ACS Applied Polymer Materials
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2025
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IF 4.7
Jinxin Xu,Ping Xu,Xikun Zhang,Yiyan Gao,Chuanji Ye,Guangyu Wang,Rongda Zhang,Guanghui Gao
The development of environmentally friendly energy storage devices with high performance has garnered significant attention; however, significant challenges persist in achieving excellent structural stability, high operating voltage, outstanding power density, and outstanding energy density. Here, cellulose was utilized to design hydrogel electrolytes for flexible supercapacitors (FSCs). A dual-network hydrogel was synthesized by interpenetrating cellulose with a poly(acrylamide-co-2-acrylamido-2-methylpropanesulfonic acid) (P(AM-co-AMPS)) network, which was cross-linked by Zn2+. The dissolution of cellulose was facilitated by Zn2+ coordination, while ZnCl2 served as both an ionic conductor and an inhibitor of water molecule electrolytic activity. The hydrogel electrolyte exhibited a significantly enhanced conductivity of 38 mS cm–1, attributed to ion migration channels formed by –SO3H from AMPS. Moreover, the maximum output voltage was increased to an unusual 2 V. Under this voltage, a high specific capacitance of 239.58 mF cm–2 at 0.5 mA cm–2 and an impressive energy density of 130.56 mW h cm–2 at a power density of 0.28 mW cm–2 were obtained. In addition to improved conductivity, AMPS also endowed the hydrogel with remarkable interfacial adhesion of 0.12 MPa to the electrode, enhancing the structural stability and energy storage efficiency of the device. This Zn2+-driven cellulose-based dual-network hydrogel offers valuable insights for the advancement of flexible hydrogel electrolytes.
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ACS Applied Nano Materials
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2025
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IF 5.5
Mengjue Cao,Yi Feng,Yuming Xie,Jianfeng Yao
Lithium-ion hybrid capacitors (LIHCs) have garnered significant attention in recent years because of their high energy and power density. In a proof-of-concept design, ZIF-67 nanoparticles were grown on the skeleton of carbonized bacterial cellulose (CBC) aerogel. Then, nickel cobalt layered double hydroxide (NiCo-LDH) nanosheets were formed via in situ etching-induced conversion of ZIF-67. The resulting free-standing NiCo-LDH/CBC composite not only presents a three-dimensional network to enhance the conductivity and alleviate volume variation, but is also favorable for exposing abundant active sites to increase the lithium-ion storage behavior. Consequently, the obtained free-standing NiCo-LDH/CBC aerogel displays outstanding cycling performance (673 mAh g–1 at 1 A g–1 after 1000 cycles). Furthermore, the fabricated NiCo-LDH/CBC||KCBC LIHC achieves a high energy density (88 Wh kg–1) at a high power density of 10.5 kW kg–1 and an excellent capacity retention of approximately 83% after 10,000 cycles at 2 A g–1, the performance of which makes the obtained free-standing aerogel a promising electrode for advanced wearable LIHC systems.
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PROGRESS IN ORGANIC COATINGS
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2024
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IF 6.5
Baoying Shi,Shuangshuang Liu,Yufeng Wang
The urgent need to prolong the shelf life of fruits and vegetables in a cost-effective and environmentally friendly manner has become paramount in addressing socio-economic challenges and minimizing food waste. In this study, a bio-composite coating was developed for fruit and vegetable preservation, utilizing egg protein as the bio-based film-forming component, egg yolk as the hydrophobic element, cellulose nanofibers for reinforcement, and Nisin as an antimicrobial agent. The preservation efficacy of this coating was examined using bananas and cherry tomatoes , and its mechanism was analyzed. The findings revealed that the coating successfully formed a thin layer on the surface of the fruits, ranging in thickness from nanometers to micrometers. This innovative coating prolonged the shelf life of the fruits by over 6 days under 20 °C, preserving their appearance, hardness, and nutrient content during storage. By inhibiting gas exchange and warding off microbial infestation, the coating effectively slowed the ripening and decay processes. Additionally, its edibility and washability alleviated food safety concerns without compromising the fruit's natural taste. This research offers an innovative solution to the global food waste problem, serving as an environmentally responsible and highly scalable method for maintaining freshness.
