Journal of the Taiwan Institute of Chemical Engineers
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2025
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IF 6.3
Yanhua Cui,Yixuan Hong,Weilong Shi,Zengkai Wang
Background Photocatalytic membrane technology has attracted widespread concern in the field of water purification due to its high-efficiency and eco-friendly. However, the active sites of photocatalyst are easily embedding in the polymer membrane, consequently reducing degradation efficiency of photocatalytic membrane. Methods In this study, two-dimensional/two-dimensional regenerated silk fibroin-carbonized carbon modified graphite carbon nitride/bismuth vanadate heterojunction (2D/2D C-g-C 3 N 4 /BiVO 4 ) with excellent photocatalytic performance was synthesized by electrostatic self-assembly method. Then C-g-C 3 N 4 /BiVO 4 heterojunction was selected as catalytic structural units, three-dimensional (3D) interfacial networked poly(vinylidene fluoride) membrane-supported C-g-C 3 N 4 /BiVO 4 heterojunction (C-g-C 3 N 4 /BiVO 4 /PVDF) was fabricated by electrospinning technique. The combination of C-g-C 3 N 4 /BiVO 4 heterojunction and interfacial networked PVDF membrane synergistically enhanced their permeability, antifouling and antibacterial performance. Significant findings The optimized C-g-C 3 N 4 /BiVO 4 /PVDF photocatalytic membrane had higher degradation TC efficiency (83.33 %) than other membrane samples, and the efficiency of bacterial inactivation of C-g-C 3 N 4 /BiVO 4 /PVDF could reach 99.00 %. The C-g-C 3 N 4 /BiVO 4 /PVDF exhibited tremendous enhancement in the permeability (13,488.2 L m −2 h −1 ) and flux recovery efficiency (94.44 %). The free radical trapping tests and ESR spectra indicated that superoxide radical (·O 2 ⁻ ) was the dominant active species. In addition, the as-prepared C-g-C 3 N 4 /BiVO 4 /PVDF could easily recover and reuse, and photocatalytic activity basically remain unchanged, highlighting the potential application of membrane photocatalyst for the practical wastewater treatment.
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高影响因子
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
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2012
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IF 2.484
Da-Quan Sun,Ying Wang,Ding-Gan Liu
AU-rich elements are functional motifs in the 3′untranslated region of mRNA and are binding sites for the RNA binding protein HuR, an mRNA stabilizer and translation enhancer implicated in carcinogenesis. It is not clear whether, and, if so, how the AU-rich elements function in cells when they are separated from their mRNA and form an independent RNA species. Here, we show that a short RNA with AU-rich elements derived from C/EBPβ 3′UTR suppressed growth in a human liver cancer cell line. It specifically bound HuR, and it competed with C/EBPβ mRNA in order to bind to HuR. Our results provide evidence that the cancer cell growth suppression by this 62nt RNA containing AU-rich elements may be due to competitive binding to HuR. This work may open new options for the development of novel anti-cancer drugs.
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PubMed
高影响因子
MECHANISMS OF AGEING AND DEVELOPMENT
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2024
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IF 5.3
Zhen-Zhen Yu,Jia-Jun Tu,Mei-Ling Ou,Jin-Xiong Cen,Kun Xue,Shao-Jun Li,Jing Zhou,Guo-Dong Lu
Aging, a complex biological process influenced by genetic, environmental, and pharmacological factors, presents a significant challenge in understanding its underlying mechanisms. In this study, we explored the divergent impacts of metformin treatment on the lifespan and healthspan of young and old C. elegans , demonstrating a intriguing “elixir in youth, poison in elder” phenomenon. By scrutinizing the gene expression changes in response to metformin in young (day 1 of adulthood) and old (days 8) groups, we identified nhr-57 and C46G7.1 as potential modulators of age-specific responses. Notably, nhr-57 and C46G7.1 exhibit contrasting regulation patterns, being up-regulated in young worms but down-regulated in old counterparts following metformin treatment. Functional studies employing knockdown approaches targeting nhr-57 , a gene under the control of hif-1 with a documented protective function against pore-forming toxins in C. elegans , and C46G7.1 , unveiled their critical roles in modulating lifespan and healthspan, as well as in mediating the biphasic effects of metformin. Furthermore, deletion of hif-1 retarded the influence of metformin, implicating the involvement of hif-1 / nhr-57 in age-specific drug responses. These findings underscored the necessity of deciphering the mechanisms governing age-related susceptibility to pharmacological agents to tailor interventions for promoting successful aging.
