Nature Communications
·
2026
·Vol. 17
·期 1
·5836
·
IF 18.1
Tursumamat Nafisa,Liu Qiannan,Lu Jihong,Guo Shuhong,Du Shuangshuang,Liu Shengyang,Wu Shuye,Li Heming,Wu Peng,Li Bin,Wei Juan
High-sensitivity glycomic analysis is essential for advancing both basic and translational biomedical research, yet remains methodologically challenging for limited-quantity samples, primarily due to complex workflows and reliance on specialized instrumentation. Here, we introduce solution-enhanced glycan reduction and permethylation (seGRAP), a streamlined, accessible, and high-sensitive method that enables glycan profiling from sub-nanogram protein inputs and picoliter-scale human plasma using widely available mass spectrometry (MS) platforms. seGRAP-MS demonstrates consistently robust and reproducible glycomic performance and enables comprehensive N -glycome characterization of human oocytes at single-cell resolution. Our single-oocyte analysis uncovers a highly conserved N -glycome across both individuals and developmental stages, revealing a previously uncharacterized layer of molecular stability in human reproduction. By significantly lowering technical and logistical barriers, seGRAP-MS redefines the benchmark for high-sensitive glycomics, expanding accessibility and empowering broader applications in fundamental biology, clinical research, and precision medicine.
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JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·Vol. 143
·期 40
·e71304
·
IF 3.1
Kang Jiaoyue,Chao Yan,Yan Kou,Lin Zhou,Tao Liu,Mao Chen
Epoxy resin (EP) is one of the most widely used thermosetting materials; however, its high inherent flammability severely restricts its practical applications. To address this issue, a novel nitrogen/phosphorus (N/P)-containing hexafunctional monomer (HCPB) was synthesized and employed to partially substitute diglycidyl ether of bisphenol A (DGEBA) in the preparation of flame-retardant epoxy thermosets (EP/HCPB), using polyetheramine (D230) as the curing agent. The effects of HCPB content on the thermal stability, mechanical strength, and flame retardancy of EP were systematically investigated. Specifically, the EP-HCPB 15 composite with 15.00 mol% HCPB achieved a tensile strength of 48.87 MPa, a limiting oxygen index (LOI) of 30.5%, a UL-94 V-0 classification, and a glass transition temperature ( T g ) of 58.11°C. Furthermore, the flame-retardant mechanism of HCPB in the epoxy matrix was systematically elucidated, involving both gas-phase free-radical quenching and condensed-phase charring effects. This work provides a facile and effective strategy for the design and preparation of high-performance flame-retardant epoxy thermosets.
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DIAMOND AND RELATED MATERIALS
·
2026
·
IF 5.2
Huanqing Pei,Shi Liu,Yingying He,Yulai Zhao,Yuxuan Chen,Tianzhou Ye,Linxi Hou
In this work, we developed a novel strategy to fabricate core-shell structured nitrogen-doped carbon nanotube/alginate@polyaniline (NCNT/Alg@PANI) composite fibers. First, nitrogen-doped carbon nanotubes (NCNTs) were dispersed in sodium alginate (SA) solution, and the resulting mixture was processed into wrinkled NCNT/Alg fibers via wet-spinning. Subsequently, polyaniline (PANI) was in situ polymerized on the fiber surface, which can significantly enhance the electrochemical performance of the fibers. By tuning the PANI loading, the morphology and specific capacitance of the NCNT/Alg@PANI fibers were optimized. The specific capacitance initially increases and then decreases as the amount of aniline used is raised from 0.2 mL to 0.5 mL. An optimal specific capacitance of 1661.7 mF cm −2 (221.6 F cm −3 ) was achieved in 1 M H 2 SO 4 