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CARBOHYDRATE POLYMERS
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2025
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IF 12.5
Yuefei Zou,Wanlin Wu,Tian Xia,Jiangqi Zhao,Qunhao Wang,Wei Zhang,Canhui Lu
To keep pace with the fast development of portable and wearable electronics, considerable public and scientific attentions have been paid to the flexible energy storage devices with characteristics of light weight, low cost and high electrochemical performance. In this work, we demonstrate a feasible strategy to fabricate novel strand-shaped electrodes from the biomass of Juncus effusus (JE), which can be easily integrated into flexible and rechargeable Zn-MnO 2 batteries with high electrochemical performance. Notably, JE has a very unique three dimensional (3D) triangular-like hollow network microstructure, which greatly favors active material loading, charge transfer and ion diffusion. The obtained aqueous battery presents an excellent specific capacity of 325 mAh g −1 at the current density of 0.3 A g −1 , as well as stunning cycling stability for up to 4000 cycles with 127.53 % retention of the initial capacity. Remarkably, when assembled with a gel electrolyte, the quasi-solid-state battery can work normally under various extreme conditions, including bending, hammering, burning, soaking and puncturing. In addition, due to the high flexibility, the electrodes can be woven in parallel into a textile to form an energy supply unit and successfully power an electronic watch, demonstrating high potential of JE in the fabrication of flexible energy storage devices.
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PubMed
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INDUSTRIAL CROPS AND PRODUCTS
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2025
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IF 6.2
Wenliang Wang,Xiaoxiao Ren,Yong Cui,Yanyi Xue,Bailiang Xue,Xinping Li
The inorganic clay had a significant impact on the properties of superabsorbent composites (SACs). In this study, the alkali-urea system pretreated bamboo pulp fibers were used as raw material, acrylic acid (AA), acrylamide (AM) and 2-acrylamido-2-methyl-propanesulfonic acid (AMPS) as hydrophilic monomers. By using reverse suspension polymerization to incorporate sepiolite (ST), acid-treated sepiolite (AST), montmorillonite (MMT) and acid-treated montmorillonite (AMMT) into superabsorbent materials, four SACs were effectively fabricated. Results showed that the water absorbency of the SACs was: SACs/AST＞SACs/AMMT＞SACs/MMT＞SACs/ST, and the saline absorbency was: SACs/AMMT＞SACs/AST＞SACs/MMT＞SACs/ST. The highest liquid absorbency was 1292.2 g/g (water absorbency) and 134.4 g/g (saline absorbency). The resultant SACs presented excellent swelling performance, swelling repeatability, and high temperature water retention rate. Furthermore, the SACs also had outstanding responsive behavior in physiological saline and pH 2.0 solution.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Hongbo Wang,Jinhong Xue,Junming Liang,Xianpei Xu,Limin You,Yaxin An,Fu Li,Pengfei Fei,Shuqiang Liu,Mei Liu,Fulai Zhao
Composite membranes with excellent antibacterial properties, hydrophilic/hydrophobic differentiation, and selective permeability are preferred materials for wound dressings. In this work, antibacterial bromoacetyl and quaternary ammonium groups were chemically introduced into a regenerated cellulose nanofiber membrane. This hydrophilic membrane was then compounded with a polylactic acid (PLA) liquid film through a non-solvent-induced phase separation process to prepare a composite membrane. FTIR, XPS, and EDS results confirmed the successful chemical modification and presence of antibacterial groups. SEM analysis revealed a stable composite with an asymmetric structure. Modification time, particularly the bromoacetylation duration, had a certain impact on the structure and properties of the composite membrane. The optimized composite membrane exhibited excellent gas permeability (air and water vapor) and differentiated hydrophilic/hydrophobic properties. Membrane modified via bromoacetylation for over 3 h demonstrated >95 % antibacterial efficiency against Escherichia coli and Staphylococcus aureus , indicating broad-spectrum efficacy. The biomass-derived polymer matrix, scalable production process, and multifunctionality highlight its potential for healthcare applications, particularly in wound dressings.
