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Smart cushioning device integrating self-folding origami honeycomb structure and inductor-capacitor passive wireless sensor 集成自折叠折纸蜂窝结构和电感-电容无源无线传感器的智能缓冲装置
IF 14.6 1区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2026-01-09 DOI: 10.1038/s41528-025-00527-z
Hiroaki Minamide, Daichi Naritomi, Shuta Okamoto, Satoshi Motoyama, Hiroki Shigemune
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引用次数: 0
Ultrasound-transparent neural interfaces for multimodal interaction 用于多模态交互的超声透明神经接口
IF 14.6 1区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2026-01-08 DOI: 10.1038/s41528-025-00517-1
Raphael Panskus, Andrada Iulia Velea, Lukas Holzapfel, Christos Pavlou, Qingying Li, Chaoyi Qin, Flora Nelissen, Rick Waasdorp, David Maresca, Valeria Gazzola, Vasiliki Giagka
Neural interfaces that unify diagnostic and therapeutic functionalities hold particular promise for advancing both fundamental neuroscience and clinical neurotechnology. Functional ultrasound imaging (fUSI) has recently emerged as a powerful modality for high-resolution, non-invasive monitoring of brain function and structure. However, conventional metal-based microelectrodes typically impede ultrasound propagation, limiting compatibility with fUSI. Here, we present flexible, ultrasound-transparent neural interfaces that retain practical metal thicknesses while achieving high acoustic transparency. We introduce a theoretical and simulation-based framework to investigate the conditions under which commonly used polymers and metals in neural interfaces can become acoustically transparent. Based on these insights, we propose design guidelines that maximise ultrasound transmission through soft neural interfaces. We experimentally validate our approach through immersion experiments and by demonstrating the acoustic transparency of a suitably engineered interface using fUSI in phantom and in vivo experiments. Finally, we discuss the potential extension of this approach to therapeutic focused ultrasound (FUS). This work establishes a foundation for the development of multimodal neural interfaces with enhanced diagnostic and therapeutic capabilities, enabling both scientific discovery and translational impact.
统一诊断和治疗功能的神经接口在推进基础神经科学和临床神经技术方面具有特殊的前景。功能性超声成像(fUSI)最近成为一种高分辨率、无创监测大脑功能和结构的强大方式。然而,传统的金属基微电极通常会阻碍超声波传播,限制了与fUSI的兼容性。在这里,我们提出了灵活的、超声透明的神经界面,它在保持实际金属厚度的同时实现了高的声透明度。我们引入了一个基于理论和仿真的框架来研究神经界面中常用的聚合物和金属可以变得声透明的条件。基于这些见解,我们提出了通过软神经接口最大化超声传输的设计指南。我们通过浸入式实验验证了我们的方法,并在幻影和体内实验中使用fUSI展示了适当设计界面的声学透明度。最后,我们讨论了这种方法在治疗聚焦超声(FUS)中的潜在扩展。这项工作为多模态神经接口的发展奠定了基础,增强了诊断和治疗能力,使科学发现和转化影响成为可能。
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引用次数: 0
Adaptive 3D printing of moldable conductive polymer composite for highly sensitive soft sensors with a broad working range 适用于高灵敏度宽工作范围软传感器的可成型导电聚合物复合材料自适应3D打印
IF 14.6 1区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2026-01-08 DOI: 10.1038/s41528-025-00523-3
Yuanhang Yang, Yuxuan Tang, Kai Xue, Junwei Li, Shun Duan, Changjin Huang
Conductive putty-like polymer composites have recently received considerable attention in wearable electronics, soft robotics, and energy storage due to their unique electrical and mechanical properties. Their viscoelasticity enables direct 3D printing of intricate, customizable conductive pathways, yet printing in high-viscosity polymer solutions remains challenging. Inspired by clay, we develop a moldable conductive polymer composite (MCPC) with tunable viscoelasticity, shear-thinning behavior, and high conductivity by blending liquid Ecoflex with graphite powders. By extruding MCPC onto liquid Ecoflex of various viscosities, we demonstrate a facile strategy for fabricating soft sensors with spatially controlled conductive pathways. These sensors exhibit a wide strain response (0.05%-150%), high sensitivity (gauge factor >15000), and nearly 100% electrical repeatability over 1000 cycles. They reliably monitor human movement and control robotic hands. Our approach provides a new strategy for fabricating soft sensors with enhanced mechanical and electrical properties, expanding possibilities for next-generation wearable and bio-integrated technologies.
