METALS AND MATERIALS INTERNATIONAL
·
2026
·
IF 4.5
Tan QingRong,Zhu Jiyuan
The corrosion susceptibility of magnesium alloys is the most formidable challenge in large-scale applications. In this work, a highly corrosion-resistant coating was fabricated on a magnesium-alloy surface to protect the underlying substrate. Unlike conventional hydrothermal methods, this approach does not improve corrosion resistance by altering the coating’s precursor materials; instead, it focuses on investigating grain behavior at different temperatures to regulate the coating’s corrosion resistance. By extending the heating duration, the coating exhibited increased thickness, grain refinement, and a denser, more ordered arrangement, which effectively blocked corrosive ions and consequently led to a significant improvement in corrosion resistance. To verify corrosion-resistance performance, the as-prepared coatings were immersed in a saturated sodium chloride solution for 15 days; the coatings exhibited almost no corrosion, whereas the magnesium substrate had nearly completely dissolved by day 10. Additionally, when coated samples were immersed in an HCl solution at pH 2 for 15 days, only slight surface corrosion was observed on the coatings. Electrochemical tests indicated that when the heating duration was extended to 5 h, corrosion resistance reached its maximum: the coating’s impedance was six orders of magnitude higher than that of the substrate, and its corrosion current density decreased by five orders of magnitude, consistent with the immersion tests. Here, grain refinement and dense packing played critical roles by reducing porosity and crack density, thereby blocking the ingress of chloride and other corrosive ions. These results further confirm that grain refinement achieved by prolonging the heating duration provides a novel strategy for enhancing the performance of corrosion-resistant coatings. Graphical The alternative text for this image may have been generated using AI.
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高影响因子
Asian Journal of Pharmaceutical Sciences
·
2026
·
IF 12.6
Fengkai Qiu,Xiaoxiao Chen,Qianhui He,Kai Li,Xinlong Chai,Shiji Fang,Fazong Wu,Dengke Zhang,Liyun Zheng,Zhongwei Zhao,Minjiang Chen,Jin Su,Jiansong Ji,Gaofeng Shu
Hepatocellular carcinoma (HCC) is commonly diagnosed at intermediate or advanced stages. While transcatheter arterial embolization (TAE) is the accepted locoregional therapy, embolization inevitably induces severe intratumoral hypoxia, leading to excessive lactate accumulation, metabolic reprogramming and the formation of an immunosuppressive tumor microenvironment (TME), factors that collectively limit durable therapeutic efficacy and promote tumor recurrence. Although immunotherapy has shown promise in HCC, the efficacy of combining TAE with immune-based strategies remains suboptimal, largely due to metabolic constraints and T cell dysfunction within the post-embolization TME. Interleukin-2 (IL-2) therapy can stimulate effector T cells but suffers from the drawbacks of systemic toxicity, a short half-life and TME-induced dysfunction. Recent evidence indicates that lactate-rich, acidic TMEs impair IL-2 stability and signaling, suppress CD8⁺ T cell function, and promote Treg cell activity, thereby further compromising IL-2-based immunotherapy following TAE. Here, we developed a nano-immunotherapy platform (Syr/IL-2@MPDA) using mesoporous polydopamine (MPDA) nanoparticles co-loaded with His-tagged IL-2 and the monocarboxylate transporter inhibitor Syrosingopine (Syr). Syr-mediated lactate regulation alleviates TME acidity and restores IL-2 activity, while MPDA enables mild photothermal therapy (mPTT) to transform immunologically "cold" tumors into "hot" phenotypes, thereby enhancing the immune response. This integrated strategy significantly enhanced antitumor immunity, achieving a tumor growth inhibition rate of 70.87% in a murine subcutaneous tumor model. In an orthotopic N1S1 HCC rat model, the treatment demonstrated strong therapeutic efficacy in combination with αPD-L1 and TAE, overcoming the hazards of TAE-induced lactate accumulation and immune suppression. Overall, this study demonstrates a safe and effective strategy that enhances IL-2 immunotherapy through mPTT and metabolic modulation, offering a promising combination treatment for advanced HCC.
