MATERIALS LETTERS
·
2019
·
IF 3.019
Meihua Fang,Jinpeng Lv
Passive thermal control coatings (TCCS) have been widely used to tune the thermal equilibrium of spacecraft. However, the performance of such coatings undergoes serious degradation due to the intensive UV absorption and the radiation damage of the pigments. We developed a Zn 2 SiO 4 pigment with a solar absorptance (α s ) as low as 0.078, which shows a distinctly high reflectance in the whole solar-radiation spectrum, especially in the high energy UV wavebands. Furthermore, after performing proton irradiation , the α s of ZnO, ZnTiO 3 pigments increase from 0.153 and 0.101 to 0.277 and 0.521, respectively, while Zn 2 SiO 4 rises to 0.212, which exhibits remarkable radiation resistance. We evidenced that Zn 2 SiO 4 pigments will not only significantly boost the performance of thermal control coatings but also be beneficial for UV shielding applications.
研究领域:
材料科学
·
航天器热控制
·
颜料化学
·
辐射效应
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DOI
高影响因子
Journal of Materials Chemistry A
·
2021
·Vol. 9
·期 11
·7085-7093
·
IF 12.732
Zhaoyang Sun,Lanlan Feng,Chengdong Xiong,Xinyang He,Liming Wang,Xiaohong Qin,Jianyong Yu
Moist-electric generators (MEGs) that can directly harvest electricity from ubiquitous moisture are some of the most fascinating and promising candidates to supply renewable and clean power for next-generation portable electronics. However, the lack of necessary wearable properties such as air permeability and comfort, low voltage output and complicated fabrication processes of current MEGs have severely hindered their practical application. Herein, we for the first time demonstrate a breathable, flexible, deformable, large-area and easily fabricated electrospun nanofiber fabric as an efficient MEG. The maximum generated voltage reaches 0.83 V, outperforming all reported polymer based MEGs. Different from past research, two electricity generation mechanisms coexist in the electrospun nanofiber fabric due to the unique porous structure with numerous micro–nano scale channels. The electricity is not only extracted from ion diffusion driven by a concentration gradient, but is also induced by the streaming current of a liquid flowing along a charged surface in solid channels. Beyond power generation, the electrospun nanofiber fabric based wearable MEGs also demonstrate successful applications in self-powered respiratory monitoring, wind speed detection and touching detection. These findings offer new insight into the future design and development of innovative and truly wearable electronics.
研究领域:
材料科学
·
能量收集
·
可穿戴技术
·
纳米技术
·
柔性电子学
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DOI
高影响因子
KEY ENGINEERING MATERIALS
·
2016
·
IF 0
Shen Neng Huang,Xin Du Chen,Zhi Feng Wang,Jun Zeng,Fei Yu Fang,Han Wang
There are massive reports about near-field electrospinning (NFES) in the literature and the NFES has great tendency for scientific and industrial applications. It is important to improve the machining efficiency of electrospinning. Through the study of the multi-nozzle near-field electrospinning, a new method by adjusting the electrode-to-collector distance (E-C-D) is presented in this paper to make sure the jets with a straight line. The method is divided into two steps: (1) to adjust the E-C-D larger to get the jet at each nozzle, (2) to make the E-C-D smaller enough to get straight jets. Moreover, this paper simulates the electric field density which helps to provide a further understanding on the process of NFES. The experimental results contribute to making a better control on the jets in NFES.
研究领域:
材料科学
·
纳米制造
·
静电纺丝技术
·
计算仿真
✓ 已验证
DOI
ADVANCED MATERIALS
·
2026
·
IF 26.8
Yao Xiao,Xu Chen,Jingnan Liao,Jinjin Wang,Lili Lu,Huan Chen,Chengu Niu,Mingyuan Wang
Ulcerative Colitis (UC) treatments often lack target specificity and have significant side effects. A key pathological driver is the excessive necroptosis of intestinal epithelial cells (IECs), which disrupts the gut barrier. To address this, we designed an intelligent oral theranostic nanoplatform, CurN@I, to dismantle the necroptosis-inflammation axis. CurN@I consists of a barium sulfate (BaSO 4 ) core for computed tomography (CT) imaging, encapsulated within a pH-responsive silk protein nanosponge. This scaffold is co-loaded with a necroptosis inhibitor (Necrostatin-1s, Nec-1s) and an antioxidant (demethoxycurcumin, DMC). The nanostructure is condensed in the acidic stomach but swells at the neutral pH of the inflamed intestine for localized drug release. Its negative surface charge facilitates durable electrostatic adhesion to the inflamed mucosa. In murine UC models, oral CurN@I significantly outperformed first-line clinical drugs. Mechanistic analysis showed it inhibits IEC necroptosis, alleviates oxidative stress, promotes barrier regeneration, and reshapes the gut microbiome. This work presents a non-invasive, targeted oral strategy that integrates diagnosis with multi-faceted therapy to restore intestinal homeostasis, demonstrating strong potential for clinical translation.
