CHEMICAL PHYSICS LETTERS
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2025
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IF 3.1
Hainan Zhang,Shuhui Liang,Jianwei Zhang,Xiangge Han,Weiqi Zhou,Jia Gao,Yaohua Li,Shuliang Dou,Yao Li,Feifei Ren
Vanadium dioxide (VO₂) undergoes reversible metal–insulator transitions at critical temperature of 68 °C, rendering it promising for tunable electromagnetic applications. Here, Cr-doped VO₂/Ethyl cellulose (EC) composites are synthesized to raise the transition temperature to 87 °C while retaining shielding effectiveness values of 9.9–26.3 dB (X-band) and 10.2–25.2 dB (Ku-band). Notably, the surface temperature of material plateaus at 70 °C after exposure to one sun for 10 min, preventing passive phase transitions under light exposure. This work provides valuable insights into the design of intelligent electromagnetic interference shielding materials with active thermal regulation capabilities.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Waqar Iqbal,Rashda,Hongzhen Cai,Jiankang Zhang,Keyan Yang,Xiangsheng Han,Shanshan Xu
The widespread pollution of water bodies with dumped antibiotics from hospital effluents, pharmaceutical wastewaters, and surface water poses a severe threat to ecosystems and human health, primarily due to the emergence of antibiotic-resistant pathogens. This study introduces an innovative electrospun cuprammonium cellulose (Cel) membrane integrating Zeolitic Imidazolate Framework-8 (ZIF-8), a metal organic framework (MOF), aimed at efficiently removing tetracycline (TC) and ciprofloxacin (CIP) in an aqueous environment. The inclusion of ZIF-8 enhances the membrane's adsorption capacity due to its high surface area and the hydrophilicity of Cel, further improving the membrane's mechanical and chemical stability. The resulting Cel/PAN@ZIF-8 composite membrane exhibited remarkable antibiotic adsorption efficiency, achieving up to 218.21 mg. g −1 for TC and 175.88 mg. g −1 for CIP, with a maximum ZIF-8 loading (4 wt%). Additionally, the membrane showed a significant antibacterial effect against Escherichia coli ( E. coli ) and Staphylococcus aureus ( S. aureus ), demonstrating its dual functionality in both pollutant removal and microbial disinfection. The adsorption kinetics followed a pseudo-second-order model, consistent with previous studies. The isotherm analysis conformed to the Langmuir model, which implies monolayer adsorption on homogeneous surfaces. The membrane exhibited high reusability, maintaining adsorption efficiencies of 88.66 % and 83.38 % after five cycles for TC and CIP, respectively, highlighting its potential for long-term use. XPS spectroscopy was employed to explore the potential adsorption mechanism for CIP and TC, with results suggesting that hydrogen bonding, π-π interactions, and electrostatic interactions play a key role in the adsorption process. The synergistic effect of ZIF-8 nanomaterials with biocompatible cellulose-based materials presents a promising approach to mitigating antibiotic contamination and combating microbial resistance. These results offer a low-cost and environmentally sustainable approach for wastewater treatment, with significant implications for public health and long-term environmental remediation.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Yide Liu,Jiuyong Yao,Kai Li,Yueying Zhang,Shengkang Wang,Xiankai Li,Yanzhi Xia
MXene-based coating has been employed in bio-based flexible electronics, smart textile and wearable sensors due to its unique electrical and mechanical properties. Although having broader applications, producing stable and sustainable oxidation-resistant aqueous coating of MXene keeps challenging because of its high sensitivity to oxidation when exposing to oxygen and water. Herein, antioxidant aqueous coating of MXene modified by carboxymethyl cellulose (CMC) was produced by effective interaction of intercalation-covering on Mxene nanosheets surface. During sonicating MXene in aqueous CMC solution, CMC not only suppresses the oxidation of MXene, but also stabilizes the MXene coating by electrostatic repulsion effect. Furthermore, MXene coating was found to be capable of coating on cotton fabric (CF) tightly after introducing metal ion (i.e., Al 3+ ) with cross-linking effect. When being served as textiles, CF coated with antioxidant MXene not only possesses superior conductivity (0.11 S cm −1 ), photothermal effect and enhanced flame retardancy, but also enables to remain breathability, flexibility and washability, demonstrating favorable potential applications in flexible electronics, flame retardancy and wearable sensors.