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PubMed
高影响因子
Forests
·
2026
·Vol. 17
·期 6
·668
·
IF 3.1
Xianglian Jin,Zhen Zhang,Jing Ning,Ziying Liu,Chen Zhang,Ling Ma,Yanfen Zhang
Pine wilt disease poses a serious threat to pine forest health, and efficient biocontrol agents are urgently needed.Bacillus velezensisYG4-2 is a pine endophytic bacterium with strong nematicidal activity againstBursaphelenchus xylophilus, but the effect of oxygen conditions on its activity remains unclear. In this study, we compared the growth, nematicidal activity, and extracellular metabolite profiles of YG4-2 under aerobic and anaerobic conditions. Aerobic cultivation significantly increased bacterial biomass and enhanced the nematicidal activity of both bacterial cultures and cell-free supernatants. LC-MS/MS-based untargeted metabolomics revealed clear metabolic differences between the two oxygen conditions, with 19 metabolites significantly upregulated under aerobic conditions. Activity validation showed that kynurenic acid exhibited the strongest nematicidal activity among the tested candidate metabolites. Targeted LC-MS/MS further confirmed the accumulation of kynurenic acid in aerobic culture supernatants, with an estimated concentration of 0.38 ng/mL, and no obvious signal was detected under anaerobic conditions. These results suggest that oxygen enhances the nematicidal activity of YG4-2 by promoting growth and regulating extracellular metabolite production, with kynurenic acid as a potential oxygen-responsive active metabolite.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Haoxiang Wang,Peilun Shen,Dianwen Liu,Rong Peng,Hang Zhu,Xianren Dai,Jinpeng Cai
EDA/2-MP turns inert Cu–O–Si domains into KBX-responsive Cu-organic sites. • EDA unlocks Cu(II) sites for 2-MP anchoring via Cu–N/Cu–S bonding. • A continuous ~30 nm N/S/Cu-rich activation film is visualized on chrysocolla. • Interface reconstruction enables 95% chrysocolla recovery and selective separation. Chrysocolla is one of the most difficult oxide copper minerals to recover by flotation because of its strong hydrophilicity, low reactivity, and poor adaptability to conventional activation methods. In this study, an EDA/2-MP synergistic activation system was developed using KBX as the collector. At pH 10, single-mineral flotation tests were conducted with 38–74 μm chrysocolla at a pulp solid concentration of 10 g/L and a flotation time of 8 min, with three independent tests performed for each condition; an artificial chrysocolla–dolomite mixture at a mass ratio of 1:1 was also used to evaluate separation performance. At EDA, 2-MP, and KBX concentrations of 40, 280, and 60 mg/L, respectively, chrysocolla recovery reached 95.34%. In the mixed-mineral system, concentrate Cu recovery remained above 95%, with a Cu grade of approximately 34%. FIB-TEM revealed a continuous low-crystallinity film approximately 31.2–33.9 nm thick after EDA/2-MP treatment. Raman, XPS, and ToF-SIMS showed that EDA/2-MP altered the chemical environments of surface Cu, N, and S species and promoted the enrichment of KBX-related components at the activated interface. Accordingly, EDA/2-MP pretreatment followed by KBX addition increased the chrysocolla contact angle from 24.52° to 82.65°, confirming surface hydrophobization. This study provides a new selective interfacial activation strategy for efficient flotation recovery of refractory silicate-type oxide copper minerals. Download: Download high-res image (203KB) Download: Download full-size image
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高影响因子
ENVIRONMENTAL RESEARCH
·
2026
·
IF 8.2
Minming Chen,Yongjie Liu,Wenwen Qu,Qianlong Zhang,Fei Li,Yi Wang,Xuan Zhai