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PubMed
高影响因子
Small
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2024
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IF 13
Ziyi Xu,Shihao Wang,Wenmao Tu,Ling Shen,Lu Wu,Shilong Xu,Haining Zhang,Hongfei Pan,Xiao-Yu Yang
Stable, efficient, and economical bifunctional electrocatalysts for oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) are needed for rechargeable Zn–air batteries. In this study, a directional electron transfer pathway is exploited in a spatial heterojunction of Co y Ni x @Fe─N─C heterogeneous catalyst for effective bifunctional electrolysis (OER/ORR). Thereinto, the Co/Ni alloy is strongly coupled to the Fe─N─C support through Co/Ni─N bonds. DFT calculations and experimental findings confirm that Co/Ni─N bonds play a bridging role in the directional electron transfer from Co/Ni alloy to the Fe─N─C support, increasing the content of pyridinic nitrogen in the ORR-active support. In addition, the discovered directional electron transfer mechanism enhances both the ORR/OER activity and the durability of the catalyst. The Co 0.66 Ni 0.34 @Fe─N─C with the optimal Ni/Co ratio exhibits satisfying bifunctional electrocatalytic performance, requiring an ORR half-wave potential of 0.90 V and an OER overpotential of 317 mV at 10 mA cm −2 in alkaline electrolytes. The assembled rechargeable zinc–air batteries (ZABs) incorporating Co 0.66 Ni 0.34 @Fe─N─C cathode exhibits a charge–discharge voltage gap comparable to the Pt/C||IrO 2 assembly and high robustness for over 60 h at 20 mA cm −2 .
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高影响因子
Arabian Journal of Chemistry
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2024
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IF 5.3
Yi Chen,Shasha Song,Yongfang Wang,Xiaoli Zhang,Jiafen Zhang,Lili Wu,Jianbing Wu,Xinyu Li
Psoriasis is a common chronic inflammatory skin disease, which has seriously affected human health. Berberine is a plant alkaloid with significant anti-inflammatory effect. In this study, we aimed to determine whether topical application of berberine could ameliorate skin inflammation in psoriasis and explore the potential molecular mechanism. Imiquimod (IMQ)-induced psoriasis-like dermatitis in mice was firstly used to reveal the potential pathogenic mechanism. The transcriptome analysis showed that Janus kinase (JAK)-Signal transducer and activator of transcription (STAT) signaling pathway was significantly enriched in IMQ-induced dermatitis, which included the key genes such as Janus kinase 1 (JAK1), Interleukin-2 (IL2), Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform (PIK3CA), Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit beta isoform (PIK3CB) and Signal transducer and activator of transcription 1 (STAT1). Network pharmacology and molecular docking then predicted that topical berberine may treat psoriasis by JAK-STAT signaling pathway, especially act on JAK1, IL2, PIK3CA and PIK3CB. Experimental studies in vivo further demonstrated that topical application of berberine could ameliorate IMQ-induced psoriasis-like skin inflammation by suppressing JAK-STAT signaling pathway. In addition, experimental studies in vitro showed that berberine could directly act on and enter into human immortalized keratinocytes (HaCaT cells). Meanwhile, berberine may inhibit the hyperproliferation and proinflammatory functions of HaCaT cells induced by Interferon-gamma (IFN-γ) via suppressing JAK1/STAT1 signaling pathway. In conclusion, this study suggested that berberine may be a promising topical agent to ameliorate skin inflammation in psoriasis.
