Journal of Energy Chemistry
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2025
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IF 14.9
Jie Deng,Ningxin Chen,Sida Xie,Shan Liu,Zichan Yuan,Shuaiming He,Shi Chen,Zhaohui Wang
Cellulose, the most abundant and renewable biopolymer, offers a sustainable and cost-effective solution for regulating lithium electrodeposition toward safer lithium metal batteries, thanks to its high nanofibrous structure and intrinsic lithiophilic property. In this work, we introduce interface-engineered cellulose-based separators by converting intrinsic hydroxyl groups on cellulose nanofibers (CNFs) to nitrogen functionalities through a trace conducting polymer coating. Both experimental and theoretical results reveal that the nitrogen moieties disrupt the compact hydrogen bond network within hydroxyl cellulose, enabling multiple nitrogen-lithium interactions that enhance lithium ion transport. In addition to an extraordinary Li + transference number of 0.86 and a high ionic conductivity of 1.1 mS cm −1 , the nitrogen-functionalized CNF contributes to a uniform electric field and Li + concentration distribution across the lithium metal surface. This facilitates the formation of a LiF-rich solid electrolyte interface and suppresses Li dendrite growth. Consequently, Li||Li cells demonstrate stable plating/stripping cycles for approximately 3000 h at a current density of 1 mA cm −2 with a fixed capacity of 1 mAh cm −2 , while maintaining a low overpotential of 15 mV. Our work provides valuable insights into the surface functionalization of natural biomass for advancing sustainable energy storage technologies.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Shuyang Gan,Tianran Zheng,Jiayu Miao,Yunhua Bai,Xiong-Fei Zhang,Jianfeng Yao
Escalating environmental concerns over plastic packaging have prompted extensive researches into renewable bio-based alternatives. In this study, bacterial cellulose (BC) films modified with natural Sapindus saponin (SS) and gelatin were developed as multifunctional active packaging materials for fruit preservation. SS and gelatin gave the composite a denser and more stable structure via the formation of covalent crosslinking, thereby strengthening the mechanical properties of the bio-based films (BFs). The tensile stress of the designed film (BF3) was 28.21 MPa, which was 89.93% greater than that of the BC film. Compared with the control, the BFs had better thermal stability and greater barrier properties, coupled with good natural affinity. Additionally, owing to the presence of SS, the BF3 showed remarkable ultraviolet-blocking capacity (92.24% UVA and 99.71% UVB shielding rates), antioxidant activity (68.47% DPPH and 74.38% ABTS scavenging activities), and anti-bacterial property ( Escherichia coli , 6.4 mm; Staphylococcus aureus , 22.8 mm), which corresponded to the excellent freshness preservation ability. The fresh blueberries packaged with BF3 had less weight loss, reduced postharvest decay, and delayed softening, thus achieving a longer shelf life. In summary, BFs have a promising application prospect as a sustainable and effective packaging material for fruit preservation.
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JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
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2025
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IF 6.2
Hengshuo Gu,Ting Zhao,Jian Li,Yufei Gu,Hucheng Ge,Yuke Liu,Fuwei Li,Zhixia Li,Hongfei Lin,Jiangfei Cao
Hierarchical ZSM-5 (Z-40) was synthesized via a simple two-step hydrothermal crystallization without using any organic template. Low-density polyethylene (LDPE) as hydrogen donor was added into the catalytic pyrolysis of cellulose to enhance deoxygenation and the formation of BTX (benzene, toluene, xylene). Cellulose and LDPE showed the strongest synergistic effect at a feed ratio of 1, and the obtained experimental BTX yield (22.9 %) was 52.7 % higher than the theoretical yield (15 %). Co-catalytic pyrolysis (CCP) of two polymers followed similar cracking behavior to CCP of their pyrolysis vapor model compounds (furfural and n -octane), mainly including pyrolysis, catalytic cracking of pyrolysis fragments in external surface and hydrocarbons pool reactions of small cracking fragments in the internal micropores of zeolite. Z-40 showed better catalytic performance than the commercial ZSM-5 (higher BTX yield and less coke deposition) due to the appropriate acidic properties and distinctive pore structure. The optimal condition for CCP of cellulose/LDPE was temperature at 550 °C, feed ratio at 1:1 and catalyst/feed ratio at 2:1, and the achieved BTX yield reached 24.5 % with high BTX selectivity of 86.7 %. This work provided a cost-effective method for synthesis of ZSM-5 and production of high value-added BTX via a green non-oil route.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Li Xu,Zhongzhao Zheng,Lulu Fang,Jianlang Zhou,Xiaofeng Zheng,Qiujie Gao,Changyan Xu