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产品关联
DOI
PubMed
高影响因子
OPTICAL FIBER TECHNOLOGY
·
2026
·
IF 2.7
Shaojun Zhang,Ziyu Hu,Shaowa Lü,Xueyan Bi,Yanyang Lei
This study presents a novel optical fiber sensor based on a MoS 2 @Fe 3 O 4 @CTS ion-imprinted polymer (MFC-IIP) functionalized single-mode fiber-no-core fiber-multi-mode fiber-no-core fiber-single-mode fiber (SNMNS) structure for the quantitative detection of trace cadmium ions (Cd 2+ ) in solution. The MFC-IIP nanomaterial was coated onto the surface of the SNMNS fiber structure as a selective sensing membrane to enable highly sensitive and specific detection of Cd 2+ . The experimental results demonstrate that the sensor achieves a maximum detection sensitivity of 119.06 nm/μM for cadmium ions, with a limit of detection (LOD) as low as 0.77 nM. This study introduces a novel detection approach applicable to real-time online water quality monitoring, early diagnosis of chronic cadmium poisoning, and the rapid analysis of heavy metal cadmium in complex traditional Chinese medicine matrices.
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2014
·
IF 4.086
Tian Xu,Guangjin Wang,Cong Liang,Mu Pan
Nitrogen shows a positive influence on the ORR activity of certain catalysts, such as N-doped carbon and N-doped ZrO 2 . In this paper, we report a method to dope nitrogen into La 2 Zr 2 O 7 nanoparticles by the sol-gel process combined with ammonolysis. XPS results indicate that the nitrogen content in La 2 Zr 2 O 7 is approximately 0.92 at.%. Compared to the ORR activity of La 2 Zr 2 O 7 , ORR activity of the N-doped La 2 Zr 2 O 7 is considerably enhanced. Density functional theory (DFT) calculations indicate that the band gap is reduced in N-doped La 2 Zr 2 O 7 , which may be one of the factors that contribute to the improvement.
研究领域:
材料科学
·
电化学
·
催化
·
纳米材料
·
能量转换
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DOI
高影响因子
COMPOSITES SCIENCE AND TECHNOLOGY
·
2018
·
IF 5.16
Weiqiang Zhi,Shanglin Xiang,Renji Bian,Ruizhi Lin,Kaihua Wu,Tingwei Wang,Dongyu Cai
In this work, an emulsion method is applied to fill two-dimensional MXenes into polyurethanes (PUs). It shows that the addition of 0.5 wt% MXenes increase the yield stress, tensile strength and hardness of PUs by ∼70%, ∼20% and ∼13%, respectively. The mechanical enhancement is associated with the increase of hardness and reduction of water absorption. Morphologic study shows that a good dispersion of MXenes is achieved, in which ball milling is a key step for ensuring a stability of MXene-filled PU emulsions. Furthermore, FTIR analysis reveals the strong interaction between MXenes and PUs at molecular level.
