Science China-Chemistry
·
2025
·
IF 9.7
Li Ran,Yin Hang,Jing Wen-Kai,Cheng Jia-Lin,Qin Xue-Rong,Lu Tong-Bu,Wang Hong-Juan,Yu Zi-You
As important catalysts for C–C coupling, copper-based materials have great potential for electrocatalytic reduction of CO 2 to C 2+ products. In this work, Cu 2 O catalysts modified with different lanthanide hydroxides were successfully synthesized and used for CO 2 electroreduction. The results showed that compared with Cu 2 O/Gd(OH) 3 and Cu 2 O/Yb(OH) 3 catalysts, Cu 2 O/La(OH) 3 exhibited the highest electrocatalytic performance for CO 2 reduction. This catalyst was able to maintain a high Faraday efficiency for C 2+ products ( \({\rm FE}_{{\rm C}_{2+}}\) ) of about 60% within the current density range of 400–800 mA cm −2 . The highest \({\rm FE}_{{\rm C}_{2+}}\) reached 66% at 600 mA cm −2 and the partial current density for C 2+ products reached a maximum of 488 mA cm −2 . Meanwhile, the catalyst could run stably for 40 h with a remained \({\rm FE}_{{\rm C}_{2+}}\) of about 60%. Multiple characterizations reveal that the introduction of La(OH) 3 promotes the formation of *CO intermediates, and also helps to stabilize the Cu(I) species in Cu 2 O under cathodic potentials, thus facilitating the C–C coupling for C 2+ production. This work provides a new strategy to enhance the C 2+ production via stabilizing Cu(I).
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JOURNAL OF MATERIALS SCIENCE
·
2025
·Vol. 60
·期 47
·24439-24453
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IF 3.9
Wang Yabo,Duan Xiaohui,Wei Yiguo,Du Gangfeng,Tian Zhengshan,Bai Suzhen,Pan Zihong,Bai Ruibing
An efficient Ag 2 WO 4 /BiFeO 3 heterojunction was successfully synthesized using a facile hydrothermal and in situ precipitation method. A comprehensive investigation was conducted into the morphological, structural, and optical properties of the Ag 2 WO 4 /BiFeO 3 heterojunction. The optimally synthesized Ag 2 WO 4 /BiFeO 3 heterojunction demonstrated an impressive removal efficiency toward Lanasol Red 5B (95.62%) within 100 min under simulated solar irradiation, which was 5.18-fold higher than pristine BiFeO 3 . The engineered heterojunction effectively optimized the electron transfer pathway, significantly enhancing the separation efficiency of photogenerated electrons and holes. A notable selectivity of the Ag₂WO₄/BiFeO₃ heterostructure was observed in the photocatalytic degradation of organic dyes under simulated solar irradiation. The removal efficiencies followed the order: Lanasol Red 5B (95.62%) > Congo red (50.47%) > Methyl red (47.16%) > Safranin T (22.22%) > Rhodamine B (8.07%) > Methyl orange (3.04%). Furthermore, active species trapping experiments confirmed that holes and superoxide radicals were the predominant reactive species driving the photocatalytic process. This simple synthesis method opens up new possibilities for developing efficient BiFeO 3 -based photocatalysts for environmental remediation purposes.
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Journal of Analysis and Testing
·
2025
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IF 7
Chen Jiajing,Lin Juan,Ouyang Dan,Lin Zian
Metabolomics, based on laser desorption/ionization mass spectrometry (LDI-MS), has been successfully utilized for the high-throughput metabolic analysis of biofluids. This technique shows great promises as a powerful tool for disease screening. Although various nanomaterials have been developed as alternatives to traditional organic matrices in LDI-MS, the signals of most metabolites are limited due to their low abundance in complex biofluids. Herein, four hydroxyl-functionalized covalent organic frameworks (COFs) were designed as substrates for LDI-MS, named COF-OH- n ( n = 0–3, demonstrating the number of hydroxyl units). Since hydroxyl groups can facilitate proton transfer and promote the ionization process effectively, hydroxyl-rich COF-OH-2 enabled sensitive and efficient LDI-MS analysis of serum directly, resulting in highly reproducible serum metabolic profiles (SMPs). An orthogonal partial least squares discriminant analysis (OPLS-DA) model was successfully used to distinguish 30 gout patients from 38 healthy volunteers, with an area under the curve (AUC) of 0.974. Furthermore, the roles of 12 biomarker candidates, which were characterised following statistical analysis, in the metabolic pathway of gout were initially explored. Furthermore, the roles of 12 biomarker candidates, which were characterized following statistical analysis, in the metabolic pathway of gout were initially explored. This work demonstrates the potential of COF-OH-2-assisted LDI-MS in clinical metabolic analysis and offers a rational design strategy for advanced LDI-MS substrates.
