INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Boyu Cui,Jiayan Ding,Hao Xie,Tong Ji,Chunmao Yang,Yutong Cui,Xin Shu,Wei Dai,Weihong Wang,Shuang Li
The excessive reliance on traditional petroleum resources poses significant environmental challenges. Fortunately, agricultural straw, which is often regarded as a waste product, has considerable potential for various applications. However, these materials are frequently crushed into particles, thereby neglecting their inherent structural advantages. In this study, wheat straw is utilized in its complete form and converted to a strong and flexible fiber bundle. We employ a top-down approach on whole wheat straw that involves an alkali pretreatment combined with delignification and freeze-drying to obtain highly directional cellulose aggregates. Subsequent twist densification results in the formation of a strong, flexible wheat straw-derived fiber bundle (WFB). WFB exhibits an excellent strength of 203.9 MPa, representing a 3.4 improvement rate in relation to that of the initial straw. This indicates that agricultural waste can be transformed to a high-performance material, embodying the concept of “Waste to Wealth.” In addition, WFB can be further functionalized (e.g., via hydrophobic treatment, dyeing treatment, or incorporation with a conductive material) on the basis of the abundant hydroxyl groups present on its surface. This strategy provides insights into the innovative utilization of straw and promotes its application in wearable textile and smart fiber development.
研究领域:
材料科学
·
环境科学
·
农业科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Cleaner Production
·
2022
·
IF 11.072
Jun Xiong,Jie Yi,Shuai Peng,Zhihui Yang,Yuming Wu,Weiming Wang,Shaofang Lv,Junjun Peng,Chen Xue,Xue Min,Ming Li,Takayoshi Nakamura
Solar steam production is regarded as a potential approach for extracting freshwater from undrinkable water. However, it remains a challenge to acquire a low-cost, salt-resistant, durable and efficient solar evaporator through a simple fabrication process. This work presents a plant transpiration-inspired three-dimensional (3D) solar evaporator fabricated by decorating industrial polyester fiber bundles (PFBs) with inexpensive polypyrrole (PPy). This solar evaporator is named the PPy-PFBs. Intriguingly, PFBs composed of hydrophobic polyester fibers with multiple vertical channels are capable of pumping enough water to the top of the solar evaporator through the capillary effect and storing seven times its mass of water, allowing for salt-resistant. In addition, polyester fiber is resistant to acid, alkali, mildew, and sunlight, making the PPy-PFBs durable. Along with the heat generated from sunlight absorbed by the PPy, the 3D solar evaporator can also gain energy from the environment. Adjusting the exposure height and arrangement of PPy-PFBs can control the evaporation rate . The matrix arranged PPy-PFBs with an exposure height of 6 cm attains a high water evaporation rate of 3.77 kg m −2 h −1 with an energy conversion efficiency of 155.77%. Outdoor experiments demonstrate that the PPy-PFBs can extract freshwater from non-drinkable water. 1 m 2 of PPy-PFBs can produce about 26 kg of fresh water per day, which is enough to meet the daily drinking water needs of 10 adults. This low-cost, easily made, salt-resistant, durable and high evaporation rate solar evaporator is appealing to alleviate the global freshwater crisis.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
MACROMOLECULAR CHEMISTRY AND PHYSICS
·
2021
·Vol. 222
·期 17
·2100155
·
IF 2.527
Yuan Chen,Hailiang Wu,Chao Yan,Xiaoqing Wu,Junfu Wei,Jing Fang,Zhili Zhong
Mussel-inspiration is extensively utilized for multifunctional modification on the surface of universal materials. Polyphenols are more and more exploited for mussel-inspired chemistry to replace polydopamine owing to their ubiquitousness and inexpensiveness. Herein, to explore the interfacial properties between fully drawn yarn (FDY) polyester fiber-bundle and epoxy matrix, codeposition of polyethyleneimine/catechol (PEI/CCh) is used to modify FDY polyester fiber-bundles by mussel-inspired method. The orthogonal experiments are performed to obtain the optimum formula which is 2 g L −1 PEI, 1 g L −1 CCh, and 24 h codeposition time. The results of surface structure characterization measured via Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscope, and energy dispersive X-ray indicate that PEI/CCh aggregates are uniformly coated on fiber surface to fabricate continuously lamellar structures. The surface hydrophilicity and water infiltration rate constant are acquired by water contact angle. These results elucidated that FDY fiber surface is successfully endowed with polyethyleneimine/catechol aggregates and surface hydrophilicity greatly improved. Single fiber-bundle pull-out tests are conducted to evaluate the interfacial strength. Compared to pure fiber-bundle specimens, there are 67.57%, 57.63%, and 45.07% increase of initial debonding load, peak load, and interfacial shear strength, respectively.
