Surfaces and Interfaces
·
2024
·
IF 5.7
Peng Liu,Linshan Wu,Xiulin Huang,Zhiguang Guo
Membrane materials are widely used in the treatment of oily wastewater. In this work, hybrid nanofibrous membranes of polyacrylonitrile (PAN) and polytetrafluoroethylene-hexafluoropropylene (PVDF-HPF) were prepared by electrospinning and cured at high temperature. Subsequent hydrothermal treatment to grow Mg/Al-LDHs and polymerization of tannic acid (TA) on the surface yielded WPPLT membranes. SEM and EDS tests showed that the WPPLT membranes had a uniform compositional distribution. AFM tests showed that the hydrothermal and tannic acid treatments increased the roughness of the membranes and imparted a superhydrophilicity to the membranes. Separation tests of the emulsion showed that the separation efficiency was above 99 % with stable flux due to the fine pore size of the nanofiber membrane and the positive charge effect of the LDHs. Mechanical tensile tests showed that the tensile strength of the WPPLT membrane was 4.1 MPa, which was 89 % higher relative to the electrospinning membrane. Finally, the synergistic effect of LDHs and tannic acid under UV irradiation achieved more than 90 % degradation efficiency of methylene blue (MB). The present work provides new insights to improve the mechanical properties of nanofiber membranes, which helps the membranes to be used in more complex environments and enhances the prospect of their application in oil and water pollution.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2020
·
IF 5.162
Jie Chen,Xicheng Wang,Hua Ye,Zhenyan Yu,Longbao Feng,Jing Zhou,Yajin Che
As one of the most commonly used materials in liver tissue engineering, hydrogel has received much attention in recent years. In this work, we prepared a gelatin methacrylate (GelMA)/oxidized hyaluronic acid (OHA)/galactosylated chitosan (Gal-CS)/Fe (III)@ [email protected] 200 (TA200) hydrogel loaded with insulin-like growth factor 2 (IGF-2) for regeneration of damaged hepatocytes. Fe (III)@TA microspheres served as carrier to achieve sustained release of IGF-2 to promote hepatocytes regeneration. Galactose ligands could bind to the asialoglycoprotein receptor (ASGPR) on the surface of hepatocytes. Galactosylated chitosan could significantly increase the specific function of hepatocytes. The hydrogel we prepared had a storage modulus of 1100 Pa and was suitable for migration of hepatocytes. The release ratio of IGF-2 could reach up to 90% within 14 days. For carbon tetrachloride (CCl 4 ) induced human hepatic stellate cell line LX2 damage, GelMA/OHA/Gal-CS/TA200 hydrogel could significantly improve the survival of LX2 cells. The expression of HNF-4α and transferrin was detected in LX2 cells treated with hydrogel, indicating that the specific function of the liver was also restored. In summary, the GelMA/OHA/Gal-CS/TA200 hydrogels could be used as new tissue engineering scaffolds for the construction of artificial livers.
研究领域:
组织工程
·
肝脏再生
·
生物材料
·
细胞生物学
✓ 已验证
DOI
PubMed
高影响因子
Metals
·
2022
·Vol. 12
·期 11
·
IF 2.695
Jia-Ling Jiang,Song-Tao Dong,Zhuang Fu,Miao-Cheng Yu,Lijun Zhao,Lei Wang
In this study, Bi2−xTaxO2Se (x = 0, 0.02, 0.04, 0.06, and 0.08) ceramics were prepared using a synthesis method combining high-energy ball milling and cold pressing. Furthermore, the effects of tantalum (Ta) doping on the microstructure and thermoelectric properties of Bi2O2Se were systematically investigated. The results indicate that Ta doping effectively improves the carrier concentration and mobility, thus increasing the electrical conductivity from 8.75 S cm−1to 39.03 S cm−1at 323 K. Consequently, the power factor is improved, reaching a maximum value of 124 μW m−1K−2for the Bi1.92Ta0.08O2Se sample at 773 K. Moreover, the thermal conductivity of Bi1.96Ta0.04O2Se is reduced to 0.50 Wm−1K−1. Finally, the maximum dimensionless figure of merit (ZT) value of the Bi1.94Ta0.06O2Se sample reached 0.18, which was 64% higher than that of Bi2O2Se (0.11). These results indicate that Ta doping and high-energy ball milling can optimize the electrical and thermal properties and thus improve the thermoelectric properties of ceramics.