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International Journal of Minerals Metallurgy and Materials
·
2025
·Vol. 32
·期 7
·1762-1770
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IF 7.2
Ma Qin,Shi Lin,Ran Baocheng,Ma Tianfeng,Wang Huan,Lu Yongchang
Up to now, “Turn-on” fluorescence sensor exhibits promising potential toward the detection of heavy metal ions, anions, drugs, organic dyes, DNA, pesticides, and other amino acids due to their simple, quick detection, and high sensitivity and selectivity. Herein, a novel fluorescence method of detecting Cr 3+ in an aqueous solution was described based on the fluorescence resonance energy transfer between rhodamine B (RhB) and gold nanoparticles (AuNPs). The fluorescence of RhB solution could be obviously quenched (“off” state) with the presence of citrate-stabilized AuNPs. However, upon addition of Cr 3+ to AuNPs@RhB system, the fluorescence of AuNPs was recovered owing to the strong interaction between Cr 3+ and the specific groups on the surface of citrate-stabilized AuNPs, which will lead to the aggregation of AuNPs (“on” state). At this point, the color of the reaction solution turned to black. Under optimal conditions, the limit of detection (LOD) for Cr 3+ was 0.95 nM (signal-to-noise ratio, S/N = 3) with a linear range of 0.164 nM to 3.270 µM. Furthermore, the proposed method exhibits excellent performances, such as rapid analysis, high sensitivity, extraordinary selectivity, easy preparation, switch-on fluorescence response, and non-time consuming.
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Food Production Processing and Nutrition
·
2025
·Vol. 7
·期 1
·1-15
·
IF 5.7
Cao Tianzhuo,Hai Xiaoya,Zhao Chenchen,Wang Mengjin,Tong Zihan,Cui Hao,Zhou An,Liu Juan,Yu Nianjun,Xing Lihua
Polygonatum cyrtonema Hua ( P. Hua) has been demonstrated with several biological potentials, such as lipid lowering and anti-inflammatory effects. To evaluate protective the effect of P. Hua aqueous extract (PCHE) on metabolic-associated fatty liver disease (MAFLD), PCHE was analyzed by UPLC-Q-TOF MS to characterize the chemical composition and pharmacodynamic experiments in vivo and in vitro were conducted using PCHE to intervene in MAFLD models. In vitro, a MAFLD cellular model was established by inducing HepG2 cells with free fatty acid (FFA). In vivo, a MAFLD murine model was generated via a high-fat/high-fructose (HFHF) diet in C57BL/6 J mice. The results showed that a total of 32 chemical compounds were detected in PCHE. In both HepG2 cells and HFHF-induced MAFLD mice, high-dose PCHE significantly improved lipid profiles, inhibited excessive hepatic lipid droplet accumulation, and up regulated the mRNA and protein expression of PPARα/CPT-1A/MCAD. In conclusion, PCHE exerted regulatory effects on MAFLD, possibly associated with the modulation of the PPARα/CPT-1A/MCAD signaling pathway. These results provided an vital basis for the development of functional food made up of P. Hua to prevent MAFLD. Graphical
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Journal of Coatings Technology and Research
·
2025
·
IF 2.8
Shang Fengju,Zhang Jiaqing,Wang Shuping,Cheng Yifeng,Shao Wenlong,Xiao Fei
Steel structures are widely used in the construction of buildings and bridges; however, their fire safety performance faces many challenges. In an effort to develop an environmentally benign intumescent coating for steel substrates, a combination of biomass-containing flame-retardant ingredients and epoxy binder was designed in this study. The effects of various combinations of fillers on the thermal stability and fire retardancy of the coatings were characterized using thermogravimetric analysis, butane torch burner, and cone calorimeter. The integration of humic acid (HA) and as-synthesized ionic liquid–polyoxometalate (IL-POM) hybrid endowed the char residues with improved resistance to oxidation and higher thermal stability, leading to the best fire-protective performance. Thanks to the combination effect of fillers, the backside temperature of the coating was nearly 80 °C lower than that of the coating (from 197 to 120 °C) without HA and IL-POM (C2 coating) after the burning test, and the corresponding char yield at 800 °C increased to 29.3% from 21.2% (thermogravimetric analysis), suggesting that the thermal stability and fire resistance were improved. Moreover, it achieved a lower peak heat release rate (− 83.8%), fire growth rate index (− 79.9%), and maximum average heat release rate (− 81.8%) in the cone calorimeter test as compared to C1 coating, accompanied by a more dense and cohesive surface residual char layer structure. The flame-retardant mechanism of the intumescent coating was systematically investigated via scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM/EDX), attenuated total reflectance-Fourier transform infrared (ATR-FTIR), Raman, and X-ray diffraction (XRD) analyses. In summary, this work provides a feasible and practical approach to resolve the problem of sustainability and efficiency of the intumescent coatings, showing potential applications in fire protection of steel structures.