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POLYMER DEGRADATION AND STABILITY
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2025
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IF 7.4
Chenjiao Wang,Peng Sun,Chenhao Wang,Qian Wei,Yanjie Wang,He Guo,Yue Liu,Tiecheng Wang
High-polymer biomass is reactively inert due to its large molecular weight and stable structure, and the depolymerization is an effective strategy to enhance its utilization. Herein, a typical dielectric barrier discharge (DBD) system was established to realize efficient depolymerization of cotton cellulose, where the degree of polymerization declined from 2329 to 430, decreased by 81.5%. H 2 O 2 , O 3 , •OH, O 2 • − and 1 O 2 dominated the depolymerization process by attacking the β -(1,4) glycosidic bonds and hydrogen bonds in cellulose molecules. In addition, the treated cotton cellulose displayed smaller blocks, rougher surface and poor thermal stability, and the crystallinity of cellulose decreased by 15.4% after DBD pretreatment. Interestingly, there were no obvious chemical changes in the main structure of cellulose, only with slight release of substances such as monosaccharides and alcohols. Therefore, these indicated that DBD process achieved the reduction of polymerization and crystallinity while ensuring that the original cellulose structure was not damaged, and was an efficient and alternative pretreatment method for high-polymer biomass.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Caijin Zeng,Aojue Ke,Xinya Zhang
Ionic conductive hydrogels (ICHs) are promising substitutes for rigid metal conductors in flexible sensors. However, integrating high strength, self-adhesion, conductivity, and anti-freezing properties remains a critical issue. Herein, a facile strategy for fabricating a mechanically robust hydrogel with remarkable conductivity and consistent self-adhesion by combining carboxymethylcellulose (CMC) and acryloyloxyethyltrimethyl ammonium chloride (ATAC), 2-acrylamide-2-methylpropanesulfonic acid (AMPS) is reported. The resulting hydrogels demonstrated high ionic conductivity (8.2 S/m), excellent mechanical properties (tensile strength: 0.5 MPa; tensile strain: >1701 %), and strong self-adhesion (up to 10.39 kPa) owing to ionic interactions and hydrogen bonding. With a gauge factor of 2.15, the hydrogels exhibited sensitive electromechanical responses, enabling reliable detection of both large and subtle human motions. When assembled into a flexible strain sensor, it exhibited high sensitivity, facilitating the detection of both significant deformations and subtle human movements. This work provides valuable insights into the rational design of cellulose-based ICHs for advanced bioelectronic applications.
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PubMed
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Food Chemistry-X
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2021
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IF 5.182
Xinna Hu,Tao Ma,Shuyu Lu,Yi Song
This study investigates the interactions between cellulose nanocrystals (CNCs) and bovine serum albumin (BSA) under different pH conditions. A multiscale technique was employed to characterize the CNCs and BSA at pH 7 and pH 3. ζ-Potential measurement and UV–vis spectroscopy demonstrated strong interactions between CNCs and BSA at pH 3, whereat they have opposite charges. Interfacial tensiometry showed a deficiency in the surface activity of the CNCs and indicated that BSA dominated the interface behavior in their complex. Quartz crystal microbalance with dissipation revealed that the sequential adsorption of BSA and CNCs produced viscoelastic bilayers at pH 3, and the mass adsorbed was ∼ 28 times that adsorbed at pH 7. Molecular dynamics simulations indicated that the key interactions between the two materials were produced between the hydrophobic CNC surface and the BSA domain IIA region. These results provide interesting insights into the design of complex food emulsions and fluid interfaces.