研究领域:
材料科学
·
纳米复合材料
·
高分子工程
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
·
2023
·Vol. 33
·期 20
·11309-11320
·
IF 2.3
Zhang Dongbo,Feng Xiaolong,Song Ruiqing,Wang Ning,Zhang Yongsheng
Thermal barrier coating (TBC) is applied to protect the hot-section components of a gas turbine engine. In the present work, a La 2 (Zr 0.2 Ti 0.2 Y 0.2 YB 0.2 Nb 0.2 ) 2 O 7 high entropy oxide was designed, fabricated by a solid-phase reaction at 1400 °C, and subjected to an investigation of its properties. The results indicate that the La 2 (Zr 0.2 Ti 0.2 Yb 0.2 Y 0.2 Nb 0.2 ) 2 O 7 high entropy oxide had a pyrochlore structure. During synthesis, a small amount of La 2 TiO 5 was produced. The thermal conductivity of the La 2 (Zr 0.2 Ti 0.2 Yb 0.2 Y 0.2 Nb 0.2 ) 2 O 7 high entropy oxide was approximately 0.8855 W·m -1 ·K -1 at room temperature. The coefficient of thermal expansion of the La 2 (Zr 0.2 Ti 0.2 Yb 0.2 Y 0.2 Nb 0.2 ) 2 O 7 high entropy oxide was approximately 9.374 × 10 −6 K −1 at 1000 °C. To improve the service life of the TBC composed of the La 2 (Zr 0.2 Ti 0.2 Yb 0.2 Y 0.2 Nb 0.2 ) 2 O 7 , a double-layer structural coating composed of La 2 (Zr 0.2 Ti 0.2 Y 0.2 YB 0.2 Nb 0.2 ) 2 O 7 and yttria-stabilized zirconia (YSZ) layers was designed and produced on a NiCoCrAlY alloy by laser cladding. The thermal cycling behavior of the double-layer coating was studied at 1050 °C. The results indicate that a La 2 (Zr 0.2 Ti 0.2 Yb 0.2 Y 0.2 Nb 0.2 ) 2 O 7 single-phase defective-fluorite high entropy oxide was produced after preparation and thermal cycling. The spallation of the double-layer coating composed of La 2 (Zr 0.2 Ti 0.2 Yb 0.2 Y 0.2 Nb 0.2 ) 2 O 7 /YSZ occurred after 70 thermal cycles at 1050 °C. The double-layer coating composed of La 2 (Zr 0.2 Ti 0.2 Yb 0.2 Y 0.2 Nb 0.2 ) 2 O 7 /YSZ can increase the thermal cycling lifetime of TBCs containing high entropy oxides.
研究领域:
材料科学
·
表面工程
·
陶瓷材料
·
高温材料
·
热障涂层技术
✓ 已验证
DOI
高影响因子
CEMENT AND CONCRETE RESEARCH
·
2016
·
IF 3.48
Zuhua Zhang,John L. Provis,Jin Zou,Andrew Reid,Hao Wang
Variations between fly ashes can lead to significant differences in the geopolymers derived from them, in both microstructural and mechanical properties. This study assesses the effect of physical, crystallographic and chemical characteristics of fly ash on geopolymerisation performance and the strength of the resulting binders. Physical and glass chemistry factors are combined to develop a comprehensive index to evaluate the suitability of fly ashes for the production of high-strength geopolymers. An equation for this index is proposed, developed using five typical low-calcium fly ashes and then validated against a further eight literature datasets, showing a good relationship between the ranking order of the calculated index and the compressive strengths of geopolymer pastes produced with comparable activator and paste workability. This index can be used to screen the source materials, which is of significant value in moving alkali activated cements towards acceptance in practice.
研究领域:
材料科学
·
硅酸盐化学
·
建筑材料
·
固废资源化
·
胶凝材料化学
✓ 已验证
DOI
高影响因子
Gels
·
2026
·Vol. 12
·期 6
·554
·
IF 6.4
Jianmei Chen,Yifan Wu,Tiantian Zhu,Hongyu Wu,Meiling Su,Zongguang Liu
Rapid rewarming is the most conventional and primary treatment for frostbite, yet effective adjunctive strategies remain absent. Conventional wound dressings, such as therapeutic hydrogels, tend to freeze and lack the necessary rewarming ability, rendering them unsuitable for direct application. Herein, we engineered an environmentally tolerant photothermal hydrogel, named 5A-Gel, featuring anti-swelling, anti-pressure, antioxidant, anti-freezing, and anti-drying capacities, for the treatment of frostbite. 5A-Gel was formed via dynamic crosslinking between gelatin and tea polyphenols in a glycerol/water solvent system. The incorporation of glycerol endowed the hydrogel with superior anti-swelling, anti-freezing, and anti-drying performance (remaining flexible at −20 °C and 37 °C for at least 60 days), along with concentration-dependent antioxidant activity due to tea polyphenols. Furthermore, 5A-Gel exhibited excellent photothermal effects, maintaining stable temperature and softness under 808 nm laser irradiation with robust cyclic durability. In addition, 5A-Gel showed slow degradability, excellent hemocompatibility, and favorable in vivo biosafety. Functionally, in a mouse frostbite wound model, photothermal rewarming therapy using 5A-Gel markedly expedited frostbite healing, promoting re-epithelialization, enhancing collagen deposition, alleviating inflammatory response, and stimulating neovascularization. Therefore, the as-prepared 5A-Gel serves as a competent therapeutic platform for in situ frostbite treatment and offers innovative principles for the rational engineering of high-performance hydrogel systems targeting frostbite tissue injuries.
