Small
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2026
·
IF 12.1
Zhong Xiao,Yijun Gao,Shanshan Song,Fei He,Zhenbo Yang,Yingfan Guo,Zhiliang Liu,Lei Li
Silicon-based materials possess a theoretical specific capacity of 4200 mAh g −1 , making them an ideal anode material for current high-energy-density lithium-ion batteries. However, their significant volume expansion (>300%) and inherently poor electrical conductivity limit their large-scale application. In this study, an innovative synergistic design approach was employed to propose a nickel (Ni)-doped hollow carbon-coated silicon composite material (Ni/HSi@C). This material integrates structural engineering with a carbon layer coating the hollow silicon structure, thereby facilitating volume changes toward internal expansion. Additionally, phase state regulation and interface optimization were integrated, with Ni-doping introduced to promote the formation of amorphous silicon while inducing the formation of a stable solid electrolyte interface film rich in LiF during charge–discharge cycles, thereby achieving synergistic optimization. Experimental results indicate that after 1000 cycles at a current density of 1000 mA g −1 , the specific capacity of Ni/HSi@C remains at 1318 mAh g −1 . Furthermore, the pouch cell achieves an energy density of 379 Wh kg −1 . In situ impedance and distribution of relaxation times analysis demonstrate that Ni-doping significantly reduces interfacial impedance and suppresses electrolyte decomposition.
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Small
·
2026
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IF 12.1
Jia Liang,Ye Zeng,Hai Huang,Dingrong Deng,Guifang Li,Xiaohong Fan,Mingming Tao,Binbin Wei,Zhengbing Qi,Hanfeng Liang,Qihui Wu
Surface reconstruction of electrocatalysts induces structural evolution, which critically creates favorable conditions for in situ directional modulation of electrocatalytic species and thus enhances the catalytic activity. The development of CoMoO 4 -based electrocatalysts for hydrogen evolution reaction (HER) is hindered by insufficient active sites and sluggish reaction kinetics of reconstructed cobalt species. Herein, we rationally designed a CoMoO 4 pre-catalyst loaded on ZnO nanorods, where synergistic structural evolution between ZnO and CoMoO 4 is achieved: continuous ZnO dissolution couples with CoMoO 4 structural evolution, driving Zn incorporation into in-situ generated Co(OH) 2 species. The reconstructed electrocatalyst with Zn-doped Co(OH) 2 as catalytic species can exhibit a low HER overpotential of 40 mV at 10 mA cm − 2 , and maintain an overpotential of 65 mV at 10 mA cm − 2 in simulative seawater electrolyte. Meanwhile, the anion exchange membrane (AEM) electrolyzer with the reconstructed ZnO@CoMoO 4 electrode can exhibit excellent durability, maintaining electrocatalytic performance for 650 h (water electrolysis) and 1000 h (seawater electrolysis). Density functional theoretical (DFT) calculations demonstrate that the Zn dopants in the reconstructed species effectively enhance the HER energetics and mitigate Cl − -induced corrosion during the seawater electrolysis. This work provides fresh insights into the enhancement of the HER activity of reconstructed electrocatalysts based on the structural co-evolution mechanism.
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POLYMER BULLETIN
·
2026
·Vol. 83
·期 5
·215
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IF 4
Wang Song,Ma Rumeng
Coating polyethylene terephthalate (PET) fabrics by flame-retardant polyacrylate (PAc) is considered as a convenient and efficient method for improving the flame retardancy of PET fabrics. In this study, melamine (MEL) was reacted with phytic acid (PA), leading to the successful synthesis of a PA-based flame retardant, MP. Subsequently, aluminum diethylphosphinate (ADP) and MP were compounded at a mass ratio of 18:2 and incorporated into the PAc coating to prepare a flame-retardant PAc coating. When this flame-retardant PAc coating was coated to the surface of PET fabric, PET-ADP-MP 18:2 was obtained. The PET-ADP-MP 18:2 fabric exhibited excellent flame-retardant performance, achieved fire rating B 1 in the Vertical flammability test (VFT), with a limiting oxygen index (LOI) of 26.3%. Compared to the untreated PET fabric, the peak heat release rate (PHRR) was reduced by 70.81%. Moreover, the mechanical properties of PET-ADP-MP 18:2 were also improved. The tensile strength in the warp direction increased by 41.7%, while that in the weft direction increased by 57.7%. The flame retardant obtained by the combination of ADP and MP is therefore considered to hold significant potential for application in the field of flame-retardant PET fabrics (FR-PETs).