Per- and polyfluoroalkyl substances (PFASs) are persistent environmental contaminants closely linked to metabolic liver disease; however, the transgenerational hepatotoxicity and underlying mechanisms of emerging PFAS substitutes remain poorly understood. Herein, we focused on 6:2 polyfluoroalkyl phosphate diester (6:2 diPAP), a prominent PFAS substitute, to evaluate its developmental hepatotoxicity. By integrating zebrafish phenotyping, transcriptomic feature selection, virtual gene knockout, and experimental validation, we characterized the candidate molecular events through which 6:2 diPAP triggers non-alcoholic fatty liver disease (NAFLD)-like injury in offspring. Early-life exposure to environmentally relevant concentrations of 6:2 diPAP from 0 to 5 dpf, particularly 500 ng/L, induced persistent hepatic lipid accumulation, hepatic vacuolation, and metabolic disturbances in zebrafish at 28 dpf. Integrated network and transcriptomic analyses identified sequestosome 1 (SQSTM1) as a key stress-responsive hub associated with pathological hepatocyte remodeling. Quantitative real-time polymerase chain reaction (RT-qPCR) and immunofluorescence analyses further demonstrated exposure-responsive increases in sqstm1 expression and SQSTM1/p62 protein fluorescence intensity, with the strongest changes observed in the 500 ng/L group. Human single-nucleus RNA-seq and pseudotime analyses revealed that SQSTM1-high hepatocytes were enriched in injury-associated and senescence-associated states during NAFLD progression, suggesting a link between SQSTM1 activation and hepatocyte-state deterioration. Furthermore, virtual SQSTM1 knockout in NASH hepatocytes predicted oxidative stress, xenobiotic metabolic, and inflammatory rewiring. Molecular docking predicted a feasible 6:2 diPAP-SQSTM1 interaction with a binding affinity of −6.0 kcal/mol, and 200 ns molecular dynamics simulation supported the structural plausibility of the ligand-protein complex. Collectively, this study proposes a 6:2 diPAP-SQSTM1-hepatocyte remodeling axis and provides a comprehensive framework linking early-life PFAS exposure with hepatocyte-state transition and NAFLD-like metabolic dysfunction.
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高影响因子
Toxics
·
2026
·Vol. 14
·期 8
·691
·
IF 4.9
Zhao Zhou,Hongbin Gao,Shunda Zhu,Lvlue Cai,Yijing Chen,Keqi Hu,Yungang Liu
As a commonly present organophosphorus flame retardant and persistent organic pollutant, 2-ethylhexyl diphenyl phosphate (EHDPP) has been observed to be genotoxic in cultured human hepatoma (HepG2) cells which depends on CYP activities. Yet, its impacts on hepatic Cyp expression, hepatotoxicity and genotoxicity in intact mammalians remain unidentified. In this study, adult male C57BL/6J mice received EHDPP by gastric gavage at doses of 50, 100, and 150 mg/kg (b.w.)/d for 7 d, then the hepatic expression of several Cyp proteins, aryl hydrocarbon receptor (AhR) and pregnane X receptor (PXR) was analyzed by Western blotting; hepatoxicity was determined by serum ALT/AST activities and hepatic histological examination, while genotoxicity by comet assay, phosphorylated histone (γ-H2AX) protein, micronucleus test, and Pig-a assay. A micronucleus test in mouse hepatoma (Hepa1-6) cells in vitro was employed to observe the modulating effect of PCB 126 (100 nM)/BAY-218 (700 nM) (Ahr-Cyp1a1 activator/inhibitor). The results indicated that EHDPP induced hepatic Cyp1a1, 2e1, AhR, Cyp1a2, Cyp3a4 and PXR proteins and histologic liver damage at 50 mg/kg/d and/or higher doses, while at the highest dose (150 mg/kg/d) with hepatic DNA damage and micronucleus formation in bone marrow polychromatic erythrocytes. The result of Pig-a assay (at 14 and 28 d) was negative. In Hepa1-6 cells EHDPP induced micronucleus marginally; however, this effect was enhanced by PCB 126, while abolished by BAY-218. This study suggests that EHDPP may enhance protein expression of hepatic Cyp1a1, Cyp2e1, AhR and PXR and induce liver damage and DNA/chromosome damage in mice; Cyp1a1 might be a major activating enzyme.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Jiaxing Lu,Guangfu Qian,Yihao Xu,Guorong Wang,Yuan Yao,Ruyu Zhang,Jinli Chen,Panagiotis Tsiakaras
