CHEMISTRY OF MATERIALS
·
2021
·
IF 9.811
Runqing Liu,Hongping Wu,Hongwei Yu,Zhanggui Hu,Jiyang Wang,Yicheng Wu
KBe2BO3F2 (KBBF) is the sole nonlinear optical (NLO) crystal that can practically generate deep-ultraviolet (UV) coherent light by a direct second-harmonic generation (SHG) process. However, the toxic BeO and crystal layer habit limit its application. With this background, a new beryllium-free borate, K5Mg2La3(BO3)6 (KMLBO), has been designed and synthesized through a high-temperature solution method. KMLBO crystallizes into the noncentrosymmetric space group P31m (No. 157) and features a three-dimensional framework structure consisting of alveolate [LaBO3]∞ layers further tightly bound via interlayer [BO3]3– groups. KMLBO not only exhibits desirable performances including deep-UV transparency, large SHG (∼3.1 × KH2PO4), and phase-matchability but also overcomes the crystal layer habit of KBBF, demonstrating that it is a potential deep-UV NLO crystal.
研究领域:
材料科学
·
光学
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DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2021
·
IF 9.381
Lingyuan Wang,Lanfeng Hui,Weiyin Su
We prepared super-hydrophobic nanocellulose films using a non-toxic octadecylamine/polydopamine system. Octadecylamine, a low surface energy material, was used to provide hydrophobic alkyl long chains. Polydopamine was produced by dopamine under alkaline conditions, creating an adhesive substance, which reinforced the hydrophobic long chains and increased the surface roughness of nanocellulose. The effects of reagent concentration, reaction temperature, and reaction time on hydrophobicity were then investigated. The results showed that with a 1:1 mass ratio of nanocellulose to octadecylamine, and reacting at 60 °C for 4 h, the contact angle of the obtained composite membrane reached 168.2°. Scanning electron microscope images revealed that the modified nanocellulose had a smaller particle size and more uniform distribution, which effectively improved the hydrophobicity of the nanocellulose. Thus, the green preparation of superhydrophobic films with high-temperature resistance and wear resistance was realized, which contributed to the high-value utilization of nanocellulose.
研究领域:
材料科学
·
纳米技术
·
表面化学
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DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2020
·
IF 8.247
Xuelian Fu,Chaoqun Shang,Mingyang Yang,Eser Metin Akinoglu,Xin Wang,Guofu Zhou
Li metal anode is promising materials for high-energy-density Li metal batteries (LMBs) due to its large theoretical specific capacity and negative reduction potential. However, the poor safety and insufficient cyclability caused by the dendritic Li growth hinder the commercialization of LMBs. To alleviate the formation of Li dendrites and further improve the cycling stability of LMBs, an ion-conductive polyacrylonitrile (PAN)-based hybrid separator is proposed. The hybrid separator is composed of flexible PAN and high ionic conductive W-doped Li 6·3 La 3 Zr 1·65 W 0·35 O 12 (LLZWO) as the function of physical blocking to realize the Li dendrite-free. As a result, the hybrid separator with 20 wt% LLZWO (PLL-20) shows high ionic conductivity (6.89 × 10 −5 S cm −1 ) and high Li-ion transference number (0.58). The Li|PLL-20|Li symmetric cells exhibit long-term stability without Li dendrite growth at 0.2 mA cm −2 for over 350 h. Furthermore, the Li|PLL-20|LiFePO 4 battery delivers a high discharge specific capacity of 138.2 mAh g −1 at 0.2C under ambient conditions. This work highlights the ability of hybrid functional separators to protect Li metal anode in high-energy-density LMBs.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
Green Energy & Environment
·
2022
·
IF 12.781
Guoshen Yang,Gangrui Qu,Chi Fang,Jie Deng,Xianqi Xu,Yinghao Xie,Tian Sun,Yachao Zhu,Jiaxin Zheng,Hang Zhou
The recent advances in aqueous magnesium-ion hybrid supercapacitor (MHSC) have attracted great attention as it brings together the benefits of high energy density, high power density, and synchronously addresses cost and safety issues. However, the freeze of aqueous electrolytes discourages aqueous MHSC from operating at low-temperature conditions. Here, a low-concentration aqueous solution of 4 mol L −1 Mg(ClO 4 ) 2 is devised for its low freezing point (−67 °C) and ultra-high ionic conductivity (3.37 mS cm −1 at −50 °C). Both physical characterizations and computational simulations revealed that the Mg(ClO 4 ) 2 can effectively disrupt the original hydrogen bond network among water molecules via transmuting the electrolyte structure, thus yielding a low freezing point. Thus, the Mg(ClO 4 ) 2 electrolytes endue aqueous MHSC with a wider temperature operation range (−50 °C–25 °C) and a higher energy density of 103.9 Wh kg −1 at 3.68 kW kg −1 over commonly used magnesium salts (i.e., MgSO 4 and Mg(NO 3 ) 2 ) electrolytes. Furthermore, a quasi-solid-state MHSC based on polyacrylamide-based hydrogel electrolyte holds superior low-temperature performance, excellent flexibility, and high safety. This work pioneers a convenient, cheap, and eco-friendly tactic to procure low-temperature aqueous magnesium-ion energy storage device.
