Materials Science and Engineering B-Advanced Functional Solid-State Materials
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2016
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IF 2.331
B.Y. Huang,B.L. Feng,L. Luo,C.L. Han,Y.T. He,Z.R. Qiu
Novel Sr 3 Y(PO 4 ) 3 :Dy 3+ , Eu 3+ (SYP:Dy 3+ , Eu 3+ ) phosphors were synthesized by a standard solid-state reaction under an ambient air atmosphere and their structural and optical properties were investigated. XRD and diffuse reflectance spectra (DRS) were used to explore structural properties. The former showed that single phase phosphors were obtained and that the rare earth ions entered into the cubic host by substituting the smaller Y 3+ ions and thereby enlarging the unit cell. The DRS indicated that the host has a direct bandgap of 4.5 eV. Under 393 nm excitation, a strong and stable warm white light emission with high color purity was achieved in SY 0.92 P:0.06Dy 3+ , 0.04Eu 3+ . The energy transfer from Dy 3+ to Eu 3+ ions was investigated and the related mechanism was discussed based on the optical spectra and emission decay curves. The thermal quenching of emission is similar to that of YAG:0.06Ce 3+ . The results show the single phase phosphor is potential in warm white LED.
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ACS Applied Materials & Interfaces
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2021
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IF 9.229
Xiaowei Li,Xing Shen,Junmei Zhao,Yang Yang,Qiangqiang Zhang,Feixiang Ding,Miao Han,Chunliu Xu,Chao Yang,Huizhou Liu,Yong-Sheng Hu
Na-ion batteries (NIBs) have been considered as potential candidates for large-scale energy storage, where O3-type Na-based layered oxide cathodes have attracted great attention due to their high capacity and low cost. However, O3-NaxTMO2 materials still suffer from insufficient air stability, which could lead to deteriorative electrochemical properties and thus hinder their practical application. In this work, a series of Al-doped O3-NaFe(1/3–x)Ni1/3Mn1/3AlxO2 cathodes prepared by a co-precipitation method were investigated to enhance their electrochemical performance and air stability through stabilizing their structural and interface chemical properties. The Al-doped O3-NaFe(1/3–0.01)Ni1/3Mn1/3Al0.01O2 (NFNMA0.01) cathode delivers a comparable capacity of 138 mAh g–1 and keeps a capacity retention of 85.88% after 50 cycles at 0.2 C, while the undoped O3-NaFe1/3Ni1/3Mn1/3O2 (NFNM) can only keep a capacity retention of 71.02%, although with an initial capacity of 141 mAh g–1 at 0.2 C. For the air stability, the capacity decay rates are 58.87 and 5.07% for the undoped NFNM and Al-doped NFNMA0.01 after the air exposure for 30 days, respectively. The greatly decaying electrochemical performance could be due to the formation of carbonates during air exposure, which can be efficiently suppressed by Al doping. The doped Al3+ has been confirmed to be inserted into the NFNM crystal lattice, inducing the reduced values of lattice parameters a and c due to the smaller ionic radius of Al3+ (53.5 pm) vs Fe3+ (55.0 pm). This study demonstrates that Al doping plays an important role in the air stability and cycling stability for layered cathode materials, which offers an efficient strategy to optimize the material design for their practical application in NIBs.
