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Janus design toward fabricating ferromagnetic graphene nanoribbons
IF 17.3 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-04-02 DOI: 10.1016/j.matt.2025.102030
Huili Ren , Jing Li , Lifeng Chi
Janus, the two-faced Roman god symbolizing the past and future, has inspired material science with “Janus” structures, characterized by differing properties on opposite sides. Reporting in Nature, Lu, Louie, Sakaguchi, and co-workers recently realized this concept in an asymmetrical one-dimensional graphene strip with contrasting edges, termed the “Janus graphene nanoribbon,” which exhibits a unique and intriguing magnetism.
雅努斯(Janus)是罗马神话中的双面神,象征着过去和未来,他的 "雅努斯 "结构给材料科学带来了灵感。据《自然》杂志报道,Lu、Louie、Sakaguchi 和合作者最近在一种具有对比边缘的不对称一维石墨烯条带中实现了这一概念,这种条带被称为 "雅努斯石墨烯纳米带",它表现出一种独特而有趣的磁性。
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引用次数: 0
Exploring the soft cradle effect and ionic transport mechanisms in the LiMXCl4 superionic conductor family
IF 17.3 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-04-02 DOI: 10.1016/j.matt.2025.102001
KyuJung Jun , Grace Wei , Xiaochen Yang , Yu Chen , Gerbrand Ceder
LiMXCl4, a recently discovered lithium superionic conductor, achieves Li conductivity up to 12.4 mS/cm at room temperature. Notably, LiNbOCl4 features flexible, rotating polyhedra, potentially explaining its high ionic conductivity. However, the generalizability of these findings across different chemistries and the direct link between polyhedra rotations and Li-ion mobility remain unclear. In this study, we explore various M-cation and X-anion substitutions in the LiMXCl4 system, identifying fluoro-chlorides as promising for enhancing electrochemical stability while maintaining high ionic conductivity. Meyer-Neldel analysis on ab initio simulations reveals that LiMXCl4 outperforms existing halide conductors, with projected conductivities of 10–100 mS/cm. Our probabilistic analysis of lithium-ion hops and small-angle tilting events reveals a “soft cradle effect,” where weakly bound M-octahedra tilt in conjunction with Li-ion hops, optimizing the energy landscape. This work provides fundamental insights into the factors driving high ionic conductivity in non-close-packed oxyhalide systems and suggests exciting directions for further improving these materials.
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引用次数: 0
Electrostatic breakdown at liquid-solid-gas triple-phase interfaces owing to contact electrification
IF 17.3 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-04-02 DOI: 10.1016/j.matt.2025.102007
Cuiying Ye , Di Liu , Yikui Gao , Fan Liu , Hongxuan Xu , Tao Jiang , Zhong Lin Wang
Electrification at water-solid interfaces, which enhances interfacial physical and chemical reactions, plays a crucial role in energy fields. However, the fundamental limits on charge transfer due to contact electrification (CE) at these interfaces remain poorly understood. Here, we first demonstrate electrostatic breakdown (EB) in the vicinity of liquid-solid-gas interfaces, which is attributed to the enhanced electric field in the gas close to the triple-phase contact line. Furthermore, we discover the significant impact of distant conductors on the interface electric field depending on their locations and grounding statuses and observe two types of breakdowns. Guided by an established physical model of breakdown, we achieve a record-high charge density of 1.36 mC m−2 in CE at water-insulator interfaces. Finally, we show the broad impact of EB on energy harvesting, surface wettability, and droplet motion at water-insulator interfaces. This previously unexplored EB phenomenon could offer new insights into interfacial charge and energy exchange at water-solid interfaces.