研究领域:
电化学
·
能源存储
·
材料科学
·
超级电容器
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DOI
高影响因子
WATER SCIENCE AND TECHNOLOGY
·
2018
·Vol. 77
·期 10
·2463-2473
·
IF 1.247
Li Yanyan,Li Mengjuan,Lu Jing,Li Xiaoqiang,Ge Mingqiao
Disperse Red 60 simulated polyester alcoholysis liquid decoloration by electro-Fenton with Fe 3 O 4 catalyst was studied. The influences of the main operating parameters such as catalyst dosage (0.3–0.9 g/L), current density (60–120 mA/cm 2 ) and pH (1–7) were optimized by response surface methodology (RSM) based on Box–Behnken surface statistical design (BBD). In optimal conditions, the initial concentration of 25 mg/L disperse red polyester alcoholysis liquid was catalyzed by 0.6 g/L Fe 3 O 4 , and the decoloration efficiency was 97.18% with the current density of 90 mA/cm 2 and initial pH of 4.6. There was a relative error of 1.18% with the predicted model when the predictive value was 98.25% under the same conditions. In addition, ultraviolet-visible absorption spectra (UV-Vis), Fourier transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA) were used to study the degradation mechanism during decoloration. The intermediates were identified and the proposed degradation pathways were investigated by liquid chromatography-mass spectrometry (LC-MS) analysis.
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DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2026
·
IF 6.1
Haoyuan Deng,Shan Li,Chunfei Bao,Daoyuan Zhao,Yubin Ding
Background Although sensor arrays are powerful for discriminating glycosaminoglycans, the construction of a sensor array is usually cost and labour inefficient. With the purpose to acquire a high dimensional response data using only a limited number of dyes, the rational assembly of fluorescent dye molecules may provide an alternative approach. We envision that co-assembling different dyes within a supramolecular structure can trigger multiple photophysical processes, which should produce high dimensional optical signals. Results A supramolecular AIEgen-porphyrin co-assembly is synthesized by assembling a negatively charged AIEgen ( TPE ) and meso-tetra(4-carboxyphenyl)porphine ( TCPP ) on the surface of a cationic polymer saying poly(diallyldimethylammonium chloride) ( PDDA ). With the co-assembly strategy, the aggregation-induced emission of TPE , the aggregation-caused quenching characteristic of TCPP , and especially, the Förster Resonance Energy Transfer efficiency from TPE to TCPP can be manipulated by a dynamic dye assembly approach. A sensor array is thus readily constructed by varying the loading ratio of TPE and TCPP on the surface of PDDA . Significance The sensor array is determined to be powerful for pattern recognition of various glycosaminoglycans even in 100% serum media through competitive compaction or removal of the aggregated TPE and TCPP dyes on the PDDA surface. It can be successfully applied for accurate and reliable detecting trace GAG analogues in Hep samples and identifying unknown GAG samples with an accuracy of 96.88%.