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CANADIAN JOURNAL OF CHEMICAL ENGINEERING
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2025
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IF 1.9
Yu-cheng Jiang,Bao-guang Zhu,Xiang-li Long
The oxidation of 1-(4-chlorophenyl)-pyrazolidin-3-one to 1-(4-chlorophenyl)-1H- pyrazol-3-ol by air can be accelerated by the Co(II)@AC catalyst prepared by loading Co(II) on activated carbon with wet impregnation method. ZnCl 2 solution has been used to treat activated carbon to ameliorate the catalytic ability of Co(II)@AC catalyst. The experiments indicate that the optimal catalyst is made by immersing activated carbon in 0.7 mol/L ZnCl 2 solution at 50°C for 6 h with a liquid/solid ratio of 30/1 (mL/g) followed being calcined at 700°C for 5 h at a heating rate of 5°C/min under N 2 protection. The 1-(4-chlorophenyl)-1H-pyrazol-3-ol concentration catalyzed by the catalyst loaded on the best carbon reaches 0.01953 kg/L, which is 27.56% higher than that catalyzed by the catalyst loaded on the original carbon. The characterization results manifest that the modification with ZnCl 2 enriches the porous structure and increases the acidic groups on the surface of activated carbon. The conversion of 1-(4-chlorophenyl)-pyrazolidin-3-one is mainly determined by the physical structure of the activated carbon while the selectivity to 1-(4-chlorophenyl)-1H- pyrazol-3-ol is largely affected by the chemical characteristics of the activated carbon.
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Marine Drugs
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2025
·Vol. 23
·期 11
·423
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IF 5.4
Pingting Liu,Fengyuan Li,Zhicong Liu,Yang Liu
Galectin-3 (Gal-3) is a histologic marker of pancreatic cancer and a potential therapeutic target. This study aimed to characterize a novel sulfated agarose-derived oligosaccharide (DP9) from marine algae,Gracilaria lemaneiformis, evaluate its Gal-3 inhibitory activity, and investigate its anti-pancreatic cancer mechanisms. Through controlled acid hydrolysis, a series of odd-numbered oligosaccharides (DP3-11) were obtained, in which DP9 showed the strongest Gal-3 inhibition in hemagglutination assays. Structural analysis confirmed DP9’s unique composition including an alternating β (1→4)-D-galactose and α (1→3)-3,6-anhydro-L-galactose backbone, featuring partial 6-O-methylation on β-D-galactose and 6-O-sulfation on 3,6-anhydro-α-L-galactose residues. Molecular docking revealed DP9’s binding to Gal-3’s carbohydrate recognition domain through key hydrogen bonds (His158, Arg162, Lys176, Asn179 and Arg186) and hydrophobic interactions (Pro117, Asn119, Trp181 and Gly235), with the sulfate group enhancing binding affinity. In vitro studies demonstrated DP9’s selective anti-pancreatic cancer activity against BxPC-3 cells, including inhibition of cell proliferation; S-phase cell cycle arrest; induction of apoptosis; and suppression of migration and invasion. Mechanistically, DP9 attenuated the Gal-3/EGFR/AKT/FOXO3 signaling pathway while showing minimal cytotoxicity to normal cells. This study first demonstrated that agarose-derived odd-numbered oligosaccharides (DP9) can serve as effective Gal-3 inhibitors, which proved its potential as a marine oligosaccharide-based therapeutic agent for pancreatic cancer.
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ACS Sustainable Chemistry & Engineering
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2025
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IF 7.3
Xiangyue Liao,Shuhan Yi,Min Xie,Xiaoying Li,Binghao Lin,Yufan Chen,Yangjie Li,Xuemei He,Qiaoji Zheng,Kwok-Ho Lam,Dunmin Lin
Na3V2(PO4)3 (NVP) is regarded as a promising cathode for sodium-ion batteries (SIBs) owing to its high operating voltage and robust NASICON-type framework. However, its practical application is hindered by poor rate capability and limited long-term cycling stability. In this work, a high-entropy substituted cathode, Na3V1.75(Ca, Zr, Al, Mn, Mg)0.25(PO4)3 (denoted as HE-NVP), is successfully synthesized via a conventional solid-state method. The introduction of multiple aliovalent cations leads to local structural regulation, where elongation of Na(1)–O bonds and contraction of Na(2)–O bonds enhance structural stability and facilitate fast Na+ migration. Simultaneously, the V4+/V5+ redox couple is activated at ∼4.0 V, significantly boosting energy density and cycling stability. High-entropy substitution also promotes pseudocapacitive behavior through the modulation of the local chemical environment and vanadium redox chemistry. As a result, HE-NVP delivers excellent rate performance with a high specific capacity of 93.2 mAh g–1 at 50 C and outstanding long-term durability, retaining 81.8% of its initial capacity after 2,000 cycles at 20 C. Even under harsh conditions of 50 C, it maintains 78% capacity retention after 4,000 cycles, with an ultralow capacity decay rate of 0.006% per cycle after 6,000 cycles. Ex-situ XRD analysis confirms a single-phase solid-solution reaction mechanism with a minimal volume change of only 1.5% during Na+ insertion/extraction. This study highlights a practical and effective strategy for designing high-performance SIB cathodes through rational high-entropy engineering of the crystallographic structure and redox chemistry.