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JOURNAL OF MATERIALS SCIENCE
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2026
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IF 3.9
Yang Xue,Zhang Likang,Lu Biao,Yin Zhifu,Liu Zongming,Ding Ao
Heavy metal ions (HMIs) pollution poses severe threats to ecological integrity and human health, necessitating the development of sensitive, cost-effective, and matrix-adaptable detection technologies. Carbon quantum dots (CQDs) and their composites have emerged as promising candidates for HMI detection, owing to their exceptional optical properties, high stability, and excellent biocompatibility. In this study, we report a facile, cost-effective, and green synthesis route for the fabrication of red-emitting (R-CQDs) and green-emitting (G-CQDs) carbon quantum dots. These materials were systematically evaluated for the sensitive and selective detection of Hg 2+ , Ag + , and Cu 2+ ions in both aqueous and saliva samples, thereby addressing critical needs in environmental monitoring and non-invasive health assessment. The detection performance was quantified using both ultraviolet–visible (UV–Vis) absorption spectroscopy and fluorescence (FL) spectroscopy. UV–Vis spectroscopy measurements revealed a limit of detection (LOD) of 50 nmol/L for Hg 2+ at 235 nm (using G-CQDs), 100 nmol/L for Ag + at 226 nm (using G-CQDs), and 5 nmol/L for Cu 2+ at 215 nm (using R-CQDs). Fluorescence spectroscopy further demonstrated LODs of 250 nmol/L for Hg 2+ and 5 µmol/L for Ag + (both at an excitation wavelength of 480 nm using G-CQDs), and 0.5 µmol/L for Cu 2+ at an excitation wavelength of 427 nm (using R-CQDs). Collectively, our findings demonstrate that the as-synthesized R-CQDs and G-CQDs exhibit high sensitivity and selectivity toward target HMIs. Their successful application in real water and saliva samples underscores their significant potential for practical environmental monitoring and personal health screening.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.7
Weilong Shao,Delai Jiao,Shanzhe Li,Biao Lu,Bo Liu,Chunling Zhang,Feifei Zhang
Lithium‑sulfur batteries (LSBs) have attracted significant attention as promising energy storage and power sources due to their exceptionally high energy density (2600 Wh kg −1 ) and the low cost of active sulfur materials. However, their practical deployment is hindered by the severe polysulfide shuttle effect and the poor thermal stability of commercial polypropylene (PP) separators, which tend to shrink at elevated temperatures and cause internal short circuits. In this study, a flame-retardant and lithium polysulfides (LiPSs)-anchoring material (SiO 2 @PD) is synthesized and coated onto PP separators (SiO 2 @PD/PP) via a simple slurry-coating method. The synergistic LiPSs adsorption arises from strong interactions between the phosphorus‑oxygen double bonds (P=O) and hydroxyl groups (-OH) of PD and the Si–O–Si bonds of SiO 2 , effectively suppressing the LiPSs shuttle effect and facilitating Li + transport. Moreover, the release of phosphorus species from PD at elevated temperatures, together with the thermal barrier provided by SiO 2 , significantly enhances flame retardancy and ensures structural integrity under high-temperature operation. Benefiting from these combined effects, LSBs employing SiO 2 @PD/PP separators deliver exceptionally low capacity decay rate of 0.027% per cycle over 1000 cycles at 2.5C, and exhibit excellent thermal resilience, retaining 730.32 mA h g −1 after 100 cycles at 60 °C. This work provides a practical and scalable strategy for designing multifunctional separators toward high-performance and intrinsically safe LSBs.
