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Engineering B‒N Covalent Bond-Fused Naphthalene Derivatives for Narrowband Yellow Emission and Power-Efficient White OLEDs. B-N共价键熔接萘衍生物的工程窄带黄色发光和节能白色oled。
IF 29.4 1区 材料科学
Advanced Materials Pub Date : 2025-09-30 DOI: 10.1002/adma.202513180
Renze He,Qi Wang,Shuai Xiao,Wanting Ju,Han Si,Xiangqin Gan,Xian Chen,Guoyun Meng,Dongdong Zhang,Lian Duan,Junqiao Ding
{"title":"Engineering B‒N Covalent Bond-Fused Naphthalene Derivatives for Narrowband Yellow Emission and Power-Efficient White OLEDs.","authors":"Renze He,Qi Wang,Shuai Xiao,Wanting Ju,Han Si,Xiangqin Gan,Xian Chen,Guoyun Meng,Dongdong Zhang,Lian Duan,Junqiao Ding","doi":"10.1002/adma.202513180","DOIUrl":"https://doi.org/10.1002/adma.202513180","url":null,"abstract":"The doping of B‒N covalent bond into multiple resonance (MR) emitters is believed to enable easy synthesis while maintaining the intrinsic narrow spectral profile for high-definition organic light-emitting diodes (OLEDs). However, there is still an unexplored spot if the residual MR section is further removed. Herein, the molecular engineering of B‒N covalent bond-fused naphthalene derivatives is demonstrated that are free of MR for yellow emission with a reduced spectral bandwidth and power-efficient white OLEDs. Starting from the BN-nap1 reference, a dual fusion strategy is proposed to design two new yellow emitters, BN-nap2 and BN-nap3, by integrating B‒N bonds with naphthalene via a centro and axial symmetry, respectively. Both of them exhibit significantly red-shifted light to the yellow region, decreased full width at half maximum, improved photoluminescent quantum yield, due to the B-naphthalene-B conjugation and suppressed high-frequency vibrations. As a result, the corresponding warm white devices achieve a record-high power efficiency of 101.4 lm W-1 at 1000 cd m-2 and Commission Internationale de l'Éclairage (CIE) coordinates of (0.342, 0.542). Further device optimization leads to a standard white electroluminescence with CIE coordinates of (0.334, 0.342). The unprecedented performance indicates the great potential of B‒N covalent bond-fused naphthalene derivatives in power-efficient white OLEDs.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"5 1","pages":"e13180"},"PeriodicalIF":29.4,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145194607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Developments and Opportunities in Temperature‐Responsive Thermal Smart Materials 温度响应热智能材料的发展与机遇
IF 29.4 1区 材料科学
Advanced Materials Pub Date : 2025-09-29 DOI: 10.1002/adma.202509337
Yufeng Shen, Jun Jin, Yang Su, Min Chen, Limin Wu
{"title":"Developments and Opportunities in Temperature‐Responsive Thermal Smart Materials","authors":"Yufeng Shen, Jun Jin, Yang Su, Min Chen, Limin Wu","doi":"10.1002/adma.202509337","DOIUrl":"https://doi.org/10.1002/adma.202509337","url":null,"abstract":"Controllable thermal management is essential in environmental‐sensitive application scenarios, such as lithium batteries, data centers, and human body systems. This necessity has spurred the development of next‐generation intelligent materials. Thermal smart materials (TSMs), which can self‐adjust their thermal conductivity (TC) in a specific temperature range in response to external stimuli, have attracted significant interest due to their advantages over traditional temperature control systems or devices, including convenience, efficiency, and compact structure. Here, an overview of the non‐temperature‐responsive TSMs stimulated is first presented by various factors such as electrical/magnetic, light, mechanical force, humidity, and temperature, followed by a focused summary of the key mechanisms underlying temperature‐responsive TSMs that have thermal sensitivity. By addressing existing gaps and opportunities in the field of TSMs, we outlook future directions of thermoresponsive TSMs from three aspects: crystal state transition, reconfigurable chemical structures, and temperature‐based multi‐mechanism coupling. Finally, the potential applications of TSMs in data centers, electronic components, and individual thermal management are discussed. Based on the existing research on TSMs and the advances in related fields, we hope this perspective will guide the future development of high‐performance TSMs.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"39 1","pages":"e09337"},"PeriodicalIF":29.4,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145182753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