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JOURNAL OF MATERIALS SCIENCE
·
2025
·
IF 3.9
Cheng Yaru,Zhang Lianchen,Zhai Runlong,Ma Jialong,Teng Feng,Jiao Yang
Photoelectrochemical photodetector as the hot research topic in photodetection filed has attached many attentions, and enhancing its performance through adjusting the barrier at interfaces is an effective route. In this study, an Ag film was prepared between the ITO conductive glass and ZnO nanoparticles by an electrochemical deposition method. Compared with the original ZnO electrode, the photocurrent of the Ag/ZnO electrode increases from 0.101 to 0.171 mA cm −2 , and the light response increases from 379.9 to 720.8 μA W −1 . The inserted Ag layer changed the contact mode from Schottky to Ohmic contact, reducing the potential barrier of electron transport to the substrate. At the same time, due to the reflection of light by Ag layer, the absorbance of ZnO is increased. This simple combination helps to improve the detection performance of ZnO electrode and shows that this method can be used to prepare high-performance PEC photodetectors.
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BioNanoScience
·
2025
·Vol. 15
·期 2
·1-12
·
IF 3.2
Liang Tisong,Jing Pu
The poor stability of chlorophyll has inhibited its application in food industry. Our previous study showed that the stability of chlorophyll can be enhanced by incorporating with sodium caseinate (NaCas). This present work further explored the characteristics of NaCas–chlorophyll dispersion in simulated gastrointestinal digestion and its inhibitory effects on human epithelial colorectal adenocarcinoma cells (Caco-2 cells). Results indicated that the gastrointestinal digestion resulted in alterations to the physical appearance of the NaCas–chlorophyll dispersion. Fourier-transform infrared spectroscopy illustrated that the second structure of NaCas underwent alterations during gastrointestinal digestion. Morphological observation revealed that the digested NaCas–chlorophyll dispersion exhibited granular morphology with smaller particle size. The Caco-2 cells exposed to digested NaCas–chlorophyll dispersion exhibited decreased viability and destroyed mitochondrial structure, which may be related to the enhanced absorptivity of the NaCas–chlorophyll dispersion following gastrointestinal digestion. These findings provided theoretical basis for understanding the characteristics changes and biological activity of NaCas–chlorophyll dispersion during gastrointestinal digestion.
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Science China-Chemistry
·
2025
·
IF 9.7
Liang Li Ya,Wang Xiao Yuan,Gao Ya Ting,Wu Da Jun,Li Da Wei,Chen Bin Bin
Ordinary metal salts have become a promising afterglow material because of the characteristics of wide sources, low cost, and easy availability. However, their extremely weak afterglow efficiency makes them rarely used in practical applications. In this study, we proposed a ligand engineering strategy to greatly enhance the afterglow efficiency of metal salts. Al 2 (SO 4 ) 3 , as a typical metal salt, has only a photoluminescence quantum yield (PL QY) as low as 0.1% and an unmeasurable phosphorescent QY. After doping with dual organic ligands, the PL QY of Al 2 (SO 4 ) 3 has increased by nearly 200 times, reaching 19.90%. Meanwhile, the afterglow intensity of Al 2 (SO 4 ) 3 has increased by approximately 20 times, accompanied by a great increase in phosphorescent lifetime from 416.15 to 2870.08 ms (a about 7-time increase). The enhancement mechanism of afterglow efficiency is ascribed to the fact that the excited electrons from the dual ligands can be directly captured by oxygen defects (trap), then transferred to the emitters (Al 3+ ions), and ultimately achieving efficient afterglow luminescence. This study utilizes ligand engineering strategy to improve the afterglow luminescence efficiency of metal salts, achieving their applications in deep ultraviolet (UV)-excited light emitting devices and visual ethylene glycol recognition.
