Advanced Fiber Materials
·
2023
·Vol. 5
·期 5
·1643-1656
·
IF 16.1
Li Siming,Xu Junwei,Mu Yan,Wang Peng,Zhu Heng,Liu Binhong,Chen Zhe,Han Zilong,Qu Shaoxing
Fatigue-resistant and hysteresis-free composite fibers hold great promise for the next generation of wearable electronic devices. In this study, a novel approach for the fabrication of composite fibers with outstanding elasticity and mechanical stability is proposed. The design incorporates a heterogeneous hierarchical structure (HHS), which mimics the structure of arteries, to achieve enhanced fatigue resistance and hysteresis-free performance. The composite fibers, Ecoflex-polyacrylamide fibers (EPFs), are created through the combination of heterogeneous elastomers and strong interfacial coupling. The results show that the EPFs exhibit exceptional fatigue resistance, being able to withstand up to 10,000 load–unload cycles at strains of 300% without any noticeable changes in their mechanical properties. The potential applications of these EPFs are demonstrated through their use as strain sensors for monitoring human motion in both air and water, as well as in energy-harvesting e-textiles. Graphical Abstract This paper proposes a novel approach for the fabrication of composite fibers with heterogeneous hierarchical structure by mimicking the structure of arteries, to achieve enhanced fatigue resistance and hysteresis-free performance. The composite fibers are created through the combination of heterogeneous elastomers and strong interfacial coupling. The results show that the fiber exhibit exceptional fatigue resistance, being able to withstand up to 10,000 load–unload cycles at strains of 300% without any noticeable changes in their mechanical properties. Demonstrations as strain sensors for monitoring human motion in both air and water, as well as in energy-harvesting e-textiles are performed, indicating the as-made fiber with an enormous potential uses in e-skin and wearable electronic devices.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POLYMER RESEARCH
·
2023
·Vol. 30
·期 6
·1-13
·
IF 2.8
Wang Huajun,He Junwei,Zou Liming,Wang Chao,Li Yan Vivian
High mechanical property poly (vinyl alcohol) (PVA) fibers have attracted tremendous attentions because of their excellent mechanical properties and has a potential application in the field of building enhancement. In this article, PVA polymer with high polymerization degree ( P n ) and high Syndiotacticity-diad content ( S-diad ) were synthesized using vinyl acetate (VAc) and vinyl pivalate (VPi) as monomers via emulsion polymerization with water as solvent, the GPC and 1 H NMR were used to characterized the P n and S-diad of PVA polymer. Then the lanthanum chloride (LaCl 3 ) was chosen as cross-linking and the synthesized PVA polymer as raw material for dry-wet spinning, a series of PVA fibers with high strength and high modulus have been prepared. The final PVA-La fibers were characterized through a series of experiments including of FTIR, SEM, DSC, TGA, XRD and fiber tensile tester. It turned out that the P n and S-diad of synthesized PVA polymer were 4817 ± 76 and 56.3 ± 0.7%. With the increasing of LaCl 3 content, the -OH vibration absorption peak of PVA-La composite fiber gradually increased from 3462 cm -1 to 3484 cm -1 ; the strength, modulus, crystallinity and orientation all increased first and then decreased. Especially, the properties of PVA-La fiber exhibited an optimal LaCl 3 content of 0.8 wt%, the denier was 5.4 ± 0.5 dtex, the tensile strength and highest elastic modulus of 15.19 ± 0.5 cN/dtex and 369.21 ± 9.1cN/dtex, the elongation at break was 3.72 ± 0.4%, the crystallinity was 53.9 ± 0.6%, the orientation was 95.6 ± 0.6%.