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引用次数: 0
Microneedles with an anisotropic porous microstructure facilitate the transdermal delivery of small molecules, lipid nanoparticles, and T cells
IF 17.3 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-04-02 DOI: 10.1016/j.matt.2025.102038
Tianli Hu , Ka Sin Lui , Eira Beryle Ko , Yayi Zhao , Qizheng Zhang , Huaxin Yang , Mengjia Zheng , Hao Chang , Baolin Guo , Allen Ka Loon Cheung , Chenjie Xu
Porous microneedles (MNs) offer optimal performance for drug delivery and biofluid sampling. However, current porous MNs suffer from randomly interconnected pores, and existing fabrication methods lack control over pore diameter and orientation. This study employs a freeze-casting technique to precisely control these parameters in MNs, inspired by the anisotropic porous structure of wood xylem. This specialized microstructure enables rapid liquid absorption from the tips to the base within seconds, making it an effective tear-sampling tool to monitor tear biomarkers—a capability confirmed in rat models of dry-eye disease and diabetes. Additionally, these anisotropic porous MNs facilitate the active loading of various drugs, including γδ T cells, from the base to the tips without the need for specialized equipment. The delivery of γδ T cells via MNs has shown efficacy against tumors in both xenograft melanoma and pleural mesothelioma mouse models, presenting a novel approach to adoptive cell therapy.
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引用次数: 0
Evolving Matter editorial strategy to reflect the materials community
IF 17.3 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-04-02 DOI: 10.1016/j.matt.2025.102059
Steve Cranford
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引用次数: 0
Bioinspired gas-receptor synergistic interaction for high-performance two-dimensional neuromorphic devices
IF 17.3 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-04-02 DOI: 10.1016/j.matt.2025.102044
Bochen Zhao , Zeqin Xin , Yi-Chi Wang , Chenghui Wu , Wenxin Wang , Run Shi , Ruixuan Peng , Yonghuang Wu , Longlong Xu , Ting Pan , Zonglin Li , Lin Gu , Kai Liu
Two-dimensional (2D) transition-metal dichalcogenide (TMDC)-based artificial synaptic devices are promising for neuromorphic computing. However, 2D TMDCs are difficult to heavily dope reversibly, which limits their resistive switching performances. Inspired by the biological gas-receptor signaling pathway, we report a gas (H2O)-receptor (defect) synergistic interaction (GRSI) mechanism to greatly enhance the resistive switching capabilities of 2D TMDC-based memristors by over 10,000 times. Employing the GRSI, the synaptic device emulates multiple synaptic plasticities and exhibits outstanding long-term potentiation and depression with a large dynamic range (>200), multiple resistance states (28 levels), and ultralow programming/reading powers (Pprog < 100 pW, Pread < 1 pW). As an artificial nociceptor, the device precisely simulates characteristic behaviors of biological nociceptors. More importantly, the GRSI is universally applicable to various 2D TMDCs including MoS2, WS2, SnS2, and ReS2. This work provides a bioinspired solution to high-performance, multifunctional 2D neuromorphic devices, stepping further toward their practical applications.
基于二维过渡金属二卤化物(TMDC)的人工突触器件在神经形态计算领域大有可为。然而,二维 TMDC 难以可逆地大量掺杂,从而限制了其电阻开关性能。受生物气体受体信号通路的启发,我们报告了一种气体(H2O)-受体(缺陷)协同作用(GRSI)机制,该机制可将基于二维 TMDC 的忆阻器的电阻开关能力大大提高 10,000 倍以上。利用 GRSI 机制,该突触器件可模拟多种突触可塑性,并以较大的动态范围(>200)、多种电阻状态(28 级)和超低的编程/读取功率(Pprog < 100 pW,Pread < 1 pW)表现出出色的长期延时和抑制能力。作为一种人造痛觉感受器,该装置可以精确模拟生物痛觉感受器的特征行为。更重要的是,GRSI 普遍适用于各种二维 TMDC,包括 MoS2、WS2、SnS2 和 ReS2。这项工作为高性能、多功能二维神经形态器件提供了一种生物启发解决方案,进一步推动了器件的实际应用。
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引用次数: 0
Navigating microalgal biohybrids through confinements with magnetic guidance
IF 17.3 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-04-02 DOI: 10.1016/j.matt.2025.102052
Mukrime Birgul Akolpoglu , Saadet Fatma Baltaci , Ugur Bozuyuk , Selcan Karaz , Metin Sitti
In the natural world, microorganisms constantly navigate through confined spaces—such as those found in tissues, biological gels, and soil—yet their behavior in such environments remains poorly understood. Here, we explore this phenomenon by examining the navigation of magnetic microalgal biohybrids in constrained microenvironments. By leveraging the inherent propulsion of green microalgae and external steering capabilities acquired through the magnetization of microalgal cells, our biohybrids exhibit efficient navigation in viscous and confined microenvironments. Through high-yield fabrication and magnetic manipulation, we show precise control over their movement. Our findings reveal distinct navigation patterns influenced by magnetic guidance, namely backtracking and crossing, shedding light on the unexplored dynamics of confined locomotion assisted by magnetism. Our work highlights the significance of understanding microalgal biohybrid swimming behavior, offering crucial insights for future biotechnological and biomedical applications requiring precise navigation in confined environments.