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APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
·
2025
·Vol. 131
·期 6
·1-12
·
IF 2.8
Cai Hongxin,Yu Hang,Liu Yuanyuan,Yan Lingling,Chen Liang,Hu Qiang,Wang Lingli,Li Bin
A series of FeCl 3 doped MIL-101(Cr)/silicon nanoporous pillar array (FeCl 3 /MIL-101(Cr)/Si-NPA) humidity sensors were prepared by growing FeCl 3 doped MIL-101(Cr) on Si-NPA via a facile spin-coating method. Systematically evaluation of capacitive sensing performance demonstrated that FeCl 3 incorporation significantly enhanced humidity sensitivity. This improvement can be attributed to the increased hydrophilicity of the MIL-101(Cr)/Si-NPA composite membranes induced by FeCl 3 , as confirmed by the water contact angle test results. Notably, the 8 wt.% FeCl 3 /MIL-101(Cr)/Si-NPA humidity sensor exhibited the best comprehensive sensing properties, with excellent linearity (R 2 = 0.991) in the 11–75% relative humidity (RH) range. The capacitance of the humidity sensor increased by nearly three orders of magnitude from 11% RH to 75% RH at 300 Hz. Additionally, the humidity sensor displayed fast response (46 s) and recovery (6 s) times, as well as excellent reproducibility. The sensing mechanism was explored through the analysis of complex impedance curves. These finding indicate that the 8 wt.% FeCl 3 /MIL-101(Cr)/Si-NPA sensor holds considerable promise for humidity sensing applications.
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Nature Communications
·
2025
·Vol. 16
·期 1
·1-14
·
IF 15.7
Du Jiang,Xu Huazhen,Zhang Da-xia,Feng Shouqian
Soil salinization hinders sustainable development of global agriculture. Dopamine (DA) delivery is promising for mitigating the detrimental effects of salt on plants. However, self-polymerization limits delivery and effectiveness. Here we chelated DA with ethylenediamine tetraacetic acid and zinc to reduce self-polymerization. To reduce soil adsorption, a sodium lignosulfonate and octadecyl dimethyl benzyl ammonium chloride nanocarrier is made for delivery to the plant. Compared with DA monomer, the soil adsorption rate of the DA in the nanocarrier is 46.02% lower. Salt stress experiments reveal, compared with NaCl and DA groups, the nanocarrier group exhibits significant increases in growth indicators for tomato plants. The beneficial effect is attributed to the increases in proline content, antioxidant capacity, and K + /Na + ratios in the plants. Similar results are also observed with woody pear seedlings. These findings provide insights into alleviating crop salt stress.
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PubMed
高影响因子
ACTA PHARMACOLOGICA SINICA
·
2025
·
IF 8.4
Xia Ling-yan,Yu Nai-rong,Huang Su-ling,Qu Hui,Qin Li,Zhao Qin-shi,Leng Ying
Non-alcoholic steatohepatitis (NASH) has emerged as a prevalent chronic liver disease with a huge unmet clinical need. A few studies have reported the beneficial effects of Poria cocos Wolf ( P. cocos ) extract on NASH mice, but the active components were still unknown. In this study we investigated the therapeutic effects of dehydrotrametenolic acid methyl ester (ZQS5029-1), a lanosterol-7,9(11)-diene triterpenes in P. cocos , in a high-fat diet plus CCl 4 induced murine NASH model and a GAN diet induced ob/ob murine NASH model. The NASH mice were treated with ZQS5029-1 (75 mg·kg –1 ·d –1 , i.g.) for 6 and 8 weeks, respectively. We showed that ZQS5029-1 treatment markedly relieved liver injury, inflammation and fibrosis in both the murine NASH models. We found that ZQS5029-1 treatment significantly suppressed hepatic NOD-, LRR-, and pyrin domain-containing protein 3 (NLRP3) inflammasome activation in both the NASH murine models, and blocked lipopolysaccharides (LPS)+adenosine 5’-triphosphate (ATP)/Nigericin-induced NLRP3 inflammasome activation in bone marrow-derived macrophages (BMDMs) and Kupffer cells in vitro. We demonstrated that ZQS5029-1 directly bound to the H236 residue of mouse Caspase-1, thereby inhibiting NLRP3 inflammasome activation. The effects of ZQS5029-1 on macrophage-hepatocyte/HSC crosstalk were analyzed using the supernatants from macrophages preconditioned with LPS + ATP introduced into hepatocytes and hepatic stellate cells (HSCs). We found that the conditioned medium from the BMDMs induced injury and death, as well as lipid accumulation in hepatocytes, and activation of HSCs; these effects were blocked by conditioned medium from BMDMs treated with ZQS5029-1. Moreover, the protective effects of ZQS5029-1 on hepatocytes and HSCs were eliminated by H236A-mutation of Caspase-1. We conclude that ZQS5029-1 is a promising lead compound for the treatment of NASH by inhibiting NLRP3 inflammasome activation through targeting Caspase-1 and regulating the macrophage-hepatocyte/HSC crosstalk.
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