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高影响因子
Nano Energy
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2024
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IF 16.8
Xinke Dai,Kaixuan Zhou,Long Zhang,Tianyu Wu,Hai-Mu Ye,Xia Cao,Yu Han,Guoyong Huang,Shengming Xu
High-temperature lithium-ion batteries (HLBs) are a crucial component in logging while drilling (LWD) equipment, facilitating the date acquisition, analysis, and transmission in myriametric deep formation. Conventional batteries are unable to guarantee a reliable power supply for LWD operations in extreme high-temperature conditions encountered at depths exceeding 10,000 m. Moreover, the development of dedicated batteries for these applications is progressing at a relatively slow pace. In light of these considerations, we put forth a novel proposal: a composite solid-state electrolyte (CSE) for HLB. Poly (ether ether ketone) (PEEK) nanofiber membranes, which are thermally stable at temperatures exceeding 350 °C, were prepared and subsequently composited with Li 7 La 3 Zr 2 O 12 (LLZO) by the vacuum filtration method. At room temperature, the PEEK-LLZO composite exhibits ionic conductivity of 1.11 mS·cm ⁻ 1 and demonstrates stability in lithium-lithium symmetric cells for up to 3500 h. The initial discharge specific capacity was recorded at 132.9 mAh·g ⁻ 1 at 0.5 C rate, declining to 86.6 % after 500 cycles. Density Functional Theory (DFT) simulations were employed to elucidate the lithium-ion transport mechanisms within the CSE system. It is noteworthy that the CSE displays remarkable thermal stability, with a performance threshold exceeding 300 °C. The ionic conductivity of the CSE system reaches 2.40 mS·cm ⁻ 1 at 250 °C, representing a twofold increase compared to the LLZO system and an elevenfold increase compared to the LiTFSI molten salt system. Moreover, the initial discharge specific capacity of the CSE was determined to be 123.3 mAh·g ⁻ 1 at 250 °C and a 1 C rate, retaining 92.8 % of its capacity after 50 cycles. These findings suggest that the CSE exhibits high safety, excellent cycling stability, and considerable potential for application in high-temperature lithium-ion batteries.
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CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Gang Li,Ruiyang Tan,Bohong Gao,Xinli Liu,Mingyuan Zhang,Ping Chen,Xinyi Wang
Developing advanced electromagnetic wave absorption (EMWA) materials is crucial for curbing electromagnetic pollution. This study presents the synthesis of core–shell Fe/Fe 3 O 4 /C composites, FFC-700 and FFC-800, derived from Prussian blue@covalent organic framework (PB@COF) via pyrolysis at 700 and 800 °C, and the hollow FFC-900 at 900 °C. Their chemical compositions, microstructures, and EMWA performances were thoroughly examined. FFC-700 and FFC-800, featuring core–shell structures and abundant interfaces, facilitate electron transfer and enhance polarization effects. Notably, FFC-700 achieved a minimum reflection loss (RL min ) of − 75.82 dB at an ultrathin thickness of 1.45 mm, with an effective absorption bandwidth (EAB) of 6.22 GHz at 1.66 mm, spanning the entire Ku-band. FFC-800 also provides substantial EMWA performance, with an RL min of − 30.14 dB at 1.61 mm and an EAB of 6.08 GHz at 1.67 mm, also covering the Ku-band. Radar cross-section (RCS) simulations reveal the absorbers’ exceptional radar stealth, with their coatings significantly reducing RCS values. The composites’ adjustable structure, balanced composition, and dielectric-magnetic synergy optimize impedance matching for full-Ku-band coverage. This work offers a promising approach to fabricating efficient EMWA materials from PBA@COF and MOF@COF precursors.