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引用次数: 0
Starfish-inspired magnetoelastic generator array for ocean wave energy harvesting
IF 17.3 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-04-02 DOI: 10.1016/j.matt.2025.102010
Il Woo Ock , Zhaoqi Duan , Jing Xu , Xun Zhao , Jun Chen
The direction and frequency drift of ocean waves presents considerable challenges to existing platform technologies to utilize such energy. Here, we present a starfish-inspired magnetoelastic generator (MEG) array floating on the ocean surface, efficiently converting irregular ocean wave fluctuations into electricity for sustainable water splitting and hydrogen (H2) fuel production. Within the starfish-inspired MEG array system, each MEG unit that harnesses the magnetoelastic effect to efficiently convert local ocean wave energy into electricity with a voltage of 12.52 mV cm⁻2 and a current of 0.24 mA cm⁻2 at 2 Hz. By integrating eight such units onto the tube feet, the starfish-inspired system achieved a maximum peak voltage of 4.33 V, charged a capacitor to 2.42 V within 80 s and electrolyzed the water to continuously produce H2 at a rate of 1.18 μL min⁻1. The starfish-inspired MEG array is a milestone for ocean wave energy harvesting, promoting H2 economics and carbon neutrality.
海洋波浪的方向和频率漂移给利用这种能量的现有平台技术带来了巨大挑战。在这里,我们展示了一种受海星启发的磁弹性发电机(MEG)阵列,它漂浮在海面上,能有效地将不规则的海浪波动转化为电能,用于可持续的水分离和氢(H2)燃料生产。在受海星启发的 MEG 阵列系统中,每个 MEG 单元都能利用磁弹性效应有效地将局部海浪能量转化为电能,电压为 12.52 mV cm-2,电流为 0.24 mA cm-2,频率为 2 Hz。通过在管脚上集成八个这样的单元,受海星启发的系统获得了 4.33 V 的最大峰值电压,在 80 秒内将电容器充电至 2.42 V,并以 1.18 μL min-1 的速率连续电解水以产生 H2。受海星启发的 MEG 阵列是海洋波浪能收集的一个里程碑,促进了 H2 经济性和碳中和。
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引用次数: 0
Sub-nm kinetically controlled liquid metal printing of ternary antimony indium oxide transistors
IF 17.3 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-04-02 DOI: 10.1016/j.matt.2025.102003
Samuel W. Ong , Simon A. Agnew , Md Saifur Rahman , William J. Scheideler
Two-dimensional (2D) metal oxide semiconductors offer a superlative combination of high electron mobility and visible-range transparency uniquely suitable for flexible transparent electronics. Synthesis of these ultrathin (<3 nm) semiconductors by Cabrera-Mott oxidation of liquid metals could enable emerging device applications but requires the precise design of their electrostatics at the nanoscale. This study demonstrates sub-nanometer-level control over the thickness of semiconducting 2D antimony-doped indium oxide (AIO) by manipulating the kinetics of Cabrera-Mott oxidation through variable-speed liquid metal printing at plastic-compatible temperatures (175°C). By modulating both the growth kinetics and doping, we engineer the conductivity and crystallinity of AIO for integration in ultrathin channel transistors exhibiting exceptional steep turn-on, on-off ratios > 106 and an outstanding average mobility of 34.7 ± 12.9 cm2/Vs. This result shows the potential for kinetically controlling 2D oxide synthesis for various high-performance optoelectronic device applications.
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引用次数: 0
Engraving patterned graphene for fabric-integrated electronics
IF 17.3 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-04-02 DOI: 10.1016/j.matt.2025.102061
Shixing Yuan , Lei Wei
To address the challenges of scalability and customization in manufacturing textile electronics, recent innovations have introduced a patterned graphene fabrication approach combining transfer printing and laser engraving. This technique demonstrates broad fabric compatibility and low device resistance, providing suitable paradigms for developing integrated fabric-based electronics.
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引用次数: 0
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Matter
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