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DOI
高影响因子
Scientific Reports
·
2024
·Vol. 14
·期 1
·9580
·
IF 3.8
Liu Jinjin,Li Qing,Li Yongkai,Fan Xinwei,Li Jun,Zhu Peng,Deng Hanbin,Yin Jia-Xin,Yang Huaixin,Li Jianqi,Wen Hai-Hu,Wang Zhiwei
Kagome superconductors AV 3 Sb 5 (A = K, Rb, and Cs) have attracted enormous interest due to the coexistence of charge density wave (CDW) order, unconventional superconductivity (SC) and anomalous Hall effect (AHE). In this paper, we reported an intensive investigation on Cs(V 1− x Ta x ) 3 Sb 5 single crystals with systematic Ta doping. Ta was confirmed to be doped into V-site in the Kagome layer from both single crystal X-ray diffraction structural refinement and scanning transmission electron microscopy observation. The highest Ta doping level was found to be about 16%, which is more than twice as much as 7% in Nb-doped CsV 3 Sb 5 . With the increase of Ta doping, CDW order was gradually suppressed and finally vanished when the doping level reached to more than 8%. Meanwhile, superconductivity was enhanced with a maximum critical temperature ( T c) of 5.3 K, which is the highest T c in the bulk crystal of this Kagome system at ambient pressure so far. The μ 0 H c2 (T) behavior demonstrates that the system is still a two-band superconductor after Ta doping. Based on the electrical transport measurement, a phase diagram was set up to exhibit the evolution of CDW and SC in the Cs(V 1− x Ta x ) 3 Sb 5 system. These findings pave a new way to search for new superconductors with higher T c in the AV 3 Sb 5 family and establish a new platform for tuning and controlling the multiple orders and superconducting states.
研究领域:
凝聚态物理
·
超导物理
·
量子材料
·
强关联电子体系
·
晶体生长
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DOI
高影响因子
JOURNAL OF LUMINESCENCE
·
2019
·
IF 2.961
Su Zhang,Lingling Lv,Hongjie Wang,Chongyang Zhu,Ran Pang,Jing Feng,Da Li,Guanyu Liu,Lihong Jiang,Chengyu Li
The 0.8CaWO 4 -0.2EuMO 4 (M = Nb, Ta) solid solution and Eu 3+ , Ta 5+ and Nb 5+ single doped CaWO 4 were prepared by a high-temperature solid state reaction technique. Experiments show that the addition of Nb 5+ and Ta 5+ can increase the red luminescence of Eu 3+ in CaWO 4 . In this paper, the composition and structure of solid solution were analyzed by X ray diffraction (XRD), Fourier transform infrared spectrum and Raman spectrum analysis. The luminescence properties of the solid solution were studied by means of stable photoluminescent spectra, diffuse reflectance spectra (DRS), fluorescent decay curves and variable temperature spectra. By combining structural analysis, J-O theoretical calculation and experimental results, we believe that the significant improvement of the emission efficiency comes from the decrease of non-radiation relaxation rate.
研究领域:
材料科学
·
光学
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产品关联
DOI
高影响因子
Journal of Materials Chemistry B
·
2022
·Vol. 10
·期 42
·8672-8683
·
IF 7.571
Xiao Han,Lijuan Wang,Yushang Shang,Xu Liu,Jiang Yuan,Jian Shen
Hydrogen sulfide (H2S) has indispensable effects on wound healing promotion, such as anti-inflammatory, cell proliferation enhancement, and angiogenesis improvement. However, small-molecular donors have drawbacks of burst release and low biocompatibility. In this study, a novel bio-macromolecular donor of H2S based on a keratin–thiobenzoic acid conjugate (KTC) was first synthesized by a thiol–disulfide exchange reaction. Then, the KTC was incorporated into polyurethane and gelatin to fabricate nanofibrous mats by electrospinning. Interestingly, both the KTC donor and biocomposite mats were capable of releasing H2S triggered by glutathione (GSH) under physiological conditions. These mats had excellent water absorption capacity, demonstrating their great ability to absorb tissue exudate. In addition, these mats possessed a notable antioxidant ability, thereby protecting cell membranes from oxidation. Cell assays in vitro demonstrated that these mats could promote cell proliferation and migration. Furthermore, the in vivo full-thickness defect model verified that these H2S-releasing wound dressing mats could accelerate granulation tissue formation, enhance collagen deposition, and promote angiogenesis. Based on these advantages, these wound dressing mats had great potential applications for wound healing.
