CyTA-Journal of Food
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2025
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IF 1.7
Han Zhao,Xiaohui Duan,Siqi Xie,Lili Cheng,Fei Wang,Wenjuan Xu,Yaolei Zhang,Weiyi Zhang,Cheng Zhao
Listeria monocytogenes is a foodborne pathogenic bacterium that can survive under a wide range of temperature and pH conditions, with a mortality rate of up to 20% −30%. One emerging and validated method of indirectly assessing Listeria monocytogenes in food is detecting 3-hydroxy-2-butanone gas. In this study, WO3 nanoflowers (a diameter of 2.8 µm) and two different hierarchical structures of WO3 were successfully synthesized. XRD, BET, SEM, and TEM were applied to characterize their morphology, microstructure, catalytic structure, and specific surface area. For assessing their gas sensing performances toward 3-hydroxy-2-butanone, a series of gas sensitivity indicators were purposefully measured. The results indicated that WO3 nanoflowers had the best gas sensing performance including high sensitivity (81 @ 20 ppm), rapid response-recovery time (4 s/9 s), low LOD (1 ppm) and good stability. Moreover, by analysing the various characterization results of these materials, the sensitivity mechanism was explained in detail as well.
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高影响因子
DALTON TRANSACTIONS
·
2024
·Vol. 53
·期 38
·16054-16065
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IF 3.5
Jian Guo,Ming-Yuan Yan,Hao-Ran Yu,Ji Zhang,Guoliang Yuan,Shan-Tao Zhang
Piezoelectric ceramics with high electrical performances and high Curie temperature (Tc) act as key materials for numerous electromechanical devices such as transducers and actuators. Herein, we report a systematic investigation on the crystal structure, microstructure and electrical properties of Sr and La co-doped Pb(Mg1/3Nb2/3)O3–PbZrO3–PbTiO3 ceramics with a low Pb(Mg1/3Nb2/3)O3 content, namely, (Pb1−ySry)(Mg1/3Nb2/3)0.07ZrxTi0.93−xO3:zLa. With an increase in the Zr content (x value) from 0.49 to 0.53, its crystal structure evolved from a tetragonal phase to a rhombohedral phase, leading to not only a morphotropic phase boundary (MPB) at around x = 0.51 but also a monotonously decreasing Tc. Meanwhile, a change in either the Sr- or La-doping content (y and z values, respectively) in the range of y = 0.03–0.07 and z = 0.01–0.03 can slightly deviate the structure of MPB, resulting in a significant effect on its electrical properties. As the best results, the optimal composition of x = 0.51, y = 0.05, and z = 0.02 yielded peak electrical performance, with a related room temperature piezoelectric coefficient (d33) of 645 pC N−1, remanent polarization (Pr) of 33.5 μC cm−2, coercive field (Ec) of 8.6 kV cm−1, and Tc of 242 °C. Especially, its piezoelectric properties showed excellent temperature stability, and its d33 value decreased by only 3% from room temperature to 150 °C. This work not only provides an alternative piezoelectric ceramic with outstanding electrical performance for industrial applications, but also reveals a comprehensive perspective on the composition–structure–property relationship of doped Pb[(Mg1/3Nb2/3),Zr,Ti]O3, which is helpful for further work on piezoelectric ceramics.
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高影响因子
ELECTROCHIMICA ACTA
·
2024
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IF 5.5
Shaoxiong Liu,Jing Dai,Xuexue Li,Jianjun Xia,Mingyang Xie,Zhifeng Huang,Li Liu
Mn 0.5 Ti 2 (PO 4 ) 3 with a NASICON structural is used as an anode material in potassium-ion batteries due to its abundance of vacancies that can hold potassium ions . This characteristic not only contributes to its excellent stability but also results in a high specific capacity. However, the poor electrical conductivity of the polyanionic type structure limits the material's ability to fully utilize its capacity. In this paper, the conductivity and electrochemical stability of the Mn 0.5 Ti 2 (PO 4 ) 3 anode material are enhanced through composite formation with an F-doped carbon layer. The introduction of F into the carbon matrix creates a large number of vacancy defects and F active sites. The vacancies enhance the transport of potassium ions on the Mn 0.5 Ti 2 (PO 4 ) 3 material's surface, while the active sites exhibit strong electronegativity , improving the absorption of potassium ions. Therefore, the diffusion impedance of potassium ions is significantly reduced, leading to an increased diffusion rate of potassium ions. Attributing to the improved reaction kinetics, the Mn 0.5 Ti 2 (PO 4 ) 3 @F-doped carbon composite demonstrates a high specific capacity of 86 mA h g −1 at 10,000 mA g −1 when used as the anode for potassium-ion batteries. Even more, the specific capacity remains a capacity of 136 mA g −1 after 3000 cycles at 1000 mA h g −1 . This study enhances our comprehension of material design by investigating the alteration of carbon matrix to promote the electrochemical characteristics of materials.