✓ 已验证
产品关联
DOI
高影响因子
POLYMER BULLETIN
·
2023
·
IF 3.2
Zhao Tao,Yu Jinshuo,zhang Xingyang,Han Wenshuang,zhang Shuo,Pan Hongwei,Zhang Qingxin,Yu Xiaoyan,Bian Junjia,Zhang Huiliang
A environment-friendly polymer blends were prepared by the basis of bio-sourced polylactide (PLA) and aliphatic poly(butylene succinate) (PBS) via melt compounding process. 1,4-butanediol and succinic acid was used together with tetrabutyltitanate as catalyst to synthesize PBS via esterified and polycondensation. The chemical structure of PBS was studied by 1 H NMR and FT-IR spectroscopy. The effects PBS content on thermal behavior, mechanical properties, phase morphology, and thermal stability of PLA/PBS blends were systematically investigated. DSC and DMA results showed that glass transition temperature ( T g ) and cool crystallizaiton temperature ( T cc ) of PLA was influenced by PBS. The different phase morphologies of the PLA/PBS blends formed after addition of PBS into PLA. The various phase morphologies from that blend influenced the rheological behavior and further influenced the mechanical properties in PLA/PBS blends, the well dispersed PBS increased the elongation at break of 8.1 ± 0.1 kJ/m 2 with around 80.0% over than neat the PLA. Finally, the PLA/PBS blends have excellent mechanical and thermal properties by analyzing the toughening mechanism and crystallization morphology. Graphical Abstract
✓ 已验证
产品关联
DOI
高影响因子
International Journal of Minerals Metallurgy and Materials
·
2023
·Vol. 30
·期 7
·1407-1416
·
IF 4.8
Pang Xiaoxiao,Wang Tingting,Liu Bin,Fan Xiayue,Liu Xiaorui,Shen Jing,Zhong Cheng,Hu Wenbin
Tetragonal barium titanate was synthesized from barium hydroxide octahydrate and titanium tetrachloride through a simple one-step hydrothermal method. The effect of different solvents on the crystal structure and morphology of barium titanate nanoparticles during the hydrothermal process was investigated. Except for ethylene glycol/water solvent, impurity-free barium titanate was synthesized in pure water, methanol/water, ethanol/water, and isopropyl alcohol/water mixed solvents. Compared with other alcohols, ethanol promotes the formation of a tetragonal structure. In addition, characterization studies confirm that particles synthesized in methanol/water, ethanol/water, and isopropyl alcohol/water mixed solvents are smaller in size than those synthesized in pure water. In the case of alcohol-containing solvents, the particle size decreases in the order of isopropanol, ethanol, and methanol. Among all the media used in this study, ethanol/water is considered the optimum reaction media for barium titanate with high tetragonality (defined as the ratio of two lattice parameters c and a, c/a = 1.0088) and small average particle size (82 nm), which indicates its great application potential in multilayer ceramic capacitors.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
·
2023
·Vol. 39
·期 3
·472-480
·
IF 3.1
Wang Hao,Zhang Yue,Zhao Liuqing,He Zeying,Zhang Jingran,Liu Bingjie,Liu Xiaowei,Zhang Yanwei
The ecotoxicity of perfluorooctane sulfonate(PFOS) to plants has been reported, but the lack of study on the effect of PFOS isomers is of concern. In this paper, the effect mechanism of Arabidopsis thaliana ( A. thaliana ) against two different concentrations of L -PFOS or perfluoro-3-methylheptanesulfonate (P3MHpS) was investigated via metabolomics. The metabolism of Arabidopsis thaliana leaves was investigated via the metabolomics strategy and statistical analysis. And 41 biomarkers for L -PFOS and 32 biomarkers for P3MHpS were found and identified. There was no significant difference of saccharides between L -PFOS and P3MHpS. More amino acids were affected by P3MHpS than by L -PFOS in high-level exposure group, while the opposite phenomenon was observed in low-level exposure group. More phytohormones were affected by L -PFOS than by P3MHpS in the high-level exposure group, however, the elevated level of indole phytohormones was significantly higher by P3MHpS than by L -PFOS. The level of up-regulation of (poly)phenols in L -PFOS group was significantly higher than that in P3MHpS group. The affected aliphatic glucosinolate metabolism was firstly observed with higher up-regulation induced by L -PFOS than by P3MHpS. New insight of phytotoxicity of PFOS isomers to plants was provided.
✓ 已验证
产品关联
DOI
高影响因子
Science China-Chemistry
·
2023
·Vol. 66
·期 6
·1795-1803
·
IF 9.6
Yan Kangrong,Shen Ziqiu,Niu Benfang,Huang Yanchun,Wang Di,Gu Emely,Yan Buyi,Yao Jizhong,Chen Hongzheng,Li Chang-Zhi
The interfacial properties between charge transporting material and perovskite (PVSK) play critical roles in governing the photovoltaic performances of perovskite solar cells (PVSCs). Herein, we develop a multifunctional fulleropyrrolidine (FMG) as an electron transporting material (ETM), which facilitates the construction of efficient and stable inverted PVSCs and modules. It revealed that the facile and scalable FMG possesses not only excellent electron extraction capabilities, but also multi-groups to simultaneously passivate PVSKs via Lewis acid-base and hydrogen bonding interactions. The coating of FMG onto PVSK interestingly yields a dense and interactive layer with the graded ETM-PVSK heterojunction architecture. As results, FMG-based PVSCs demonstrate a champion efficiency of 23.8%, outperforming 21.0% of PCBM-based devices. FMG could also be utilized to improve photovoltaic performance of large-scale modules. In addition, FMG has successfully elongated the lifetime of the corresponding PVSCs, maintaining 85% of the initial performance after the continuous 60-day one sun equivalent illumination in ambient.