electrolyte. The electrode exhibited excellent rate capability and cycling stability, retaining 73.7% of the capacitance when the current density was increased from 1 to 10 mA cm −2 , and maintaining 69.72% of the initial capacitance after 5000 charge-discharge cycles at a high current density of 20 mA cm −2 . Furthermore, a fiber-based supercapacitor was assembled using the NCNT/Alg@PANI fiber and delivered an energy density of 18.6 μWh cm −2 at a power density of 80 μW cm −2 . This work presents a promising and effective approach for developing high-performance energy storage devices. Download: Download high-res image (124KB) Download: Download full-size image
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
·
IF 6.7
Yongzhi Zhao,Gengchen Bai,Wenhe Yu,Jianfang Liu,Baorui Jia,Xuanhui Qu,Mingli Qin
The design of durable and efficient non-precious metal catalysts for the oxygen reduction reaction (ORR) is crucial for advancing fuel cell and metal–air battery technologies. Single-atom catalysts (SACs) have attracted significant attention owing to their high activity and atom utilization efficiency. However, conventional Fe–N–C SACs suffer from Fenton-related side reactions, while traditional carbon supports are susceptible to oxidative degradation under high potentials. Herein, we report a Mn single-atom catalyst (Mn–N–D) anchored on a partially graphitized sp 2 /sp 3 carbon support derived from low-cost industrial diamond. The partial transformation of the sp³ carbon surface into sp² carbon generates conductive domains that stabilize atomically dispersed Mn–N 4 moieties. The optimized Mn–N–D catalyst exhibits enhanced alkaline ORR performance, delivering a half-wave potential of 0.831 V vs. RHE. Experimental and density functional theory (DFT) analyses reveal the pyridinic-N-coordinated Mn–N 4 configuration serves as the primary active site, facilitating O–O bond cleavage and promoting the four-electron reaction pathway. This work provides a cost-effective strategy for constructing high-performance SACs through the synergistic integration of robust sp 3 carbon with conductive sp 2 carbon domains.
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ACS Applied Polymer Materials
·
2026
·
IF 5.2
Yu Huang,Xiao Li,Guoping Zhu,Zhennan Wang,Pooya Jafari,Xiaoning Song,Jiabing Feng,Zongmin Zhu,Siqi Huo,Pingan Song
Despite great advances, it remains a grand challenge to design a fire retardant for the creation of transparent fire-retardant epoxy resin (EP). To address this issue, a phosphorus/nitrogen/sulfur-containing ionic flame retardant, TD, composed of a diphenylphosphinate unit and a 2-thiophenethylammonium unit, was synthesized and incorporated into EP. The EP composite containing only 3 wt % TD (0.25 wt % phosphorus) achieved a vertical burning (UL-94) V-0 rating, and the limiting oxygen index (LOI) increased to 24.7%. Cone calorimetry results showed that, relative to neat EP, the EP/5TD composite achieved notable reductions in heat and smoke generation. Its peak heat release rate (pHRR) and total heat release (THR) decreased by 44.0% and 24.0%, while the peak yields of carbon monoxide (pCOP) and carbon dioxide (pCO2P) decreased by 23.5% and 58.6%. Notably, TD not only significantly enhanced fire safety and mechanical properties of EP but also effectively maintained thermal properties and optical transparency. The flame-retardant efficacy of TD was ascribed to the combined action of P, N, and S, which enabled multiple mechanisms, including condensed-phase char barrier formation, gas-phase dilution/cooling, and radical scavenging effects. This work develops highly effective multielement flame retardants for preparing fire-safe epoxy resins with superior comprehensive performances.