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POLYMER
·
2026
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IF 4.5
Jian Guan,Mengsen Niu,Zhangming Wang,Wujian Zhang,Zongjian Liu,Aiming Chen,Shengjie Xia,Panpan Zhang,Haodong Tang
Ultrahigh molecular weight (UHMW) polymers, as high-performance materials, have great potential applications in many aspects. However, the synthesis of UHMW poly (vinylidene fluoride) (PVDF) remains challenging. To achieve the synthesis of UHMW polymers, we developed a novel route to synthesize UHMW PVDF successfully and then investigated the effects of varying conditions and reactants on molecular weight and dispersity ( Đ ). The combination of Ag nanoparticles (Ag NPs) and trichloroacetic acid (TCA) represented a highly effective system for initiating the emulsion polymerization of vinylidene fluoride (VDF). Under pressures up to 70 bar, the PVDF with a number-average molecular weight up to 1.72 × 10 6 Da ( Ð = 1.62) was obtained in the presence of 28.5 ppm Ag NPs at 50 °C. Systematic investigation revealed that the molecular weight and distribution were significantly influenced by the composition of the initiating system, reaction temperature, and surfactant concentration. Preliminary investigation of the mechanism revealed that emulsion polymerization of VDF was initiated by carbon radicals generated from the reaction of Ag NPs and TCA. Furthermore, the separation of radicals in different polymer particles decreases the probability of bimolecular termination, thereby leading to an increase in the molecular weight of polymers. The synthesis of UHMW PVDF using metal nanoparticles and halogenated acids provides significant insights for future development of high-performance fluorinated polymers.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 2
·121282
·
IF 7.2
Zijian Zhang,Bonan Liu,Li Yang,Jingwen Wang,Yuqing Dong,Chao Tang,Ping Wang,Haijiao Xie,Lei Zhang,Lu Zhang,Jun Zhao,Yu Fan,Wangjing Ma
Polystyrene (PS) waste recycling remains a critical challenge due to its high energy consumption and limited monomer yield. Herein, the b-ZnO catalyst with a few in-situ formed Zn sites at 270 °C under microwaves enhances the depolymerization of PS waste into monomers. To further improve the PS depolymerization over the b-ZnO catalyst, a series of Zn/b-ZnO catalysts with different metal Zn contents were prepared. Among these catalysts, the optimal 5Zn/b-ZnO achieves nearly 100 wt% PS conversion, yielding up to 0.997 g −1 PS liquid products with 0.8 g −1 PS styrene monomer in five cycles of experiment under microwaves. Such process greatly reduces the energy cost as compared with the conventional thermal process (0.51 vs. 0.81 kWh) and the obtained styrene monomer mixture can be repolymerized into fresh PS to complete a closed-loop recovery (80 wt% PS waste recycled). This work builds a novel microwave-assisted Zn/b-ZnO catalyst system for depolymerizing PS waste into monomers in a highly efficient way, which sheds a light on the sustainable recovery of PS waste.