导电腻子状聚合物复合材料由于其独特的电气和机械性能,最近在可穿戴电子产品、软机器人和能量存储领域受到了相当大的关注。它们的粘弹性可以直接3D打印复杂的、可定制的导电通道,但在高粘度聚合物溶液中打印仍然具有挑战性。受粘土的启发,我们开发了一种可成型的导电聚合物复合材料(MCPC),通过将液体Ecoflex与石墨粉末混合,具有可调的粘弹性、剪切减薄行为和高导电性。通过将MCPC挤压到不同粘度的液体Ecoflex上,我们展示了一种制造具有空间控制导电通路的软传感器的简便策略。这些传感器具有宽应变响应(0.05%-150%),高灵敏度(测量因子>15000),并且在1000个周期内具有近100%的电气重复性。它们可靠地监测人类的运动并控制机器人的手。我们的方法为制造具有增强机械和电气性能的软传感器提供了一种新策略,扩大了下一代可穿戴和生物集成技术的可能性。
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引用次数: 0
Deformation-adaptive pressure sensors based on multi-level discrete sensing arrays for morphing electronics and human–machine interaction 基于多级离散传感阵列的变形自适应压力传感器,用于变形电子和人机交互
IF 14.6 1区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2026-01-05 DOI: 10.1038/s41528-025-00522-4
Changjiang Li, Jie Zhang, Haocheng Yu, Fengwan Zhao, Zhe Xu, Xiren Wei, Hao Wang, Xiaoming Chen, Zuo-Guang Ye, Xiaohui Zhang, Ming Liu
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引用次数: 0
Mechanosensory neuron implemented by a single freestanding epitaxial SrTiO3 capacitor 由单一独立外延SrTiO3电容器实现的机械感觉神经元
IF 14.6 1区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2026-01-03 DOI: 10.1038/s41528-025-00520-6
Sohwi Kim, Chansoo Yoon, Jihoon Jeon, Woohyeon Ryu, Gwang Taek Oh, Bae Ho Park
Biological mechanoreceptors convert tissue strain into distinct spike trains. In contrast, their soft electronic counterparts still rely on discrete components for sensing, preprocessing, and neuronal firing. Here, we integrate these functional components into a single and scalable device by combining mechano-electric transduction and volatile threshold switching within an Ag/freestanding epitaxial SrTiO3/Pt membrane laminated onto a flexible polyethylene naphthalate substrate. Tensile strain (0–2.6%) lowers Ag⁺ migration energy and reduces the switching voltage from 1.04 to 0.24 V. Under constant bias, the spike frequency increases by more than two orders of magnitude, enabling tunable, self-oscillating ‘neurons’ operating below 100 pJ per spike, comparable to biological mechanoreceptors and ~25× more efficient than current flexible sensors. The device maintains its full functionality after over 400 bending cycles, demonstrating its potential as a mechanically programmable, ultralow-power building block for next-generation electronic skins, soft robotics, and bio-integrated prosthetics.