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Materials Today Chemistry
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2026
·
IF 7.4
Qiujun Hu,Xiaowei Liang,Xiaomiao Zhao,Panjun Wang,Chunlong Guan,Shun Wang,Zhiwei Zhao
Thermal-driven Ag intercalation enables vdW-gaps doping in 3D-printed n-type Bi 2 Te 2.7 Se 0.3 . • vdW-gaps Ag enhances electrical transport and lowers lattice thermal conductivity. • Peak ZT of 1.26 and module efficiency of 6.0% are achieved. Bi 2 Te 3 -based materials are recognized as the benchmark thermoelectrics for near-room-temperature applications. However, substantially inferior thermoelectric performance in n-type Bi 2 Te 3 compared to highly performance p-type variants creates a critical performance asymmetry, restricting energy conversion efficiency. Herein, we develop thermal-driven Ag intercalation into van der Waals (vdW) gaps of 3D-printed n-type Bi 2 Te 2.7 Se 0.3 (BTS), achieving vdW-gaps doping. The first-principles calculations demonstrate that interstitial Ag atoms are mainly located at the vdW gaps, which reduces their direct perturbation to the conductive layers. As a result, they provide spatially separated conduction electrons, increasing carrier concentration while sustaining high carrier mobility. Furthermore, the Ag-intercalation-induced superlattice structures efficiently scatter mid-to-long wavelength phonons, thereby effectively suppressing lattice thermal conductivity. Ultimately, the BTS + 0.2% Ag intercalated sample achieves a peak ZT of 1.26 at 375 K, with an average ZT ∼1.12 maintained across the operational temperature range of 300-500 K. Leveraging such exceptional thermoelectric performance, a thermoelectric module assembled with 127 pairs legs delivers a conversion efficiency of 6.0% under ΔT = 180 K. This work provides a facile thermal-driven Ag intercalation strategy for vdW-gaps doping of n-type Bi 2 Te 3 -based thermoelectrics, breaking the performance asymmetry bottleneck and enabling high-efficiency near-room-temperature thermoelectric modules.
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Nature Synthesis
·
2026
·
IF 22.6
Zhang Hao,Liu Ziming,Li Di,Wu Chenxin,Hua Lei,Li Haiyang,Yi Yanhui,Huang Rui,Yu Liang,Deng Dehui
Direct co-conversion of earth-abundant N 2 and CH 4 to high-value C–N–O compounds is a promising synthetic method but remains challenging, as the activation of N 2 and CH 4 typically requires high-energy conditions that can cause product decomposition. Here we report a plasma-cascade process for synthesizing cyclohexanone cyanohydrin (Cy(OH)CN) via direct coupling of N 2 and CH 4 plasma with cyclohexanone. This catalyst-free process achieves a Cy(OH)CN formation rate of 0.60 mmol h −1 with a high selectivity of 95.8% towards the cyclohexanone-derived products under mild conditions, concurrently generating ammonia as a valuable coproduct. Comprehensive mechanistic studies reveal that plasma-generated ·CH x and hydrogen radicals enable direct α-carbonyl functionalization of cyclohexanone to α-CH x cyclohexanol intermediates, which then coupled mainly with excited-state N 2 and are further activated by hydrogen radicals to generate Cy(OH)CN. This plasma-cascade strategy decouples the activation of inert molecules from the formation of relatively unstable C–N–O compounds, enabling selective cyanohydrin synthesis that avoids using high-cost NH 3 and toxic HCN. The alternative text for this image may have been generated using AI.