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Insect Science
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2026
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IF 3.7
Honglei He,Feng Lan,Bei Zhang,Tianzi Gu,Jianyang Bai,Qing-He Zhang,Jacob D. Wickham,Longwa Zhang
The olfactory system is pivotal for insects to detect external chemical signals and regulate essential life processes. Dendroctonus valens , an invasive forest pest, displays strong chemotaxis toward the plant kairomone (+)-3-carene. To unravel the molecular mechanism underlying olfactory recognition, we identified 28 odorant-binding proteins (OBPs) from D. valens via transcriptome sequencing and identified DvalOBP6 and DvalOBP18 as potential key candidates for this host kairomone component using qRT-PCR. Tissue expression analysis revealed that these two Minus-C OBPs are predominantly expressed in olfactory-related tissues (antennae, legs, and wings) with distinct sexual dimorphism. Homology modeling and molecular docking showed that both proteins adopt a typical six- α -helix fold, and bind (+)-3-carene primarily via hydrophobic interactions with binding energies of −5.53 kcal/mol and −4.96 kcal/mol, respectively. RNA interference of DvalOBP6 or DvalOBP18 significantly abolished the olfactory preference of D. valens adults for (+)-3-carene. Collectively, our findings demonstrate that DvalOBP6 and DvalOBP18 play critical roles in (+)-3-carene perception, providing a theoretical basis for the development of green pest control technologies targeting insect olfactory communication.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Yajie Deng,Zhihao Jiang,Zihao Han,Tiqun Wei,Jianwei Dao,Liang Yang
Driven by the escalating demand for efficient and stable full-spectrum red-emitting phosphors, a series of Eu-doped Sr 3 Y(BO 3 ) 3 red phosphors were synthesized via high-temperature solid-state reaction method. The crystal structure, morphology, and photoluminescence properties were systematically characterized. Under near-ultraviolet (near-UV) excitation, the Sr 3 Y(BO 3 ) 3 :Eu 3+ phosphor exhibits intense red emission corresponding to the 5 D 0 → 7 F 2 transition of Eu 3+ , with high color purity. Particularly noteworthy is its combination of excellent thermal stability and humidity resistance—it retains 75% of its room-temperature luminescence intensity at 473 K, and maintains as high as 86.2% of its luminescence intensity under high-humidity conditions. To evaluate its practical applicability, white light-emitting diodes (WLEDs) were fabricated by incorporating commercial BMA:Eu 2+ blue phosphor, BSS:Eu 2+ green phosphor and Sr 3 Y(BO 3 ) 3 :0.36Eu 3+ phosphor into near-UV chips. Driven at 150 mA, the fabricated device emits white light with CIE coordinates of (0.3186, 0.3130), lying close to Planckian locus, correlated color temperature (CCT) of 6284 K and a well-balanced RGB spectrum. Notably, a high CRI value (R a = 81.5) is achieved by the device with an especially impressive R 9 (special color rendering index for deep red) value of 93.3, indicating excellent red rendering performance. Collectively, these results identify Sr 3 Y(BO 3 ) 3 :Eu 3+ as a highly competitive red-emitting phosphor for near-UV-excited full spectrum white LEDs, owing to its superior thermal stability, humidity resistance, and device performance.
