ChemistrySelect
·
2025
·Vol. 10
·期 30
·e06084
·
IF 2
Jiajun Cheng,Kaixuan Teng,Yao Chen,Yunfan Chen,Xinyue Zhang,Guo Tang,Shaohua You,Long Wang,Sufang Guo,Qi An,Zeguo Feng
Graphical A ready-to-use collagen triboelectric nanogenerator (TENG) wound dressing system has been developed. The electric field generated by the TENG promotes the release of the analgesic drug from the collagen patch to achieve rapid pain relief. This system provides stable electrical stimulation output and its low cost and portability also offer an effective strategy for emergency on-site applications. Healing of exposed wounds is a key process in the repair of skin injuries and is crucial to prevent infection, maintain fluid balance, and promote tissue regeneration. Conventional dressings have been widely used; however, they are often inconvenient to use and have limited analgesic effects. In this work, we have developed a ready to use, disposable collagen-triboelectric nanogenerator (Col-TENG) wound protection dressing system. A porous collagen patch acts as a drug reservoir and a contact layer for the skin to protect the wound and remove traumatic contaminants. The frictional electrical field generated by TENG effectively promotes the release of analgesic lidocaine drug from the collagen patch. In vitro and in vivo experiments have shown that compared to conventional drug release systems, this novel friction-facilitated drug release device achieves faster and more drug release, as well as superior analgesia effects, which is promising in application of pain management in wild environments.
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ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Jiaqi Zhu,Guoli Zhang,Lu Lin,Tong Qiu,Wenchao Fu,Fengzhi Liu,Baihua Qu,Dianxiao Jiang,Xiaopeng Lu,Yu Song,Xiao-Xia Liu,Xiaoyuan Zhou,Xiaoqi Sun
Rechargeable Mg batteries have gained great interest thanks to the abundant resources and high theoretical capacity of Mg metal anode. However, it suffers from severe passivation and extremely poor plating/stripping kinetics. Herein, a simple salt electrolyte system of Mg(OTf) 2 /MgCl 2 -DME is studied, and the poor Mg affinities on typical metal current collectors are revealed as the key factor for rapid cell failure. Accordingly, an interphase modification on Cu current collector by the in situ generation of a magnesiophilic Cu-thiourea (CuTU) complex is presented. It provides active sites for solvated Mg 2+ as well as Mg. This not only homogenizes Mg 2+ flux but also helps with the release of solvated species to lower the desolvation barrier. The high affinity with Mg further enables the dense and uniform growth of Mg deposits. Thanks to these merits, the facile and reversible plating/stripping of Mg is realized. As a result, the symmetric cells with Mg pre-deposited on CuTU-Cu electrodes stably operate for over 2600 h, which is a 34-fold increase in comparison to the standard Mg foil. Full cells coupling the Mg-CuTU-Cu anode and a PDI-EDA cathode with an N/P ratio of 3 deliver a high capacity of 251 mAh g −1 as well as stable cycling.
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Journal of Inflammation Research
·
2025
·
IF 4.1
Qiaohui Ren,Xinyue Zhu,Nannan Wang,Kang Yu,Wei Lv,Lianzi Wang,Yan Zang,Dongyue Ma,Xinyi Zhou,Junxiao Yao,Mengjiao Shen,Li Yu,Tao Li
Purpose We explored the effects of miR-133a-5p and ATP7B on cuproptosis in hepatocellular carcinoma.Methods Initially, we assessed the impact of miR-133a-5p on hepatocellular carcinoma (HCC) using CCK-8 assays, cell scratch assays, and flow cytometry. Subsequently, we utilized elesclomol in combination with copper ions to induce cuproptosis in the HCC cell lines PLC/PRF/5 and Huh-7. We evaluated the influence of miR-133a-5p on cuproptosis using CCK-8 assays, cell scratch assays, flow cytometry, and Western blotting. To elucidate the underlying mechanisms, we employed bioinformatics to identify potential downstream target genes of miR-133a-5p and conducted dual-luciferase reporter assays to confirm the binding sites. Finally, we validated the regulatory effect of miR-133a-5p on ATP7B by modulating miR-133a-5p expression through cell transfection experiments.Results The results from the CCK-8 assay, cell scratch assay, and flow cytometry demonstrated that miR-133a-5p significantly inhibits the proliferation and migration of HCC cells while promoting their apoptosis. Furthermore, Elesclomol in combination with copper ions induces cuproptosis in HCC cells. Compared to the cuproptosis observed in HCC as a control, miR-133a-5p further suppresses the proliferation and migration of HCC cells, enhances their death, and increases the expression of cuproptosis-related proteins more prominently. Bioinformatics analysis suggested that ATP7B might be a downstream target gene of miR-133a-5p. This was confirmed by dual luciferase assays, which identified a binding site between miR-133a-5p and ATP7B. Additionally, the expression levels of ATP7B were found to decrease or increase in response to the regulation by miR-133a-5p.Conclusion MiR-133a-5p facilitates cuproptosis in hepatocellular carcinoma through targeting of ATP7B.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Tianran Hu,Yubo Hu,Yong Guo,Aikai Yang,Xiqing Chen,Xingchao Wang
