Journal of Materials Chemistry A
·
2023
·Vol. 12
·期 3
·1617-1628
·
IF 11.9
Meng Ma,Wenqin Shao,Qindan Chu,Wenting Tao,Si Chen,Yanqin Shi,Huiwen He,Yulu Zhu,Xu Wang
With the strong support of the government for emerging technology industries, electromagnetic waves have brought convenience to people's lives, but also become an undeniable new source of pollution. Therefore, it is vital to develop new high-performance electromagnetic shielding materials. Herein, we designed a well-structured asymmetrical gradient multilayer composite film by constructing a controllable electromagnetic gradient. Using cellulose nanofibers as the matrix, a layer-by-layer filtration method was used to rationally distribute FeCo@rGO and MXene fillers to build an ordered multilayer structure that provides alternating conductive and magnetic gradients. Owing to gradient absorption shielding and reflection mechanisms for electromagnetic waves within the film layer, the EMI shielding efficiency (EMI SE) of the asymmetrical gradient alternating six-layer composite film reached 45.2 dB (X-band), and the reflection coefficient was reduced to 0.71 when 20 wt% filler was added. In addition, this composite film has good thermal conductivity and mechanical properties, exhibiting thermal conductivity of 2.90 W (m−1 K−1) and tensile strength of 26.2 MPa. This strategy provides a feasible approach for designing electromagnetic shielding composite materials with adjustable electromagnetic properties and has significant practical significance in expanding the application of MXene-based composite materials.
研究领域:
材料科学
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电磁学
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纳米技术
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产品关联
DOI
高影响因子
CELLULOSE
·
2020
·Vol. 27
·期 15
·8695-8708
·
IF 4.21
Zhang Hui,Liu Yan,Cui Sisi,Zhou Yifa,Hu Junli,Ma Jiangang,Liu Yichun
Abstract Electrospun cellulose nanofibers are promising biomaterials but are suffering from the use of unfavorable organic solvents during the electrospinning process. In this manuscript, we used the periodate oxidation—adipic acid dihydrazide crosslinking strategy to fabricate electrospun cellulose nanofibers. Periodate oxidation of cellulose generated water soluble aldehyde cellulose, which thus allowed for the electrospinning in aqueous solution and avoided the use of unfavorable organic solvents. The following crosslinking with adipic acid dihydrazide made the nanofibers water resistant. The results show that the prepared cellulose nanofiber mats show moderate wet mechanical strength around 1 MPa, are able to absorb water equal to 30 times of their own weight, can degrade gradually by hydrolysis, and are cytocompatible. These cellulose nanofibers are expected to find applications in biomedical fields such as wound healing and tissue regeneration. Graphic abstract
研究领域:
材料科学
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生物学
·
医学
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产品关联
DOI
高影响因子
Food Structure-Netherlands
·
2025
·
IF 5.9
Berkani Somia,Lei Zhang,Ning Ren,Xue Gao,Cancan Shan,Mei Cui,Rongxin Su,Maina Mwangi,Renliang Huang
Surimi-based products with high nutritional content are gaining popularity. Improving surimi gel properties is crucial for future processing and product quality. In this study, phosphorylated cellulose nanofibers (PCNFs) were used as a textural enhancer. Firstly, PCNFs are special fibers with active phosphate groups and high surface hydrophilicity, making them ideal as surimi gel additives. Furthermore, the creative use of PCNFs at a concentration of 0.15 wt% (0.15 g/100 g surimi) greatly improves the surimi gels' microstructure, including hardness by 89.57%, gumminess by 162.31%, and chewiness by 216.63%, and water holding capacity due to a synergistic effect between nanofibers and myosin. A model was created to illustrate the interaction between PCNFs and myosin in the surimi matrix. The model provides insights into the role of cellulose-based additives in food gels, aiming to develop innovative surimi products and provide guidance for creating high-quality cellulose-additive foods and understanding their functions in meat gel systems.