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ADVANCED FUNCTIONAL MATERIALS
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2026
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IF 19
Shanhu Wang,Jiachang Bi,Shuya Liu,Jiyang Xie,Yihan Lei,Zihao Lin,Yang He,Hao Fan,Jiayi Qin,Wenyan Zha,Sheng'an Yang,Ji Ma,Hui Zhang,Qingming Chen,Jiangnan Li,Yanwei Cao,Changjian Li,Wanbiao Hu,Liang Wu
Self-assembled nanocomposites typically form through the phase separation of immiscible components, yet controllable synthesis with tailored functionalities remains challenging. Here, we demonstrate a substrate-directed self-assembled 2-(1-3)-structured nanocomposite via topotactic phase separation, preserving the crystallographic orientation from the substrate. It comprises a horizontal antiferromagnetic (AFM) rocksalt layer (2) at the substrate and vertical rocksalt nanopillars (1) embedded in a ferrimagnetic (FiM) spinel matrix (3). The nanopillars arise from kinetic trapping of late-arriving rocksalt species unable to diffuse through the growing spinel layer, forming “frozen diffusion channels” under continuous pulsed laser deposition. Importantly, the comparable magnitudes of AFM anisotropy and AFM-FiM interfacial exchange coupling enable two phenomena: switching between coercivity enhancement and exchange bias regimes, and field-free manipulation of AFM order. This approach offers precise control of magnetic interactions in self-assembled nanocomposites for advanced spintronic applications.
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BIOLOGICAL CONTROL
·
2026
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IF 4
Lingling Cao,Junjie Lu,Yinglu Chen,Yajie Du,Shuqiong Yang,Zhiqiang Yan,Qingling Zheng,Pengfei Duan
White mold disease caused by Pseudodiploöspora longispora is destructive to the production and quality of Morchella . In this study, an endophytic bacterial strain YX-3 was isolated from the ascocarp of Morchella and exhibited significantly antagonistic effects against P. longispora with the inhibition rate of 91.5%. The strain YX-3 was identified to be Pseudomonas chlororaphis subsp. piscium through multi-locus sequence analysis and morphological characteristics. The gene features and functional annotation were analyzed according to the whole genome sequencing. The VOCs produced by strain YX-3 demonstrated significant inhibitory effects on mycelial growth, spore germination of P. longispora and reduced the severity of white mold disease through fumigation during storage. In field experiments, the biological control effect of YX-3 reached to 57.3%. The scanning and transmission electron microscope (SEM and TEM) and fluorescence microscopy revealed that VOCs from YX-3 caused abnormal changes and damaged the cell membrane integrity. Ten VOCs produced by YX-3 were detected through gas chromatography-mass spectrometry, of which seven were evaluated for their antifungal activity against P. longispora. The volatiles, namely 2-undecanone and 2-undecanol exhibited notable inhibitory effects on P. longispora with inhibition rate of 100%, 77.06% at 80 μL/plate and the minimum inhibition concentration of 2-nonanol was 0.75 μL/plate and reduced the severity of white mold disease. Overall, these findings elucidate the biocontrol mechanisms of P. chlororaphis subsp. piscium strain YX-3 and support its potential application as a biocontrol agent against white mold disease in Morchella .
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GREEN CHEMISTRY
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2026
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IF 10.6
Yankai Zhang,Chenxi Zhu,Haoyi Wang,Yunbiao Qi,Ping Sun,Quanxing Zhang,Wei Jiang
Poly(3-hydroxybutyrate) (PHB) is a biodegradable, bio-based polymer with significant application potential. The development of efficient chemical recycling strategies for PHB is essential for advancing a circular bioeconomy. However, existing methods for depolymerizing PHB into crotonic acid (CA), a valuable platform chemical, often rely on harsh reaction conditions, suffer from low selectivity, or require high energy input. Herein, we report a novel catalytic system based on sodium crotonate (NaCA) and stearyl alcohol (StOH), which enables high-yield conversion of PHB to CA under mild conditions (150 °C, 3 Torr). Owing to the synergistic action of NaCA and StOH, rapid depolymerization of PHB is achieved, affording a CA yield of 80.8% with 99.6% purity. Further enhancement using the NaCA/StO-CA synergistic system increases the CA yield to 96.1% with 99.4% purity. Mechanistic investigations, supported by NMR, FTIR, and density functional theory (DFT) calculations, reveal that StOH serves dual roles: it acts as a transesterification agent to reduce the molecular weight of PHB and as a high-boiling solvent to promote continuous removal of CA. Meanwhile, NaCA catalyzes C–O bond cleavage and double bond formation, enabling sustained CA production. The catalytic system was successfully applied to post-consumer PHB waste and PHB in plastic blends, achieving CA yields exceeding 94%. Moreover, a sequential batch recycling strategy was developed for PLA/PHB mixed plastics, in which PLA is first depolymerized to lactide, followed by the selective conversion of PHB to CA, thereby avoiding cross-contamination. The catalytic system exhibits excellent recyclability, maintaining high efficiency over multiple cycles, and thus offers a promising and sustainable approach for closed-loop recycling of bio-based polyesters.