All-Round Enhancement of Wide pH Hydrogen Evolution Enabled by Tungsten-Based Amorphous Alloy-Mediated Adjacent Platinum Atoms. 钨基非晶合金介导邻近铂原子全面增强宽pH析氢。
IF 29.4 1区 材料科学
Advanced Materials Pub Date : 2025-09-29 DOI: 10.1002/adma.202511276
Jianhua Zhang,Kai-Ling Zhou,Yongzheng Zhang,Hao Wang
{"title":"All-Round Enhancement of Wide pH Hydrogen Evolution Enabled by Tungsten-Based Amorphous Alloy-Mediated Adjacent Platinum Atoms.","authors":"Jianhua Zhang,Kai-Ling Zhou,Yongzheng Zhang,Hao Wang","doi":"10.1002/adma.202511276","DOIUrl":"https://doi.org/10.1002/adma.202511276","url":null,"abstract":"Electrochemical water splitting based on single-atom catalysts (SACs) offers a sustainable route for hydrogen production. However, conventional SACs suffer from weak synergistic effects in harsh electrolytes. Here, we report a tungsten-based amorphous alloy (FeNiWPB) supported adjacent Platinum single-atom catalyst (PtASSA@FeNiWPB). Spectroscopic and computational analyses disclose that the amorphous W-based alloy matrix provides abundant defect sites to anchor and mediate adjacent Pt atoms, thereby boosting multiple H conversions via metal-metal synergy. Additionally, the catalyst's corrosion resistance is significantly enhanced through the formation of robust M─W bonds (M═Pt, Fe, Ni), which effectively suppress metal leaching across broad pH ranges. Furthermore, the formation of Pt-W/Fe/Ni polarized pairs at the alloy surface via Pt-support interactions induces electron redistribution and accelerates H*/OH* adsorption kinetics, thereby enhancing multiple H2O* dissociation pathways. Consequently, PtASSA@FeNiWPB exhibits ultralow overpotentials of 17 mV (acidic) and 18 mV (alkaline) at -10 mA cm-2, with mass activities 5.8 times (acidic) and 63.6 times (alkaline) higher than commercial Pt/C. Notably, it maintains performance for 600 h in both acidic and alkaline environments, far exceeding W-free counterparts (<50 h) and previous reports, positioning it at the forefront of HER performance. This work establishes a universal strategy for engineering durable electrocatalysts.Electrochemical water splitting based on single-atom catalysts (SACs) offers a sustainable route for hydrogen production. However, conventional SACs suffer from weak synergistic effects in harsh electrolytes. Here, we report a tungsten-based amorphous alloy (FeNiWPB) supported adjacent Platinum single-atom catalyst (PtASSA@FeNiWPB). Spectroscopic and computational analyses disclose that the amorphous W-based alloy matrix provides abundant defect sites to anchor and mediate adjacent Pt atoms, thereby boosting multiple H conversions via metal-metal synergy. Additionally, the catalyst's corrosion resistance is significantly enhanced through the formation of robust M─W bonds (M═Pt, Fe, Ni), which effectively suppress metal leaching across broad pH ranges. Furthermore, the formation of Pt-W/Fe/Ni polarized pairs at the alloy surface via Pt-support interactions induces electron redistribution and accelerates H*/OH* adsorption kinetics, thereby enhancing multiple H2O* dissociation pathways. Consequently, PtASSA@FeNiWPB exhibits ultralow overpotentials of 17 mV (acidic) and 18 mV (alkaline) at -10 mA cm-2, with mass activities 5.8 times (acidic) and 63.6 times (alkaline) higher than commercial Pt/C. Notably, it maintains performance for 600 h in both acidic and alkaline environments, far exceeding W-free counterparts (<50 h) and previous reports, positioning it at the forefront of HER performance. This work establishes a universal strategy for engineering durable electrocatalysts.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"96 1","pages":"e11276"},"PeriodicalIF":29.4,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145182770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Bionic Interface: Considering the Material Mediated Electrical Stimulation of Stem Cells. 仿生界面:考虑材料介导的干细胞电刺激。