研究领域:
材料科学
·
表面化学
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Yibing Chen,Youquan Li,Yipeng Quan,Wenting Qian,Pu Zhang,Jun Xiong,Ming Li
Interfacial solar desalination is a promising technology to address global freshwater scarcity. However, low evaporation rates, complex manufacturing processes, and poor salt resistance have hindered the practical application of solar evaporators. In this study, a three-dimensional (3D) solar evaporator named DB-PFB was developed by dyeing industrial dispersion black (DB) onto polyester fiber bundle (PFB). Vertical channels in the PFB rapidly transport water from the bottom to the top through the wicking effect. This, together with hydrophobic polyester fibers, prevents salt accumulation, ensures stable desalination performance and achieves zero liquid discharge. The 3D DB-PFB can utilize ambient energy and has a stable evaporation rate of about 2.60 kg m –2 h −1 for desalination of 20 wt% brine at 1-solar intensity. Continuous evaporation allows the collection of salt crystals and dye wastes in the distillation tank. Long-term indoor and outdoor desalination experiments (about 150 h each) have proven the durability of the DB-PFB. 1 m 2 DB-PFB can produce approximately 18 kg of freshwater per day from 20 wt% brine, meeting the daily drinking water needs of six adults. This efficient, easy-to-manufacture, and salt-resistant solar evaporator offers a feasible solution to alleviate global freshwater scarcity.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Xin-Xin Chen,Yu-Xiong Ju,Bei Zhang,Xiao-Rui Ge,En-Jiang Liu,Dong-Yang Zhang,Jun Wang,Xiao-Hui Yao,Wei-Guo Zhao,Tao Chen
Most of the developed flexible hydrogel supercapacitors struggle to maintain their electrochemical stability and structural integrity under tensile strain. Therefore, developing a flexible supercapacitor with excellent mechanical properties and stable electrochemical performance under different strains remains a challenge. Based on the previous cartilage-like structure, we designed a new coarse nanofiber bundle and ordered network. A coarse nanofiber bundle and ordered network skeleton was constructed by directional freezing and filled with polyvinyl alcohol (PVA) to serve as a soft matrix to prepare PVA-SNF-CNTs-PPy-3 hydrogel electrode, which has high tensile strength (6.22 MPa) and fatigue threshold (8759.8 J/m 2 ). In addition, the loading of carbon nanotubes and polypyrrole onto the SNF-ordered network enabled the conductive material to form an ordered conductive energy storage network along the skeleton, providing an area-specific capacitance of up to 23.96 F/cm 2 . The coarse nanofiber bundle and ordered network provided supercapacitors with the least capacitance consumption under 150 % deformation, and the capacitance retention was >98.2 %. After repeated stretching (3000 times), the capacitance remained >91.45 %. This study provides new ideas for the development of flexible supercapacitors with high capacitance and high mechanical reliability.
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Frontiers in Neuroanatomy
·
2015
·
IF 3.544
Hou Bing,Zhang Dan,Zhao Shan,Wei Mengping,Yang Zaifu,Wang Shaoxia,Wang Jiarui,Zhang Xin,Liu Bing,Fan Lingzhong,Li Yang,Qiu Zilong,Zhang Chen,Jiang Tianzi
Efficient optical clearance is fundamental for whole brain imaging. In particular, clearance of the brain without membrane damage is required for the imaging of lipophilic tracer-labeled neural tracts. Relying on an ascending gradient of fructose solutions, SeeDB can achieve sufficient transparency of the mouse brain while ensuring that the plasma membrane remains intact. However, it is challenging to extend this method to larger mammalian brains due to the extremely high viscosity of the saturated fructose solution. Here we report a SeeDB-derived optical clearing method, termed FRUIT, which utilizes a cocktail of fructose and urea. As demonstrated in the adult mouse brain, combination of these two highly water-soluble clearing agents exerts a synergistic effect on clearance. More importantly, the final FRUIT solution has low viscosity so as to produce transparency of the whole adult rabbit brain via arterial perfusion, which is impossible to achieve with a saturated fructose solution. In addition to good compatibility with enhanced yellow fluorescent protein, the cocktail also preserves the fluorescence of the lipophilic tracer DiI. This work provides a volume-independent optical clearing method which retains the advantages of SeeDB, particularly compatibility with lipophilic tracers.