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Small
·
2025
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IF 12.1
Shufang Zhou,Jintong Xu,Jiayi Wang,Nurimangul Muntiza,Qiliang Deng
The reversible photo-transformation metal–organic framework (MOF) capable of changing properties by surface chemical modification has huge potential in various industrial fields. However, such material is still rare. Herein, a crystalline 3D MOF constructed by 5-boronobenzene-1, 3-dicarboxylic acid, and zinc sulfate (Zn-BBDA) is reported, where the boronic groups are spontaneously change into the hydroxyl groups during the preparation process. The resulted MOF possesses the orderly distributed hydroxyl groups in interlayers. The photo-responsive properties of the resulted MOF are explored. The results indicate that the appearance color and fluorescence emission of the resulted Zn-BBDA can be simultaneously adjusted based on the oxidation-reduction reaction of the hydroxyl group. The transformation degree of the MOF can be quantitatively monitored by fluorescence emission or Red, Green, Blue (RGB) readout. The response mechanism of the resulted Zn-BBDA is revealed. The surface properties of the resulted Zn-BBDA before and after irradiation are also investigated. The present material exhibits a bright future in the field of anti-counterfeiting and antibacterial treatment. The research provides new views in exploring novel photo-response materials.
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高影响因子
NEW JOURNAL OF CHEMISTRY
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2024
·Vol. 48
·期 27
·12387-12398
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IF 2.7
Yafeng Jin,Fangming Han,Tao Wang,Haofu Shi,Xiaobo Li,Li Yang,Na Chen,Kaifeng Yang,Xinyue Song,Guangri Xu
Developing a facile and effective assay method is crucial due to the potential harm of metronidazole (MNZ) antibiotics to both human health and the environment. Herein, snowflake-shaped poly(3-thiophenemalonic acid, 3-TPA) combined with a carbonized core–shell-type ZIF-8@ZIF-67 (C-ZIF-8@ZIF-67) hollow polyhedra modified glassy carbon electrode (GCE), denoted as C-ZIF-8@ZIF-67/P3TPA/GCE, was fabricated by electropolymerization followed by the electrodeposition strategy. The resulting sensor demonstrates a significant electrocatalysis effect for the reduction reaction of MNZ, exhibiting a broad linear range (0.1–20, 20–800 μM) with a low limit of detection (LOD, 3S/N) of 0.024 μM. Furthermore, it has been successfully applied to determine MNZ in tablets and lake water. A synergistic effect between P3TPA and C-ZIF-8@ZIF-67 is elucidated through density functional theory (DFT) calculations. Consequently, this research introduces a sensitive and effective method for monitoring MNZ in real samples.