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RSC Advances
·
2026
·Vol. 16
·期 4
·3409
·
IF 4.6
Ya Huang,Yanwen Zhuang,Miao Zhu,Yangfan Zhou,Miaowen Xu,Zixun Wang,Jingwen Zhu,Jinxin Sheng
Early identification and timely intervention of precancerous lesions of gastric cancer are the core strategies to block their malignant transformation into gastric cancer (GC). This study developed a dual functional sensor that combined surface-enhanced Raman scattering (SERS) activity and nanoenzyme catalytic properties. The sensor was driven by catalytic hairpin self-assembly (CHA) technology triggered by the target microRNA-21 (miR-21), promoting the conversion of 3,3′,5,5′-tetramethylbenzidine (TMB) and signal amplification of TMB oxidation (ox-TMB). This work used Au–platinum nanoparticles (Au–Pt NPs) as nanozyme probes and silica-encapsulated ferrite (Fe 3 O 4 @SiO 2 ) as capture probes. In the presence of target miR-21, CHA technology induced Au–Pt NPs to assemble on the Fe 3 O 4 @SiO 2 surface, endowing the sensor with SERS enhancement capability and peroxidase-like (POD-like) simulated catalytic performance. This catalyzed the conversion of TMB and hydrogen peroxide (H 2 O 2 ) into the oxidized product ox-TMB with characteristic absorption. CHA technology, acting as an intrinsic driving force for sensor assembly, further facilitated exponential amplification of the ox-TMB detection signal. This SERS sensor demonstrated outstanding detection performance, achieving a detection limit as low as 20.24 aM for miR-21. It also exhibited excellent clinical applicability and accuracy in clinical sample testing. Therefore, the proposed SERS sensor holds significant clinical potential for diagnosing gastric precancerous lesions. Early identification and timely intervention of precancerous lesions of gastric cancer are the core strategies to block their malignant transformation into gastric cancer (GC).
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RARE METALS
·
2026
·
IF 11
Hao Liang,Yu Liang,Rubiao Qiu,Kunpeng Duan,Jiaxiao Li,Yan Liu,Xiaowen Li,Li Wang,Lingling Liang,Mingyang Jiang,Chenxi Wang,Guojiang Chen,Ming Gao,Xiaojie Li,Tao Qin
en Periodontitis is a chronic infectious oral disease triggered by periodontopathogenic bacteria, resulting in the progressive inflammation and destruction of the tissues surrounding teeth. To achieve reprogramming of the infectious microenvironment for periodontitis therapy, a nanoformulation was proposed by loading polydopamine (PDA) with ultrasmall strontium through in situ reduction and arginine by Michael addition, defined as PA. Combined with near infrared (NIR) irradiation, it could efficiently scavenge reactive oxygen species (ROS), and downregulate inflammatory factors expression through inhibiting NF-κB pathway. In addition, it also confirmed the effective bacteria killing in NIR stimulated PA by photothermal effects and nitric oxide (NO) generation. Significantly, PA + NIR was also verified to promote alveolar bone tissue repair through strontium ions (Sr 2+ ) and NO induced angiogenesis, together with Sr 2+ mediated osteogenesis. The administration strategy was finally verified to alleviate the oxidative stress derived inflammation, suppress bacterial growth and biofilm formation, as well as promote bone regeneration with high efficacy and biosafety in the periodontitis rat models. All the above findings contributed to the NIR enhanced synergistic treatment of periodontitis, and it may serve as a promising strategy for the treatment of other inflammation related diseases. 摘要 zh 牙周炎是由牙周病原菌引发的慢性感染口腔疾病,导致牙齿周围组织形成炎症和发生损坏。为了重塑感染微环境实现牙周炎治疗,在聚多巴胺(PDA)通过原位还原负载超小锶,以及通过迈克尔加成负载精氨酸,得到一种纳米制剂,命名为为PA。结合近红外(NIR)照射,它能有效清除活性氧(ROS),以及通过抑制 NF-κB通路下调炎症因子表达。此外,还证实PA + NIR通过光热效应和一氧化氮(NO)生成有效杀灭细菌。更重要的是, PA + NIR 还通过锶离子(Sr 2+ )和NO诱导血管生成以及Sr 2+ 介导的促成骨,促进牙槽骨组织修复。最后证明该给药策略可减轻由氧化应激引起炎症,抑制细菌生长和生物膜形成,并促进骨再生。上述所有发现都有助于实现近红外增强牙周炎协同增效治疗,并可能为其他炎症相关疾病治疗提供有前景策略。
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LANGMUIR
·
2026
·
IF 3.9
Kefeng Wang,Jingtao Hu,Yutong Chen,Zhitao Yin,Jian Chao,Yan Xu
