Research
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2022
·
IF 11.036
Jiayu Di,Haojin Li,Li Chen,Siyu Zhang,Yinhui Hu,Kai Sun,Bo Peng,Jie Su,Xue Zhao,Yuqi Fan,Zhenhua Lin,Yue Hao,Peng Gao,Kui Zhao,Jingjing Chang
Exploring halogen engineering is of great significance for reducing the density of defect states in crystals of organic-inorganic hybrid perovskites and hence improving the crystal quality. Herein, high-quality single crystals of PEA2PbX4 (X = Cl, Br, I) and their para-F (p-F) substitution analogs are prepared using the facile solution method to study the effects of both p-F substitution and halogen anion engineering. After p-F substitution, the triclinic PEA2PbX4 (X = Cl, Br) and cubic PEA2PbX4 (X = I) crystals unifies to monoclinic crystal structure for p-F-PEA2PbX4 (X = Cl, Br, I) crystals. The p-F substitution and halogen engineering, together with crystal structure variation, enable the tunability of optoelectrical properties. Experimentally, after the p-F substitution, the energy levels are lowered with increased Fermi levels, and the bandgaps of p-F-PEA2PbX4 (X = Cl, Br, I) are slightly reduced. Benefitting from the enhancement of the charge transfer and the reduced trap density by p-F substitution and halogen anion engineering, the average carrier lifetime of the p-F-PEA2PbX4 is obviously reduced. Compared with PEA2PbI4, the X-ray detector based on p-F-PEA2PbI4 perovskite single-crystal has a higher sensitivity of 119.79 μC Gyair-1·cm-2. Moreover, the X-ray detector based on p-F-PEA2PbI4 single crystals exhibits higher radiation stability under high-dose X-ray irradiation, implying long-term operando stability.
研究领域:
材料科学
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光电材料
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辐射探测
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高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2026
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IF 4.8
Xueer Lin,Jiahui Zou,Guancheng Zhu,Linfeng Pang,Yuqi Chen,Yanyan Huang
Heterocyclic aromatic amines (HAAs), formed during the thermal processing of meat, are a group of carcinogenic and mutagenic compounds that pose significant risks to food safety and human health. Among them, 2-amino-3-methylimidazo[4,5- f ]quinoline (IQ) is considered one of the most hazardous substances, making its monitoring critically important. However, conventional detection techniques are often limited by sophisticated and costly instruments, complex operation process, and highly trained personnel. In this study, we proposed a “turn-on” colorimetric sensing strategy for the detection of IQ based on the analyte-triggered enhancement of oxidase-like activity of Ce-UiO-66 nanozyme. Ce-UiO-66 was synthesized using a simple solvothermal method via the self-assembly of terephthalic acid and Ce 4+ ions. The resulting Ce-UiO-66 exhibited excellent oxidase-like activity, catalyzing the oxidation of 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) via the generation of superoxide anions from oxygen. In the presence of IQ, electrostatic interactions facilitated the rapid adsorption of IQ onto the negatively charged Ce-UiO-66 surface, reversing the surface charge to positive. This charge shift enhanced the affinity of Ce-UiO-66 for negatively charged ABTS, significantly accelerating its oxidation. Based on this principle, we established a “turn-on” colorimetric sensing strategy for the detection of IQ, achieving a detection limit of 5.41 μM. This Ce-UiO-66 nanozyme-based detection method demonstrated high selectivity and anti-interference performance and could efficiently distinguish its analog 2-amino-1-methyl-6-phenylimidazo[4,5- b ]pyridine (PhIP) in complex food matrices. Further experimental data illustrated that this strategy was successfully applied to the detection of IQ in roasted meat samples. This work might offer a simple, cost-effective, and robust approach for rapid screening of IQ in highly contaminated processed meats.
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Materials
·
2026
·Vol. 19
·期 19
·4155
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IF 3.7
Hong-Bo Wang,Miao Yu,Chong Ren,Muhaiminul Islam Shakil,Chen Chen,Liang Zhou,Da-Yan Ma,Wei Wang
Conventional superhydrophobic coatings on aluminum alloys are frequently limited by inadequate coating–substrate adhesion, poor mechanical robustness, and the vulnerability of their surface micro/nanostructures to mechanical damage. To address these challenges, a hydroxyl-rich anodic oxide interlayer was formed via hard anodization followed by a hydroxylation treatment, thereby enhancing interfacial bonding and providing abundant active anchoring sites for coating deposition. Using this interface-engineering strategy, a mechanically durable superhydrophobic F-SiO2@polyurethane (PU) composite coating with hierarchical micro/nanostructures was successfully fabricated on aluminum alloy substrates through a facile spray-coating process. The anodized substrate provides abundant hydroxyl groups and interfacial anchoring sites, while the PU matrix enhances structural integrity and facilitates particle fixation. Incorporating fluorinated SiO2nanoparticles produced a hierarchical micro/nanostructure with low surface energy. After 10,000 cm of abrasion and 200 tape-peeling cycles, the coating maintained contact angles above 150°. The coating maintained superior corrosion resistance during prolonged immersion in acidic, alkaline, and saline environments. The improved durability and corrosion resistance originate from the synergistic effects of strong interfacial bonding, polymer barrier protection, and the fluorinated hierarchical structure. This study offers a promising strategy for developing durable superhydrophobic coatings for long-term protection of aluminum alloys.
