JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Bei-Chen Gao,Yu Tian,Run-Ping Liu,Yi-Xin Wang,Yang You,Wei-Ming Guo,Hua-Tay Lin
A two-step method including low-temperature pretreatment and high-temperature homogenization was developed to prepare high-purity (Ti 0.2 V 0.2 Ta 0.2 Nb 0.2 Hf 0.2 )(C 0.75 N 0.25 ) powder. In the first step, the reaction mixture was heated to 1450 ℃ to form intermediate carbonitride phases through carbothermal reduction-nitridation, and the second step at 1700 ℃ produced a single-phase high-entropy carbonitride. The powder prepared by single-step treatment at 1750 ℃ contained 2.28 wt% nitrogen and 0.18 wt% oxygen. In contrast, the two-step powder exhibited higher nitrogen content (2.45 wt%) and lower oxygen content (0.09 wt%), and the formation of a complete single-phase solid solution enabled accurate calculation of its composition (Ti 0.2 V 0.2 Ta 0.2 Nb 0.2 Hf 0.2 )(C 0.78 N 0.21 O 0.01 ). The ceramic prepared from the two-step powder achieved 99.8% relative density, with an average grain size of 4.58 ± 0.32 μm, a Vickers hardness of 22.73 ± 0.51 GPa, and a fracture toughness of 3.16 ± 0.30 MPa·m 1/2 , whereas the single-step ceramic reached only 86.5% relative density.
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Yingying Yang,Shuang Tian,Zehao Huang,Xuyang Lu,Chunxiao Lan,Yuelu Li,Jiacheng Zhang,Lijie Huang,Chongxing Huang,Hui Zhao,Qingshan Duan
To address the issues of energy-consuming fabrication, poor mechanical properties, and low sensing sensitivity of conventional hydrogel sensors, this study reports the development of an iron-tannic acid (Fe-TA)-mediated autocatalytic strategy for the rapid construction of “covalent-ionic” dual-crosslinked cellulose-based hydrogels. This system spontaneously generates radicals at room temperature through the redox cycle of Fe-TA and ammonium persulfate, driving the polymerization of carboxymethyl cellulose (CMC) with acrylamide to achieve ultrafast in-situ formation of the hydrogel within 119 s. By introducing carboxylated cellulose nanofibers (CCNFs) and utilizing Fe 3 + ion coordination, a dual-crosslinked network hydrogel (denoted as CAMFFE hydrogel) was constructed, leading to markedly improved mechanical properties with a compressive strength of 386 kPa and an elongation at break of 528%. Benefiting from the multifunctional integration of Fe 3+ (catalysis, crosslinking, and conductivity), this hydrogel strain sensor exhibits high sensitivity with a gauge factor (GF) ranging from 1.46 to 4.16, and rapid response (0.3 s) and recovery (0.5 s) over the strain range of 0–500%, along with strong adhesion to substrates such as wood and skin (up to 85.7 kPa). The study further demonstrates its versatile applications in human motion monitoring and wireless handwritten recognition, providing new materials and valuable design insights for the development of high-performance, sustainable flexible electronic devices.
