Science Advances
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2025
·Vol. 11
·期 29
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IF 12.5
Shengbo Chen,Ziyu Guo,Boxi Lu,Mengsi Sun,Saijie Wang,Shunhang Li,Yizhou Jiang,Qiwu Wei,Dou Wang,Xingyu Jiang
C-peptide is a critical biomarker for evaluating pancreatic β cell function and managing diabetes. However, conventional methods such as enzyme-linked immunosorbent assay are limited by lengthy processing times and the necessity for invasive sample collection. This study introduces a regenerable, portable, and wearable device for minimally invasive, real-time monitoring of C-peptide in dermal interstitial fluid (ISF). The device uses a microneedle array and negative pressure extraction for ISF collection. A double-antibody sandwich approach was used to detect C-peptide, and an antibody regeneration strategy was applied to remove bound antigen-antibody complexes, thereby achieving repeatable detection, enabling at least 10 detection assays on the same chip with negligible signal attenuation. The compact design features a skin contact area of only 3 cm by 5.4 cm and excellent biocompatibility. Integrated with a mobile app, the device provides real-time concentration reading. Mouse and rabbit tests confirm effective ISF sampling and monitoring accuracy, demonstrating its potential for at-home diabetes management and broader wearable biosensing applications.
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ADVANCED MATERIALS
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2025
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IF 26.8
Kui-Bin Cui,Cheng-long He,Jian-Hua Wu,Xing Gao,Yong Li,Pei Han,Ning-Ning Sun,Yu-Fei Wang,Xi-Hong Hao,Lin Li,Mao-Sheng Cao
Multispectrum response technology is the key to developing multifunctional electromagnetic devices in cross-field applications. Traditional methods rely on integrating complex multi-material systems, leading to bulkier and costlier devices. Here, a hierarchical heterodimensional structure composed of FeNiHo alloy and carbon matrix achieves autonomous multispectrum-coupling electromagnetic response between microwave and ultraviolet through polar interface engineering. In the microwave band, the heterodimensional structure exhibits outstanding microwave absorption performance with high reflection loss of −46.87 dB and ultra-wide absorption bandwidth of 8.96 GHz. Furthermore, the antenna arrays based on the heterodimensional structure demonstrate in situ microwave frequency-agile property by a coupled ultraviolet stimulation, where the largest frequency modulation range reaches 5.05 GHz in Ku-band. In the ultraviolet band, multimode photodetectors constructed by the heterodimensional structure possess excellent responsivity and accurate decoding ability for anti-interference ultraviolet communication. Particularly, the metamaterial detector achieves analog signal communication for the first time by microwave-ultraviolet coupling response. This work pioneers a novel approach to developing multifunctional electromagnetic materials for multispectrum applications.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Xiang Li,Danwen Guo,Shanying He,Jiahao Kang,Yijuan Zhao,Shaohua Wu,Chunping Yang
Peroxymonosulfate-based advanced oxidation processes (PMS-based AOPs) via nonradical pathways have attracted close attention due to their excellent anti-interference properties and high selectivity in degrading organic pollutants from wastewater. However, the highly efficient production of nonradicals for PMS activation remains challenging, especially for recalcitrant organic pollutants such as tetracycline (TC) in complex aqueous matrices. Here, MnO and nitrogen-doped carbon catalysts were synthesized using NH 4 Cl modified strategy. The performances and mechanisms of TC degradation were evaluated, and toxicity of the system was also assessed. Results showed that the system achieved 86.7 % removal of TC within 30 min with a rate constant of 0.1713 min −1 . This system demonstrated effective TC degradation across a broad pH range (3.0–10.5) while exhibiting resistance to diverse anionic interferences in aqueous matrices. Characterization data showed that NH 4 Cl calcination led to a hierarchical porous structure with optimized MnO dispersion and nitrogen functionality in the carbon support, further significantly enhancing nonradicals generation through PMS activation. The key active sites were identified as Mn-N X sites, graphitic nitrogen, and C-O/C-N groups. Quenching experiments and ESR tests indicated that electron transfer and Mn(V) played the major role in TC degradation, followed by singlet oxygen ( 1 O 2 ). Based on LC-MS analysis of intermediates, three primary TC degradation pathways were identified: hydroxylation-driven ring-opening, oxidative demethylation/deamination, and oxidative ketonization. Toxicity assessment via the Toxicity Estimation Software Tool confirmed a significant reduction in ecotoxicity throughout these pathways. These data could be referred for the optimization of PMS-based AOPs in wastewater treatment.