IF 29.4 1区 材料科学
Advanced Materials Pub Date : 2025-09-29 DOI: 10.1002/adma.202512399
Kaiwen Zhang,Daniel De Maria,Mercyjayapriya Jebakumar,James Collins,Kate E Fox,Peter C Sherrell,Amy Gelmi
{"title":"The Bionic Interface: Considering the Material Mediated Electrical Stimulation of Stem Cells.","authors":"Kaiwen Zhang,Daniel De Maria,Mercyjayapriya Jebakumar,James Collins,Kate E Fox,Peter C Sherrell,Amy Gelmi","doi":"10.1002/adma.202512399","DOIUrl":"https://doi.org/10.1002/adma.202512399","url":null,"abstract":"Electromaterials, in the field of tissue engineering, are designed to use an electrical signal to induce specific biological responses in cells and tissues. Using materials to control stem cell fate is a substantial field of research within tissue engineering, where stem cell differentiation is controlled through careful design of the material properties (roughness, topography, stiffness, and surface chemistry); the introduction of electromaterials into this field has added an extra dimensionality along with the ability to provide dynamic, temporally controlled cues through electrical stimulation. While significant research has focused on the cell-material interface for electrical stimulation platforms, the underlying reasons why certain materials outperform others remain poorly understood. Most existing studies emphasise mechanical stiffness and chemical composition, often overlooking the role of electronic charge transport. In this perspective, the focus is shifted to the charge transport properties of commonly used electrically conductive materials-such as metal-based electrode, carbon-based composites, and conjugated polymers-and discusses how these mechanisms modulate cellular responses. It is proposed that a deeper understanding of how materials inject, store, and redistribute charge at the interface can offer a new paradigm in designing electrically active scaffolds for more predictable and effective stem cell modulation.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"19 1","pages":"e12399"},"PeriodicalIF":29.4,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145182780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spin and Charge Control of Topological End States in Chiral Graphene Nanoribbons on a 2D Ferromagnet 二维铁磁上手性石墨烯纳米带拓扑末端态的自旋和电荷控制
IF 29.4 1区 材料科学
Advanced Materials Pub Date : 2025-09-29 DOI: 10.1002/adma.202510753
Leonard Edens, Francisco Romero-Lara, Trisha Sai, Kalyan Biswas, Manuel Vilas-Varela, Thomas Frederiksen, Diego Peña, Fabian Schulz, Jose Ignacio Pascual
{"title":"Spin and Charge Control of Topological End States in Chiral Graphene Nanoribbons on a 2D Ferromagnet","authors":"Leonard Edens, Francisco Romero-Lara, Trisha Sai, Kalyan Biswas, Manuel Vilas-Varela, Thomas Frederiksen, Diego Peña, Fabian Schulz, Jose Ignacio Pascual","doi":"10.1002/adma.202510753","DOIUrl":"https://doi.org/10.1002/adma.202510753","url":null,"abstract":"Tailor-made graphene nanostructures can exhibit symmetry-protected topological boundary states that host localized spin-1/2 magnetic moments at half filling. However, one frequently observes charge transfer on coinage metal substrates, which results in closed-shell configurations. Using low-temperature scanning tunneling spectroscopy, it is demonstrated here that pristine topologically nontrivial chiral graphene nanoribbons synthesized directly on the ferromagnet GdAu<sub>2</sub> can either maintain a charge-neutral diradical state, or convert to a singly anionic doublet. As an underlying mechanism, both a work function and an exchange field modulated by the moiré-induced superstructure are identified, as corroborated by Kelvin probe force microscopy and spin-flip spectroscopy. The joint electrostatic and magnetic interactions allow reversibly switching between the three spin multiplicities by atomic manipulation. An effective Hubbard dimer model is introduced that unifies the effects of local electrostatic gating, electron–electron correlation, hybridization and an exchange field to outline the phase diagram of accessible spin states. These results establish a platform for the local control of π-radicals adsorbed on metallic substrates.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"10 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145183046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lithium-Charged Gold Nanoparticles: A New Powerful Tool for Lithium Delivery and Modulation of Glycogen Synthase Kinase 3 Activity. 锂电金纳米颗粒:锂递送和糖原合成酶激酶3活性调节的新有力工具。
