocatalytic system, inspired by natural catechol/metal-ion coordination and solvent-exchange strategies. The PA-Fe3+ system rapidly initiates AAc polymerization at ambient temperature, while Gl’s viscosity regulates heat transfer and enhances reaction efficiency. Upon underwater immersion, Gl is replaced with water molecules, triggering network reconstruction through ion complexation and electrostatic interactions to form a dense spatial structure. The antiswelling performance is tunable by adjusting PA/Fe3+ ratios and Gl content. Remarkably, the hydrogel maintains stable mechanical properties and sensing functions in both air and underwater environments. It enables both airborne motion sensing (e.g., speech recognition) and underwater strain sensing (e.g., Morse code detection). This study provides a facile strategy for the design of conductive hydrogel sensors with antiswelling performance for long-term underwater applications.
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