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ACS Sensors
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2025
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IF 9.1
Zhihua Zhao,Shuhan Chen,Huiqin Li,Lan Wu,Zhigang Shao,Qilin Zou,Zhikun Wang
Triethylamine (TEA) is a colorless organic liquid known for its high volatility that poses significant irritation to the human respiratory tract; meanwhile, TEA can be released from decaying fish, which can be monitored by a gas sensor. However, conventional TEA gas sensors typically require high operating temperatures, leading to a substantial energy consumption. To address food safety concerns and promote environmental sustainability, the advancement of a TEA sensor that works at room temperature is urgently needed. In our work, an FeWO4/f-MWCNTs-3 chemoresistive gas sensor was fabricated by the hydrothermal method, integrating FeWO4 with multiwalled carbon nanotubes treated with mixed acids (f-MWCNTs). The sensor demonstrates superior performance, owing to its elevated specific surface area, total pore volume, and synergistic effect of p–p heterojunctions. FeWO4/f-MWCNTs-3 demonstrates excellent reproducibility, moisture resistance, stability, a minimal detection threshold of 1 ppm, and relatively rapid response/recovery times of 15/63 s. It attains a 113% response at 100 ppm of TEA at 25 °C. The applicability of FeWO4/f-MWCNTs-3 for assessing fish freshness via TEA concentration analysis from pomfret fish stored at ambient temperature for 14 days was validated, indicating its significance in fish freshness detection methodologies. Additionally, the gas-sensing mechanism of this sensor was further explored using density functional theory (DFT).
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PubMed
高影响因子
NEUROCHEMICAL RESEARCH
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2026
·Vol. 51
·期 2
·80
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IF 4.5
Lu Xuefei,Xu Kai,Zhou Zhenyu,Ding Gaonan,Zhang Yuan,Liang Yongwen,Zhou Jiahui,Jia Minglu,Zhang Yitang,Shen Li,Li Hualing
Alzheimer’s disease (AD) is a progressive neurodegenerative disease for which no effective clinical therapies currently exist. The neuroprotective potential of Chaetoglobosin F (CF), a fungal secondary metabolite, was investigated in this study using a Caenorhabditis elegans ( C. elegans ) model of AD that are transgenic nematodes expressing amyloid-beta (Aβ). Key parameters evaluated included paralysis rate, lifespan, motor and cognitive functions, Aβ plaque aggregation, intracellular reactive oxygen species (ROS), and autophagosome formation. The transcriptional levels of genes were examined by real time PCR. Results showed that treatment with CF significantly delayed paralysis, extended lifespan, and ameliorated Aβ-induced deficits in locomotion and chemotaxis. CF markedly reduced Aβ plaque accumulation, suppressed intracellular ROS levels, and promoted autophagosome formation. Furthermore, CF had potent inhibitory effects on acetylcholinesterase (AChE) activity. These beneficial effects were correlated with the upregulation of crucial genes, including daf-16 , skn-1 , pmk-1 , mtl-1 , unc-51 , bec-1 , lgg-1 , sod-1 and sod-3 , which confirmed the improving antioxidant defenses and autophagy. Our findings demonstrate that CF confers strong neuroprotection against Aβ-induced toxicity in C. elegans by co-regulating oxidative stress and autophagy through the Insulin/IGF-1 (IIS) and p38 MAPK signaling pathways. These results suggest that CF is a promising natural compound for further investigation as a potential therapeutic agent for AD. Graphical
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高影响因子
FOOD RESEARCH INTERNATIONAL
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2026
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IF 8.8
Silei Zhang,Qingbo Huang,Xiangmin Kuang,Chaofan Guo,Yongli Jiang,Fujie Zhang,Daihong Pan,Ming Du,Sakamon Devahastin,Junjie Yi
Blanching is widely applied as a pretreatment for drying star anise, yet how different pretreatment routes regulate enzyme activity, tissue structure, and final quality remains insufficiently clarified. Here, hot-water blanching (HB), alkaline blanching (AB), radio-frequency treatment (RF), high pressure processing (HPP), and alkaline-assisted HPP (AHPP) were comparatively evaluated, with freezing incorporated as a non-thermal pretreatment option. Drying behavior, water-state redistribution, color development, enzyme activities, bioactive compounds, and aroma-related attributes were assessed to elucidate structure-function relationships. Freezing-assisted pretreatments provided the most consistent improvement in dehydration, reducing the overall drying time from ∼19 h (untreated) to 13–15 h and markedly decreasing residual bound/immobilized water after drying. AHPP resulted in the highest essential oil yield (1.92-fold), while freezing combined with HPP produced the highest redness parameter ( a ⁎ = 14.96), closer to market-typical coloration. Although HB fully inactivated PPO and POD, it led to substantial color deterioration. Total phenolic and flavonoid contents decreased significantly after AHPP ( p < 0.05 ), likely due to enhanced diffusion/leaching losses. Overall, the results indicate that pretreatments modulate enzyme activities and quality primarily through controlled structural alteration, and freezing-assisted strategies offer a practical route to improve drying efficiency while tuning key quality attributes of dried star anise.