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES B-BIOINTERFACES
·
2026
·
IF 5.9
Yanzhu Guo,Ze Lalai A Di Li,Qian Chen,Yuxin Wang,Jing Zhang,Wenjuan Liu,Xuebin B Yang,Fuxiang Song,Bin Liu
Dual surface functionalization of ZnO NPs with QPEI and TA fabricates two novel dental resin nanofillers. • 2 wt% functionalized ZnO NPs endow dental resins with balanced physicochemical and biological performances. • QPEI-modified ZnO NPs confer excellent antibacterial ability against Streptococcus mutans to composites. • TA-functionalized ZnO NPs significantly enhances the calcium-phosphate deposition capacity of dental resins. • The multifunctional composites exhibit good cytocompatibility and great potential for secondary caries prevention. To impart antibacterial activity and calcium-phosphate deposition capability to dental resin composites (DRCs) and thereby reduce the risk of secondary caries, zinc oxide nanoparticles (ZnO NPs) were surface-functionalized with quaternized polyethyleneimine (QPEI) and tannic acid (TA), yielding two functional nanofillers, termed ZQ and ZT, respectively. The modified nanoparticles were incorporated into DRCs, and their physicochemical properties, cytocompatibility, antibacterial performance, and calcium-phosphate deposition behavior were systematically evaluated. The results demonstrated that composites containing 2 wt% functionalized nanoparticles (DZQ2 and DZT2) achieved the most balanced overall performance. Both materials satisfied the ISO 4049 curing-depth requirement and exhibited enhanced mechanical properties, favorable hydrolytic stability, and good cytocompatibility, with cell viabilities exceeding 80%. Functional evaluation revealed distinct biological effects associated with the two surface modification strategies. DZQ2 exhibited strong antibacterial activity against Streptococcus mutans (88.14 ± 1.70%), whereas DZT2 promoted greater calcium-phosphate deposition, showing a higher Ca/P ratio (1.08) than DZQ2 (0.83) after 28 days of immersion in artificial saliva. Overall, surface functionalization of ZnO nanoparticles provides an effective strategy for tailoring the biological performance of dental resin composites. The developed materials combine favorable physicochemical properties, antibacterial activity, and calcium-phosphate deposition capability, demonstrating potential as multifunctional restorative materials for reducing the risk of secondary caries. Download: Download high-res image (240KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Heng Li,Rongxin Guo,Chang Liu,Dexin Chen,Junjie Yang,Qiwei Wang,Peng Zhang
A TA-PEI “molecular bridge” strategy was devised for robust in-situ growth of ZIF-8 on PES membranes. • The composite membrane exhibited 175.48 L·m −2 ·h −1 flux and 98.29% oil rejection. • The membrane exhibited outstanding stability in highly alkaline (pH 12) environments. • Mechanical strength was significantly improved due to ZIF-8 reinforcement and crosslinking synergy. The treatment of highly alkaline, surfactant-stabilized oily wastewater from electroplating pretreatment poses a significant challenge for membrane technology. Conventional polyethersulfone (PES) ultrafiltration membranes suffer from severe fouling and chemical degradation under such harsh conditions. To address these dual limitations of performance and stability, this study developed a “blending-in-situ growth” strategy to fabricate a ZIF-8/TA-PEI/PES composite membranes. The TA-PEI interlayer acts as a molecular bridge, enabling uniform and robust anchoring of the ZIF-8 coating. The optimized membrane exhibited a pure water flux of 175.48 L·m −2 ·h −1 (≈4.5× that of pristine PES) and a high flux recovery rate of 75.86%. For surfactant-stabilized oil-in-water emulsions, it achieved 98.29% rejection, maintaining 96.54% efficiency over 10 cycles. Crucially, it demonstrated exceptional alkali resistance, retaining 92.17% rejection after 72 h at pH 12, alongside a tripled tensile strength (3.01 MPa). This work provides a durable and high-performance membrane solution engineered specifically for the demanding separation of complex industrial wastewater. Download: Download high-res image (249KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2025
·Vol. 45
·期 15
·117640
·
IF 6.2
Li Xu,Wei Liao,Xiaosong Zhou,Yongqiang Tan