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CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Kunqi Liu,Junxia Wang,Jin Wang,Die Liu,Youqin Huang,Zhenjin Fu,Xi Zhang
In this study, the novelly designed Sr 0.5 Zr 2 (PO 4 ) 3 –Ce 0.5 Sm 0.5 PO 4 composite ceramics were utilized as nuclear waste form to simultaneously immobilize simulated fission products Sr and actinide nuclides. The phase transition mechanism, thermokinetics and densification behavior of Sr 0.5 Zr 2 (PO 4 ) 3 –Ce 0.5 Sm 0.5 PO 4 composite ceramics based on in-situ synthesis were systemically analyzed by XRD, in-situ XPS, TG-DSC, SEM and density measurements. The results demonstrate that the formation of Ce 0.5 Sm 0.5 PO 4 solid solution phase preceded that of Sr 0.5 Zr 2 (PO 4 ) 3 phase, of which there is a valence change of Ce from Ce 4+ to Ce 3+ before 1023 K. Additionally, as for the exothermic crystallization enthalpy, change of exothermic crystallization enthalpy and activation energy, the values of Sr 0.5 Zr 2 (PO 4 ) 3 and Ce 0.5 Sm 0.5 PO 4 phases in composite ceramics are 286.17 – 515.61 mJ, 19.11 – 35.38 J/g, 702.45 kJ/mol and 145.21 – 232.44 mJ, 9.26 – 15.44 J/g, 450.04 kJ/mol, respectively. It is then indicated that the formation of Ce 0.5 Sm 0.5 PO 4 phase is definitely more favorable than that of Sr 0.5 Zr 2 (PO 4 ) 3 phase. Simultaneously, the relative densities of Sr 0.5 Zr 2 (PO 4 ) 3 –Ce 0.5 Sm 0.5 PO 4 composite ceramics are more than 95 % when the sintering temperature exceeds 1273 K.
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IMMUNOLOGIC RESEARCH
·
2024
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IF 3.3
Su Xiaoran,Wang Xinliu,Zhang Xin,Sun Yajie,Jia Yugai
Massive evidence shows that intestinal tryptophan metabolites affected by intestinal flora can modulate the progression of rheumatoid arthritis (RA). However, the effects and mechanisms of intestinal tryptophan metabolites on RA are not yet detailed. Herein, we investigated the protective effects of intestinal tryptophan metabolites on RA and its detailed mechanisms. In this study, the collagen-induced arthritis (CIA) rat model was established. Based on metabolomics analysis, the contents of β-indole-3-acetic acid (IAA), indolylpropionic acid, and indole-3-β-acrylic acid in the sera of CIA rats were significantly less compared with those of the normal rats. Under the condition of Treg or Th17 cell differentiation, IAA significantly promoted the differentiation and activation of Treg cells instead of Th17 cells. Intestinal tryptophan metabolites are well-known endogenic ligands of aryl hydrocarbon receptor (AhR). Not surprisingly, IAA increased the level of Foxp3 through activating the AhR pathway. Interestingly, IAA had little impact on the level of Foxp3 mRNA, but reducing the ubiquitination and degradation of Foxp3. Mechanically, IAA reduced the expression of the transcriptional coactivator TAZ, which was almost completely reversed by either AhR antagonist CH223191 or siRNA. In vitro, IAA decreased the combination of TAZ and the histone acetyltransferase Tip60, while it increased the combination of Tip60 and Foxp3. In CIA rats, oral administration of IAA increased the number of Treg cells and relieved the inflammation. A combined use with CH223191 almost abolished the effect of IAA. Taken together, IAA attenuated CIA by promoting the differentiation of Treg cells through reducing the ubiquitination of Foxp3 via the AhR-TAZ-Tip60 pathway.
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Journal of Energy Storage
·
2024
·
IF 8.9
Haoyu Deng,Xueting Yang,Hanghang Chen,Dezhan Ye,Xiancai Jiang,Yazhou Chen,Chenyi Wang
The in-situ polymerization of 1,3-dioxolane (PDOL) in battery cells has attracted extensive attention, however, the differences of Lewis acid initiators on the DOL monomer conversion (C%) and electrochemical properties has been ignored. Here, it is demonstrated that compare with Sn(OTf) 2 Lewis acid initiator, the gelation of DOL is achieved at the lower addition of In(OTf) 3 . By optimizing their content in the gelation process, their C% are comparable which are 95.7 % and 93.5 % for In(OTf) 3 and Sn(OTf) 2 , respectively. However, the higher ionic conductivity (7.1 × 10 −4 S cm −1 at room temperature), electrochemical window (~4.5 V) and Li + transference number (0.42) are obtained for DOL initiated with In(OTf) 3 , due to its lower molecular weight which is helpful to the intermolecular Li + transport along PDOL main chain; In addition, the Li/Li symmetrical cell of In(OTf) 3 can be stably cycled for >500 h at 3 mA cm −2 , with an over-potential of 178mv. The storage and cycling impedances of half cells further proves the stable interface of In(OTf) 3 initiated DOL toward to lithium metal in comparison with those of Sn(OTf) 2 . Scanning electron microscopy results show a denser and thinner interface in the DOL catalyzed by In(OTf) 3 . Finally, the assembled Li/LiFePO 4 battery delivers specific discharge capacity and capacity retention rates of 115.5mAh g −1 and 85 %, respectively after 300 cycles at 1C. Through the initiator selection, the DOL synthesis and electrochemical properties can be tuned, which further broadens the design idea of PDOL based solid polymer electrolyte.