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JOURNAL OF MATERIALS SCIENCE
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2026
·
IF 4.4
Guo Xiurong,Zheng Kaiwen,Liu Zexin,Qiao Lulu,Sun Chaowei,Du Danfeng
The rapid advancement of new energy vehicles presents numerous challenges, among which the growing incidence of battery overheating-related accidents highlights the urgent need for effective thermal insulation materials for battery thermal management. To address this demand, microencapsulated phase-change materials (MEPCMs) comprising a titanium dioxide (TiO 2 ) shell and an n-hexadecane core were synthesized through interfacial polymerization. Incorporation of the MEPCMs into SiO 2 aerogels (SA) prepared by ambient drying yielded a novel phase-change aerogel composite material (MSA). The composite demonstrated a slightly higher thermal conductivity, 0.041 W/m·K, than both pristine silica aerogels and those directly loaded with n-hexadecane. Its latent heat reached 91.39 J/g, thereby combining thermal insulation with energy storage to achieve dynamic thermal regulation. Overall, this simple and scalable fabrication approach underscores the aerogel composite’s promise in battery thermal management and other thermal regulation uses. Graphical
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CELLULOSE
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2026
·
IF 4.6
Han Qiuxia,Xu Yanmeng,Wang Fei,Zhang Qiang,Chen Yong,Lv Shaoping
In a synergistic unit of N -halamine and cationic salt, an increased ratio of the N -halamine elicited a higher biocidal efficacy. However, the upper limit to the N -halamine content where the synergism is not impaired because of the diminished role of the cationic salt is still unknown. Herein, 4 N -halamine sites, one more than the current maximum, were combined with 1 cationic salt in a composite unit for the evaluation of the effect of such a ratio on synergism. Briefly, 4-aminopyridine was quaternized with 1-chlorohexane to form a cationic pyridinium. Uramil and the cationic pyridinium were successively bonded to allylsuccinic anhydride via ammonolysis and amidation to form a product with 1 cationic salt and 4 N–H bonds as N -halamine precursors. The allylic C=C of the product subsequently reacted with Si–H of poly(methylhydrosiloxane) via hydrosilylation to prepare a polysiloxane that was interpenetrated into cotton cellulose at 50 °C and 28 MPa in supercritical CO 2 . Chlorination of N–H bonds transformed each polysiloxane pendant to the target composite unit that existed in a 71 nm modification layer on the interpenetrated cotton. Antibacterial tests showed that the designed composite units completely eradicated ~ 10 7 CFU of Staphylococcus aureus and Escherichia coli in 15 min, an efficacy between those of a counterpart with only 4 corresponding N -halamine sites and a reported unit with 1 N -halamine and 1 cationic center under comparable conditions, which suggested that the increase of N -halamine to such a ratio did not further benefit synergism. Evaluations of biocidal stability and rechargeability indicated that the modifier was chemically robust and scCO 2 interpenetration produced a durable connection between the modifier and cellulose. Graphical
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ELECTROCHIMICA ACTA
·
2026
·
IF 5.8
Weiya Tian,Lixia Guo,Jiaju Lu,Xiaoling Wang,Jiabin Ding,Junxian Hu
Corncob-shaped Bi/V 2 O 3 @NC composite was designed and constructed. • Bi/V 2 O 3 @NC composite delivers 266.9 mAh g −1 at 1 A g −1 , and high rate performance. • Bi/V 2 O 3 heterostructure and carbon shell ease volume expansion for stable cycling. • Phase transition mechanism of Bi/V 2 O 3 @NC composite during cycling was investigated. Bismuth (Bi) is considered a promising anode candidate for alkali metal-ion batteries owing to its abundant natural reserves, outstanding theoretical capacity, intrinsic conductivity, and moderate charge/discharge potential. However, during cycling, it suffers from pulverization and agglomeration, leading to severe volume expansion, structural collapse, and rapid capacity decay. In addition, its sluggish alloying reaction kinetics limits the rate capability and practical applications. To address these challenges, a corncob-shaped Bi/V 2 O 3 @NC composite is designed, in which Bi and V 2 O 3 nanoparticles are uniformly encapsulated within a nitrogen-doped carbon nanoshell. This hierarchical architecture shortens ion/electron transport pathways and provides abundant electrochemically active sites. The Bi/V 2 O 3 heterointerface mitigates the volume expansion of Bi during cycling while enhancing