研究领域:
食品科学与技术
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聚合物纳米复合材料
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功能性食品添加剂
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DOI
高影响因子
CELLULOSE
·
2020
·Vol. 27
·期 7
·4029-4041
·
IF 4.21
Wang Xiaojun,Li Runyu,Zeng Jinsong,Cheng Zheng,Wang Bin,Ding Qijun,Gao Wenhua,Chen Kefu,Xu Jun
Abstract Plant fiber isolated cellulose nanofibers (CNFs) are the materials with excellent mechanical properties. However, application of CNFs in polymer reinforcement is normally unsatisfactory due to its intertwined size distribution. Efforts to produce uniform sized CNFs have yet to be studied. In present work, spiral microchannel was used to fractionate CNFs based on the balance between inertial lift force (F L ) and Dean drag force (F D ) exerted on CNFs. The results showed that the smaller length of CNFs equilibrated near the inner microchannel while the larger length of CNFs occupied the equilibrium position away from the inner wall. With the increase of flowrates from 50 to 220 μL/min, fractionation efficiency between inner and middle outlet (E IM ) of spiral microchannel A with larger radius curvature (R) from 5 to 15 mm increased from 0 to 75.4%. However, stronger Dean flow attributing to decrease of R (3 mm to 10 mm) of single spiral microchannel B enabled satisfactory fractionation efficiency of 70.9% at flowrate of 90 μL/min. Moreover, the fractionation efficiency of double spiral microchannel with twice as length as microchannel A and three times as length as microchannel B was lower than that of single spiral microchannel at flowrate lower than 90 μL/min. Furthermore, this study exhibited a versatile and simple method for CNFs fractionation with high fractionation efficiency. Graphic abstract
研究领域:
材料科学
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化学工程
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产品关联
DOI
高影响因子
Nuclear Science and Techniques
·
2018
·Vol. 29
·期 7
·1-8
·
IF 1.085
Bian Zhong-Xuan,Miao Xia-Ran,Lin Jin-You,Tian Feng,Bian Feng-Gang,Li Hui
Cellulose nanofibrils (CNFs) are a type of natural nanomaterials extracted from plants and animals that have expanding applications in numerous areas benefiting from their inherent properties of renewability, biodegradability, and sustainability. For energy consumption reduction, CNFs were extracted from raw jute fibers, which were not pretreated in a hot alkali or acid solution, by TEMPO-mediated oxidation. Synchrotron radiation wide-angle scattering was performed to realize the crystallization of the CNF crystallites; Fourier transform infrared spectroscopy, transmission electron microscopy, and field-emission scanning electron microscopy were used to characterize the changes in chemical groups and visualized morphology of CNFs. The simplified preparation and shortened cycle should further help the study of the structure–function relationship of jute CNFs subjected to chemical modification.
研究领域:
材料科学
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植物学
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化学工程
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产品关联
DOI
高影响因子
Polymers
·
2022
·Vol. 14
·期 7
·1313
·
IF 4.967
Qilin Lu,Jiayin Wu,Hanchen Wang,Biao Huang
Fluorescent cellulose nanofibers (FCNFs), with a high yield, were prepared via one-pot hydrolysis and the grafting reaction of cellulose with thiazolipyridine carboxylic acid (TPCA). The hydrolysis and Fischer esterification of cellulose were conducted under microwave-hydrothermal conditions; meanwhile, TPCA formation was induced by the dehydration reaction between L-cysteine and citric acid. The effects of the reaction temperature and reaction time on the yield and performance of FCNF were investigated. The morphology and size, surface chemical property, crystal structure, thermostability, and fluorescent performance of FCNF were characterized. The results revealed that the yield of FCNF reached 73.2% under a microwave power of 500 W, reaction temperature of 110 °C, and reaction time of 5 h. The FCNF obtained presents a short rod-like morphology. The crystallinity of the FCNFs is 80%, and their thermal stability did not decline significantly. Additionally, the fluorescent performance of the FCNFs is excellent, which results in them having good sensitivity to chloride ions. The good fluorescent performance and significant responsiveness to chloride ions of FCNFs lead to them having broad prospects in bio-labeling, biosensing, information storage, chloride ion detection, among others.Keywords:fluorescent cellulose nanofibers;high yield;one-pot;green preparation;chloride ion detection
研究领域:
材料科学
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生物技术
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产品关联
DOI
PubMed
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Yanyi Duan,Jiangjiexing Wu,Aihua Qiao,Xin Guo,Xiaotian Ge,Wei Qi,Anastasia Penkova,Rongxin Su
Marine optical devices face significant biofouling challenges, which compromise their transparency and disrupt their functionality. Existing coatings, typically relying on toxic biocides or dynamic surfaces, harm the marine environment and fail to meet the signal stability required for high-performance equipment. In this study, we introduce a fully bio-based approach to transparent antifouling coatings by developing zwitterionic cellulose nanofibers (ZCNF) modified with lysine, arginine, and histidine. Notably, this innovative modification exhibits enhanced hydrophilicity and antifouling properties compared to unmodified cellulose nanofibers, while also forming a stable antifouling surface, overcoming the key limitations of conventional materials. Laboratory and marine field tests demonstrate the remarkable long-term performance of ZCNF coatings, achieving up to 90 % antifouling efficiency in controlled environments and 80 % in real-world conditions after 150 days. This work provides a sustainable alternative for marine optical coatings, advancing the application of bio-based nanomaterials to address real-world marine challenges.