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MACROMOLECULAR RAPID COMMUNICATIONS
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2025
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IF 4.3
Bin Yang,Kun Wang,Xiaoming Shi,Yongxian Zhao,Junyi Chen
Tough and stretchable elastomeric resins are useful materials, particularly for coatings and additive manufacturing, which constructs 3D objects through the successive deposition of curable materials. Though elastomeric resins are valued for their flexibility and mechanical resilience, remain limited in availability. In this work, a photocurable resin capable of producing highly elastic material is designed and synthesized. The resin is derived from polybutadiene-based thermoset polyurethane, which is degraded and functionalized through olefin cross-metathesis reaction. The elastomeric resin can be efficiently cured by UV light, affording robust elastomers with an excellent elongation rate (>1300%). The study reveals that the molecular architecture of the resin plays an important role in UV curing and the resulting elastomer properties. Model studies suggest the fragment architecture within the resin prevents shrinkage during UV-curing, which is a common and undesired phenomenon for photocurable elastomers. Moreover, the elastomeric resin's physical properties are tuned by incorporating a cellulose-based reinforcing component (CA-MA) and systematically adjusting the formulation. Tensile testing indicated that the addition of CA-MA significantly enhanced the modulus and toughness (46 MJ m −3 ) of the UV cured elastomer. Finally, the resin is used as a component in SLA-based 3D printing transforming the elastomeric resin into complex 3D structures.
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CELLULOSE
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2025
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IF 4.8
Zhang Haopeng,Liu Miaoqing,Zhao Xiaoying,Zhang Lifeng,Yin Xuewen,Lu Jianjun
In this paper, a new green solvent system \(\text{TEAH/EDA/H}_{2}\) O is used to study the dissolution behavior of microcrystalline cellulose. Through FT-IR, XRD, TG, DSC and other characterization methods and molecular dynamics simulation experiments, the results show that this solvent system has excellent solubility for cellulose at low concentrations. When the concentration of the solvent system is 18.75 wt% at room temperature, its solubility for cellulose can reach 13.79 wt%, which greatly improves the solubility of cellulose, and the solubility region is increased. It is also found that EDA increased the solubility of cellulose in the solvent by destroying the crystal structure of cellulose in the early stage of the dissolution process. Molecular dynamics (MD) simulation studies have shown that EDA quickly changes the crystal structure and destroys the interchain hydrogen bonds, and forms an elliptical columnar inclusion complex with \(\text{OH}^{-}\) , \(\text{H}_{2}\) O, \(\text{TEA}^{+}\) and cellulose chains to regulate the hydrophilicity of cellulose, thereby achieving efficient dissolution of cellulose in \(\text{TEAH/EDA/H}_{2}\) O solvents.
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JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
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2025
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IF 6.2
Zhukun Zhang,Duo Wang
This paper explores the feasibility of directly using natural cellulose fibers (CF) with uniform microstructure as catalyst supports to prepare carbon nanotubes (CNTs). Six different Ni-based catalysts are prepared using CF, lignin, biochar, activated carbon, Al 2 O 3 , and ZSM-5 as supports and used for CNTs growth. The reaction conditions including the growth temperature (600–800 ℃) and the metal loading (1–9 wt%) are studied for promoting the synthesis of high-quality CNTs. When the metal loading and the growth temperature are fixed at 5 wt% and 750 ℃, the highest degree of graphitization (I D /I G =0.74) and carbon yield (2080 mg/g cat ) are achieved on Ni/CF due to the optimal interaction between the metal and the support. The CNTs deposited on Ni/CF catalysts during methane decomposition mainly follow a tip growth mechanism. The catalytic performance of Ni-based catalysts on CF is superior to that of Fe- and Co-based catalysts, which is beneficial for CNTs graphitization.