✓ 已验证
产品关联
DOI
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2023
·Vol. 30
·期 36
·85578-85591
·
IF 5.8
Tang Jielin,Qin Jinyan,Kuerban Guzailinuer,Li Jiayi,Zhou Qinyu,Zhang Hongdan,Sun Rongli,Yin Lihong,Pu Yuepu,Zhang Juan
As an emerging flame retardant, organic phosphate flame retardants have been extensively used worldwide. The aim of this study is to determine the effects of TnBP on neurobehavior of Caenorhabditis elegans ( C. elegans ) and its mechanisms. L1 larvae of wild-type nematodes (N2) were exposed to TnBP of 0, 0.1, 1, 10, and 20 mg/L for 72 hours. Then, we observed that the body length and body width were inhibited, the head swings were increased, the pump contractions and chemical trend index were reduced, the production of reactive oxygen species (ROS) was increased, and the expression of mitochondrial oxidative stress related genes ( mev-1 and gas-1 ) and P38 MAPK signal pathway-related genes ( pmk-1 , sek-1 , and nsy-1 ) was altered. After reporter gene strains BZ555, DA1240, and EG1285 were exposed to TnBP of 0, 0.1, 1, 10, and 20 mg/L for 72 hours, the synthesis of dopamine, glutamate, and Gamma-Amino Butyric Acid (GABA) was increased. In addition, the pmk-1 mutants (KU25) led to the sensitivity of C. elegans to TnBP in terms of head swings. The results showed that TnBP had harmful effects on the neurobehavior of C. elegans , oxidative stress might be one of the mechanisms of its neurotoxicity, and P38 MAPK signal pathway might play an important regulatory role in this process. The results revealed the potential adverse effects of TnBP on the neurobehavior of C. elegans .
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MICROCHIMICA ACTA
·
2023
·Vol. 190
·期 7
·1-10
·
IF 5.7
Shi Tian,Liu Tong,Zhang Jinyuan,Cai Da,Zhang Yueli
An up-conversion molecularly imprinted ratiometric fluorescent probe with a monodisperse nuclear-satellite structure and its test strip are designed which can avoid fluorescent background interference to detect Sudan I in chili powder highly selective and sensitive. The detection mechanism is based on the selective recognition of Sudan I by imprinted cavities on the surface of ratiometric fluorescent probe and the inner filter effect between Sudan I molecules and the emission of up-conversion materials (NaYF 4 :Yb,Tm). Under optimized experimental conditions, the response of fluorescent ratio signals (F 475 /F 645 ) of this test strip show a good linear relationship in the range 0.02–50 μM Sudan I. The limits of detection and quantitation are as low as 6 nM and 20 nM, respectively. Sudan I is selectively detected in the presence of fivefold higher concentrations of interfering substances (imprinting factor up to 4.4). Detection of Sudan I in chili powder samples show ultra-low LOD (44.7 ng/g), satisfactory recoveries (94.99–105.5%) and low relative standard deviation (≤ 2.0%). This research offers a reliable strategy and promising scheme for highly selective and sensitive detection of illegal additives in complex food matrix via an up-conversion molecularly imprinted ratiometric fluorescent test strip. Graphical abstract
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ELECTRONIC MATERIALS
·
2023
·Vol. 52
·期 8
·5680-5689
·
IF 2.1
Guo Congxiu,Sun Ya,Wang Bing,Wang Yunwei,Wu Jiao,Tong Xili
N, O self-doped hierarchical porous carbon has been successfully synthesized through a facile chemical activation method using corn silk as raw material, where the texture properties of the samples can be tailored via changing the quantity of the Na 2 CO 3 activator. The optimal sample with a BET surface area of 1269.79 m 2 g −1 and a nitrogen content of 2.48 at% exhibited the highest specific capacitance of 158.2 F g −1 and 196.3 F g −1 at 1 A g −1 in basic and acidic solution, respectively. In addition, the high capacitance contributions (86.2% in basic solution and 72.6% in acidic solution at 10 mV s −1 ) imply a capacitive controlled mechanism. These results indicate that the synthesis of heteroatom-doped porous carbon from biomass can be a potential approach for developing effective materials in supercapacitors.