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GREEN CHEMISTRY
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2024
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IF 9.3
Qi Zhu,Bo Gong,Shuquan Huang,Yangxin Jin,Shengqin Liu,Shan Shao,Yuwei Yang,Taren Cataldo,Nicholas M. Bedford,Jason Chun-Ho Lam
The electrochemical selective oxidative transformation of lignin feedstocks into valuable oxygenated aromatics is essential to establish a sustainable biorefinery. In this study, we used a rhombohedral ZnIn2S4 (R-ZIS) electrocatalyst to realise the efficient anodic cleavage of C–O bonds in benzyl phenyl ether (BPE), an α-O-4 lignin model compound, to a series of industrially relevant oxygenated mono-aromatics. The reaction occurred at +2 VAg/AgCl, 65 °C, and atmospheric pressure. In optimised conditions, the reaction achieved over 99% conversion rate with a Faraday efficiency of 51.6% at 91.3% conversion of BPE, that is greater than most known electrocatalytic oxidative cleavage examples. The ZnIn2S4 electrocatalyst was deposited on a carbon cloth support, and its structural properties and surface morphology were extensively investigated. Systematic potential controlled electrolysis coupled with 18O isotopic labelling confirmed that C–O scission occurred exclusively between the benzylic carbon and phenolic oxygen. Furthermore, substrate competition studies were conducted to compare the electrocatalytic performance of the R-ZIS catalyst with that of its structural analogue, hexagonal ZnIn2S4, in terms of BPE and mono-aromatics conversion. The experimental results were supported by density functional theory calculations. The substrate scoping study revealed the suitability of the R-ZIS induced electrocatalytic system for a variety of substituted α-O-4/β-O-4 model dimers. Overall, this work demonstrates an efficient anodic process that can enable the atom-efficient valorisation of lignin to produce oxygenated aromatics. The proposed approach can complement the numerous existing reductive lignin cleavage methods.
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高影响因子
Cell Reports Physical Science
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2024
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IF 7.9
Qipeng Zhang,Rui Li,Jiewen Li,Yaonan Cai,Di Ma,Jiayu Yu,Shuai Li,Haodong Zhang,Shichao Zhang,Bohua Wen
There are many recent strategies using self-healing functionality to effectively address the chemo-mechanical interface evolution and extend battery performance. Revealing how the mechanical properties affect interface stability is important but challenging. Here, taking a self-healing Ga-interface-encapsulated Si/C as a model, we perform electrochemical atomic force microscopy to probe the mechanical properties of the shallow interface (<30 nm) upon cycling. Instead of bearing a high Young’s modulus, the Ga-Si/C interface exhibits distinctive plastic deformation and adhesion features related to the liquid-to-solid transition. In quantitative analysis using a plastic index, the Ga layer sustains a pronounced degree of plastic deformation, in sharp contrast to the neat Si/C. We also identify the maximum adhesion for liquid and semi-solid Ga, which forms a heterogeneous but continuous network. COMSOL modeling corroborates the plastic deformation and adhesion, effectively alleviating the local stress at the interface and accommodating the dynamic solid-electrolyte interface evolution.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2024
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IF 5.8
Shushu Li,Maozheng Li,Ruocheng Shen,Jianfang Lu,Xiaoyan Lv,Jing Su,Yanxuan Wen
K 3 V 3 (PO 4)4 (KVP), a novel cathode material for potassium-ion batteries (KIBs), is recognized for its stable crystal structure and robust cycling performance. Despite these attributes, it is hampered by poor electronic conductivity and limited rate capability. In this research, Fe 3+ has been substituted for a portion of V 3+ to modulate the electronic structure of K 3 V 3-x Fe x (PO 4 ) 4 /C, aimed at enhancing its electrochemical performance. Theoretical calculations expectedly show that Fe doping at the V site reduces the band gap energy from 2.674 eV to 1.92 eV, thereby improving electron transfer. Both physical and chemical analyses confirm the successful integration of Fe 3+ into the crystal structure and the adjustment of relevant lattice parameters. Additionally, Fe serves as an effective catalyst, enhancing the graphitization of the carbon coating. SEM demonstrates that Fe 3+ doping encourages the development of a porous structure, which not only promotes electrolyte penetration but also provides a buffer to the crystal framework during K + deintercalation. K 3 V 3-x Fe x (PO 4 ) 4 /C, when doped with Fe 3+ , shows superior discharge capacity and long-term cycling stability compared to KVP/C. Specifically, K 3 V 2.8 Fe 0.2 (PO 4 ) 4 /C, with an Fe 3+ doping level of x=0.2, exhibits minimal electrode polarization and outstanding rate performance. After 380 cycles at 400 mA·g −1 , it maintains a discharge capacity of 46 mAh·g −1 , significantly surpassing KVP/C. These findings offer valuable insights into the commercial synthesis of scalable, high-performance rechargeable KIBs cathode materials.