A cellulose-derived CDs/PVA composite film was prepared as a multifunctional food packaging material. CDs were synthesized by a one-pot water heating method, with a size distribution ranging from 1.05 to 6.65 nm, and were incorporated into the PVA matrix at concentrations between 0.2 % and 0.8 % to create the nano-composite film. SEM images confirmed the compatibility and potential hydrogen bonding between the low-concentration CDs (<0.4 wt%) and the matrix. This interaction improves the mechanical strength of the composite films. Optical analysis of CDs/PVA films showing good UV shielding effect. Thermal characteristics showed that moderate CDs doping (0.4 wt%) reduced the T g of PVA to 64.1 °C and increased the carbonization rate to 8.49 % at 500 °C. The film with 0.6 wt% CDs demonstrated exceptional DPPH/ABTS scavenging rates of 61.56 % and 97.07 %, along with antibacterial efficiencies of 85 % against E. coli and 87 % against S. aureus . In the blueberry storage test, this film inhibited 10 % spoilage and 10 % weight loss within 8 days. Safety assessment test confirms that the total migration of the film is <10 mg/dm 2 . The nanocomposite films we prepared provide a sustainable bio-based solution for food packaging.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Dongqing Ding,Mengyun Chen,Wei Li,Zhousong Luo,Yongpei Xu,Wenhui Zong,Wenzhong Li,Jian Chen
Wilson's disease is a type of neurogenetic disease associated with a disorder of copper metabolism. In general, de‑coppering drugs such as copper chelators and zinc preparations are used to treat this condition. However, the effects of zinc preparations are slow, and long-term use of copper chelators results in some adverse reactions (e.g., nephrotoxicity). In this study, we developed a novel modified microcrystalline cellulose-based adsorbent (MCC-NS) as a gastrointestinal-restricted sequestrant to remove excess copper from the body. Scanning electron microscopy and X-ray photoelectron spectroscopy were performed to characterize the resulting adsorbent (also called de‑coppering cellulose). These methods revealed the successful immobilization of amino and sulfhydryl groups on the surface of MCC. In addition, de‑coppering performance tests revealed the high copper affinity of MCC-NS. This adsorbent removes excess serum copper in a timely manner in Cu-overdosed mice and can reduce copper deposition in tx-j mice, thereby alleviating liver damage. In vivo biosafety evaluation experiments revealed that long-term MCC-NS administration did not injure the primary organs of the mice. Collectively, our findings suggest the potential of as-prepared de‑coppering cellulose as an oral gastrointestinal-restricted copper sequestrant for treating Wilson's disease with few adverse reactions.
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Materials Advances
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2025
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IF 4.7
Fangyuan Ge,Man-hin Kwok,To Ngai
To mitigate the harmful effects of UV radiation, sunscreens are indispensable in sun protection strategies. Sunscreen agents are broadly categorized into two types: inorganic and organic UV filters. Current organic UV filters raise health concerns due to poor photostability and harmful radical generation, while inorganic UV filters often leave white residues on the skin. To address these limitations, we develop a novel method for synthesizing hollow microspheres using cinnamate-functionalized cellulose nanocrystals (Cin-CNCs) and inorganic nanoparticles (SiO2 or TiO2) via Pickering emulsion templating to enhance sunscreen performance. The stabilization mechanism involves synergistic interactions between the hydrolysis products of tetraethyl orthosilicate (TEOS), Cin-CNCs, and SiO2 nanoparticles. The resulting cinnamate-functionalized hollow microspheres exhibit excellent water dispersibility and superior photostability compared to traditional organic UV filters. Unlike conventional inorganic UV filters, they display significantly improved transparency in the visible range and enhanced UV shielding properties, owing to the grafting of cinnamate groups and their unique hollow structure. Both Cin-CNCs/SiO2 and Cin-CNCs/TiO2 hollow microspheres demonstrate superior UV protection capabilities compared to their nanoparticles counterparts. When formulated into sunscreens, they achieve higher SPF values than conventional inorganic UV filters. These findings highlight the potential of cinnamate-functionalized hollow microspheres as a next-generation UV-blocking agent in sunscreen formulations.