IF 29.4 1区 材料科学
Advanced Materials Pub Date : 2025-09-29 DOI: 10.1002/adma.202513858
Antonio Buonerba,Giulia Puliatti,Domenica Donatella Li Puma,Bruno Bandiera,Beatrice Cannata,Maria Elena Marcocci,Nicolina Castagno,Irene Contento,Salvatore Impemba,Mariarosa Scognamiglio,Rocco Di Girolamo,Vincenzo Naddeo,Patrizia Canton,Carmine Capacchione,Laura Sposito,Martina Albini,Francesco Pastore,Silvia Baroni,Alfonso Grassi,Claudio Grassi,Roberto Piacentini
{"title":"Lithium-Charged Gold Nanoparticles: A New Powerful Tool for Lithium Delivery and Modulation of Glycogen Synthase Kinase 3 Activity.","authors":"Antonio Buonerba,Giulia Puliatti,Domenica Donatella Li Puma,Bruno Bandiera,Beatrice Cannata,Maria Elena Marcocci,Nicolina Castagno,Irene Contento,Salvatore Impemba,Mariarosa Scognamiglio,Rocco Di Girolamo,Vincenzo Naddeo,Patrizia Canton,Carmine Capacchione,Laura Sposito,Martina Albini,Francesco Pastore,Silvia Baroni,Alfonso Grassi,Claudio Grassi,Roberto Piacentini","doi":"10.1002/adma.202513858","DOIUrl":"https://doi.org/10.1002/adma.202513858","url":null,"abstract":"\"A Trojan Horse for Lithium Delivery\". Lithium has important pharmacological applications, although its use is severely limited due to its narrow therapeutic window of administrable concentrations. This study presents a novel nanocarrier for this metal cation based on glutathione-stabilized gold nanoparticles (LiG-AuNPs), which enable targeted release of lithium. LiG-AuNPs are easily synthesized, with dimensions of ≈2 nm, with a lithium loading of 2 wt%. These particles show a tendency to aggregate and a narrow size distribution. Aggregates of LiG-AuNPs (a-LiG-AuNPs) are non-toxic to cells at concentrations lower than 2 mg mL-1 and are rapidly internalized into cells, where they release lithium in the cytosol through cation exchange, effectively modulating Glycogen Synthase Kinase-3 (GSK-3β) activity, especially the β isoform. Administration of a-LiG-AuNPs in murine models increased the inhibitory phosphorylation of GSK-3β at Ser9. Intranasal administration of a-LiG-AuNPs modulated GSK-3β activity in the brain, particularly in the hippocampus, without significantly altering plasma lithium levels, even when the administration lasted several months. LiG-AuNPs thus represent a powerful tool for the targeted administration of lithium, enhancing its therapeutic effects in modulating GSK-3β. They have potential applications for treating illnesses depending on GSK-3β (hyper)activation, such as mood disorders, Alzheimer's disease, and viral infections.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"119 1","pages":"e13858"},"PeriodicalIF":29.4,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145182769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Biomimetic Chiral Recognition of Biothiols by Enantiomeric Nanoclusters in Plasma 血浆中对映体纳米团簇对生物硫醇的仿生手性识别
IF 29.4 1区 材料科学
Advanced Materials Pub Date : 2025-09-29 DOI: 10.1002/adma.202514158
Xuejuan Wang, Xiangyang Zhang, Yue Zhao, Xirui Wu, Guangbao Yang, Yanli Zhao, Guofeng Liu
{"title":"Biomimetic Chiral Recognition of Biothiols by Enantiomeric Nanoclusters in Plasma","authors":"Xuejuan Wang, Xiangyang Zhang, Yue Zhao, Xirui Wu, Guangbao Yang, Yanli Zhao, Guofeng Liu","doi":"10.1002/adma.202514158","DOIUrl":"https://doi.org/10.1002/adma.202514158","url":null,"abstract":"The biomimetic chiral recognition and detection of biothiols, such as cysteine, homocysteine, and glutathione, in plasma present significant challenges due to the limited understanding of chiral recognition mechanisms beyond the molecular level. Herein, enantiomeric and twisted octahedron silver nanoclusters (D‐/L‐Ag<jats:sub>6</jats:sub>SP<jats:sub>6</jats:sub>), featuring bichirality at both the molecular