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PubMed
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Journal of Cleaner Production
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2025
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IF 10
Youming Zhu,Xudong Zheng,Jingbo Sun,Lin Guo,Xinmiao Pan,Xiang Gu,Xuan Ma,Jinfeng Mei,Zhongyu Li
Conventional adsorbents have the bottleneck of struggling to balance adsorption and desorption efficiencies, adsorbents with high selectivity tend to require high energy consumption for desorption and are prone to secondary pollution. The development of sustainable adsorbents with high selective adsorption performance and eco-friendly regeneration is essential. In this work, cellulose nanocrystalline imprinted aerogels (SP-IA) with smart-responsive properties were synthesized by using aminated cellulose nanocrystals as the substrate, incorporating methoxy-spiropyran as the photo-responsive monomer, and applying ion-imprinting and freeze-drying techniques. The ligand structures formed by incorporating diglycolic anhydride synergistically interacted with methoxy-spiropyran, improving the capture efficiency of SP-IA for terbium ions. Under the condition of pH 5.0, SP-IA had the optimum adsorption capacity of up to 74.10 mg g −1 . SP-IA showed excellent specific recognition of terbium ions in the complex rare earth solution with separation constant as high as 2382 mL g −1 . The green desorption of SP-IA can be realized by switching the illumination condition from UV to visible light. The desorption rate of SP-IA was over 87 %, and the decrease in adsorption capacity after five cycles was significantly smaller than that of other aerogels, maintaining approximately 86 % of initial value. The selective capture and harmless release of terbium ions from SP-IA could be realized by switching between UV and visible light, respectively. The responsive aerogel broadens the potential application of responsive adsorbents for recovery of rare earth elements from e-waste leachate.
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CARBOHYDRATE POLYMERS
·
2020
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IF 7.182
Wenfeng Ni,Zhiming Zheng,Hui Liu,Peng Wang,Li Wang,Han Wang,Xiaowen Sun,Qiang Yang,Hengfang Tang,Genhai Zhao
Prenyltransferase NovQ immobilized carboxymethyl cellulose magnetic nanoparticles (NCMNs) were successfully synthesized via a valuable approach integrated from nanocomposite preparation, and applied for the production of vitamin K 2 using menadione hydroquinol and dimethylallyl diphosphate (DMAPP) as substrates. To investigate the interaction between nanoparticles and NovQ, we characterized the nanocomposite, and revealed that carboxymethyl cellulose (CMC) and Fe 3 O 4 formed a core-shell structure to absorb NovQ in the reaction systems, resulting from the high affinity of immobilized materials. Meanwhile, NCMNs with excellent pH and temperature tolerance, enhanced prenylated activity, and improved stability were found. Molecular docking analysis was also conducted to justify the contribution of multiple amino acids and effect of nanoparticles on catalytic properties of NovQ. Taken together, our study introduces a promising strategy to prepare magnetic nanoparticles and improve the performance of catalyst, which aims for opening new orientations for synthesis of magnetic nanoparticles used for prenyltransferase immobilization.
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PubMed
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JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Chao Ling,Kun Wang,Haoyu Lan,Lixin Huang,Bo Yang
Frequent oil spills and industrial oily wastewater discharges necessitate the development of high-performance, recyclable oil-absorbing materials, as traditional options suffer from low adsorption capacity and poor reusability. To address these limitations, this study developed crosslinked bacterial cellulose (BC) aerogels using 1,2,3,4-butanetetracarboxylic acid (BTCA) and sodium hypophosphite (SHP) as crosslinking agents. The aerogels were fabricated via freeze-drying and brief thermal esterification. By systematically optimizing BTCA content, the 10% BTCA formulation achieved a dense 3D network without crystalline precipitation, exhibiting high porosity (99.8%), minimal shrinkage (5.9%), and reduced pore size (2.2 nm). Crosslinking preserved the cellulose I structure but reduced crystallinity, as confirmed by FTIR and XRD. Thermal stability improved significantly, with residual mass at 600°C increasing from 21.8% to 39.0%. The aerogel demonstrated superior compressive resilience and structural stability in water, with oil absorption capacities of 115.4 g/g for paraffin oil, 98 g/g for engine oil, and 96 g/g for edible oil. Recyclability tests showed 84% retention after 20 ethanol cycles. This work provides a scalable, eco-friendly strategy for robust aerogels with multifunctional oil-absorption capabilities.
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