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产品关联
DOI
PubMed
高影响因子
ACS Omega
·
2023
·
IF 4.1
Jianqiao Kong,Song Xu,Yang Dai,Yi Wang,Yun Zhao,Peng Zhang
Chemotherapeutic agents fail in clinical chemotherapy in the absence of targeting and acquired resistance. We, therefore, synthesized Fe3O4@ZIF-8@Sor@TA nanocomposite drugs based on the drug delivery properties of nanomaterials. ZIF-8 is a nanomaterial with a porous structure that can load anticancer drugs. The nanodrug used the paramagnetic property of Fe3O4 to deliver sorafenib (Sor) precisely to the tumor site, then used the pH responsiveness of ZIF-8 to slowly release Sor in the tumor microenvironment, and finally used tannic acid (TA) to inhibit P-glycoprotein to suppress the Sor resistance. The results of material characterization presented that the prepared material was structurally stable and was able to achieve a cumulative drug release of 38.2% at pH 5.0 for 72 h. The good biocompatibility of the composite was demonstrated by in vitro and in vivo experiments, which could improve antitumor activity and reduce Sor resistance through magnetic targeting TA. In conclusion, the Fe3O4@ZIF-8@Sor@TA material prepared in this study demonstrated high antitumor activity in hepatocellular carcinoma treatment, promising to reduce drug resistance and providing a novel research approach for cancer treatment.
研究领域:
纳米医学
·
肿瘤学
·
药理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CATALYSIS LETTERS
·
2024
·Vol. 154
·期 7
·3174-3183
·
IF 2.3
Xia Qing,Qin Haijian,Xia Feifei,Yao Pengfei,Zheng Chunzhi,Zhao Songjian,Zhang Huabing,Yang Fengli
CO oxidation at mild condition is significant for industrial process but still challenging nowadays, especially for the non-noble metal catalysts. The preparation method significant affect the catalytic activity of the catalyst. Comparing with cobalt supported on tantalum oxide prepared by impregnation method, Co/Ta 2 O 5 prepared by deposition–precipitation method with urea in this study has smaller particle size, higher specific surface area and better redox properties, and these features make the catalyst exhibit higher catalytic activity for CO oxidation at mild condition. 90% CO conversion was achieved at 130 ℃, and CO was fully converted at 150 ℃. The XPS and DRIFTs results show that Co/Ta 2 O 5 has more oxygen vacancies, and the absorbed CO will react with oxygen. The study may provide a new thought for the preparation of catalysts with high activity at mild condition. Graphical
Co/Ta 2 O 5 prepared by deposition–precipitation with urea catalyzes the oxidation of CO
研究领域:
催化
·
材料科学
·
环境化学
·
化学工程
✓ 已验证
DOI
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2019
·Vol. 103
·期 5
·2970-2974
·
IF 3.094
Honghua Liu,Bin Du,Yanhui Chu
The polymer-derived-ceramic (PDC) route has been widely used to fabricate the transition-metal carbides (TMCs). Previously reported works focused mainly on the synthesis of the single or binary TMCs, while the synthesis of the ternary or more component TMCs was rarely reported. Herein, a class of the ternary TMCs, namely (Nb 1/3 Zr 1/3 Ta 1/3 )C solid-solution ceramics, was successfully synthesized via PDC route for the first time. The as-synthesized ceramics exhibited the particle-like morphology with an average particle size of ~250 nm and showed a single rock-salt crystal structure of metal carbides. At the same time, they had high compositional uniformity from nanoscale to microscale. In addition, they possessed low-oxygen impurity content of 0.79 wt% and moderate-carbon impurity content of 8.98 wt%. Such work provides a novel route to fabricate the ternary or more component TMCs.