✓ 已验证
DOI
PubMed
高影响因子
ACS Applied Engineering Materials
·
2026
·
IF 3.5
Jun Liu,Qiao Zhou,Pengcheng Zhang,Shuying Hu,Fang Zhou,Shuangshuang Ren,Ting Guo,Leiying Miao
Composite piezoelectric fibers provide a promising route toward flexible electromechanical devices, yet their engineering performance is often limited by the mechanically fragile inorganic–organic interface. In BaTiO3/poly(l-lactic acid) (PLLA) fibrous membranes, elastic mismatch, weak interfacial adhesion, and nanoparticle aggregation impede stress transfer from the polymer matrix to the piezoelectric ceramic phase, thereby restricting force-to-electricity conversion. Here, we report an anchor-chain interfacial architecture to reinforce this rigid–flexible interface. A polydopamine (PDA) layer serves as an inner anchoring unit on the BaTiO3 surface, while grafted polyethylene glycol (PEG) chains provide steric stabilization and promote topological entanglement with the PLLA matrix. This cooperative interface improves nanoparticle dispersion, and enhances interfacial bonding strength. Consequently, the BaTiO3@PDA@PEG/PLLA membrane exhibits markedly enhanced nanoscale and macroscale piezoelectric responses compared with unmodified BaTiO3/PLLA and BaTiO3@PDA/PLLA membranes. As a device-level demonstration, a 2 × 2 tactile sensor array fabricated from the reinforced fibrous membrane distinguishes tapping, touching, and stroking stimuli through characteristic voltage outputs and spatiotemporal signal patterns. This work provides an engineering-oriented interfacial reinforcement strategy for improving the structural and electromechanical performance of inorganic–organic composite piezoelectric fibers.
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DOI
高影响因子
ChemCatChem
·
2026
·Vol. 18
·期 16
·e71036
·
IF 4.1
Xiang Gao,Longfei Hong,Yuting Jiang,Yixuan Li,Lian-Hua Xu,Qingyu Liu,Huiyan Zhang,Sheng Chu
Polyolefin plastics, such as polyethylene (PE), possess chemically inert and nonpolar C–C backbones, making them difficult to recycle and causing persistent environmental pollution. The lack of green and highly selective upcycling methods has led to severe environmental concerns and resource waste. Photoelectrocatalysis utilizes high-energy photogenerated charge carriers to directionally upgrade plastic-derived small molecules into value-added chemicals. However, current photoelectrocatalytic technologies still face challenges in processing structurally inert bulk polymer plastics. In this study, we report a hydrothermal-photoelectrocatalytic tandem strategy to realize the upcycling of PE and other polyolefin plastics. The acetic acid product obtained from hydrothermal treatment are further converted into ethanol over an Au nanoparticle‑decorated GaN/Si (Au/GaN/Si) photocathode, achieving an optimal performance of a Faradaic efficiency of 57.6%. This tandem strategy also demonstrates excellent generality in the conversion of polypropylene (PP) and polyvinyl chloride (PVC), providing a green route for the upcycling of polyolefin plastics. Graphical Hydrothermal-photoelectrocatalytic tandem upcycling enables the conversion of chemically inert polyolefin plastics into value-added ethanol. The Au/GaN/Si photocathode achieves a Faradaic efficiency of 57.6% for ethanol production, while demonstrating broad applicability to PE, PP, and PVC plastics.
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）