Lignin-derived carbon-encapsulated heterojunction promotes in-situ NiOOH formation. • Self-Supported nanoarchitecture enables mass transfer and mechanical robustness. • Lignin-derived carbon-encapsulated improves corrosion resistance. • LC@FeNi 3 /Ni 2 V 2 O 7 stable operates for 1100 h at 1500 mA cm −2 . Although Ni-based catalysts hold promise for replacing the oxygen evolution reaction with the urea oxidation reaction (UOR) in water electrolysis to energy-saving hydrogen production, their activity and long-term stability require further improvement. Herein, we developed a self-supported catalyst composed of lignin-derived carbon (LC) encapsulating a FeNi 3 /Ni 2 V 2 O 7 heterojunction (LC@FeNi 3 /Ni 2 V 2 O 7 ) to tackle these challenges. LC@FeNi 3 /Ni 2 V 2 O 7 requires low potentials of 1.22 V and 1.39 V at 10 and 1000 mA cm −2 . According to operando analysis, the UOR follows an indirect mechanism on the LC@FeNi 3 /Ni 2 V 2 O 7 surface. This reaction pathway is facilitated by the synergy between the lignin-derived carbon and the heterointerfaces, which promotes the generation of active NiOOH species and enables a lower potential than catalysts without these components. In addition, the self-supporting structure ensures efficient gas-liquid release, while the carbon layer enhances corrosion resistance, allowing it to achieve a current density of 1.5 A cm −2 at only 1.84 V under non- membrane electrode assembly conditions, with a potential decay of only 100 mV over 1100 h, demonstrating its potential for commercial applications. This work presents not only an efficient UOR catalyst but also a novel strategy for engineering lignin-derived carbon materials to achieve industrial-scale urea-assisted water electrolysis. Download: Download high-res image (192KB) Download: Download full-size image
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高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2025
·
IF 4.3
Qi Liu,Yihan Yin,Hongxia Gao,Lianbo Liu,Shisen Xu,Teerawat Sema,Min Xiao,Zhiwu Liang
Amine degradation is one of the key issues that hampers the implementation of large-scale carbon capture technology. Degradation inhibitors can extend the lifetime of amine solutions, thereby lowering the operating cost of CO 2 capture system in the long term. In this work, different inhibitors including chelating agents, scavengers, and their blends were studied to inhibit the oxidative degradation of 1-amino-2-propanol (1AP). Amine loss, alkalinity loss, NH 3 emissions and heat-stable salt production were measured to evaluate the inhibitory effect. The parameter, namely inhibition factor, was proposed to quantify the effect of inhibitors. Two chelating agents were found to show good inhibitory effects on 1AP degradation, with inhibition factors of 7.1 and 4.3, respectively. In addition, the inhibition factor was increased to 9.4 by blending the inhibitors. A significant reduction in the inhibitor dosage was applied to achieve a similar inhibiting effect due to the excellent synergistic effects between the blended inhibitors.
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高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Jun Qin,Xiaoshan Zheng,Dongshu Wang,Chunyu Song,Wenzheng Shi,Ying Lu
Euryale ferox Salisb. seeds (ES) are rich in biologically active polysaccharides, and degradation treatment can enhance the hypoglycemic activities of polysaccharides. However, regulation mechanism of ES polysaccharide (ESP) and its degradation polysaccharide on blood glucose in type 2 diabetes mellitus (T2DM) is still unclear. In this study, a novel degraded polysaccharide (D-ESP) was prepared by H 2 O 2 -ultrasound treatment of ESP. It was found that H 2 O 2 -ultrasound treatment did not disrupt sugar unit structure of D-ESP. Both ESP and D-ESP had α-glucosidase inhibitory activity and good gastrointestinal digestive stability, and D-ESP had better hypoglycemic activity than ESP. D-ESP could restore the glucose metabolism of insulin-resistant (IR) HepG2 cells to 83.22 % of normal level, and reduce the blood glucose of T2DM mice by 46.51 %. D-ESP was found to regulate blood glucose similarly to that of drug metformin. D-ESP could reduce IR levels in T2DM mice via two ways. One was to improve inflammatory response by promoting interleukin 2 release; the other was to promote high-density lipoprotein cholesterol synthesis and inhibition triglyceride production by restoring liver cell damage, thus improving glucose metabolism disorders. Consequently, D-ESP is a promising ingredient in anti-diabetes. This study can provide theoretical basis for the development of hypoglycemic products for T2DM.