生物机械感受器将组织菌株转化为不同的刺突序列。相比之下,它们的软电子产品仍然依赖于离散元件来进行传感、预处理和神经元放电。在这里,我们通过将机电转导和挥发性阈值开关结合在Ag/独立外延SrTiO3/Pt膜层压在柔性聚萘二甲酸乙二醇酯衬底上,将这些功能组件集成到一个单一的可扩展器件中。拉伸应变(0-2.6%)降低了Ag⁺的迁移能,并将开关电压从1.04降低到0.24 V。在恒定偏置下,脉冲频率增加了两个数量级以上,使可调谐的、自振荡的“神经元”在每个脉冲低于100 pJ的情况下工作,与生物机械感受器相当,比目前的柔性传感器效率高25倍。该设备在经过400多次弯曲循环后仍能保持其全部功能,证明了其作为下一代电子皮肤、软机器人和生物集成假肢的机械可编程、超低功耗构建块的潜力。
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引用次数: 0
Self-assembled aqueous liquid metal inks for stretchable conductors and circuits 可伸缩导体和电路用自组装水性液态金属油墨
IF 14.6 1区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2026-01-03 DOI: 10.1038/s41528-025-00506-4
Dandan Pei, Yang Dai, Fanqi Dai, Kui Liang, Yangyong Zhao, Yanzhao Li
Liquid metals (LMs) characterized with high conductivity and inherent deformability are potential materials for stretchable electronics and circuits. However, technological challenges associated with facile and efficient patterning of LMs currently impede their widespread implementation. Here, we present an environmentally friendly approach for the facile fabrication of stretchable conductors and circuits through the self-assembly of aqueous LM inks. This process leverages the anisotropic surface characteristics that drive the movement of the ink from hydrophobic to hydrophilic regions. Simultaneously, the ink with a stabilizer mitigated the premature deposition of LM particles. This culminated in the precise deposition of LM particles in accordance with the desired patterns on the substrate. The resulting LM patterns exhibit high resolution (<100 μm line width), high conductivity (2.0 × 10⁵ S m−1), and excellent electromechanical durability. Further demonstrated applications including stretchable displays, three-dimensional touch sensors and soft actuators showcase the versatility of this fabrication for stretchable electronics.
液态金属(LMs)具有高导电性和固有的可变形性,是可拉伸电子和电路的潜在材料。然而,与lm的便捷和高效模式相关的技术挑战目前阻碍了它们的广泛实施。在这里,我们提出了一种环境友好的方法,通过水LM墨水的自组装来方便地制造可拉伸导体和电路。该工艺利用各向异性表面特性,驱动油墨从疏水区域向亲水区域的运动。同时,加入稳定剂的油墨减轻了LM颗粒的过早沉积。这最终使LM颗粒按照所需的图案精确沉积在衬底上。所得LM图案具有高分辨率(线宽<100 μm)、高电导率(2.0 × 10 5m−1)和优异的机电耐用性。进一步演示的应用包括可拉伸显示器,三维触摸传感器和软致动器,展示了这种制造可拉伸电子产品的多功能性。
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引用次数: 0
Model representation in amorphous metal oxide thin-film transistors: a critical review 模型表示在非晶金属氧化物薄膜晶体管:一个重要的评论
IF 14.6 1区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-12-30 DOI: 10.1038/s41528-025-00515-3
Hassan Ul Huzaibi, Su-Ting Han, Meng Zhang
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引用次数: 0
Ultrathin bending sensor with ultrahigh robustness and reliability for robotic applications 具有超高鲁棒性和可靠性的超薄弯曲传感器,适用于机器人应用
IF 14.6 1区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-12-24 DOI: 10.1038/s41528-025-00498-1
Hao Liu, Masahito Takakuwa, Michitaka Yamamoto, Shinsuke Nakashima, Zhengyi Jiang, Tomoyuki Yokota, Takao Someya, Toshihiro Itoh, Seiichi Takamatsu
Soft bending sensors offer high sensitivity and a large deformation range, making them ideal for robotics and healthcare. However, existing sensors made from organic materials often fail under large tensile stresses and long-term bending, limiting their real-world applications. This paper presents the 100,000+ cycle-reliable bending sensor (100k+ CRBS), which leverages the flexibility and elastic response of an ultrathin piezoresistive silicon gauge integrated with highly resilient polyimide film by the water vapor plasma-assisted bonding method for both high robustness and reliability. The 100k+ CRBS endured over 100,000 bending cycles at a radius of 5 mm. Additionally, it achieved a remarkable minimum bending radius of 0.4 mm. It also exhibited a mechanical limit of 300 MPa, while maintaining stable operation below 94 MPa (<3% strain). These features enable precision motion capture in demanding applications including human–machine interaction, healthcare and rehabilitation, and smart industry and automation.
