JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Qixin Yang,Zengkun Wang,JingJing Li,Jing Di,Xikun Gai,Yaofeng Zhu
Distinguished by a unique three-dimensional (3D) network structure and commendable electrical conductivity, one-dimensional (1D) carbon nanofibers (CNF) exemplifies a pivotal class of microwave absorption materials. However, their effective absorption bandwidth (EAB) suffers from inadequacy on account of poor impedance matching. To conquer this drawback, a novel in situ dual-doping strategy was employed in this article. Incorporating boron (B) and low-valence-state molybdenum (Mo), this strategy is merged with electrospinning and high-temperature treatment, aimed to fabricate Mo and B co-doped carbon nanofibers (Mo-B/CNF) with superior microwave absorption performance. An array of characterization techniques were leveraged to delve into the microstructure and properties of the Mo-B/CNF. The analysis corroborated a uniform distribution of Mo and B elements within the carbon matrix, alongside the formation of Mo 2 N species. Outstanding microwave absorption was identified for the resulting Mo-B/CNF, accompanied by a minimum reflection loss of -57.7 dB at 10.3 GHz and an EAB of 6.05 GHz. As further demonstrated by radar cross-section simulations, the Mo-B/CNF is capable of attenuating electromagnetic scattering from metallic backplanes and large unmanned aerial vehicles, which highlights their promise in radar stealth applications. Following a structural optimization via 3D electromagnetic simulation software, the metamaterial fabricated from Mo-B/CNF attains an ultra-broad effective absorption bandwidth (EAB) of 32.1 GHz across the 2-40 GHz frequency range. This study delineates the electromagnetic wave absorption traits of Mo-B/CNF, and provides another insight for designing next-generation microwave absorption materials.
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Separations
·
2025
·Vol. 12
·期 10
·276
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IF 2.7
Xiaohan Zhu,Liang Song,Jia Miao
The development of efficient and sustainable advanced oxidation processes (AOPs) for organic pollutant removal is of great significance for water purification. In this study, a CoFeNi-layered double hydroxide (CoFeNi-LDH) catalyst was synthesized and applied for the simultaneous activation of peroxymonosulfate (PMS) and ozone to degrade rhodamine B (RhB) in aqueous solution. The CoFeNi-LDH/PMS/ozone system achieved a remarkable RhB removal efficiency of 95.2 ± 1.2% within 8 min under neutral pH conditions. Systematic parametric studies revealed that synergistic interactions among CoFeNi-LDH, PMS, and ozone contributed to the generation of reactive oxygen species (ROS), primarily sulfate radicals (SO4•−) and singlet oxygen (1O2), as confirmed by EPR and quenching experiments. Density functional theory (DFT) calculations demonstrated that ozone enhanced PMS adsorption and activation at CoFeNi catalytic sites. The catalyst exhibited robust magnetic recyclability and structural stability after repeated use. This work highlights a synergistic catalytic strategy for PMS/ozone activation, offering an effective and environmentally friendly platform for dye wastewater remediation.
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DYES AND PIGMENTS
·
2025
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IF 4.2
Anzhi Hu,Yingxiu Man,Changjiang Yu,Wenlong Ma,Xing Guo,Qingbin Yuan,Yaxiong Wei,Erhong Hao,Chang-Cheng Wang,Jiazhu Li
Lipid droplets are now understood to be dynamic signaling hubs, with their morphological and polarity changes linked to obesity and related metabolic disorders. However, visualizing these processes is challenging, as most of existing probes suffer from short emission, small Stokes shifts, or poor photostability. Herein, we report a new family of color-tunable coumarino[3,4- b ]BODIPY dyes (C[ b ]B) that function as high-performance probes for lipid droplet imaging in the visible to near-infrared (NIR) region. The key to their properties lies in the fusion of a coumarin donor to the BODIPY acceptor core, creating a strong intramolecular charge-transfer (ICT) system. These dyes display high molar absorptivity (logε > 4.8), and bright, tunable emission (Φ F up to 95%) across the visible-near-infrared region. Peripheral donor tailoring narrows the HOMO–LUMO gap by raising the HOMO (−5.80 → −4.90 eV) while the LUMO remains fixed near −3.55 eV, compressing the electrochemical gap from 2.20 to 1.35 eV and red-shifting absorption from 531 to 711 nm. X-ray crystallography reveals nearly planar cores that switch to twisted conformations (up to 18°) upon styryl extension. Applied in live HeLa cells, the probes selectively stain lipid droplets with low cytotoxicity across the visible-NIR spectrum.