研究领域:
材料科学
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海洋生物学
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环境科学
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产品关联
DOI
高影响因子
AATCC Journal of Research
·
2021
·
IF 1.127
Sayed Waqar Azhar,Fujun Xu,Yiping Qiu
In recent decades, rational management of agricultural residues presented a new approach for extraction, characterization, and utilization of cellulose nanofibers (CNF). In this context, the valorization of flaxseed fibers, providing an annual yield of millions of metric tons, as an abundant sustainable fiber source, was carried out. The cleaned and ground raw material was delignified and bleached, followed by 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO)/NaBr/NaClO oxidization along with mechanical homogenization. The resulting extracted cellulose and cellulose nanofibers were characterized by various analytical methods. The overall yield of CNF based on the raw material was 31.2% ± 1.5%. This study explored a simple method for converting flaxseed fibers to fluorescent, high quality, nano-sized cellulosic precursors for novel applications in pharmaceutical and bio-composite applications.
研究领域:
材料科学
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生物工程
·
农业科学
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DOI
高影响因子
National Science Review
·
2019
·Vol. 7
·期 1
·73-83
·
IF 13.222
Gao Huai-Ling,Zhao Ran,Cui Chen,Zhu Yin-Bo,Chen Si-Ming,Pan Zhao,Meng Yu-Feng,Wen Shao-Meng,Liu Chuang,Wu Heng-An,Yu Shu-Hong
Bio-sourced nanocellulosic materials are promising candidates for spinning high-performance sustainable macrofibers for advanced applications. Various strategies have been pursued to gain nanocellulose-based macrofibers with improved strength. However, nearly all of them have been achieved at the expense of their elongation and toughness. Inspired by the widely existed hierarchical helical and nanocomposite structural features in biosynthesized fibers exhibiting exceptional combinations of strength and toughness, we report a design strategy to make nanocellulose-based macrofibers with similar characteristics. By combining a facile wet-spinning process with a subsequent multiple wet-twisting procedure, we successfully obtain biomimetic hierarchical helical nanocomposite macrofibers based on bacterial cellulose nanofibers, realizing impressive improvement in their tensile strength, elongation and toughness simultaneously. The achievement certifies the validity of the bioinspired hierarchical helical and nanocomposite structural design proposed here. This bioinspired design strategy provides a potential platform for further optimizing or creating many more strong and tough nanocomposite fiber materials for diverse applications.