and nanoscopic scales, are designed and synthesized by employing a chiral bidentate ligand of thiazolethione enantiomer (D‐ or L‐4‐phenylthiazolidine‐2‐thione, abbreviated as D‐SP or L‐SP) in conjunction with silver acetate. The resulting nanoclusters are further modified with PEG<jats:sub>2000</jats:sub> to produce water‐dispersible D‐Ag<jats:sub>6</jats:sub>SP<jats:sub>6</jats:sub>@PEG and L‐Ag<jats:sub>6</jats:sub>SP<jats:sub>6</jats:sub>@PEG nanoparticles, enabling enantioselective recognition and quantitative determination of various biothiols in plasma through circular dichroism measurements. The study also elucidates the bichiral recognition and determination of biothiols through a ligand‐induced disassembly‐assembly mechanism. Both D‐ and L‐type Ag<jats:sub>6</jats:sub>SP<jats:sub>6</jats:sub>@PEG nanoparticles demonstrate excellent anti‐interference properties for discriminating biothiols using principal component analysis. The bichirality of nanoclusters shows high enantioselectivity in chiral recognition of biothiols and their corresponding enantiomers. This work not only provides a convenient strategy for bichiral recognition and quantitative determination of biothiols in plasma, but also holds promise for developing hierarchically chiral nanomaterials applicable in biomedical engineering, nanomedicine, and drug screening.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"3 1","pages":"e14158"},"PeriodicalIF":29.4,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145182771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design Strategies and Roles of Hydrogels for Sustainable Energy Conversion and Harvesting from Natural and Biological Environments. 水凝胶在自然和生物环境中可持续能量转换和收集的设计策略和作用。
IF 29.4 1区 材料科学
Advanced Materials Pub Date : 2025-09-29 DOI: 10.1002/adma.202510270
Wanheng Lu,Wei Li Ong,Xinglong Pan,Zhiwei Li,Guo Tian,Ghim Wei Ho
{"title":"Design Strategies and Roles of Hydrogels for Sustainable Energy Conversion and Harvesting from Natural and Biological Environments.","authors":"Wanheng Lu,Wei Li Ong,Xinglong Pan,Zhiwei Li,Guo Tian,Ghim Wei Ho","doi":"10.1002/adma.202510270","DOIUrl":"https://doi.org/10.1002/adma.202510270","url":null,"abstract":"The growing demand for sustainable energy has spurred interest in harvesting ambient sources, such as solar radiation, mechanical vibrations, water flow, and temperature gradients, and biological activities, such as motion and respiration. In this context, hydrogels have emerged as promising materials bridging natural and physiological energy environments. Known for their polymer networks and biocompatibility, hydrogels are widely used across bioengineering, biomedicine, and agriculture. Beyond these applications, hydrogels are also gaining attention in environmental and energy-related technologies, including solar-driven desalination, catalysis, and energy generation and storage. Their appeal lies in unique physicochemical properties, stimuli-responsiveness, tunable interfacial chemistry, environmental benignity, and efficient mass and heat transfer while maintaining mechanical compatibility with hybrid or soft-hard systems. Despite these promising attributes, few reviews focus on the role of hydrogels in energy harvesting. This review addresses that gap by examining hydrogel-based technologies driven by environmental stimuli and emphasizing their unique contributions to energy conversion. It offers insights into design strategies and recent advancements in functional hydrogels, highlighting opportunities and challenges in this field. As hydrogel-based energy harvesting evolves, innovative design, deeper mechanistic understanding, and interdisciplinary integration are needed to unlock its potential.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"20 1","pages":"e10270"},"PeriodicalIF":29.4,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145182776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Pupillary Light Reflex Inspired Self-Adaptive Spiking Visual Neuron. 瞳孔光反射激发的自适应脉冲视觉神经元。
IF 29.4 1区 材料科学
Advanced Materials Pub Date : 2025-09-29 DOI: 10.1002/adma.202516342
Lesheng Qiao,Haotian Long,Kailu Shi,Baocheng Peng,Hangyuan Cui,Mengjiao Pei,Li Zhu,Qing Wan,Changjin Wan
