Manipulating Nanowire Structures for Anti-Interference and Bimodal Flexible Tactile Sensors

IF 9.1 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nano Letters Pub Date : 2025-09-17 DOI:10.1021/acs.nanolett.5c03721

Wen-Ze Wang, , , Xin-Lin Li, , , Qi-Rui Yang, , and , Jian-Wei Liu*,

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Abstract

Flexible tactile sensors (FTS) excel in precise signal detection for biomimetic prosthetics, healthcare, and wearable devices yet struggle to sense single tactile signals amid interference while preserving sensitivity. Here, inspired by scorpions, we report ultrasensitive bimodal FTS with superior anti-interference capability, leveraging interface assembly techniques combined with mechanical strategies. Significantly, precise control over the preparation of large-area, highly ordered silver nanowires (Ag NWs) was achieved through our innovative and feasible strategy. The formation of crack structure in the Mode I enables an ultrasensitive sensing performance (GF = 7.58 × 10⁵; detection limit: 0.01%). Conversely, the ordered nanowires with a 3D buckled structure in Mode II make FTS insensitive to various external stimuli. Moreover, our FTS achieves exceptional anti-interference capability to other stimuli (temperature, humidity, and impacts). More importantly, the FTS is applied to monitor the wrist joint and spinal movements, showcasing their immense potential in intelligent healthcare and disease prevention.

Abstract Image

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操纵纳米线结构的抗干扰和双峰柔性触觉传感器

柔性触觉传感器（FTS）在仿生假肢、医疗保健和可穿戴设备的精确信号检测方面表现出色，但在保持灵敏度的同时难以在干扰中感知单个触觉信号。在这里，受蝎子的启发，我们报告了具有优越抗干扰能力的超灵敏双峰FTS，利用界面组装技术结合机械策略。值得注意的是，通过我们创新和可行的策略，实现了对大面积，高度有序银纳米线（Ag NWs）制备的精确控制。在模式I中裂纹结构的形成使其具有超灵敏的传感性能（GF = 7.58 × 105，检测限为0.01%）。相反，在模式II下具有三维屈曲结构的有序纳米线使FTS对各种外部刺激不敏感。此外，我们的FTS对其他刺激（温度，湿度和冲击）具有出色的抗干扰能力。更重要的是，FTS被应用于监测手腕关节和脊柱运动，展示了其在智能医疗和疾病预防方面的巨大潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nano Letters 工程技术-材料科学：综合

CiteScore

16.80

自引率

2.80%

发文量

1182

审稿时长

1.4 months

期刊介绍： Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including: - Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale - Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies - Modeling and simulation of synthetic, assembly, and interaction processes - Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance - Applications of nanoscale materials in living and environmental systems Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.