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International Journal of Electrochemical Science
·
2025
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IF 2.4
Yiqiu Wang,Zhuotong Yu,Yourong Wang,Junjie You,Chuanqing Du,Siqing Cheng
Tin oxide (SnO 2 ) as one of the most intensively investigated anode materials for LIBs is impeded for its commercial application due to the low electronic conductivity and huge volume change during the charge/discharge process which resulting in severe capacity fading and poor cycling ability. Herein, hybrid SnO 2 /MoS 2 @C nanocomposite was designed and synthesized hydrothermally using P123 as dispersant and glucose as the carbon source, and investigated electrochemically and comparatively. The results show that the hybrid SnO 2 /MoS 2 @C nanocomposite anode delivers reversible specific capacities of 1047.41, 985.06, 837.23, 687.37 and 545.96 mAh g −1 at current densities of 0.1, 0.2, 0.5, 1, and 2 A g −1 , respectively and the discharge specific capacity still remains ca. 1047 mAh g −1 after 200 cycles at 0.1 A g −1 , demonstrating an improved cycling stability and rate capability, which might be attributed to the unique hybrid architecture with synergistic effect on the reaction kinetics and charge transfer properties. This paves a way for developing advanced energy storage materials in in next-generation energy storage systems.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Xiaoling Liu,Sibin zhu,Shuodan Li,Letian Li,Xiaoming Zhu,Haolin Tang,Yadong Wang
Commercial Pt/C catalyst in Proton exchange membrane fuel cells (PEMFCs) usually suffers from Pt agglomeration, dissolution, and carbon support corrosion—exacerbated by Pt-catalyzed carbon oxidation. To address these challenges, composite supports combining high stability and electronic synergy with Pt have emerged as a promising solution. Herein, a platinum nanoparticle catalyst supported on a nitrogen-doped titania/carbon composite (Pt NPs/TiO₂-N/C) was successfully fabricated via a two-step hydrothermal method, aiming to optimize both oxygen reduction reaction (ORR) kinetics and durability through regulated support structures and interfacial interactions. Experimental results demonstrate that strong metal-support interactions (SMSI) between Pt and TiO₂-N/C play a critical role. On one hand, SMSI induces electron transfer from the support to Pt, enhances ORR kinetics. On the other hand, this interaction promotes preference nucleation and distribution of Pt on TiO₂-N surfaces, reducing direct Pt-carbon contact and effectively inhibiting Pt-catalyzed carbon corrosion, thereby improving durability. The Pt NPs/TiO₂-N/C catalyst exhibits excellent ORR activity with a half-wave potential of 0.842 V (vs. RHE) and remarkable stability, showing only a 33 mV decay in half-wave potential after 5000 accelerated degradation test cycles. This study validates that precise regulation of metal-support electronic interactions enables synergistic optimization of catalytic activity, stability, providing a theoretical basis and practical strategies for the rational design of high-performance PEMFC catalysts.
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Surfaces and Interfaces
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2025
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IF 6.3
Hongqi Nie,Ruixuan Xu,Xin Li,Yuruizhi Lin,Suhang Chen,Kangzhen Xu,Jia-Rong Zhang,Qi-Long Yan
The combustion characteristics and energy output properties of solid propellants play a decisive role in rocket engine and propulsion system performance. Particularly for HTPB propellant systems incorporating CL-20 as the high-energy oxidizer, achieving wide-range burn rate regulation and maintaining low pressure exponents constitute fundamental requirements for practical implementation. Through advanced interfacial control methodology, this study successfully constructed two types of aluminum/oxidizer integrated composites (Al@AP and Al@CL-20), while employing precise catalysis to accurately distribute C 3 N 4 burn rate modifiers within the target oxidizer. This innovative approach has demonstrated significant enhancement in aluminum combustion efficiency within the composite propellant system. The strategic incorporation of C 3 N 4 , coupled with the optimized interfacial architecture between fuel and oxidizer components, establishes a new paradigm for performance modulation in solid propellant formulations. Thermal analysis (DSC/TGA) results reveal that both Al@AP/CN and Al@CL-20/CN composites exhibit concentrated exothermic characteristics, yet demonstrate fundamentally distinct heat release profiles. By strategically exploiting these differential energy release features, propellant formulations with tailored interfacial compositions and precisely engineered catalytic sites were developed. The modified propellants displayed markedly different combustion behaviors: the Al@CL-20/CN-based formulation achieved a 33% reduction in pressure exponent ( n =0.18) with significantly enhanced low-pressure burning rates, while the Al@AP/CN-modified system maintained ultra-low burning rates (<5 mm·s -1 ) but with high combustion efficiency across broad pressure ranges with an exceptionally low pressure exponent of 0.23. Complementary analysis of condensed combustion products (CCPs) confirmed substantial improvements in combustion completeness, showing a 78% reduction in micron-sized aluminum agglomerates and significantly refined CCPs particle size distribution. These findings collectively demonstrate that the synergistic combination of interfacial modification and precision catalysis effectively optimizes aluminum combustion efficiency and tunability of burn rate of high-energy HTPB propellants.