研究领域:
材料科学
·
无机化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Bio Materials
·
2021
·
IF 0
Pengzhong Shi,Daozhen Zhou,Yaxin Zhu,Bo Peng,Nannan Shao,Xingjie Zan
Fast hemostasis, biosecurity, and adaptation of different bleeding sites are the major challenges for hemostatic materials. In this work, an easy-to-make, rapid hemostatic, tannic acid doped calcium carbonate microsphere with a low concentration of thrombin (Thr@TA-CaCO3) was developed. In an in vitro blood clotting assay, the hemostatic effect of Thr@TA-CaCO3 varied with the change of thrombin amount. Furthermore, the average hemostatic time can be reduced from 205 to 20 s as the thrombin levels are elevated. When applied in different hemorrhage models, the Thr@TA-CaCO3-treated group had a lower blood loss than the tannic acid modified CaCO3 (TA-CaCO3) groups. Especially in the rabbit artery injury model, the total bleeding amount in the Thr@TA-CaCO3-treated group was only 11.97% of that in the TA-CaCO3 groups, proving that Thr@TA-CaCO3 had an excellent hemostatic effect even in the case of rapidly flowing blood. Based on the above, Thr@TA-CaCO3 is a promising hemostatic agent and can be applied in more extensive clinical applications.
研究领域:
生物医学工程
·
材料科学
·
血液学
✓ 已验证
DOI
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Qiaoyuan Luo,Tianrui Zhou,Yuntong Liang,Yuancheng Zhang,Baofeng Lin
Green formaldehyde-free adhesives have gained attention for their eco-friendliness, though poor extreme-environment adaptability and inadequate underwater adhesion limit their practical application. This study presents a novel tannic acid‑silver nanoparticles (TA-AgNPs) in deep eutectic solvent (DES) for room-temperature autocatalytic polymerization of acrylic acid. By integrating nano-lignin (LNP) and TA-AgNPs, we constructed a dual dynamic enhancement structure through a catechol-quinone redox couple, enabling synergistic dynamic covalent/non-covalent bonding. The resulting green adhesive (TALP) demonstrates exceptional interfacial adhesion (1.3 MPa on wood) with 60-days durability under ambient conditions. The DES-mediated hydrogen-bonding network facilitates efficient interfacial water displacement, achieving underwater adhesion strength of 0.94 MPa and maintaining operational efficacy across extreme temperatures (−40 °C to 100 °C) and chemical solvents. The system exhibits a rapid recovery capability (3-s pipe leakage repair) via dynamic bond reconfiguration. Notably, the phenolic hydroxyl groups in TA synergize with AgNPs' bactericidal activity, yielding potent antimicrobial performance suitable for bacterial-prone environments. This multifunctional adhesive platform combines environmental adaptability, rapid repair, and intrinsic biocidal properties, offering transformative potential for industrial and biomedical applications under harsh conditions.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
RARE METALS
·
2025
·
IF 11
Dong Fei-Long,Liu Zhen-Hua,Jiang Ying,Liang Zhe,Chu Xu,Ma Chun-Hui,Sun Hao,Xie Hai-Ming
TiNb 2 O 7 (TNO) is regarded as a potential fast-charging anode for lithium-ion batteries due to its fast reversible phase transition and safe working potential, but it suffers from unsatisfactory electronic conductivity, sluggish ion kinetics, and poor structural stability under high rates. Herein, tantalum (Ta) with strong Ta–O bonds is doped into TNO to enhance its fast-charging property and structural stability. Proper amount of Ta doping not only increases the interlayer spacing for fast Li + transport, but also improves the electrical conductivity, being successfully proved by experimental analyses. Density functional theory (DFT) calculation verifies that the lattice distortion induced by the incorporation of strong Ta-O bonds can effectively strengthen the structural stability. Notably, in situ X-ray diffraction (XRD) technology reveals that Ta doping relieves volumetric strain during lithiation and de-lithiation. Thus, the optimized Ta 0.1 -TNO sample owns impressive long-term cycling stability even at a high current density of 10C, which delivers a high-capacity retention of 85.12% (a capacity decay of less than 0.01% per cycle) after 1500 cycles. This work provides a fast-charging anode material with superior structural stability for lithium-ion batteries. Graphical abstract
研究领域:
材料科学
·
电化学
·
能源存储
·
无机化学
·
固态化学
·
纳米材料
·
电池技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）