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高影响因子
JOURNAL OF CATALYSIS
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2020
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IF 7.888
Lei Lei,Danlian Huang,Chen Zhang,Rui Deng,Sha Chen,Zhihao Li
As a member of the transition metal sulfide family, cobalt sulfides (CoS x ) are considered as highly-activity, cost-effectively, as well as stable electrocatalysts with huge potential for the application of water splitting. Combining experiments and theoretical calculations, we demonstrated that F dopants could activate the Co and S sites of CoS 2 in CoS 2 @NF composites prepared via one-step hydrothermal method and contribute to enhance the intrinsic electrical conductivity, achieving a significantly improved activity of water splitting. The improved surface wettability in F-doped CoS 2 @NF composites ensures rapid electrolyte penetration and accelerates migration of hydroxyl as well as oxygen release. Furthermore, the F-doped CoS 2 @NF composites exhibit remarkable electrocatalytic activity and excellent long-term operational stability for overall water splitting in alkaline and neutral media. Predominantly, our work could be explored to enhance and understand the catalytic properties of other transition metal sulfides, and be also expected for further progress achieved with other nonmetal element dopants.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2019
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IF 6.361
Fengyi Wang,Daheng Wang,Zhiguang Guo
Functional superamphiphobic coatings have garnered massive concern due to their promising application in oil transportation and anti-contamination, which call for the requirements of mechanical stability and flame retardancy. Herein, a novel superamphiphobic PVT/F-APP-TiO 2 hybrid coating with excellent mechanical stability and flame retardancy was fabricated using fluorinated PVT polymer adhesive and highly fluorinated ammonium polyphosphate/TiO 2 (F-APP-TiO 2 ) particles with hierarchical core-shell structure. The synthetic mechanism, surface structure, chemical composition of the F-APP-TiO 2 particles were investigated by Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS), respectively. The PVT/F-APP-TiO 2 coatings exhibited excellent superamphiphobicity, anticontamination and self-cleaning property. Good mechanical stability of PVT/F-APP-TiO 2 coatings was verified by mechical damage tests including sand paper abrasion, tape-peeling and water-impacting tests. Further, the PVT/F-APP-TiO 2 coatings showed excellent flame retardancy and self-recovery ability. The PVT/F-APP-TiO 2 coatings with versatile abilities exhibited promising potential to achieve numerous applications in water-oil proof, fireproof and oil transportation materials.
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高影响因子
INORGANIC CHEMISTRY
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2023
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IF 4.6
Tuohetijiang Baiheti,Abudukadi Tudi,Minqiang Gai,Xuping Wang,Shujuan Han
Fluorooxoborates are promising yet largely untapped crystal materials for linear and nonlinear optical applications. The introduction of a strong electronegative F atom into an oxyboron anionic group offers a virtually unlimited chance for structural engineering and ultimately purposeful tuning of the macroscopic optical properties of the crystal. Herein, a new mixed alkali/alkaline-earth fluorooxoborate, Na2BaB12O18F4, was synthesized in a closed system. Na2BaB12O18F4 features a [B6O11F2] fundamental building unit (FBB), which polymerizes into two new (first example) independent interpenetrating three-dimensional (3D) B–O/F anionic networks constructed entirely from BO3 and BO3F units. Based on optical characterizations and the first-principles calculations, Na2BaB12O18F4 exhibits a moderate birefringence (0.054 @ 1064 nm) and a short ultraviolet (UV) cutoff edge (below 190 nm). The successful synthesis and characterization of Na2BaB12O18F4 may speed up the subsequent discovery of other mixed alkali/alkaline-earth metal fluorooxoborates.