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CRYSTAL GROWTH & DESIGN
·
2026
·
IF 3.6
Wei Guo,Laixue Pang,Weipeng Kong,Rui Kuang,Xiaoying Wang,Xiuying Hu,Xiaofeng Tian,Shuxia Bai,Yongling Ding,Huadong Sun
In this study, a series of sodalite/BiOBr composite photocatalysts were successfully synthesized via a liquid-phase self-assembly strategy and applied to the efficient visible-light-driven degradation of Rhodamine B (RhB). Structural characterizations confirmed the successful integration of sodalite (SOD) and BiOBr, with the SOD/BiOBr (3:7) composite exhibiting an optimal morphology, enhanced interfacial contact, and favorable physicochemical properties. The composite demonstrated broadened visible-light absorption, improved photogenerated charge carrier separation, and significantly enhanced photocatalytic activity, achieving a degradation efficiency of 97.82% within 15 min. Moreover, the SOD/BiOBr (3:7) composite exhibited excellent stability and recyclability, retaining 86.31% of its initial photocatalytic performance after four consecutive cycles. These findings highlight the great potential of SOD/BiOBr composites as highly efficient and reusable photocatalysts for the removal of organic pollutants. Furthermore, LC-MS analysis identified several degradation intermediates, and two possible degradation pathways─N-deethylation and cleavage of the conjugated ring structure─were proposed. Radical trapping experiments indicated that hydroxyl radicals (•OH) and photogenerated holes (h+) were the dominant reactive species involved in the photocatalytic degradation process.
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PHYTOMEDICINE
·
2026
·
IF 11.3
Yingxin Long,Wenzhang Dai,Hui Ding,Yuan Xiao,Xiuhua Mao,Yujie Wang,Hekun Zeng,Jianhao Zhao,Junlin Wang,Lipeng Xu,Hong Nie
Background Allergic contact dermatitis (ACD) is an immunological disorder elicited by antigen exposure, which activates the immune system and leads to T cell-mediated inflammation. Purpose This study aimed to investigate the role of TCM-loaded thermosensitive composite hydrogel in alleviating ACD and elucidated its underlying mechanisms in HaCaT cell induced by TNFα/IFNγ. Methods SADBE-induced ACD mouse and TNFα/IFNγ-induced damage to HaCaT cells were established. CFB expression was knocked down in HaCaT cells via shRNA plasmid transfection. UPLC-MS was employed to analyze the chemical composition of the TCM compound XFP. The composite F127-PEG200/XFP@SA-GEL-PVP was prepared by encapsulating XFP in microspheres via a blend of sodium alginate (SA), gelatin (GEL), and polyvinylpyrrolidone (PVP), followed by their integration into a hydrogel matrix of Pluronic F127 (F127) and PEG200. Scratching behavior, skin fold thickness, spleen-thymus index, histological analysis, photoacoustic imaging system was used to evaluated the effect of F127-PEG200/XFP@SA-GEL-PVP. Finally, expression levels of CFB, RANKL, IL4, IL13, TSLP, and IL25 were analyzed by immunohistochemistry and western blot. Results CFB regulates Th2-type cytokine expression via C3 in the TNFα/IFNγ-induced HaCaT cells. F127-PEG200/XFP@SA-GEL-PVP exhibited stable physicochemical properties and favorable biocompatibility. Treatment with F127-PEG200/XFP@SA-GEL-PVP significantly reduced scratching behavior, skin fold thickening, and inflammatory infiltration in ACD mice, inhibited mast cell degranulation, restored vascular morphology and local blood flow in skin and spleen tissues, and downregulated the expression levels of Th2-type cytokines (IL4, IL13, TSLP) and pro-inflammatory mediators (CFB, RANKL, IL25). Conclusion These findings demonstrate that F127-PEG200/XFP@SA-GEL-PVP exerts protective effects in ACD. Silencing CFB restored HaCaT cell viability after TNFα/IFNγ treatment and the modulation of the C3 pathway reduced Th2-type cytokine expression.