软弯曲传感器提供高灵敏度和大变形范围,使其成为机器人和医疗保健的理想选择。然而,现有的由有机材料制成的传感器经常在大的拉伸应力和长期弯曲下失效,限制了它们在现实世界中的应用。本文介绍了100,000+循环可靠的弯曲传感器(100k+ CRBS),它利用超薄压阻硅表的灵活性和弹性响应,通过水蒸气等离子体辅助键合方法将高弹性聚酰亚胺薄膜集成在一起,具有高鲁棒性和可靠性。100k+ CRBS在5毫米的半径下承受了超过100,000次的弯曲循环。此外,它还实现了0.4 mm的最小弯曲半径。它的力学极限为300 MPa,在94 MPa(<3%应变)以下保持稳定运行。这些功能可在要求苛刻的应用中实现精确的动作捕捉,包括人机交互、医疗保健和康复以及智能工业和自动化。
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引用次数: 0
A skin-inspired, capacitive array for tactile modulus detection via a scalable rigid-island architecture 一种皮肤启发的电容阵列,通过可扩展的刚性岛结构用于触觉模量检测
IF 14.6 1区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-12-23 DOI: 10.1038/s41528-025-00503-7
Arielle Berman, Baiyu Shi, Tomasz Zaluska, Annika Yong, Sean Clees, Chengyi Xu, Levent Beker, Zhenan Bao
Tactile sensors that can detect material softness, or elastic modulus, are critical for intelligent robots and embodied neuroprosthetics. Artificial electronic skins (eSkins) that mimic the cutaneous stretchability and mechanosensory apparatus can facilitate human-like touch perception in these applications. Existing devices primarily rely on the piezoresistive mechanism to detect changes in pressure and lateral strain upon contact with a target object. However, resistors are highly susceptible to differences in conductive nanomaterial morphology which compromises sample-to-sample repeatability and introduces large cyclic hysteresis. Furthermore, their fabrication and interconnection complexity hinder the development of scalable, high-density arrays. Here, we overcome these limitations with a stretchable, fully capacitive sensing array that uses rigid islands in a novel architecture to obtain multimodal information. In this configuration, normal pressure is transduced to the capacitive pixels with rigid islands while free-standing pixels increase in capacitance as a function of out-of-plane deformation induced by the softness of the touched object. Electrode dimensions and layout are investigated to determine their effect on the accurate differentiation of material moduli (72 kPa to 1.36 MPa). The sensor output trend is maintained even after a five-fold miniaturization of the array sensing area from a 25 mm to a 5 mm square. Finally, the device is integrated with a dynamic robotic gripper for real-time material classification. Our unique eSkin sensor provides sophisticated feedback while minimizing data acquisition and analysis complexity, which is advantageous for efficient training of future machine learning algorithms.