Silicon oxide (SiO) possesses a high theoretical capacity (2680 mAh g −1 ) yet suffers low conductivity (≈6.7 × 10 −4 S·cm −1 ) and pronounced volume expansion (≈200%). Herein, we report a biomolecular-derived carbon coating strategy that simultaneously addresses the intrinsic limitations of SiO anodes. The abundant carboxyl ( COOH) and phenolic-OH groups in humic acid (HA) form strong covalent bonds with SiO particles, constructing a conductive carbonaceous network that dual-functionally suppresses volume expansion through mechanical confinement and enhances electron transport pathways. The HA-derived carbon shell expedites the formation of LiF-rich SEI film via in-situ reduction, reducing interfacial side reactions. Consequently, the SiO@HAC composite demonstrates a high initial coulombic efficiency (ICE) of 83%, exceptional cycling stability (860 mAh g −1 capacity retention after 600 cycles at 500 mA g −1 ), and superior rate performance. When paired with NCM811 cathode, the full battery achieves a reversible capacity of 141 mAh g −1 at 100 mA g −1 , with a capacity retention of 82% after 200 cycles. These findings highlight the strategic advantages of HA-derived carbon shells in advancing high-loading silicon-based anodes toward practical applications in lithium-ion batteries (LIBs).
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ChemistrySelect
·
2025
·Vol. 10
·期 9
·e202405355
·
IF 2
Shaogang Zhang,Xiaolong Ma,Xin Min,Xiaoguang Zhang,Jinhong Li
Graphical A series of EV-CaCl2·6H2O composite PCMs were prepared. SrCl2·6H2O and copper nanoparticles affect the supercooling and thermal conductivity of EV-CaCl2·6H2O composite PCMs, respectively. The non-isothermal melt crystallization process and crystallization activation energy were studied. Solid-liquid phase change materials (PCMs) made from calcium chloride hexahydrate (CaCl 2 ·6H 2 O) offer benefits such as significant latent heat during phase change, high heat storage efficiency, low preparation costs, a nearly constant temperature exothermic process, and environmentally friendly attributes. However, they also face challenges like poor thermal conductivity, susceptibility to leakage, supercooling, and phase separation. The melt impregnation method prepared shape-stable composite PCMs using expanded vermiculite (EV) and CaCl 2 ·6H 2 O as raw materials. The layered pore structure of EV can be used as an encapsulation matrix to prevent the leakage of the CaCl 2 ·6H 2 O liquid phase. Adding 1 wt% strontium chloride hexahydrate (SrCl 2 ·6H 2 O) nucleating agent and 3 wt% copper nanoparticle thermal conductivity enhancer can reduce the supercooling by 8 °C and increase the thermal conductivity by 0.2092 W/(m·K). The kinetic equation effectively describes the non-isothermal melt crystallization process. An increase in the cooling rate creates a thermal hysteresis effect on melt crystallization; the faster the cooling rate, the lower the temperature at which crystallization begins and the shorter the duration required for crystallization to complete. Both SrCl 2 ·6H 2 O and copper nanoparticles can reduce the crystallization activation energy, which is the essential reason for lowering the supercooling of CaCl 2 ·6H 2 O.
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2025
·
IF 8.3
Qingrong Long,Chaoyang Shi,Dawei Zhang,Danyang Wei,Haoqi Li,Linxiang Zhou,Hanyu Tan,Jie Yu,Mingli Xu
The frequently used chloroplatinic acid or other Pt precursors containing Cl element during the preparation process of Pt-based catalysts lead to catalyst poisoning and instability. In this work, a chlorine-free PtCu(N)/C R-F catalyst with a hollow sphere structure was successfully synthesized by employing [Pt(NH 3 ) 4 ](OH) 2 and [Cu(NH 3 ) 4 ](OH) 2 as the chlorine-free metal precursors, which using the strong electrostatic adsorption (SEA) between positively charged metal precursor ions and the negatively charged oxygen-containing functional groups (OCFGs) on the carbon support (C R-F ) and combined with the impregnation reduction method. Compared to commercial Pt/C, the experimental results show that the PtCu(N)/C R-F catalyst, displays better ORR performance under acidic condition, the onset and half-wave potentials are 0.961 V (vs. RHE) and 0.827 V (vs. RHE), respectively. Furthermore, it also shows a significant performance advantage in a gas diffusion electrode (GDE) half-cell. Density-functional theory (DFT) calculations show that the introduction of Cu has adjusted the electronic structure of Pt, weakened the adsorption of oxygen-containing intermediates, and ultimately enhanced the catalytic activity and stability of ORR. This work presents a simple and efficient method for preparing chlorine-free Pt-based catalysts.