The influences of Cr 3 C 2 addition on phase formation, microstructures and mechanical properties of (Zr,Ti,Nb,Ta,Hf)C prepared from binary carbides mixtures by spark plasma sintering were studied. The introduction of 4/3 mol.% Cr 3 C 2 significantly lowered the minimum temperature for uniform high-entropy phase (Zr,Ti,Nb,Ta,Hf)C from 2200 °C for to 1900 °C. The lower solubility limit of Cr in (Zr,Ti,Nb,Ta,Hf,Cr)C results in excessive Cr 3 C 2 -based carbides, which tends to segregate along grain boundaries at higher sintering temperatures while locate at triple junctions at lower sintering temperatures . High mechanical strength of 599 MPa were obtained when 4/3 mol.% Cr 2 C 3 was added and sintered at 1900 °C. The fine grain size and Cr 3 C 2 -based carbides are responsible for the high mechanical properties. More Cr 2 C 3 addition results in lower mechanical properties due to excessive Cr 3 C 2 -based carbides.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Xiaoyu Du,Tong Gu,Jingyu Xu,Yanqing Qu,Hongge Jia,Shuangping Xu,Mingyu Zhang,Jun Chen
Covalent organic framework (COF) membranes have garnered significant attention as a promising separation technology for dye wastewater treatment, owing to their meticulously ordered pore structure and exceptional chemical stability. The Polyamide COF (Amd-COF) membrane, characterized by amide-linkages, exhibits excellent hydrophilicity and chemical stability, whereas the polyamine COF (Amn-COF) membrane, featuring amine-linkages, demonstrates remarkable flexibility and resistance to chlorine. In this study, we present the synthesis of defect-free Amd/TA-PVA/Amn COF composite membranes with large area and continuous structure through multi-interfacial polymerization. The incorporation of an intermediate layer (TA-PVA) enables stable formation of strong hydrogen bonds between Amd-COF and Amn-COF, thereby enhancing the durability of the composite membranes. Due to the unique structural features and functional groups of the Amd/TA-PVA/Amn COF composite membranes, they exhibit not only high water permeability (119.24 L•m −2 h −1 bar −1 ) but also exceptional rejection efficiency towards Rhodamine B, achieving up to 96.55 % removal. Specifically, the membranes treated with a chlorination intensity of 2000 ppm exhibit stable permeance and dye rejection performance. Moreover, these membranes exhibit exceptional stability in both structure and performance over multiple cycles. This can primarily be attributed to the highest density of amino moieties and phenolic hydroxyl groups on their surface. This work underscores the significant potential of COF membrane incorporating amide and amine functionalities for high-performance separation and anti-chlorine applications.
研究领域:
材料科学
·
化学工程
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Feng Cheng,Chaofan Yao,Xiaotong Yi,Hongbin Li,Yudong Huang,Jinmei He
This work reports the development of an advanced multifunctional hydrogel system designed to address the challenges of infectious wound healing and tissue regeneration. We constructed a polyvinyl alcohol–borax/GelMA hybrid hydrogel matrix, endowing the photocurable hydrogel with excellent mechanical properties and self-healing capability. Bacterial cellulose (BC), a naturally derived biopolymer synthesized by specific microbial strains, was incorporated into the hydrogel matrix to enhance its mechanical properties, structural stability, and biocompatibility, while also serving as a scaffold for cellular adhesion and proliferation. Additionally, the hydrogel was functionalized with tannic acid (TA)-modified MXene nanosheets, which imparted superior antibacterial efficacy and enabled photothermal therapy under near-infrared (NIR) light irradiation. In vitro evaluations confirmed the hydrogel's excellent biocompatibility and antibacterial performance, while in vivo studies demonstrated its ability to significantly accelerate the healing of infectious wounds. This was achieved by effectively reducing bacterial load, promoting tissue regeneration, and alleviating local inflammation under NIR irradiation. These findings highlight the potential of this BC-based hydrogel system as a robust platform for combating bacterial infections, facilitating wound healing, and supporting tissue regeneration in the context of complex skin injuries.