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CARBOHYDRATE POLYMERS
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2025
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IF 12.5
Tingting Luo,Zihan Zhang,Nana Zhang,Yufei Liu,Kai Zhang,Lanlan Wei,Lijuan Long,Shuhao Qin,Min He,Jie Yu,Heng Luo
Wounds infected with Staphylococcus aureus ( S.aureus ) represent a significant healthcare challenge. The interaction between the bacterial cell membrane and functional groups of conductive materials induces deformation or rupture of the bacteria, thereby achieving an antibacterial effect. Conductive hydrogels mimic this phenomenon through localized current distribution, offering a promising therapeutic strategy. However, conventional conductive materials like PEDOT:PSS often suffer from phase separation in hydrogels, limiting their applications. To address these limitations, this study engineers a three-dimensional bacterial cellulose (BC) nanofiber template that utilizes hydroxy-mediated hydrogen bonding to adsorb and align PEDOT:PSS within the hydrogel matrix, forming continuous conductive pathways. The composite consists of a conductive moiety made of BC/PEDOT:PSS, which is incorporated into a hydrogel composed of polyvinyl alcohol, polyacrylic acid, and tannic acid. The resulting material achieves a conductivity of 11.1 S/cm and a tensile strain of 605.8 %, significantly surpassing existing benchmarks. The incorporation of BC greatly enhances the hydrogel's mechanical properties and conductivity, making it a promising candidate for wound healing applications.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Xiajun Liang,Fenbo Ma,Yuhui Chen,Xiaochun Liu,Chaoqun Yu,Guoyun Cheng,Dawei Sun,Bin Tang,Chenghe Qin,Lei Xu
Wound healing continues to pose significant challenges in clinical practice, with hydrogels often limited by their fragility, inadequate adhesion, and restricted biological functionalities. To address these issues, a composite hydrogel, consisting of polyvinyl alcohol (PVA), bacterial cellulose (BC), and chitosan oligosaccharide (COS), termed PBC hydrogel, was developed. An evaluation of their mechanical properties, including tensile and compressive strength, was conducted. Notably, the incorporation of BC enhanced these mechanical attributes of the PBC hydrogels. Furthermore, the self-healing and adhesive properties of the PBC hydrogels were assessed, revealing excellent performance in both aspects. In vitro cellular assessments were carried out to evaluate the biological effects of the PBC hydrogels. The results indicated that the PBC hydrogel can effectively promote the proliferation and migration of fibroblasts, as well as upregulate the expression of connective tissue growth factor (CTGF) and downregulate the expression levels of inflammatory cytokines interleukin-1β (IL-1β) and interleukin-6 (IL-6). It is imperative to note that preliminary in vivo results have further validated the effectiveness of the PBC hydrogel in promoting wound healing. This finding provides substantial support for the application of the PBC hydrogel in wound healing, demonstrating its therapeutic potential in promoting wound healing.
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Case Studies in Thermal Engineering
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2025
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IF 6.4
Wenhui Bao,Yini Tan,Zhen Jia,Guoliang Li,Daxin Liang,Wanke Cheng,Hui Chen
Rising global building energy consumption underscores the urgent need for sustainable materials capable of passive thermal regulation. Regenerated cellulose, a renewable and biodegradable polymer, presents promising potential for energy-efficient optical systems; however, achieving reversible light modulation with precise solvent responsiveness remains a significant challenge. This study introduces an optically switchable regenerated cellulose membrane fabricated through an ionic liquid-based dissolution-regeneration process. The material incorporates dioctyl phthalate (DBP) to dynamically generate and remove microdroplet scattering domains during solvent exchange. The membrane exhibits exceptional optical properties: a transparent state with 95.2 % transmittance in ethanol/DBP and a scattering state achieving 78.5 % visible reflectance in water. Mechanistic investigations reveal that DBP microdroplets (∼5 μm) form due to their hydrophobic characteristics and long carbon chain structure, creating dynamic light-scattering interfaces. Thermal performance evaluation demonstrates a remarkable 14 °C temperature modulation between transparent and scattering states during summer conditions. In winter operation, the transparent mode increases indoor temperature by 13.9 °C with a heating power density of 269.2 W·m -2 . By integrating biodegradability, mechanical flexibility, and reversible optical switching capabilities, this membrane offers a groundbreaking solution for energy-adaptive window materials and sustainable building thermal management systems.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Weihua Zou,Xinze Liu,Wenhui Wang,Naike Zou,Delin Sun