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PubMed
高影响因子
Journal of Molecular and Engineering Materials
·
2021
·
IF 0
Lili Feng,Pengyu Wang,Hansen Yang,Zhuo Chen,Shuhui Bo
A charge transfer dye with the D– π –A structure was synthesized by Pd catalyzed Hartwig–Buchwald coupling and Knoevenagel condensation reaction, using N, N-dihexylbenzo[b]thiophen-6-amine as donor and 2-(3-cyano-4, 5, 5-trimethylfuran-2 (5H)-ylidene)malononitrile (TCF) as acceptor. The solvatochromic and pH switch properties of the as-synthesized dye were investigated through UV-vis absorption and fluorescence emission spectra. A positive solvatochromism of the dye in different polar solvents was observed along with a visible color change of the solution. By adding acid/base into the DMSO solution of the dye, the color as well as the absorption and emission spectra of the solution exhibited outstanding characteristics of pH switch.
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COLLOIDS AND SURFACES B-BIOINTERFACES
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2026
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IF 5.6
Na Wang,Ye Zhang,Wen Huang,Wei Du,Chunhua Ma,YuQiang Fang,Chunyu Zeng
Salvianolic acid B (SaB) demonstrates significant cardioprotective effects against myocardial ischemia–reperfusion injury (I/R). However, its clinical application is limited by rapid metabolism and poor bioavailability. To address this, we synthesized SaB-loaded organic quantum dots (SaB@qd) via a hydrothermal method and functionalized them with the near-infrared (NIR) dye cypate (SaB@qd@Cy). Proteomic analysis of cardiac tissues from I/R model rats identified SIRT2 as a key downregulated protein. Molecular docking and cell membrane chromatography confirmed SaB as a natural SIRT2 agonist, binding specifically to the SER-263 residue. SaB@qd@Cy enhanced myocardial SaB accumulation by 3.2-fold compared to free SaB (P<0.01). In vivo, SaB@qd@Cy reduced the infarct area by 41% (compared to 28% reduction by mitochondrial-targeted CoQ10 nanoparticles) and attenuated inflammatory cytokine expression (IL-1β, TNF-α) via the SIRT2/NLRP3 pathway. Additionally, cypate enabled real-time NIR imaging of ischemic borders, with a temperature increase of 15.3±1.2°C under 808 nm laser irradiation. This study presents a novel theranostic nanoplatform that integrates natural compounds with photoresponsive quantum dots for targeted therapy and intraoperative imaging in I/R management.
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PubMed
高影响因子
Frontiers in Pharmacology
·
2023
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IF 5.6
Li Yingzi,Liu Xiaoyan,Li Ludi,Zhang Tao,Gao Yadong,Zeng Kewu,Wang Qi
Eupalinolide A (EA; Z-configuration) and eupalinolide B (EB; E-configuration) are bioactive cis-trans isomers isolated from Eupatorii Lindleyani Herba that exert anti-inflammatory and antitumor effects. Although one pharmacokinetic study found that the metabolic parameters of the isomers were different in rats, metabolic processes relevant to EA and EB remain largely unknown. Our preliminary findings revealed that EA and EB are rapidly hydrolyzed by carboxylesterase. Here, we investigated the metabolic stability and enzyme kinetics of carboxylesterase-mediated hydrolysis and cytochrome P450 (CYP)-mediated oxidation of EA and EB in human liver microsomes (HLMs). We also explored differences in the hydrolytic stability of EA and EB in human liver microsomes and rat liver microsomes (RLMs). Moreover, cytochrome P450 reaction phenotyping of the isomers was performed via in silico methods (i.e., using a quantitative structure-activity relationship model and molecular docking) and confirmed using human recombinant enzymes. The total normalized rate approach was considered to assess the relative contributions of five major cytochrome P450s to EA and EB metabolism. We found that EA and EB were eliminated rapidly, mainly by carboxylesterase-mediated hydrolysis, as compared with cytochrome P450-mediated oxidation. An inter-species difference was observed as well, with faster rates of EA and EB hydrolysis in rat liver microsomes. Furthermore, our findings confirmed EA and EB were metabolized by multiple cytochrome P450s, among which CYP3A4 played a particularly important role.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Yan Bao,Jingxiang Chang,Yuanxia Zhang,Lu Chen
Superhydrophobic coating can be widely used in many fields because it is not easily wetted by water like lotus leaves. However, most of superhydrophobic coating is difficult to withstand abrasion attack. Herein, hollow SiO 2 /PAA-b-PS Janus microspheres were synthesized via emulsion interfacial synthesis method using amphiphilic block copolymer of polyacrylic acid block polystyrene (PAA-b-PS) and hollow NH 2 -SiO 2 microspheres as raw materials in this paper. Because the hemisphere grafting organic polymer chain was hydrophobic and the other hemisphere was hydrophilic and contained amino groups, hollow SiO 2 /PAA-b-PS Janus microspheres exhibited amphiphilic and asymmetrical nature, which was a typical inorganic/polymer Janus microspheres. Robust superhydrophobic coating was facilely achieved using hollow SiO 2 /PAA-b-PS Janus microspheres on polyurethane pretreated substrate like leather and fabric. Robust superhydrophobic coating after 90 sandpaper abrasion cycles still retained excellent superhydrophobicity. As expected, robust superhydrophobic coating had prominent self-cleaning property against different pollutants and was capable to separate a variety of oil–water mixtures with ultrahigh separation efficiency. The separation efficiency of robust superhydrophobic coating for oil–water mixture was maintained above 98% even after 40 separation cycles. In total, robust superhydrophobic coating constructed by hollow SiO 2 /PAA-b-PS Janus microspheres possesses distinguished superhydrophobicity, abrasion resistance, self-cleaning, oil–water separation capacity and universality, which shows a promising application in multifunctional coating.