研究领域:
材料科学
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生物工程
·
纳米技术
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DOI
高影响因子
Polymers
·
2025
·Vol. 17
·期 19
·2586
·
IF 4.9
Jia-Ning Meng,Dan Qiu,Tao Yuan,Ya Li,Huang Huang,Ling-Hui Wang,Ya-Juan Wang,Rui Wang,Chang-Zi Jin
Cellulose nanofibers (CNFs) are highly promising nanocarrier materials, boasting excellent drug adsorption and loading potential due to their tunable hydrophilic/lipophilic interfaces. This study is the first to report the successful synthesis of maleic anhydride-modified CNFs (MA-CNFs) via the esterification of CNFs using a solvent-free molten maleic anhydride (MA) system, and it systematically evaluates MACNFs’ dual adsorption performance for water-soluble and lipophilic drugs. A new characteristic peak at 1723 cm −1 in FT-IR confirms the formation of ester bonds, proving the successful grafting of MA onto CNFs. XRD analysis shows that the crystallinity slightly increases from 72.56% to 74.06%, indicating the reaction mainly occurs in the amorphous region. After modification, the material’s hydrophobicity is significantly enhanced (water contact angle: ~63.3° for CNFs vs. ~74.9° for MA-CNFs), and its BET specific surface area rises sharply from 5.03 to 26.29 m 2 /g. These structural advantages collectively enable MA-CNFs to have adsorption capacities for folic acid (FA, water-soluble) and vitamin E acetate (VEA, lipophilic) that are 1.15 and 2.04 times those of CNFs, respectively. The results demonstrate MA-CNFs are high-performance functional materials fabricated via a green method, with good biocompatibility.
研究领域:
纳米医学
·
药物递送
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生物材料
·
高分子化学
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药剂学
·
表面改性
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产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Rui Ding,Min Zhang,Lujia Xuan,Zhengyuan Ma,Yixiao Qu,Zheng Liu,Hui He,Ruoyang Chen
Spatial control of nanoreactions in solution holds prospects for various applications. Great efforts have been made on the exploration of control methods. However, most of them require applications of specific instruments and addition of templates/additives, as well as complicated operations, to transform the reaction from homogeneous to heterogeneous, thus limiting their potential applications. Here we report a facile but effective strategy for spatially controlling nanoreactions within a sessile drop, by simply modulating its evaporation dynamics. We take the reaction between cellulose nanofibers (CNFs) and gold precursors as an example and achieve the uniform and ring-like depositions of gold nanoparticles (AuNPs) by separately evaporating drops of mixture of CNFs and gold precursors on glass surfaces at room temperature and enhanced temperature; meanwhile, we achieve the eye-like deposition of AuNPs by evaporating the drop of gold precursors on a CNF-textured surface. We further demonstrate the applicability of this strategy to fabricate the substrate for surface enhanced Raman spectroscopy with high sensitivity and low limit of detection (down to single bacterial level). Our findings not only bridge gaps between the modulation of drop evaporation and the control of chemical reaction, but also provide a novel strategy of spatially controlling nanoreactions for a wide range of applications, e.g., sensor nanofabrication, materials chemistry, microelectronic engineering and environmental science.
研究领域:
材料科学
·
化学工程
·
纳米技术
·
环境科学
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产品关联
DOI
高影响因子
ADVANCED MATERIALS
·
2018
·Vol. 30
·期 30
·1801347
·
IF 21.95
Chao Jia,Chaoji Chen,Yudi Kuang,Kun Fu,Yilin Wang,Yonggang Yao,Spencer Kronthal,Emily Hitz,Jianwei Song,Fujun Xu,Boyang Liu,Liangbing Hu
Advanced textiles made of macroscopic fibers are usually prepared from synthetic fibers, which have changed lives over the past century. The shortage of petrochemical resources, however, greatly limits the development of the textile industry. Here, a facile top-down approach for fabricating macroscopic wood fibers for textile applications (wood-textile fibers) comprising aligned cellulose nanofibers directly from natural wood via delignification and subsequent twisting is demonstrated. Inherently aligned cellulose nanofibers are well retained, while the microchannels in the delignified wood are squeezed and totally removed by twisting, resulting in a dense structure with approximately two times higher mechanical strength (106.5 vs 54.9 MPa) and ≈20 times higher toughness (7.70 vs 0.36 MJ m −3 ) than natural wood. Dramatically different from natural wood, which is brittle in nature, the resultant wood-textile fibers are highly flexible and bendable, likely due to the twisted structures. The wood-textile fibers also exhibit excellent knitting properties and dyeability, which are critical for textile applications. Furthermore, functional wood-textile fibers can be achieved by preinfiltrating functional materials in the delignified wood film before twisting. This top-down approach of fabricating aligned macrofibers is simple, scalable, and cost-effective, representing a promising direction for the development of smart textiles and wearable electronics.
研究领域:
材料科学
·
纺织工程
·
生物质材料
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产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）