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Jiahao Kang,Qiangli Zhao,Min Mao,Yugen Wang,Qiang Mu,Jie Tao,Xiaoliang Zhao,Xinhai He,Jianwei Li
Cellulose-based triboelectric materials present eco-friendly advantages but suffer from restricted electron transfer and humidity-induced charge loss due to inherent hydrogen-bond networks. Herein, a multi-network composite aerogel was fabricated using multi-scale entangled cellulose and regenerated chitosan fibers as a framework. Molecular-level chemical crosslinking, ionic complexation, and hydrogen bonding were integrated with freeze-induced structuring, solvent exchange, rapid desolvation, and ambient drying. The multi-crosslinked network delivers exceptional mechanical robustness (0.37 MPa stress at 50% strain), resilience, and moisture stability (intact structure after 40-day immersion). The aerogel-based triboelectric nanogenerator (TENG) demonstrated high triboelectric outputs (205.8 V, 581.16 mW/m 2 ), fatigue resistance (5000 cycles), humidity responsiveness (70–90% RH), broad humidity adaptability (40–90% RH), wet-environment durability (6800 cycles at 80% RH), and reversible humidity cycling, alongside stable acoustic/electrical signal recognition. The aerogel exhibited recyclability and biodegradability. This work establishes a green manufacturing paradigm for biomass aerogels, bridging sustainable materials engineering with self-powered environmental sensing technologies.
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CARBOHYDRATE POLYMERS
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2019
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IF 6.044
WenBo Du,Amin Deng,Juan Guo,Jian Chen,Huaming Li,Yong Gao
In this work, a novel strategy for the construction of injectable self-healing nanocomposite (NC) hydrogels dominated by reversible boronic ester bonds was demonstrated. Specifically, NC hydrogels were constructed by the solution-mixing of N,N -dimethylacrylamide- stat -3-acrylamidophenylboronicacid statistical copolymers (PDMA- stat -PAPBA) and poly(glycerolmonomethacrylate) (PGMA) chains grafted cellulose nanocrystals (CNC- g -PGMA). Rheology analysis indicated the as-constructed NC hydrogel displayed about 7-fold increase in the storage modulus with a low CNCs loading level of 1.43 wt% in comparison with PGMA/PDMA- stat -PAPBA hydrogel without CNCs. Furthermore, the mechanical strength of the CNC- g -PGMA/PDMA- stat -PAPBA hydrogel was far superior to that of its PGMA/PDMA- stat -PAPBA/CNCs hydrogel counterpart, in which PGMA chains were not covalently grafted on the surfaces of CNCs. Due to reversible boronic ester bonds cross-linking networks, CNC- g -PGMA/PDMA- stat -PAPBA NC hydrogel exhibited excellent self-healing and injectable properties as well as pH/glucose responsive sol-gel transitions. Good biocompatibility was also demonstrated through in vitro cytotoxicity tests.
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CARBOHYDRATE POLYMERS
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2024
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IF 10.7
Dan Qu,Peijun Zhang,Jiaolong Liu,Yan Xu,Eyal Zussman,Bing Wei
Lyotropic chiral nematic cellulose nanocrystals (CNCs) have attracted significant attention and great progress has been made. Investigating their physical parameters, especially the twist elastic constant ( K 22 ), is pivotal for advancing our comprehension of fundamental viscoelastic property of chiral nematic phase. In this study, we demonstrate a straightforward method to simultaneously estimate K 22 and helical twisting power ( K t ) of chiral nematic CNCs. This method involves analyzing rheology properties and electro-response of CNCs, focusing on the rotational dynamics and structural reconfiguration of CNC tactoids under an electric field. By examining the rotation dynamics of CNC tactoids under an electric field, together with the viscosity characterization, the anisotropic dielectric susceptibility (∆χ) of chiral nematic CNC along the helix axis was determined. Subsequently, K 22 / ∆χ n was extracted by analyzing CNC tactoid pitch evolution under an electric field, employing the de Gennes model. The K 22 for different concentrated CNCs is finally estimated by integrating experimental results and theory. It is shown that the chiral nematic CNCs present concentration-dependent K 22 , ranging from 0.05 to 0.14 pN, while K t spans from 0.06 to 0.14 pN/μm. This study offers a comprehensive understanding of the CNC fundamental viscoelastic property and opens up new avenues for K 22 measurement in other lyotropic liquid crystals.
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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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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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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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