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BRAIN BEHAVIOR AND IMMUNITY
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2026
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IF 7.5
Tao Ye,Xinhuang Lv,Qiyao Li,Xiaolan Liao,Lu Zhan,Conghui Dai,Kun Xiang,Xiaoou Lin,Jing Sun,Jiaming Liu
Gut microbial metabolites abnormity links to Alzheimer’s disease (AD) progression, yet the mechanism remains unknown. Here, we observed a markedly decreased level of indole-3-acetic acid (IAA) in AD patients, and the IAA level was negatively correlated with cognitive impairment. IAA supplementation improved cognitive dysfunction and synaptic damage, and suppressed microglial activation and synaptic phagocytosis in AD mouse and cell models. RNA sequencing revealed an increase in phagocytosis-associated pathway activity and gene expression, and C-C chemokine receptor 4 (CCR4) was identified as a key regulator of this process. IAA could inhibit the expression level of CCR4, and siRNAs CCR4 markedly inhibited microglia-mediated phagocytosis of synapse. We further demonstrated that microglial CCR4 interacts with aryl hydrocarbon receptor (AHR), a key receptor of IAA, and proposed the hypothesis that AHR binds to the CCR4 promoter, thereby inhibiting its transcriptional activity. Moreover, we further revealed that bacteria producing IAA supplementation inhibited microglia-mediated synaptic loss by down-regulating CCR4, thus delaying Alzheimer’s progression. These findings elucidate the mechanisms underlying microbial metabolite IAA’s impact on AD, highlighting that targeting CCR4 inhibition in microglia-mediated synaptic phagocytosis represents a promising therapeutic strategy for AD.
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FOOD CHEMISTRY
·
2026
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IF 10.4
Sheng Wang,Xianhui Du,Li Wang
Myofibrillar protein (MP) suspension was nitrated by exposing to nitrite. • 3-Nitrotyrosine (3-NT) is a biomarker of MP nitration. • A Sensor was made by CeVO 4 -CNT-Nafion nanocomposite modifying on GCE. • 3-NT in nitrosative MP was detected by the sensor coupled with CV. • The proposed method was compared with HPLC method. 3-Nitrotyrosine (3-NT) is a recognized biomarker of protein nitration. In this study, an electrochemical nonenzymatic sensor was developed for 3-NT detection by modifying a glassy carbon electrode with a nanocomposite of CeVO 4 , carboxylated carbon nanotubes (CNT), and Nafion. Scanning electron microscopy revealed that flower-like CeVO 4 nanoparticles were uniformly embedded within the interconnected tubular network of CNT and Nafion. Under optimal conditions, the sensor exhibited a wide linear response to 3-NT in the range of 10 to 900 μM, with a detection limit of 1.20 μM. To validate its practical application, myofibrillar protein (MP) was extracted from pork and exposed to varying concentrations of nitrite at pH 6.0, leading to the formation of 3-NT. These nitrosative MP samples were then analyzed using the developed sensor, and the results were compared with those obtained by HPLC using split samples. The findings demonstrated no significant differences between the two methods. Download: Download high-res image (105KB) Download: Download full-size image
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