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Nanoscale
·
2025
·
IF 5.1
Rong Wu,Yansong Yue,Aosheng Zhang,Jing Wei,Fangze Liu,Hongbo Li
Metal halide perovskites are promising materials for next-generation X-ray detectors. Among these materials, CsPbBr3 single crystals (SCs) exhibit high environmental stability, low defect density and high X-ray absorption coefficient, demonstrating excellent X-ray detection performance. However, ion migration in CsPbBr3 induces dark current drift, leading to degraded photocurrent and increased detection limit. Doping CsPbBr3 SCs with mixed halide has emerged as an effective strategy to suppress ion migration, increase resistivity and improve detection sensitivity. In this study, we synthesized lightly doped mixed-halide perovskite CsPb(Br1−nXn)3 (X = Cl, I) SCs with high crystallinity and compositional uniformity using the inverse temperature crystallization method and systematically studied hole and electron transport properties. Our findings indicate that the dark current primarily arises from hole current driven by ion migration associated with halide vacancies. Both chlorine and iodine doping suppress ion migration, with iodine doping exhibiting the best inhibiting effect. With low work function contacts, electron dark current is substantially reduced due to the elimination of hole contributions, and the dark current drift is effectively suppressed. Electron transport dynamics were further explored through α-particle spectroscopy. Analysis of α-particle spectra and carrier transit times revealed that chlorine doping enhances the μ-τ product and charge collection efficiency, whereas light iodine doping results in reduced μ-τ product and slower charge transport. Overall, halide doping combined with contact engineering demonstrates that mixed-halide perovskites hold significant promise for developing high-performance X-ray detectors.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
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IF 8.5
Yongfang Sun,Jinmei Xie,Canzheng Wang,Shaoxue Qin,Kun Ren,Dongmei Wang,Yingni Pan,Shumeng Ren,Xiaoqiu Liu
Curcumae wenyujin Rhizoma (CWR) is extensively implemented in clinical practice for treating primary dysmenorrhea (PD) resulting from qi stagnation and blood stasis. However, the development of CWR-derived polysaccharides remains poorly investigated. In this study, the polysaccharide CWP-3 was isolated from CWR, and structurally characterized through FT-IR, HPLC, GC–MS, and NMR, which identified it as an RG-I-type pectin polysaccharide with a molecular weight of 423.6 kDa. CWP-3 consists of the monosaccharides Rha, GalA, Gal, and Ara (25.7: 28.6:42.8:2.9). The main backbone consisted of alternating 1,2-linked Rha p and 1,4-linked GalA p residues, with Gal and Ara forming the side chains, respectively. SEM revealed a porous, sheet-like morphology, while Congo Red staining and AFM analyses confirmed a triple helix structure with a height of 3.37 nm, and TG-DSC analysis indicated good thermal stability. In a mouse model of PD, 160 mg/kg CWP-3 reduced writhing by 70.3 %, prolonged coagulation time by 37.5 %, restored uterine and hepatic indices, and decreased AST, ALT, D2D, TXB2, IL-6, IL-1β, and TNF-α, while normalizing PGF₂α/PGE₂ levels. These results indicate that CWP-3 exerts blood-activating and analgesic effects through cytokine-mediated COX-2 suppression, suggesting its potential as a therapeutic candidate for PD with qi stagnation and blood stasis.