研究领域:
生物医学工程
·
纳米医学
·
组织工程
·
感染控制
·
再生医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Shiwei Tian,Yaqi Zhang,Qiankun Sha,Xingxiang Zhang,Tian Yang,Xuhuan Yan,Na Han
Polyphenylene sulfide (PPS) microporous membranes have garnered extensive research enthusiasm concerning their outstanding permeation performance and separation accuracy in treating oily wastewater. Nevertheless, the inherent hydrophobic chemical structure, along with the noticeable concentration polarization effect, predisposes them to severe membrane contamination during the separation process. Accordingly, it is desirable to design a PPS self-cleaning membrane with superior anti-fouling capability, fast transport, and remarkable flux recovery. This study marks the first combination of PPS membrane materials with the photo-Fenton process. In detail, the polyphenol (tannic acid, TA)-polycation (polyethyleneimine, PEI)-metal ion (Fe 3+ ) double cross-linking coatings were first assembled on the PPS substrate surface. Subsequently, β-FeOOH photocatalysts were synthesized through in-situ mineralization to further strengthen the hydrophilicity of the membranes. The obtained PPS/TA-PEI/β-FeOOH composite membrane achieved exceptional separation of diverse oil-in-water (O/W) emulsions. The PPS/TA-PEI/β-FeOOH membranes exhibited in-air superhydrophilic and under-water superoleophobicity, exhibiting under-water oil contact angles greater than 151° for diverse oil agents. The fabricated composite membranes displayed high permeability (a flux of the petroleum ether-in-water (P/W) emulsion reached 3400.5 L m −2 h −1 bar −1 driven by a pressure of 0.05 MPa) along with ideal oil rejection (98.6 %). Significantly, the PPS/TA-PEI/β-FeOOH membrane possessed powerful photo-Fenton self-cleaning capability, and its flux recoveries of the contaminated membrane exceeded 90.3 % for varied O/W emulsions after being cleaned by visible light for 10 min. We believe that our research presents a novel approach for the exploitation of PPS-based photo-Fenton self-cleaning membranes, which also exhibit great applicative potential in oily wastewater treatment.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
REACTIVE & FUNCTIONAL POLYMERS
·
2025
·
IF 5.1
Shuxin Chen,Liting Wang,Wenxiang Ni,Hui Qiu
The self-assembly behavior of the MPNs-based adsorbent is substantially influenced by changes in solution pH. In this study, a highly negatively charged tannic acid‑zirconium (TA-Zr) macromolecular network has been successfully synthesized. As pH increases from 3 to 11, the coordination structure of TA with Zr(IV) changes from mono- to tri-complexation state, resulting in enhanced electronegativity and increased structural stability of tri-complex TA-Zr(9) due to its higher charge density. The TA dissolution experiments and zeta potential measurements confirm this conclusion. The tri-complex TA-Zr(11) underwent structural changes in its macromolecular network due to partial zirconium hydroxide formation under strongly alkaline conditions, as confirmed by X-ray photoelectron spectroscopy analysis, which in turn impacted its stability. Meanwhile, the adsorption capacity of TA-Zr materials for Pb(II) ion increases with the pH of the synthesis solution. XPS analysis suggested that the underlying adsorption mechanism involved ligand exchange between Pb(II) ion and phenolic hydroxyl groups on TA-Zr(9). After batch adsorption-regeneration cycles, TA-Zr(9) could be regenerated with an acidic solution while maintaining consistent Pb(II) ion removal efficiency. Furthermore, TA-Zr(9) effectively treated 12,150 bed volumes (BV) of synthetic water at pH 5.6, which is 18 times more than commercial D001. These results confirm that TA-Zr(9) shows great potential as an effective adsorbentfor Pb(II) removal in practical wastewater treatment, making it a promising candidate for water remediation.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Zhaohuang Zhong,Xindong Li,Lijinhong Huang,Siwei Yu,Jianghui Jia,Jiaju Huang,Meng Cai,Qinyan Zhu,Luo Bao,Wanfu Huang