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高影响因子
ELECTROCHIMICA ACTA
·
2025
·
IF 5.6
Yuda Lin,Kaihui Lin,Xiaohui Xu,Junjie Chen
In this paper, a new composites material Zn 3 V 3 O 8 /VO 2 @Nitrogen graphene (ZnVO/VO 2 @NG) was synthesized, and its structural features and electrochemical properties were systematically characterized. The electrochemical analysis reveals that the electrode exhibits fast electron/lithium ion transport kinetics, and its pseudocapacitive behavior storage characteristics can achieve ultra-fast dynamic response. The ZnVO/VO 2 @NG electrode maintains a high reversible specific capacity of 995 mAh g -1 after 700 cycles at 1 A g -1 , and an impressive rate capability of 540 mAh -1 at 5 A g -1 . In addition, first-principles calculation reveals that ZnVO/VO 2 @NG exhibits zero-bandgap metallic properties with excellent electrical conductivity. Meanwhile, differential charge density and adsorption energy calculations further demonstrates that Li-ions at the interface of ZnVO and NG have a charge transfer as high as 1.71 eV, and a corresponding adsorption energy of -5.46 eV, which suggests the existence of strong lithium interactions at this interface. These findings provide an important theoretical basis for a deeper understanding of the lithium ion storage properties at the heterogeneous interface.
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高影响因子
Journal of Materials Chemistry C
·
2024
·Vol. 12
·期 37
·14858-14864
·
IF 5.7
Qiang Liu,Jingnan Wang,Kaiheng Zhao,Yongan Yang,Xi Wang
Due to their well-defined geometric and electronic structures and fully exposed active sites, single-atom catalysts (SACs) exhibit significantly enhanced catalytic activity in the field of catalysis. However, the controllable synthesis of SACs, particularly in a simple and scalable manner, presents formidable challenges. Here, we report the general synthesis of SACs containing Co, Ni, Cu, and Zn using a direct impregnation method. Atomically dispersed transition metal atoms over zeolite supports are confirmed by integrated differential phase contrast scanning transmission electron microscopy (iDPC-STEM) and extended X-ray absorption fine structure (EXAFS) spectroscopy. Detailed studies reveal that the dispersion process originates from the trapping of metal atoms by silane nests. Notably, the Co-SAC catalyst demonstrated superior catalytic performance in the industrially significant propane dehydrogenation reaction. This synthetic strategy is straightforward and amenable to large-scale production of thermally stable SACs for industrial applications.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Xinbo Wang,Hao Qiu,Yu Wang,Cong Yu,Pengcheng Ma,Xinning Liu,Yanwei Li,Zhaojie Cui,Bin Shan,Ben Hang Yin
Silver ions (Ag + ) in waterways pose a growing threat to the environment and living organisms. Achieving an effective and green process for Ag + removal requires an adsorbent with excellent specificity for silver ions and easy recoverability after fouling or blocking. However, this remains a major challenge. To address this concern, we developed a high-performance adsorbent by grafting polymers of intrinsic microporosity (PIM) with thioamide groups. This thioamide-modified PIM (TPIM-1) adsorbent exhibited an exceptional adsorption capacity of 656 mg g −1 and high selectivity (distribution coefficient of 833.3 mL g −1 , selectivity coefficient of 346 over Cd 2+ ) for aqueous Ag + removal. TPIM-1 also features good solubility in selected solvents, allowing regeneration through a dissolution separation precipitation (DSP) procedure once fouling or blocking occurs. Over 80 % of the adsorption capacity was recovered after nine continuous regeneration cycles, showcasing potential cost-effective reusability. Density Functional Theory (DFT) results reveal that the grafted thioamide groups play a critical role in selective Ag + adsorption, with a binding energy of 54 kcal mol −1 . In addition, the Ag + -loaded PIM-coated glass surface showed excellent antibacterial ability, inhibiting the growth of Bacillus subtilis and E. coli. This study provides a viable strategy for the development of a low-carbon footprint silver removing adsorbent from wastewater.