研究领域:
神经科学
·
生物医学工程
·
光学成像
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Polymers
·
2022
·Vol. 14
·期 21
·4722
·
IF 4.967
Yin Tang,Tang Zhu,Zekai Huang,Zheng Tang,Lukun Feng,Hao Zhang,Dongdong Li,Yankun Xie,Caizhen Zhu
Nanofiber bundles with specific areas bring a new opportunity for selective adsorption and oil/water or air separation. In this work, nanofiber bundles were prepared by the electrospinning of immiscible polystyrene (PS)/N-trifluoroacetylated polyamide 6 (PA6-TFAA) blends via the introduction of carbon nanotubes (CNTs) or a copolymer of styrene and 3-isopropenyl-α, α’-dimethylbenzene isocyanate (TMI), which was denoted as PS-co-TMI. Herein, CNT was used to increase the conductivity of the precursor for enhancing the stretch of PS droplets under the same electric field, and PS-co-TMI was used as a reactive compatibilizer to improve the compatibility of a PS/PA6-TFAA blend system for promoting the deformation. Those obtained nanofiber bundle membranes showed an increase in tensile strength and high hydrophobicity with a water contact angle of about 145.0 ± 0.5°. Owing to the special structure, the membranes also possessed a high oil adsorption capacity of 31.0 to 61.3 g/g for different oils. Moreover, it exhibits a high potential for gravity-driven oil/water separation. For example, those membranes had above 99% separation efficiency for silicon oil/water and paraffin wax/water. Furthermore, the air filtration efficiency of nanofiber bundle membranes could reach above 96%, which might be two to six times higher than the filtration efficiency of neat PS membranes.Keywords:electrospinning;nanofiber bundles;polymer blend;oil/water separation;air filtration
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Materials Research and Technology-JMR&T
·
2022
·
IF 6.267
Wenxi Yan,Shan Zhang,Yinchuan Wang,Guiyong Xiao,Yupeng Lu
Hydroxyapatite (HA), an artificial bioceramic with high similarity to the mineral constituent of vertebrate bones and teeth, has attracted extensive attention due to its excellent bioactivity and biocompatibility. The micro-nano structure of HA is a vital factor in expanding its application in biomedicine as well as in many other industrial fields. What's more, HA nanofiber exhibits outstanding properties among its various morphologies. In this work, HA bundles with the same oriented nanofibers are successfully synthesized in a solvothermal reaction system by controlling the amount of carbonate addition and using oleic acid as a template. Under the synergistic effect of different molar ratios of hydroxide ion to carbanion ([OH − ]/[CO 3 2− ]), HA nanofibers gradually increase their aspect ratio and tend to grow into oriented bundles. This product has admirable flexibility and good mechanical strength, as well as great application potential. Based on the characterization and analysis results, we take a further exploration of the effects of ionic interference ([OH − ]/[CO 3 2− ]) and charge balance (CO 3 2− vs PO 4 3 , Na + vs Ca 2+ ) on the microstructure, phase composition and thermal stability of HA nanofibers bundles (HANBs) in the solvothermal system during the chemical reaction process. And then, the formation and assembly mechanism of HANBs is proposed, and the role of van der Waals forces in this process is also discussed. Furthermore, the generation of this clustered state may be influenced by the shift in the dissolution equilibrium of insoluble carbonates during synthesis. This research provides a new direction for controlling the micro-nano morphology of HA to further obtain products with desirable properties.
研究领域:
材料科学
·
生物医学工程
·
化学
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 62
·57190-57198
·
IF 3.289
Lili Gao,Xuelian Li,Xiaodong Li,Jianli Cheng,Bin Wang,Zhiyu Wang,Changming Li
Coaxial yarn electrodes composed of activated carbon fibers tows and MoS2 nanosheets (ACFTs/MoS2) are synthesized by a facile hydrothermal approach. The active material, hierarchical MoS2 nanosheets, delivers a high specific capacitance of 308.5 F g−1 at scan rate of 5 mV s−1. Solid-state supercapacitors (SCs) in the planar format based on the ACFTs/MoS2 yarn electrode in PVA/H3PO4 gel electrolyte show an excellent energy density of 3.76 mW h g−1 at constant current density of 0.21 A g−1, a high power density of 474.49 mW g−1 at 3.16 A g−1 and a long cycle life with a capacitance retention as high as 97.38% even after 6000 times of charging–discharging under 2.21 A g−1. Furthermore, the SCs in a planar format represent superior combination feasibility when combined in parallel or series, approaching the theoretical value. Additionally, twisting SCs made from ACFTs/MoS2 yarn electrodes show good flexibility and electrochemical stability, which maintain 97.6% of their initial capacitance after being bent to different angles. These outstanding performances can be ascribed to the high accessible surface area for the electrolyte, the short path for ion diffusion provided by the MoS2 nanosheets (NSs), as well as the effective transport channels for electrons provided by the carbon fibers. The rough surface and oxygen containing groups on the activated carbon fiber offer robust anchor sites for MoS2 NSs, which not only facilitate electron transport but also provide strong adhesion between MoS2 NSs and carbon fibers.