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CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Dejun Liang,Xiaojuan Li,Yufeng Pi,Chenchen Xin,Mingyong Ren,Wei Long,Jie Wu,Pinyang Fang,Feifei Guo,Aiguo He,Zengzhe Xi
In this study, anisotropy strategy was employed to effectively enhance the piezoelectric performance and energy harvesting capability of 6 Pb(Sc 1/2 Nb 1/2 )O 3 -61 Pb(Mg 1/3 Nb 2/3 )O 3 -33PbTiO 3 (Abb. 6PSN–61PMN–33PT) ceramics. A high crystallographic orientation (Lotgering factor F 001 exceeding 98.5 %) was obtained in 6PSN–61PMN–33PT textured ceramics using the template grain growth (TGG) method. The piezoelectric response of 6PSN–61PMN–33PT ceramics was significantly improved, while the dielectric constant ( ε r ) was reduced. Compared to random ceramics, the textured ceramics exhibited higher figure of merit ( d 33 × g 33 ), markedly enhanced electromechanical coupling factor ( k p ) and piezoelectric coefficient ( d 33 ). The optimal properties were obtained in 6PSN–61PMN–33PT textured ceramics with 1 wt% BaTiO 3 template: d 33 = 1179 pC/N, k p = 0.87, ε r = 2766， d 33 × g 33 = 5.67 × 10 −11 m 2 /N, dielectric loss tan δ about 0.56 %, mechanical quality factor Q m = 194, and piezoelectric strain constant d 33 ∗ = 1130 pm/V and maximum strain S = 0.23 % at 20 kV/cm. These results demonstrate that 6PSN–61PMN–33PT textured ceramics hold promising application potential in energy harvesters.
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ACS Catalysis
·
2025
·
IF 13.1
Yu-Yang Liu,Shan Xu,Xiao-Xin Li,Run-Han Li,Xin-Ting Cai,Hui-Zhen Zhong,Jiang Liu,Qing Huang,Lei Zhang,Shun-Li Li,Ya-Qian Lan
Developing strategies and photocatalysts for C(sp3)-H bond functionalization under simple and mild conditions is important but challenging. Here, we report two redox heterocluster-based frameworks, named Ni5-PW12 and Ni5-V16, in which the terminal oxygen atoms of polyoxometalates are directly coordinated to metal atoms in metal–organic clusters. Due to the coexisting strong oxidation and reduction capacities, both of these photocatalysts achieve photocatalytic C(sp3)-H bond oxidative imination through combining oxidation of methyl aromatics and reduction of nitro aromatics reactions. The experimental and theoretical results reveal that benefiting from the short distance between the clusters, the rapid charge transfer and mass transfer processes would enhance the photocatalytic reactivity and inhibit side reactions. More importantly, all of the photocatalytic reactions are carried out in mild conditions at room temperature without any additional solvents, photosensitizers, oxidizing or reducing agents, or cocatalysts.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2025
·
IF 21.1
Yuhou Pei,Di Li,Yufeng Pei,Zongmiao Li,Yuting Liu,Xiang Ling,Yingying Lu,Bing Zhang
Urea synthesis by co-electroreduction of CO 2 and nitrate provides a promising strategy for sustainable fertilizer production. Despite advances in catalyst exploration, it is of significance to figure out the microenvironment on the electrode interface toward the kinetically matched C-N coupling. Here, we fabricated a hydrophobic triple-phase catalytic interface through a simply blending of commercial CuZn alloy and polytetrafluoroethylene (PTFE) particles for proof of concept. Incorporating PTFE boosted the Faradaic efficiency of urea from 8 % to 49 % and tripled the urea production rate. Kinetics and in-situ spectra studies reveal that hydrophobicity slows the proton/electron transfer during nitrate reduction, accelerates CO₂ diffusion at the triple-phase interface, and preserves high-valent asymmetric adsorption sites. This synergy extends the lifetime and surface coverage of critical C-/N-intermediates, and thus kinetically-matched asymmetric C-N coupling.