✓ 已验证
产品关联
DOI
高影响因子
Nano-Micro Letters
·
2023
·Vol. 15
·期 1
·1-19
·
IF 26.6
Wang Huawei,Gao Jialong,Chen Changli,Zhao Wei,Zhang Zihou,Li Dong,Chen Ying,Wang Chenyue,Zhu Cheng,Ke Xiaoxing,Pei Jiajing,Dong Juncai,Chen Qi,Jin Haibo,Chai Maorong,Li Yujing
A hybrid electrocatalyst consisting of PtNi-W alloy nanocrystals loaded on carbon surface with atomically dispersed W sites was realized.
Single-atomic W formed protonic acid sites and established an extended proton transport network at the catalyst surface.
Peak power density is enhanced by 64.4% compared to that with the commercial Pt/C catalyst in fuel cell as cathode at ultra-low loading of 0.05 mg Pt cm −2 .
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2023
·Vol. 30
·期 27
·70827-70841
·
IF 5.8
Hao Mengqi,Wu Wei,Habibul Nuzahat,Chai Guang,Ma Xiaoli,Ma Xiaoqian
Excessive phosphate content input into natural water can lead to the waste of resource and eutrophication. Biochar is a kind of low-cost adsorbent. However, its adsorption capacity for phosphate is low. In order to solve this problem, Fe compound-modified fly ash/cotton stalk biochar composites (Fe-FBC) were prepared through co-pyrolyzed fly ash and cotton stalk at 800℃, followed by infiltration of FeSO 4 solution. The samples were characterized by scanning electron microscopy, Brunauer–Emmett–Teller, X-ray diffraction, Fourier transform infrared spectroscopy, and zeta potential. After modification, the hydrophilicity and polarity of Fe-FBC increased. In addition, the pore volume, specific surface area, and surface functional groups were significantly improved. The adsorption behavior of Fe-FBC for the removal of phosphate from water can be well fitted by the pseudo-second-order kinetic and Sips isotherm adsorption model, with a maximum adsorption capacity of 47.91 mg/g. Fe-FBC maintained a high adsorption capacity in the pH range of 3–10. The coexisting anions (NO 3 − , SO 4 2− , and Cl − ) had negligible effects on phosphate adsorption. The adsorption mechanisms of Fe-FBC include electrostatic attraction, ligand exchange, surface complexation, ion exchange, chemical precipitation, and hydrogen bonding. Moreover, the desorption process of phosphate was investigated, indicating that the phosphate-saturated Fe-FBC could use as slow-release phosphate fertilizer. This study proposed a potentially environmental protection and recycling economy approach, which consists of recycling resources and treating wastes with wastes.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Scientific Reports
·
2023
·Vol. 13
·期 1
·1-13
·
IF 4.6
Xu Rui-Qi,Ma Ling,Chen Timson,Zhang Wei-Xiong,Chang Kuan,Wang Jing
Biosurfactants are attracting much interest due to their potential application as therapeutic agents in the medical and cosmetic field. Previous studies have demonstrated that biosurfactant such as sophorolipid (SL) exhibits immunomodulatory effects. In this article, we found the potential of sophorolipid for inhibiting histamine-induced itch and preliminarily explored its molecular basis. First, behavioral tests indicated that SL can remit the histamine-induced scratching behaviors of mice. Second, SL can suppress the the calcium influx induced by histamine, HTMT and VUF8430 in HaCaT cells. RT-PCR analysis showed that the histamine-induced upregulation of mRNA levels of phospholipase Cγ1, 1,4,5-trisphosphate receptor (IP3R), and protein kinase Cα can be inhibted by SL, suggesting that SL may impede the PLC/IP3R signaling pathway activated by histamine. In further tests, the capsaicin-induced calcium influx can also be inhibited by SL. The immunofluorescence and molecular docking analysis indicated that SL acts as an inhibitor of transient receptor potential vanilloid-1 (TRPV1) activation to decrease calcium influx against stimuli. In summary, these results revealed that SL may inhibit histamine-induced itch by decreasing PLC/IP3R signaling pathway activation and modulating TRPV1 activity. This paper indicates that SL can be a useful treatment for histamine-dependent itch.
✓ 已验证
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）