{"title":"A Pupillary Light Reflex Inspired Self-Adaptive Spiking Visual Neuron.","authors":"Lesheng Qiao,Haotian Long,Kailu Shi,Baocheng Peng,Hangyuan Cui,Mengjiao Pei,Li Zhu,Qing Wan,Changjin Wan","doi":"10.1002/adma.202516342","DOIUrl":"https://doi.org/10.1002/adma.202516342","url":null,"abstract":"The development of neuromorphic visual systems aims to address the energy-efficiency and adaptability constraints in machine vision. However, artificial visual neurons in these systems mostly encode amplitude-modulated signals and adjust the perception range through passive gate voltage modulation, resulting in low biological fidelity. A pupillary-light-reflex-inspired self-adaptive spiking visual neuron with a superior perception range and active visual adaptation is proposed. The device functionally emulates the hierarchical visual adaptation process of human eyes through the active optical regulation of a photochromic film, photoelectric conversion through an IGCdO-based transistor, and spiking encoding through a TaOX-based memristor-based memristor). This configuration possesses a perception range of 160 dB and active visual adaptation under extreme light intensity conditions ranging from 0.2 µW cm-2 to 1.64 W cm-2, outperforming previous artificial visual neurons. The advantage of active visual adaptation has been validated by integration with a spiking neural network, achieving an 86% recognition accuracy in classification tasks, a 66% improvement over non-adaptive counterparts. This bio-inspired design would endow machine vision systems with a high-level of biological fidelity.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"99 1","pages":"e16342"},"PeriodicalIF":29.4,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145182773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fe/Co Co-Doping Engineering for Corrosion-Resistant and Effective Seawater Electrolysis. Fe/Co共掺杂工程用于耐腐蚀有效的海水电解。
IF 29.4 1区 材料科学
Advanced Materials Pub Date : 2025-09-29 DOI: 10.1002/adma.202515156
Jianxi Lu,Zhichao Yu,Xiaotian Wei,Xuewei Zhang,Xin Wang,Kai Liu,Yaohai Cai,Hui Pan,Dong Liu,Zhenbo Wang
{"title":"Fe/Co Co-Doping Engineering for Corrosion-Resistant and Effective Seawater Electrolysis.","authors":"Jianxi Lu,Zhichao Yu,Xiaotian Wei,Xuewei Zhang,Xin Wang,Kai Liu,Yaohai Cai,Hui Pan,Dong Liu,Zhenbo Wang","doi":"10.1002/adma.202515156","DOIUrl":"https://doi.org/10.1002/adma.202515156","url":null,"abstract":"Direct seawater electrolysis is a promising strategy for sustainable hydrogen production, yet it faces critical challenges in catalyst design, including scalability, chloride corrosion resistance, and cost efficiency. A one-step interfacial redox strategy is reported to construct Fe/Co co-doped Ru@Ni(OH)2 electrodes (Ru@FeCo-Ni(OH)2), enabling precise control of metal coordination environments while ensuring industrial-scale manufacturability. This method enables the fabrication of 5000 cm2 electrodes with no performance deviation, demonstrating compatibility with commercial electrolyzers. The Ru@FeCo-Ni(OH)2 electrodes exhibit remarkable durability (>3000 h) and achieve hydrogen production at $0.87 per kg using natural seawater from the South China Sea (unpurified, with KOH added), surpassing the U.S. Department of Energy's 2031 cost target of $1 per kg. Operando spectroscopy and DFT calculations reveal a synergistic co-doping mechanism: 1) d-band center downshifting (ΔE = 0.68 eV) optimizes hydrogen adsorption for superior hydrogen evolution reaction performance, while 2) accelerated surface reconstruction forms chloride-resistant oxyhydroxide layers, improving oxygen evolution reaction efficiency. This work establishes a new paradigm in bifunctional catalyst design, providing mechanistic insights into active site evolution and a scalable pathway for cost-effective green hydrogen production directly from seawater.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"95 1","pages":"e15156"},"PeriodicalIF":29.4,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145182774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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