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Inorganic Chemistry Frontiers
·
2022
·Vol. 9
·期 10
·2298-2304
·
IF 7.779
Jiongquan Chen,Wenqi Jin,Yanhui Zhang,Yun Yang,Zhihua Yang,Shilie Pan
A new alkaline-earth and rare-earth borate fluoride, Ba10LuB18O32F13, the first example of borate in the Lu–B–O–F system, has been successfully synthesized in a high-temperature vacuum system. It crystallizes in the orthorhombic system, with the Fmm2 space group and the parameters a = 16.5749(6) Å, b = 16.7644(9) Å, c = 13.6222(6) Å, and Z = 4. It represents a new fundamental building block (FBB), [B9O22], with the notation 9:[2(4:2Δ + 2T) + T], in which two [BO3] triangles and two [BO4] tetrahedra are enclosed into a [B4O10] ring and every two [B4O10] rings are bridged by a [BO4] tetrahedron. The [B9O22] FBBs are further condensed into a 3D network with two types of channels that accommodate Ba2+ and Lu2+ cations. The UV cut-off edge is below 190 nm, indicating the application potential of Ba10LuB18O32F13 in the DUV region. Additionally, to further explore the structural novelty of Ba10LuB18O32F13, a comparison with all anhydrous borates with 18 boron atoms in their chemical formula was carried out. The fascinating results indicate that [B9O22] has been discovered for the first time, enriching borate fluoride structure chemistry.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2022
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IF 5.518
Lili Ma,Xueting Feng,Fanghui Cai,Chunyu Sun,Hanming Ding
Metal-organic frame materials are intensively investigated in catalysis due to their outstanding thermal stability, large specific surface area, and ultra-high porosity. In this work, a cobalt-doped zirconium-based metal-organic framework, Co-UiO-66, was synthesized by the hydrothermal approach. Co-UiO-66 could successfully activate peroxymonosulfate (PMS) ions to produce reactive oxygen species for the degradation of rhodamine B (RhB) when it was used as a Fenton-like catalyst. The catalyst with 4% Co in mass in UiO-66 (4% Co-UiO-66) showed the highest degradation efficiency. About 97.3% of RhB (50 ml of 30 mg L −1 ) was degraded in 45 min under simulated sunlight when 10 mg of 4% Co-UiO-66 was used. The degradation efficiency was much higher than that when pure UiO-66 was used. Furthermore, it was even slightly higher than when cobalt ions were used as the activator. The single-atomic dispersion and confinement effect in Co-UiO-66, as well as the strong absorption in the visible light region are responsible for the high catalytic efficiency.
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高影响因子
CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Zhongli Liu,Haizeng Wang,Jizhou Duan,Baorong Hou
Bi 2 WO 6 /AgIO 3 (BWO/AIO) nanosheet composites were constructed by a two-step hydrothermal method . The structure, morphology and photoelectrochemical properties of the composites were characterized by X-ray photoelectron spectroscopy (XPS), UV–vis diffuse reflectance spectra (UV-DRS), transmission electron microscopy (TEM), impedance, X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). The constructed photocatalyst composites exhibited the best photocatalytic performance at a molar ratio of BWO/AIO-0.8. In addition, there was complete degradation of RhB by the BWO/AIO-0.8 in 180 min under illumination, and the bactericidal rates were 99.10%, 97.32% and 96.3% for P. aeruginosa , S. aureus and E. coli, respectively, in 60 min. Based on the energy band structure of the semiconductor and radical trapping experiments, the S-scheme heterojunction was associated with the enhanced photocatalytic properties.
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