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高影响因子
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
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2024
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IF 6.9
Liusha Cen,Fan Yu,Shixue Liu,Chengcai Li,Wangyong Jin,Chenliang Wang,Hailin Zhu,Yuhai Guo
The technology that catalyst activated perxymosulfate (PMS) has been widely used in the decomposition of organic pollutants. We prepared Zn and Co-based ZIF and obtained C-doping Co 3 O 4 / ZnO heterojunction after pyrolysis. C-doping Co 3 O 4 / ZnO heterojunction with cage core-shell structure was loaded on the polyvinylidene fluoride (PVDF) membranes with a layered porous structure by solvent-assisted nanoparticle embedding (SANE) method, where the carmine degradation reached 99.6 % by MC-430 activated Perxymosulfate (PMS) within 10 min. The influencing factors (such as the pyrolysis temperature, PMS dosage, and dye concentration) on OFX degradation were observed, and MC-430 exhibited good tolerance for these factors and a wide range of solution hydrogen ion concentrations (pH= 4–10). The strong reusability and stability analysis showed that the carmine degradation of the MC-430/PMS system changed minorly (from 99.6 % to 97.7 %) in 5 consecutive cycles without any treatment. The degradation mechanism was confirmed by capture experiments, in which the non-free radical path was the main one and the free radical path was the auxiliary one. Moreover, structure characterizations and density functional theory calculations verified that doped C sites provided a channel for electron transfer from Zn sites to Co sites, which increased the generation rate of reactive oxygen species (ROS) and prolonged the catalyst life. This work provides a new method for the preparation of nonmetallic doping bimetallic strong coupling catalysis.
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高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
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2025
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IF 3.8
Jianning Zhang,Yanpei Dang,Tianhao Li,Yangzhong Zhao,Liantai Duan,Ke Chen,Xiao Zhang,Hengli Duan,Wensheng Yan,Sihua Feng,Gang Shao,Zhaoju Yu,Qing Huang,Yujie Song
Silicon boron carbonitride (SiBCN) ceramics have garnered significant attention due to their exceptional high-temperature stability, resistance to creep, and favorable electrical properties. However, the ceramicization mechanism of covalently bonded boron atoms in polyborosilazane (PBSN), which is crucial in determining the structural and crystalline phase evolution of silicon boron carbonitride (SiBCN) ceramics through the polymer-to-ceramic process, still needs further clarification for the design of advanced ceramics. Therefore, PBSN precursors constructed with B–C bonds were systematically investigated in the polymer-to-ceramic conversion process. B–C bonds were transformed into B-N bonds between 300°C and 600°C, ultimately resulting in the formation of h-BN at high temperatures. Meanwhile, higher levels (8.11–14.12%) of B facilitated the formation of SiC at equivalent temperatures but hindered the formation of Si 3 N 4 crystal nuclei. That is due to the formation of B–N and NB 3 units, which inhibited the formation of Si–N bonds and SiN 4 units, thereby interfering with the nucleation process of Si 3 N 4 and facilitating the crystallization of SiC. This study offers valuable insights for regulating the microphase evolution and properties of PDC nanocomposites.
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高影响因子
危险品化学品经营许可证（带存储）