Thermochromic phase change material (TC) is a temperature-responsive heat storage material. However, few TCs are renewable. In the present study, a renewable TC (RTC) composed of alizarin , myristyl myristate , and 1-hexadecanol was synthesized, demonstrating a color shift between orange and orange-red during phase transitions. To maintain the shape stability, the RTC was encapsulated within a wood-based cellulose/sodium methylsilicate framework, termed thermochromic wood composite-smart material (TWC-SM). This framework altered the chemical structure of alizarin , resulting in a color shift between greyish-purple ( L : 26 ± 1, a : 4 ± 1, b : −6 ± 1) and deep-purple ( L : 14 ± 2, a : 1 ± 1, b : −3 ± 1) for TWC-SM during phase changes, indicating a distinct thermochromic mechanism compared to RTC. Specifically, TWC-SM appears greyish-purple below 52 °C, where the benzene ring of alizarin features two fixed O groups and an additional -OH group. At temperatures above 70 °C, it turns deep-purple as the -OH group loses a hydrogen ion. TWC-SM exerts a pronounced thermochromic effect, conferring temperature-responsive functionality. Moreover, the solid-liquid phase-changing enthalpy of RTC is 186.78 J/g, and the wood-based cellulose/sodium methylsilicate framework ensures the shape stability of RTC within TWC-SM. Consequently, the average temperature of TWC-SM is at least 5.56 °C higher than that of untreated wood over 60 min following identical thermal treatment. This finding shows the potential of the framework for practical applications in temperature-responsive heat storage materials. This study reveals the structure-activity relationship between RTC and the framework within TWC-SM, which is key to the development of practical applications of RTCs.
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Journal of Macromolecular Science Part B-Physics
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2016
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IF 0.62
Shaoping Yang,Shiyu Fu,Juanjuan Liu,Yiming Zhou
Hydrogels based on cellulose-graft-poly (acrylic acid) copolymers (C-g-AA) were synthesized by graft copolymerization in a phosphoric acid solvent. Fourier transform infrared (FT-IR) spectra confirmed the structure of the C-g-AA. The adsorption behaviors of the hydrogels for Cu(II) and Ni(II) were investigated. The results showed that their adsorption capacity increased as the initial concentrations of metal ions and the pH value of the solution increased. Freundlich and Langmuir isotherm models were employed to analyze the data from batch adsorption experiments. The results indicated that there were very good correlation coefficients for their linearized equations. The maximum adsorption amounts of the hydrogels for the metal ions, based on the Langmuir model, were 182 and 200 mg/g for Cu(II) and Ni(II), respectively. When the initial concentration of metal ions was 1000 mg/g the actual adsorption amounts of the hydrogels for Cu(II) and Ni(II) were 181 and 183 mg/g, respectively.
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Journal of Macromolecular Science Part A-Pure and Applied Chemistry
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2021
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IF 2.168
Shaochun Su,Long Chen,Li Hao,Huayao Chen,Xinhua Zhou,Hongjun Zhou
The loss and overuse of avermectin (AVM) on protecting plants pose a threat to ecosystems. To increase the efficacy of AVM, fluorinated sodium carboxymethyl cellulose (CMC-g-PHFBA) was synthesized by inducing poly 2, 2, 3, 4, 4, 4-hexafluorobutyl methacrylate (HFBA), and AVM was then enveloped in CMC-g-PHFBA (AVM@CMC-g-PHFBA) via hydrophobic interaction. According to the results, the samples exhibited desirable angle contact (min = 58.18°), retention rate (max = 60%, after water washing) and LHC (15.5 mg/cm2) on cucumber leaves. AVM@CMC-g-PHFBA also showed good storage stability with obvious Tyndall effect (size <240 nm and charge <–21 mV) for 11 days, with higher anti-UV property. The loaded AVM nanoparticles can release drugs for 95 h, which can be fitted to a zero-order model under different pH conditions for achieving a prolonged pharmacological action. Moreover, the samples have retained insecticidal activity. Collectively, CMC-g-PHFBA nanoparticles are promising delivery systems of AVM with the adhesive and sustained-release property.
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