Retrieval of rare earth ions from dilute wastewater produced from in-situ leach mining is a crucial approach to effectively mitigate the shortage of rare earth resources, and the employment of the membrane technology for recuperation of ionic rare earths is an energy-efficient and eco-friendly solution. In this study to optimize the use of the membrane technology for ionic rare earths recovery, TA@MOF-808 was fabricated by combining tannic acid (TA) with MOF-808 and then incorporated as nanoparticles into a polyetherimide (PEI) base membrane. On this basis, PA/PEI-TA@MOF-808 thin-film composite membranes were prepared via interfacial polymerization. TA@MOF-808 with its hydroxyl and carboxyl functional groups generated hydrogen and covalent bonds with the secondary amine groups of piperazine (PIP), which stored PIP and regulated its diffusion rate into the organic phase. Thereby, the membrane surface charge was modulated under acidic conditions, and a separation layer was reconstituted, improving the structural and operational stability of the membranes. The PA/PEI-TA@MOF-808 membrane exhibited a water flux of 42.1 L·m −2 ·h −1 , and La 3+ , Y 3+ , and Gd 3+ retention rates of 97.7 %, 96.7 % and 97.4 %, respectively. Separation tests, acid resistance tests, long-term operational stability tests and actual rare earth wastewater treatment tests revealed the PA/PEI-TA@MOF-808 membrane possessed outstanding ionic rare earth separation capability, consistent membrane flux, notable acid resistance, and operational stability, suggesting a bright future in the application for ionic rare earth recovery.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Pi Ding,Zhili Wang,Zeen Wu,Mingchao Hu,Weipei Zhu,Na Sun,Renjun Pei
The majority of current methods of isolating circulating tumor cells (CTCs) rely on a biomarker. However, the isolation efficiency may be compromised due to the heterogeneity of CTCs. In this work, a simple and broad-spectrum method is established to efficiently isolate the heterogeneous CTCs from patient blood samples using tannic acid (TA)-functionalized magnetic nanoparticles (MNPs). The TA-functionalized MNPs (MNPs-TA) inhibit the nonspecific adhesion of peripheral blood mononuclear cell (PBMC) and enhance cancer cell capture, resulting from the unique interaction between TA and glycocalyx on cancer cells. The MNPs-TA was demonstrated to effectively capture seven kinds of cancer cells (HeLa, PC-3, T24, MAD-MB-231, MCF-7, HT1080, A549) from artificial samples (62.3–93.7%). Moreover, this epithelial cell adhesion molecule (EpCAM)-independent CTC isolation method was also tested using clinical blood samples from patients with different cancers (21 patients), which may provide a universal tool to detect CTCs in the clinic.
研究领域:
纳米技术
·
肿瘤学
·
生物医学工程
·
临床研究
✓ 已验证
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2019
·
IF 3.45
Tianhang Zhang,Timothy Daniel Christopher,Saifang Huang,Yan’gai Liu,Wei Gao,Tilo Sӧhnel,Peng Cao
In this work, pressureless sintering (PLS) method was used to prepare Li 7 La 3 Zr 2 O 12 based Al-free garnet electrolytes with the substitution of tantalum (Ta). A series of Ta-doped lithium garnets Li 7- x La 3 Zr 2- x Ta x O 12 (LLZTO, x = 0, 0.25, 0.5, 0.75 and 1.0) were prepared, and the effect of Ta on the structure, densification and ionic conductivity was investigated. Both relative density and ionic conductivity of the LLZTO pellets are dependent on the content of Ta substitution, with the maximum values being reached at x = 0.5. We also studied the stability and degradation mechanism of lithium garnets (Li 6.5 La 3 Zr 1.5 Ta 0.5 O 12 ) in humid air with relative humidity of above 70%. It is revealed that after exposure in the humid air for 4 weeks, a layer of LiOH∙H 2 O was observed on the grain boundaries, which lowered its ionic conductivity considerably. In comparison, the pellet stored in a desiccator had clear surface with negligible change in the ionic conductivity.
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
危险品化学品经营许可证（带存储）