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产品关联
DOI
高影响因子
Gels
·
2026
·Vol. 12
·期 7
·630
·
IF 6.4
Yuan Li,Ziyu Chen,Shiyu Zhu,Yan Wei,Zhen Geng,Jianping Huang,Mengmeng Li
Osteoarthritis (OA) is a degenerative joint disease characterized by progressive loss of articular cartilage and an associated decline in its intrinsic mechanoelectrical signaling. Current osteoarthritis treatments relieve symptoms but fail to prevent cartilage degeneration or restore its native biophysical microenvironment. Here, we present an ultrasound-activated, mussel-inspired bio-adhesive hydrogel that addresses these challenges by recreating the cartilage’s piezoelectric cues in situ while achieving stable intra-articular retention under synovial conditions. The hydrogel, denoted SFHD-BT@PDA, consists of a silk fibroin (SF) matrix integrated with dopamine-functionalized hyaluronic acid (HADA) and embedded barium titanate nanoparticles coated with polydopamine (BT@PDA). This multi-level design imparts strong interfacial adhesion to wet cartilage (via catechol-mediated bonding to collagen) and piezoelectric sensitivity to external ultrasound. Under ultrasound stimulation, SFHD-BT@PDA generates localized electrical microcurrents that recruit endogenous MSCs via electrotaxis and subsequently promote their chondrogenic differentiation. In vitro, ultrasound-triggered electrical cues upregulated chondrogenic markers (SOX9, collagen II, aggrecan) in MSCs and activated TGF-β signaling, demonstrating restoration of the pro-anabolic bioelectric microenvironment. In a murine DMM model, the adhesive hydrogel exhibited prolonged retention on cartilage surfaces and, with ultrasound, induced robust cartilage regeneration and OA reversal. Treated joints showed preserved proteoglycan and Type II collagen content, inhibited osteophyte formation, and protection of subchondral bone microarchitecture. In summary, this mussel-inspired piezoelectric hydrogel provides an electromechanical stimulation platform that effectively couples physical cues with bio-adhesion to regenerate cartilage.
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产品关联
DOI
PubMed
高影响因子
Nature Communications
·
2026
·
IF 18.1
Yang Wendong,Liu Pei,Wang Linfeng,Jiang Hua,Zhang Shuangbin,Luo Bin,Long Xue,Zeng Yilin,Cai Xuan,Zhang Yifan,Gan Zuoxuan,Ke Huaiyu,Guo Jinhua,Duan Jiangjiang
Iron-chromium redox flow batteries are promising for long-duration energy storage owing to their safety, low cost, and environmental compatibility, but are limited by sluggish chromium(II/III) kinetics and parasitic hydrogen evolution in chromium-based negolytes. Here we re-engineer iron-chromium redox chemistry through chelation-driven molecular design using the strong-field ligand 2,2-Bis(hydroxymethyl)−2,2’,2”-nitrilotriethanol. The ligand reshapes the electronic configurations of iron and chromium centres and tunes their redox potentials, enabling an alkaline iron-chromium redox flow battery with rapid kinetics and suppressed hydrogen evolution. It stabilizes an octahedral hexacoordinate chromium chelate and unlocks an unconventional chromium(III/IV) couple at +0.34 V versus the standard hydrogen electrode, circumventing the Jahn-Teller effects associated with chromium(II/III). Paired with an iron-chelate negolyte based on the same ligand, the cell operates at 1.15 V within the aqueous stability window and remains stable over 500 cycles, achieving 99.0% coulombic efficiency and 75.8% energy efficiency at 100 mA cm −2 (80% of state-of-charge). Together with a projected raw-material cost of $17.02 kWh −1 and theoretical capacity of 68.07 Ah L −1 based on posolyte volume, this work establishes a scalable, cost-effective strategy for grid-scale energy storage.
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DOI
高影响因子
Cell Chemical Biology
·
2026
·
IF 9
Qingxuan Chen,Ancheng Shen,Xinyi Shi,Tailiang Lin,Qinghua Wang,Zhen Wang,Xuekui Yu,Buyong Ma,Chunyong Ding,Ao Zhang
Overactive stimulator of interferon gene (STING) signaling drives inflammatory and autoimmune diseases, making STING inhibition a promising therapeutic strategy. However, the complex binding mechanisms and limited structural diversity hinder the development of STING inhibitors. In this study, we identified a small-molecule STING inhibitor, Y-320, via cell-based screening. It binds STING with nanomolar affinity and potently inhibits STING-mediated interferon signaling in human and mouse cells. Mechanistically, Y-320 blocks the Golgi translocation and phosphorylation of STING, preventing interferon regulatory factor 3 (IRF3) recruitment. Notably, Y-320 allosterically targets the non-canonical transmembrane domain (TMD) pocket without competing with the endogenous agonist 2′3′-cGAMP by engaging residues Y46 and W119 in the transmembrane helices 2 and 4. Importantly, Y-320 alleviated cisplatin-induced acute kidney injury in mice in a STING-dependent manner. This work not only reveals an additional mechanism underlying the regulatory complexity of STING but also provides a TMD-targeted allosteric STING inhibitor with demonstrated efficacy in both in vitro and in vivo models.