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PubMed
高影响因子
INTERNATIONAL JOURNAL OF ANTIMICROBIAL AGENTS
·
2024
·Vol. 64
·期 2
·107225
·
IF 4.9
Yali Zhang,Mengyue Liu,Jiangfeng Zhang,Jie Wu,Lijuan Hong,LiQiang Zhu,Jinzhao Long
bla NDM-1 and bla KPC-2 are responsible for the global increase in carbapenem-resistant Klebsiella pneumoniae , posing a great challenge to public health. However, the impact of phylogenetic factors on the dissemination of bla NDM-1 and bla KPC-2 is not yet fully understood . This study established a global dataset of 4051 bla NDM-1 + and 10,223 bla KPC-2 + K. pneumoniae genomes, and compared their transmission modes on a global scale. The results showed that bla NDM-1 + K. pneumoniae genomes exhibited a broader geographical distribution and higher sequence type (ST) richness than bla KPC-2 + genomes, indicating higher transmissibility of the bla NDM-1 gene. Furthermore, bla NDM-1 + genomes displayed significant differences in ST lineage, antibiotic resistance gene composition, virulence gene composition and genetic environments compared with bla KPC-2 + genomes, suggesting distinct dissemination mechanisms. bla NDM-1 + genomes were predominantly associated with ST147 and ST16, whereas bla KPC-2 + genomes were mainly found in ST11 and ST258. Significantly different accessory genes were identified between bla NDM-1 + and bla KPC-2 + genomes. The preference for bla KPC-2 distribution across certain countries, ST lineages and genetic environments underscores vertical spread as the primary mechanism driving the expansion of bla KPC-2 . In contrast, bla NDM-1 + genomes did not display such a strong preference, confirming that the dissemination of bla NDM-1 mainly depends on horizontal gene transfer. Overall, this study demonstrates different phylogenetic drivers for the dissemination of bla NDM-1 and bla KPC-2 , providing new insights into their global transmission dynamics.
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高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
·
2020
·
IF 2.726
Shaoxing Guo,Pengyun Chen,Limei Song,Ping Guo,Jianhua Gao
A new mixed-anion phosphate crystal Cs 2 Bi 2 Sr(P 2 O 7 )(PO 4 ) 2 was obtained by molten salt method. Single-crystal X-ray diffraction data demonstrated that the compound crystallizes in monoclinic space group P 2 1 /c (No.14) with unit cell parameters a = 17.708(10) Å, b = 9.156(5) Å and c = 9.221(5) Å, β = 90.160(8) °. The structure exhibits a novel three-dimensional network, which is made up of BiO 6 , BiO 5 , SrO 6 and CsO 11 polyhedra sharing the corners with PO 4 tetrahedra and P 2 O 7 diphosphate groups. The band gap was estimated by the combined density functional theory and experimental study. Photoluminescence property of Cs 2 Bi 2- x Sr(P 2 O 7 )(PO 4 ) 2 : x Eu 3+ showed the excellent thermal stability and high quantum efficiency .
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高影响因子
JOURNAL OF RARE EARTHS
·
2021
·Vol. 40
·期 11
·1691-1698
·
IF 3.712
Qingsong Hu,Zaifa Pan,Guijie Liang
White light-emitting diodes (WLEDs) fabricated by single-phase full color emitting phosphor are an emerging solution for health lighting. The crystallographic site occupation of activators in a proper host lattice is crucial for sophisticated design of such phosphor. Here, we report a high quality white light-emitting phosphor Ba 2 Ca(BO 3 ) 2 :Ce 3+ (K + ),Eu 2+ ,Mn 2+ with spectral distribution covering whole visible region. Blue light emission originates from Ce 3+ ions occupying preferentially Ba 2+ site by controlling synthesis conditions. Green and red lights are obtained from Eu 2+ occupying Ba 2+ (and Ca 2+ ) site and Mn 2+ occupying Ca 2+ site, respectively. In this triple-doped phosphor, strong red emission with a low concentration of Mn 2+ is realized by the efficient energy transfer from Ce 3+ and Eu 2+ to Mn 2+ . Furthermore, high quality white light is accomplished by properly tuning the relative doping amount of Ce 3+ (K + )/Eu 2+ /Mn 2+ based on efficient simultaneous energy transfer. The results indicate that Ba 2 Ca(BO 3 ) 2 :Ce 3+ (K + ),Eu 2+ ,Mn 2+ is a promising white light-emitting phosphor in WLEDs application.
研究领域:
材料科学
·
无机化学
·
发光材料
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固态照明
·
能源材料
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高影响因子
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