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JOURNAL OF ETHNOPHARMACOLOGY
·
2025
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IF 5.4
Jianchao Li,Yuanjing Ma,Nuo Deng,Fei Wang,Yi Tao,Huilin Zhu,Weichen Xu,Jinjun Shan,Yongming Li,Xiao Wu
Ethnopharmacological relevance Realgar is a traditional Chinese medicine rich in arsenic, and long-term use may lead to arsenic poisoning. The toxicity of realgar has primarily focused on the liver and kidney, with limited studies on its intestinal toxicity. Niuhuang Jiedu Tablet (NHJDT) is a renowned realgar-containing formula for clearing heat and detoxifying. NHJDT compatibility significantly reduces the toxicity of realgar, but the detoxification effects and underlying mechanisms in reducing realgar-induced intestinal toxicity remain unclear. Aim of the study The study aims to investigate the detoxification mechanism of NHJDT's compatibility in reducing the intestinal toxicity of realgar. Materials and methods To evaluate the intestinal detoxification efficacy of NHJDT, mice were orally administered 0.5 % CMC-Na, realgar (0.5 and 1.0 g/kg) or NHJDT (3.9 and 7.8 g/kg) for 14 days. The intestinal detoxification effects of NHJDT were evaluated by toxic symptoms and intestinal barrier function. Changes of body weight, colon length, histopathological damage, tight junction and MUC2 proteins, and goblet cells were determined. The inflammatory factors and DAO were detected by ELISA. Further investigations including 16S rRNA sequencing, untargeted metabolomics, targeted short-chain fatty acid metabolomics and molecular docking assays were performed to explore the underlying detoxification mechanisms of NHJDT. Additionally, targeted microbiota and its derived metabolite gavage were conducted in mice to verify the detoxification effects. Results NHJDT's compatibility significantly mitigated realgar-induced intestinal toxicity and gut barrier damage. It restored gut microbiota homeostasis by modulating the abundance of Akkermansia and concurrently enhanced the transformation from tryptophan to indole-3- lactate (ILA). The supplementation with Akkermansia muciniphila ( A. muciniphila ) and its derived ILA activated the aryl hydrocarbon receptor (AhR) in mice, thereby ameliorating realgar-induced intestinal damage. Conclusion NHJDT's compatibility alleviated realgar-induced intestinal toxicity by activating the AhR pathway via A. muciniphila and ILA. This study elucidates the detoxification mechanism of NHJDT's compatibility and offers novel insights for the clinical treatment of arsenic poisoning.
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ACS Applied Polymer Materials
·
2025
·
IF 4.7
Yunhui Xia,Ruixuan Zheng,Bo Wang,Zheng Li,Guohui Cai,Mengjia Zhang,Jianghui Lin,Ling Li
The one-pot synthesis of 3-aryl-2-oxazolidinone from carbon dioxide (CO2), epoxides, and aniline represents a promising strategy for CO2 utilization. However, the efficiency remains far from adequate for industrial deployment, primarily due to the absence of purpose-designed catalysts. Herein, a dual-anion-rich (Br– and OAc–) polymeric ionic liquid (P-TBTOD-1/1/2) was synthesized via copolymerization of vinyl-functionalized ionic liquids (ILs), 1,1,3,3-tetramethylguanidine bromide ([AlTMG]Br), and 1,1,3,3-tetramethylguanidine acetate ([AlTMG]OAc), with divinylbenzene (DVB). The catalytic performance was evaluated for the synthesis of 3-phenyl-2-oxazolidinone from CO2, ethylene oxide (EO), and aniline in a batch autoclave at 2.5 MPa and 110 °C with a catalyst dosage of 4 wt % (based on aniline) for 1.0 h. The aniline conversion was 100%, and the yield of 3-phenyl-2-oxazolidinone was 75%. While Br– could effectively promote the cyclization reaction between CO2 and EO to form ethylene carbonate (EC), its catalytic efficiency in the subsequent conversion of 2-(phenylamino)ethanol and EC to 3-phenyl-2-oxazolidinone was limited. In contrast, OAc– exhibited significantly superior catalytic performance in this reaction. OAc– effectively activated aniline and EO to generate 2-(phenylamino)ethanol. The accumulation of 2-(phenylamino)ethanol and EC in the reaction system synergistically drove the equilibrium toward product formation, thereby significantly enhancing the overall yield of 3-phenyl-2-oxazolidinone. Additionally, P-TBTOD-1/1/2 exhibited outstanding stability, maintaining the yield of 3-phenyl-2-oxazolidinone almost unchanged after five consecutive runs. These findings indicate that P-TBTOD-1/1/2 is a promising candidate catalyst for CO2 utilization.
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危险品化学品经营许可证（带存储）