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ANALYTICAL CHEMISTRY
·
2025
·
IF 6.7
Jiayue Zhou,Dongmei Li,Ziwei Chen,Tiantian Li,Ying Liu,Jie Nan,Linyuan Wang,Yinuo Chen,Guanggui Yu,Na Sai
Inspired by the color patterns of blue-winged teals’ feathers, a new biomimetic imprinting (IM) probe with chemical fluorescent (CF) color and physical structural (PS) color was developed for the label-free and ratiometric detection of levofloxacin (LOF). The probe is defined by a periodic photonic crystal structure formed by monodisperse imprinting microspheres that incorporate LOF-binding nanocavities, similar to the color emission structure of teals. With the increase of the LOF solution, the probe can selectively bind LOF molecules and demonstrate a two-color response without the use of labels: the CF color emerged from the entering of CF color-emissive LOF molecules, further enhanced by the Purcell effect, while the PS color resulted from the periodic photonic crystal structure. As the concentration of LOF increases, the CF color becomes brighter (turn on), while the PS color becomes darker (turn off). These color changes are perceptible to the naked eye. The probe demonstrated label-free, sensitive (down to 2.77 nmol/L), rapid (10 min), selective, and stable detection of the LOF, utilizing a self-correction function of colors. In addition, the probe was successfully applied in real sample detection.
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高影响因子
Solar RRL
·
2025
·
IF 4.7
Xiaoxiao Huang,Jianguo Duan,Qihui Yu,Qing Ma
Graphene composite phase change materials (PCMs) show great application potential in solar energy conversion and storage due to their strong light absorption and high thermal conductivity. To further enhance the photothermal conversion and leakage prevention performance of graphene composite PCMs. This article adopts a “point-surface” modification strategy. Through a hydrothermal reduction self-assembly method, nanocopper particles are doped into polyvinyl alcohol (PVA) cross-linked graphene nanosheets to construct a novel graphene nanosheet-nanosized Cu particle/polyethylene glycol (PEG) composite PCMs. The random distribution of nanocopper particles significantly enhances the spectrum absorption capacity and interfacial heat transfer efficiency of the graphene skeleton. The results show that the thermal conductivity of PEG/PG–Cu 0.06 reaches 0.793 W/m −1 k −1 , which is 317.4% of pure PEG. Its latent heat enthalpy value reaches 185.7 J g −1 , and the enthalpy value attenuation rate after 200 thermal cycles is less than 0.21%. Moreover, when the simulated light intensity was 120 mW cm −2 , the PEG/PG–Cu 0.06 photothermal conversion efficiency is 86.2%. Meanwhile, the cross-linked network formed by PVA and graphene can effectively inhibit PEG leakage, and the leakage rate of PEG/PG–Cu 0.06 is 21.6%. Additionally, the 3D graphene-PVA matrix modified by nano-Cu particles is used to improve the thermal conductivity and the spectrum adsorption capacity of composite PCMs, which have excellent photothermal conversion performance and thermal stability and have great application prospects in solar energy heat storage.
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ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2024
·Vol. 31
·期 20
·30256-30268
·
IF 0
Li Qi,Tan Liju,Wang Jiangtao
There are many studies on the toxic effects of single nanoparticles on microalgae; however, many types of nanoparticles are present in the ocean, and more studies on the combined toxic effects of multiple nanoparticles on microalgae are needed. The single and combined toxic effects of nCu and nSiO 2 on Dunaliella salina were investigated through changes in instantaneous fluorescence rate (Ft) and antioxidant parameters during 96-h growth inhibition tests. It was found that the toxic effect of nCu on D. salina was greater than that of nSiO 2 , and both showed time and were dose-dependent with the greatest growth inhibition at 96 h. A total of 0.5 mg/L nCu somewhat promoted the growth of microalgae, but 4.5 and 5.5 mg/L nCu showed negative growth effects on microalgae. The Ft of D. salina was also inhibited by increasing concentrations of nanoparticles and exposure time. nCu suppressed the synthesis of TP and elevated the MDA content of D. salina , which indicated the lipid peroxidation of algal cells. The activities of SOD and CAT showed a trend of increasing and then decreasing with the increase of nCu concentration, suggesting that the enzyme activity first increased and then decreased. The toxic effect of a high concentration of nCu was reduced after the addition of nSiO 2 . SEM and EDS images showed that nSiO 2 could adsorb nCu in seawater. nSiO 2 also adsorbed Cu 2+ in the cultures, thus reducing the toxic effect of nCu on D. salina to a certain extent. TEM image was used to observe the morphology of algal cells exposed to nCu.
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