The uncontrollable drug release rate and insufficient mechanical properties of aerogel scaffolds posed key challenges for their application in bone tissue engineering. This study proposed a multifunctional smart aerogel scaffold integrating electrospinning and direct ink writing (DIW) technology, combining sustained drug release with external magnetic field stimulation. Rifampicin-loaded PLA/PCL electrospun short fibers were embedded within the aerogel matrix, constructing a (n-HA/CNFs/PVA/Fe3O4@SF) composite aerogel scaffold with microarchitectural features mimicking the extracellular matrix and controlled drug release functionality. The incorporation of short fibers significantly mitigated rifampicin release rates while substantially enhancing the mechanical properties of the aerogel scaffold. Furthermore, under non-contact alternating magnetic field stimulation, the scaffold maintained a localized temperature of 42 °C, enabling on-demand accelerated drug release and localized magnetotherapeutic effects, thereby overcoming the limitations of traditional drug delivery systems. By integration of macro-scale precision 3D-printing technology, microscale electrospinning structure construction, short-fiber sustained-release mechanisms, and dynamic alternating magnetic field regulation, this composite scaffold offered a novel strategy for intelligent, precision treatment of bone tuberculosis (BTB).
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JOURNAL OF CHROMATOGRAPHY A
·
2026
·
IF 4
Shuo Wang,Yiming Gu,Jin Zhou,Shudong Wang
In modern liquid chromatography, versatile mixed-mode stationary phases have emerged as a practical choice for complex separations. Glucamine is promising in this field due to its distinctive amino-substituted glucose structure. This work presents a novel alkyl glucamine-based stationary phase (SIL–GNOGA) prepared via an epoxide-amine ring-opening reaction and immobilized onto silica surfaces. The morphology and composition of the stationary phase were characterized by multiple analytical techniques. Its retention mechanism was systematically investigated using analytes with diverse properties under varied chromatographic conditions. Furthermore, the separation performance of SIL–GNOGA was assessed and compared against its alkylamine- and glucamine-based counterparts. The stationary phase demonstrated excellent versatility, enabling efficient separation of hydrophilic, hydrophobic, as well as amphiphilic analytes in hydrophilic interaction or reversed-phase mode, depending on their molecular characteristics. Notably, complex mixtures were successfully resolved in both modes through the synergistic effects of hydrophilic, hydrophobic, hydrogen-bonding, and electrostatic interactions. This mixed-mode capability highlights SIL–GNOGA’s broad selectivity and potential across diverse chromatographic applications.
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FOOD RESEARCH INTERNATIONAL
·
2026
·
IF 8
Huanhuan Su,Hao An,Jianzhi Yang,Khizar Hayat,Ahmad Mohammad Salamatullah,Teng Li,Yuying Fu,Yun Zhai
Iron oxide nanoparticles are utilized as a novel iron supplement due to their low irritancy and high bioavailability. In this study, FeCl 2 ·4H 2 O and FeCl 3 ·6H 2 O (3,1, 2,1, 1,1, 1,2, and 1:3) were dissolved in a whey protein isolate amyloid fibrils (WPF) solution, followed by reaction under alkaline conditions at 60 °C for 50 min to form an iron oxide-WPF complex (Fe-WPF) with high bioavailability. The WPF binds to iron oxide via van der Waals forces, and iron oxide predominantly existing in the ferrous state. And, in vitro digestion indicated that the fibril of the Fe-WPF remained intact and the release of free Fe 2+ was only 2.0 μg/mL, which effectively increased the bioavailability of iron and reduced the irritation of Fe 2+ to the gastrointestinal mucosa. Fe-WPF prepared at a 1:1 ratio of FeCl 2 ·4H 2 O and FeCl 3 ·6H 2 O exhibits better bioavailability than FeSO 4 in vitro without observable cytotoxicity. Therefore, the Fe-WPF composite can become a novel iron oxide delivery system with high loading capacity and bioavailability.
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危险品化学品经营许可证（带存储）