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高影响因子
RSC Advances
·
2014
·Vol. 4
·期 63
·33466-33473
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IF 3.708
Qing Wang,Zhi Min Wu,Yongfei Li,Ying Tan,Ning Liu,Yuejin Liu
The efficient hydroxyalkylation of phenol with formaldehyde to bisphenol F over a thermoregulated phase-separable reaction system containing a water-soluble Brønsted acidic ionic liquid was studied. The reaction system containing the water-soluble IL showed thermoregulated biphasic behavior with change of the alkyl chain length of IL, temperature and water amount. Four types of imidazolium-, ammonium-, phosphonium- and pyridinium-based water-soluble ionic liquids with different anions of dihydrogen phosphate [H2PO4]−, acetate [CH3COO]− and hydrogen sulfate [HSO4]− were used as both Brønsted acidic catalysts and thermoregulated solvents. Among them, [C6MIM][HSO4] gave a high yield of 80.5% and a selectivity of 96.9% for bisphenol F, and the optimal reaction conditions were stirring speed 450 rpm, phenol–formaldehyde ratio 6 : 1, IL catalyst molar concentration 12.5%, reaction temperature 90 °C and reaction time 1 h. [C6MIM][HSO4] could be recovered by simple decantation and could retain its original activity even after six recycling-uses [CnMIM][HSO4] with the alkyl chain length n = 6 found to be the most suitable for the synthesis of bisphenol F because of both the formation of a thermoregulated monophasic reaction system at 90 °C to enhance the reaction efficiency and as a thermoregulated phase-transition solvent to facilitate its recovery from the reaction system.
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JOURNAL OF FOOD SCIENCE
·
2025
·Vol. 90
·期 2
·e17660
·
IF 3.4
Junyi Wang,Ruifang Wang,Yan Gao,Jing Wang,Lina Qiao,Huijuan Li,Guohua Zhao,Ning Zhang,Hitao Chen,Jie Sun,Shuqi Wang
Qingke ( Hordeum vulgare L. var. nudum Hook. f.) is a cereal of Gramineae, and it is an indispensable food crop for people in the Qinghai—Tibetan Plateau of China. This work focused on the dynamic changes of volatile and non-volatile fractions of qingke (Heilaoya), that is, black qingke, during steaming, and the flavor variations were discussed combined with their correlation. According to the results of sensory analysis, it revealed that the rice and sweet aroma of black qingke increased with the extension of steaming time and reached the maximum at 60 min, whereas the grassy aroma decreased. Besides, a total of 43 aroma fractions were identified by gas chromatography–olfactometry–mass spectrometry, with the largest quantity showing up at 60 min. In addition, the overall flavor of black qingke became more abundant after steaming for 40–60 min. Furthermore, combined with the changes of the non-volatile substances, it was inferred that Maillard and Strecker reactions occurred between reducing sugars and amino acids, and the fractions, such as 2-acetylthiazole, 2-methylpyrazine, 2-pentylfuran, and furfural, were generated. These components mainly presented notes of baked, rice, and grain. In addition, the fatty acids undergo oxidative degradation to generate hexanal and ( E,E )-2,4-decadienal. These results can provide a theoretical basis for the flavor quality control and industrial production of qingke.
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高影响因子
Journal of Materials Chemistry A
·
2024
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IF 10.7
Miao Wang,Yijin He,Xiaoyu Yang,Xuhui Hou,Wenxuan Li,Shaobo Tan,Zhicheng Zhang
With the increasing demand for dielectric materials in high-frequency microwave applications, fluoropolymer-based dielectric materials have been widely utilized due to their excellent dielectric and insulation properties. However, the low thermal conductivity limits their ability to meet the thermal dissipation requirements during high-frequency and high-speed signal transmission. The present study introduces a pioneering interface engineering strategy wherein C–F bonds on the surface of ethylene-tetrafluoroethylene copolymer (ETFE) are photo-catalytically activated, enabling successful grafting of poly(glycidyl methacrylate) (PGMA) chain segments. Subsequently, the resulting graft copolymers are blended with thermally conductive h-BN filler to prepare composite dielectric materials. The results demonstrate that the incorporation of PGMA segments significantly enhances the interfacial compatibility between the ETFE matrix and h-BN filler, resulting in composites with a dense microstructure and outstanding dielectric and thermal properties. At a filler content of 30 vol%, the ETFE-g-PGMA@BN composite achieves an in-plane thermal conductivity of 4.2 W (m K)−1 and a through-plane thermal conductivity of 0.77 W (m K)−1. Moreover, at 1 GHz, the composite exhibits a dielectric constant of 2.2 and a dielectric loss of 0.004. This work presents a novel interface design strategy for surface modification of PTFE-based fluoropolymers, expanding their potential applications in printed circuit boards (PCBs) and providing a new direction for the design of polymer-based dielectric materials.
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危险品化学品经营许可证（带存储）