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
产品关联
DOI
高影响因子
CHINESE CHEMICAL LETTERS
·
2023
·
IF 9.1
Fengxian Zhang,Xupo Liu,Ye Chen,Miao Tian,Tianfang Yang,Jing Zhang,Shuyan Gao
Fe-N X /C electrocatalysts have aroused extensive interest in accelerating sluggish oxygen reduction reaction (ORR) kinetics as potential alternatives to platinum catalysts in rechargeable Zn-air batteries (ZABs). However, the low density and poor accessibility of Fe-N X sites have severely restricted the electrocatalytic performance of Fe-N X /C. Herein, Fe, N co-doped ordered mesoporous carbon fiber bundles are prepared through a ligand-assisted strategy with nitrogen-rich 1,10-phenanthroline as space isolation agent. 1,10-Phenanthroline reveals a six-membered heterocyclic structure containing abundant nitrogen species to tightly coordinate with Fe ions , which is conducive to achieving high-density Fe-N X sites. Meanwhile, the adoption of SBA-15 as hard-templates enables the catalysts with highly ordered channels and large specific surface areas, improving the accessibility of Fe-N X sites. The optimal catalyst (PDA-Fe-900) demonstrates a positive half-wave potential of 0.84 V ( vs. RHE) in alkaline solution, outperforming the commercial Pt/C (0.83 V). In addition, PDA-Fe-900 delivers comparable ORR performance to commercial Pt/C in acidic electrolyte. Impressively, when PDA-Fe-900 is employed as an air cathode, it achieves large power densities of 163.0 mW/cm 2 in liquid-state ZAB and 116.6 mW/cm 2 in the flexible solid-state ZAB. This work provides an efficient ligand-assisted pathway for fabricating catalysts with dense and accessible Fe-N X sites as high-performance ORR electrocatalysts for ZABs.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Matter
·
2024
·
IF 17.3
Yuanhao Chen,Cristian Valenzuela,Yuan Liu,Xiao Yang,Yanzhao Yang,Xuan Zhang,Shaoshuai Ma,Ran Bi,Ling Wang,Wei Feng
Skeletal muscles are composed of neuromuscular fiber bundles that combine the sensing capability of muscle spindle fibers with the actuation function of muscle fibers. However, it is difficult to develop artificial soft neuromuscular fiber bundles (NeuroMuscles) with sophisticated sensing-diagnosis-actuation autonomy. Herein, a unique rotational molding strategy is proposed to fabricate core-multishelled fibers with a liquid metal core, liquid crystal elastomer actuation layer, and adhesion sheath. The NeuroMuscles are developed by seamlessly welding multiple fibers through a self-reinforcing interface featuring independent channels for stimulus source and perception signals with built-in adaptive feedback. When integrated with NeuroMuscles, artificial arms and fingers can not only sense their own motion in real time but also detect the object’s surfaces. Importantly, the biomimetic knee-jerk reflex of artificial legs is achieved by establishing adaptive feedback within NeuroMuscles without off-board control systems for signal processing. The NeuroMuscles could function as indispensable components for implantable muscular reinforcements, next-generation soft machines, and beyond.
研究领域:
生物医学工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2014
·
IF 2.726
Xiong Song,Qiang Ru,Yudi Mo,Shejun Hu,Bonan An
A novel fiber bundle nanostructured ZnCo 2 O 4 (ZCO) is prepared by a typical and facile co-precipitation method using oxalic acid as complex agent. XRD, SEM, and TEM analyses show the as-prepared ZCO crystals have a high purity and a good crystallinity, and the ZCO nanowires with a diameter of 10–30 nm are composed of uniform ZCO nanocrystals with a size of 30–60 nm. The novel structure with enough free space is beneficial to improving the electrochemical performance. The as-prepared ZCO fiber bundle used as an anode material for lithium-ion batteries exhibits a high specific capacity of 1026.3 mA h g −1 at a current rate of 100 mA g −1 after 100 cycles, as well as a high power capability at elevated current rates, i.e., 1015.1 and 606.2 mA h g −1 at current rates of 500 and 2000 mA g −1 , respectively. It has a great prospect for the application of anode materials for lithium-ion batteries.
研究领域:
材料科学
·
电化学
·
纳米科技
·
能源存储
·
无机功能材料
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）