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CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Junpeng Jiang,Liwen Yan,Mengjia Song,Yifan Li,Anran Guo,Haiyan Du,Jiachen Liu
Thermal insulation and electromagnetic wave (EMW) absorption integrated materials with lightweight are highly desirable in hypersonic vehicles and military application, as they provide both aerodynamic heat resistance and EMW stealth capability. Herein, a C/SiC/SiBCN ceramic composite aerogel was developed using a novel strategy combining in situ chemical vapor deposition of SiC nanofibers with the polymer-derived ceramic (PDC) aerogel method. The microstructure, phase composition, thermal insulation, mechanical properties and EMW absorption performances of the composite aerogel were thoroughly investigated. The resulting C/SiC/SiBCN composite aerogel with three impregnation-pyrolysis cycles demonstrates improved mechanical properties, with the compressive strength increasing from 0.21 MPa to 0.48 MPa compared to pure SiBCN aerogel. Additionally, the composite aerogel shows a low thermal conductivity of 0.049 W/mK and a low density of 0.116 g/cm 3 . Moreover, the C/SiC/SiBCN composite aerogel exhibits outstanding EMW absorption properties, achieving a minimum reflection loss of −45.7 dB and an effective bandwidth of 5.3 GHz. Owing to the integration of EMW absorption and thermal insulation properties, the C/SiC/SiBCN composite aerogel offers promising potential for developing integrated microwave absorption and thermal insulation materials for high-speed vehicles.
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CATALYSIS TODAY
·
2024
·
IF 5.2
Wei Wang,Hong Zhao,Xikang Zhao,Junfeng Rong,Ning Liu,Peng Yu,Jingxin Xie,Genghuang Wu,Huan Li,Mudi Xin,Mingsheng Zong
Atomically well-dispersed platinum catalysts play a vital role in various chemical processes such as direct dehydrogenation of propane (PDH), due to their high performance originated from high atom utilization. However, these catalysts suffer from complex preparation methods, and preparing atomically dispersed Pt-based catalysts with feasible methods remains challenging. Herein, we report a convenient method to prepare efficient atomically dispersed Pt/C catalysts for PDH by sulfur doping into the carbon support by simple cyclohexane impregnation method. The prepared atomically well-dispersed catalysts possess strong interactions between Pt and carbon support, which led to improved exposure of active sites and higher propylene formation rate compared to that without sulfur doping. Sintering of the Pt species was also inhibited and stability was improved by 47%. Propylene selectivity also showed a positive correlation with the amount of sulfur doping. The propane conversion first increased and then decreased, which was due to the loss of sulfur during the reaction that caused the agglomeration of Pt and the evolution of structure. It was found that the maximum catalytic activity appeared with Pt clusters of ∼ 0.71 nm with an average Pt-Pt coordination number of 3.1 and Pt-Pt bond distance of 3.09 Å.
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Cyborg and Bionic Systems
·
2025
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IF 18.1
Yue Li,Lu Yang,Qianbo Yu,Yi Du,Ning Wu,Wentao Xu
C-tactile afferents are low-threshold mechanoreceptors that innervate the hairy skin of mammals, essential for emotional interactions. Replication of such a mechanism could facilitate emotional interactions between humans and embodied intelligence robotic systems. Herein, we demonstrate a monolithic synaptic device that replicates and integrates tactile sensing and neuromorphic processing functions for in-sensor computing. The device is operable by both mechanical and electrical inputs, with the mechanoelectrical operation mechanism stemming from the synergistic effect of dynamic ionic migration and injection. As a proof of concept, the device effectively converts spatiotemporal tactile stimuli into distinct electrical signals, which are subsequently encoded to enable the microcomputer to classify multiple discrete emotional states, such as happiness, calmness, and excitement. This monolithic integrated device, which converges mild tactile perception with neuromorphic processing, with high tactile sensitivity and low-energy consumption, establishes an approach for emotional interaction between intelligent robots and human beings.
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