可以检测材料柔软度或弹性模量的触觉传感器对智能机器人和嵌入式神经假肢至关重要。人造电子皮肤(eSkins)模仿皮肤的可拉伸性和机械感觉装置,可以促进这些应用中的类人触摸感知。现有的设备主要依靠压阻机制来检测与目标物体接触时压力和侧向应变的变化。然而,电阻器极易受到导电纳米材料形态差异的影响,这会影响样品到样品的可重复性并引入大的循环滞后。此外,它们的制造和互连的复杂性阻碍了可扩展的高密度阵列的发展。在这里,我们用一种可拉伸的全电容传感阵列克服了这些限制,该阵列在一种新颖的架构中使用刚性岛来获取多模态信息。在这种结构中,正常压力被传导到具有刚性岛的电容像素,而独立像素的电容作为被触摸物体的柔软性引起的面外变形的函数而增加。研究了电极尺寸和布局对材料模量(72 kPa至1.36 MPa)精确区分的影响。即使在阵列传感面积从25毫米缩小到5毫米方形的5倍之后,传感器输出趋势仍保持不变。最后,该装置与动态机器人抓取器集成,用于实时物料分类。我们独特的eSkin传感器提供复杂的反馈,同时最大限度地减少数据采集和分析的复杂性,这有利于未来机器学习算法的有效训练。
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引用次数: 0
Injectable eutectogel for high-quality scalp electroencephalogram monitoring 可注射共泰可用于高质量头皮脑电图监测
IF 14.6 1区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-12-22 DOI: 10.1038/s41528-025-00516-2
Yuli Wang, Zonglei Wang, Junhong Yi, Shihong Lin, Wenqing Yan, Jiawei Yang, Qingyuan Sun, Jian Luo, Yujie Zhang, Pengcheng Zhou, Zongman Zhang, Zichong Ji, Meiqiong Zheng, Leqi Li, Xinyuan Ye, Hossam Haick, Yan Wang
Hydrogels emerge as a promising electrode material for scalp electroencephalogram monitoring, which stands as a pivotal technique in neuroscience, enabling real-time monitoring of brain activity. However, conventional hydrogel-enabled electrodes suffer from low scalp compliance, high scalp-electrode impedance, and inferior interfacial stability. Here, we propose an injectable eutectogel-enabled electrode for high-quality, long-term scalp electroencephalogram monitoring. This gelatin-based eutectogel exhibits temperature-controlled reversible phase transitions, enabling rapid in-situ gelation on the scalp and forming a robust self-adhesive interface. It demonstrates exceptional mechanical durability (1000 cycles at 100% strain), robust adhesion (0.7 N cm−1 on human epidermis and 1.7 N cm−1 on Ag/AgCl electrode), and outstanding anti-drying properties (negligible water loss after 7 days). Additionally, the eutectogel shows superior healing properties, antibacterial properties, and recyclability. Furthermore, it exhibits remarkably low scalp-electrode contact impedance (<20 kΩ at 16 Hz). The eutectogel is injected on the human scalp with dense hair for high-fidelity electroencephalogram recording, enabling long-term monitoring. Its practical applications include monitoring visual evoked potentials, steady-state visual evoked potentials, somatosensory evoked potentials, slow vertex response, auditory brainstem response, multi-channel cognitive electroencephalogram during various daily activities, and event-related potentials P300 signals. The eutectogel-enabled electrode provides a versatile and reliable solution for long-term electroencephalogram monitoring in diverse clinical and research settings.
水凝胶是一种很有前途的电极材料,用于头皮脑电图监测,是神经科学领域的一项关键技术,可以实时监测大脑活动。然而,传统的水凝胶电极存在头皮顺应性低、头皮-电极阻抗高和界面稳定性差的问题。在这里,我们提出了一种可注射的共析凝胶电极,用于高质量,长期的头皮脑电图监测。这种基于明胶的共聚物表现出温度控制的可逆相变,能够在头皮上快速原位凝胶化,形成坚固的自粘界面。它具有优异的机械耐久性(在100%应变下循环1000次),强大的附着力(人体表皮上0.7 N cm−1,Ag/AgCl电极上1.7 N cm−1),以及出色的抗干燥性能(7天后可忽略水分损失)。此外,共聚物具有优异的愈合性能、抗菌性能和可回收性。此外,它还具有非常低的头皮-电极接触阻抗(在16 Hz时<20 kΩ)。eutectol被注射在人类浓密头发的头皮上,用于高保真脑电图记录,实现长期监测。其实际应用包括监测视觉诱发电位、稳态视觉诱发电位、体感诱发电位、慢顶点反应、听觉脑干反应、日常各种活动中的多通道认知脑电图、事件相关电位P300信号等。共析凝胶使电极提供了一个多功能和可靠的解决方案,长期脑电图监测在不同的临床和研究设置。
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npj Flexible Electronics
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