reversible capacity, as evidenced by the stable cycling performance. The nitrogen-doped carbon coating suppresses volume deformation, enhances electrode conductivity, and facilitates ion diffusion, contributing to improved structural stability and electrochemical kinetics. Benefiting from these structural features, the Bi/V 2 O 3 @NC delivers a reversible capacity of 206.5 mAh g −1 at 10 A g −1 and retains 233.4 mAh g −1 after 3500 cycles at 5 A g −1 . Electrochemical analysis and ex situ characterization reveal that this performance originates from the synergistic effect of surface-capacitive and diffusion-controlled processes, with a high capacitive contribution (93.8% at 1.2 mV s −1 ) enabling fast kinetics. The sodium storage mechanism involves reversible alloying (Bi ↔ NaBi ↔ Na 3 Bi) and intercalation (V 2 O 3 ↔ Na x V 2 O 3 ) reactions, as confirmed by ex situ XRD. This work provides a design strategy for metal/metal oxide heterostructures and offers insights into the electrochemical mechanisms of alloy-based anodes for sodium-ion batteries. Download: Download high-res image (301KB) Download: Download full-size image
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MOLECULES
·
2026
·Vol. 31
·期 7
·1172
·
IF 5.1
Bing Chen,Yiwen Li,Chaojiang Fan,Qingpei Zhou,Wenhu Li,Hang Su,Cong Li,Shixiong Zhang,Chenhui Yang,Teng Wang
Lithium–sulfur (Li-S) battery technology has attracted significant research interest owing to sulfur’s remarkable theoretical capacity and exceptional energy density potential. Nevertheless, the low conductivity of sulfur and the “shuttle effect” pose challenges to its practical applications. To enhance electrochemical performance, this work developed nitrogen-doped graphene (NG) nanosheets as a separator coating for Li-S battery. As a modification layer for separators, NG acts as a physical barrier that prevents polysulfides from migrating across the separator to reach the anode, thereby mitigating the shuttle effect. Additionally, NG improves the conductivity of the separator and enhances wettability between the separator and electrolyte, facilitating uniform transmission of lithium ions. Notably, NG functionalized separators demonstrate excellent mechanical flexibility, contributing to improved cycle stability for batteries. Furthermore, theoretical calculations indicate a strong interaction between NG and lithium polysulfides (LiPSs), effectively inhibiting polysulfide migration. The Li-S battery utilizing the NG modified separator maintains a capacity retention rate of 51.5% after 100 cycles at 0.1 C with a sulfur loading of 1.47 mg/cm2and exhibits a capacity decay rate of only 0.092% after 500 cycles at a discharge rate of 1 C. This work highlights the potential advantages of employing NG as a separator coating layer in enhancing the electrochemical performance of the Li-S battery.
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PubMed
高影响因子
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
·
2026
·
IF 5.2
Yanpeng Zhang,Pinru Wang,Maoshu Yin,Yilong Duan,Taojin Chen,Mengmeng Lun,Min Sun,Lijie Sun,Nantao Hu,Liying Jiang,Zijiong Li,Bin Li
With the rapid development of wearable electronics, the key challenge of existing flexible energy storage devices is their low energy density, limited cycling ability, and safety concerns associated with carbon cathode materials and conventional electrolyte systems. In this paper, we present a strategy in which the MXene nanosheets and nitrogen-doped graphene (N-RGO/MXene) heterostructure are employed to assemble a flexible zinc-ion asymmetric supercapacitor (FZASC) using Zn(CF 3 SO 3 ) 2 /PVA as gel electrolyte. The MXene/N-RGO heterostructure composite forms a three-dimensional (3D) conductive network that facilitates the rapid deposition and transport of Zn 2+ . The quasi-solid-state FZASC with N-RGO/MXene heterostructure anode exhibits the highest capacitance of 133.53 F g −1 at 0.2 A g −1 , average energy density of 36.35 Wh kg −1 , and a power density of 140 W kg −1 , respectively. Notably, the prepared flexible FZASC exhibits a capacity retention of 84.67% after 10000 cycles at 6 A g −1 , with a coulombic efficiency approaching 100% and excellent mechanical flexibility under different bending angles and bending cycles. Moreover, the quasi-solid-state FZASC can keep an LED light illuminated for several minutes. The design strategy and performance metrics provide guidance for next-generation, flexible, and safe quasi-solid-state FASCs with high performance and long-duration stability, exhibiting great potential in energy-storage applications.
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危险品化学品经营许可证（带存储）