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DOI
PubMed
高影响因子
MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Xiu Zhao,Hongyuan Guo,Zhuo Shi,Xiayu Song,Xuedong Jia,Xiaoyang Fu,Xuan Yu,Yingchun Zhu,Suozhu Wu
The AuNPs-poly(PBA)-poly(Arg)-based electrochemical sensor was developed. • It exhibited a wide detection range (1.00 pM–10.00 μM) for nitrite. • It displayed an ultra-low limit of detection (0.17 pM). • This sensor showed rapid response, high selectivity, and excellent reproducibility. Excessive intake of nitrite (NO 2 − ) poses a serious threat to human health, so it is significantly important to develop rapid and sensitive detection methods for NO 2 − . In this study, an electrochemical sensor was constructed based on a glassy carbon electrode modified with a composite material consisting of gold nanoparticles-poly(phenylboronic acid)-poly(arginine) (AuNPs-poly(PBA)-poly(Arg)), which was constructed via a one-step in-situ electrochemical co-deposition strategy. The detection of NO 2 − was achieved using an iodine/iodide (I 2 /I − ) probe system. Under the optimal conditions, the sensor exhibited a wide linear detection range for NO 2 − from 1.00 pM to 10.00 μM with a limit of detection as low as 0.17 pM. Moreover, the applicability of the developed sensor was successfully demonstrated by determining NO 2 − levels in beef and surface water samples, yielding satisfactory recovery rates between 89.70% and 107.33%. This study provided a novel and effective approach for monitoring NO 2 − in food and environmental samples. Download: Download high-res image (66KB) Download: Download full-size image
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DOI
高影响因子
ADVANCED MATERIALS
·
2026
·
IF 29.1
Guoqing Chen,Yunhao Hu,Zhouquan Sun,Yujie Lin,Shuhan Wang,Guoping Zeng,Xin Zhong,Yangyang Fan,Kerui Li,Yaogang Li,Qinghong Zhang,Chengyi Hou,Hongzhi Wang
Moisture-electric generators (MEGs) offer a promising route for clean energy harvesting. However, most existing MEGs suffer from low current densities due to limited ion concentration and migration rates, while often lack of capability for direct integration of wearable systems. Here, a moisture-electric yarn (MEY) featuring high current density and continuous power generation is designed. An ion pump strategy is introduced to facilitate the establishment of ion concentration gradients and enhance ion migration rates, enhancing electrical output. The MEY continuously generates ∼1 V and a high current density of 5.7 mA cm −3 at 25 °C and 60% RH, outperforming most reported MEGs. A scalable continuous fabrication process enables single-batch production of hundreds of meters of yarn. Owing to its yarn structure, the output current increases with length, reaching 4.3 mA for a 1 m yarn (∼0.1 g). Harvesting atmospheric and body moisture, a 2 m MEY can sustainably power LED strips. This lightweight and sewable yarn provides a safe and eco-friendly auxiliary power source for wearable electronics and real-time positioning applications.
✓ 已验证
DOI
PubMed
高影响因子
ENVIRONMENTAL SCIENCE & TECHNOLOGY
·
2026
·
IF 12.2
Yanting Qiu,Tao Qiu,Lulu Xu,Yuechen Liu,Ruiqi Man,Yiran Peng,Dapeng Liang,Zhijun Wu,Min Hu
Brown carbon (BrC) aerosols significantly contribute to global warming, yet their atmospheric aging remains poorly constrained. BrC photobleaching is considered a key process that reduces its radiative forcing. However, as the mass fraction of nitrate, which is also photochemically active, in aerosols increases, its impact on BrC photobleaching remains highly controversial. In this work, we demonstrated that nitrate photolysis effectively mitigates BrC photobleaching through a previously overlooked compensation mechanism. Combining high-resolution mass spectrometry, multivariate statistics, and quantum chemical calculations, we reveal that nitrate photolysis continuously generates light-absorbing N-containing compounds, predominantly nitrogen-aromatic conjugates, that offset absorption losses from photobleaching. Globally, neglecting this effect leads to a 1.0%–3.7% underestimation of BrC’s direct radiative effect, escalating to 2.4%–8.5% in nitrate-rich regions such as East Asia. Our findings establish nitrate photolysis as a crucial moderator of BrC’s atmospheric lifetime and warming potency, necessitating a reconsideration of BrC’s climatic role in anthropogenically influenced regions.
✓ 已验证
DOI
PubMed
高影响因子
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