Liquid Metal Composite Organohydrogel Based on Water-Soluble Starch Stabilizer with Supertoughness, Self-Healing, and Harsh-Environmental Tolerance for an Advanced Strain Sensor

IF 9.6 1区 材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY Nano Letters Pub Date : 2025-03-15 DOI:10.1021/acs.nanolett.5c00664
Yue Xin, Shousen Chen, Weicheng Qiu, Jun Zhu, Guanling Li, Baoliu Qu, Xin He, Xiaoshuang Li, Guoxing Sun, Jun Fu, Guang Zeng
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Abstract

In this work, a supertough, self-healable, and extreme-environment-tolerable liquid metal (LM) composite organohydrogel was fabricated by dispersing LM particles (LMPs) with water-soluble starch (WS) and leveraging multilevel hydrogen-bonding interactions. Attributed to the cooperation of the strong dual-hydrogen bonds and weak monohydrogen bonds, the organohydrogel obtained an outstanding tensile strength of 2.0 ± 0.13 MPa and toughness of 16.0 ± 1.0 MJ m–3, as well as desirable self-healing ability. The organohydrogel strain sensor has a high gauge factor (GF) of 15.08 along with a large detection range (0–1159%), demonstrating its outstanding sensitivity. It was successfully applied for manipulator gesture detection in harsh environments, showing excellent detection resolution and sensing stability in a wide temperature range (−20 to 50 °C). This work provides a new avenue for preparing multifunctional LM composite gels, showing great promise for next-generation wearable electronics.

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来源期刊
Nano Letters
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.
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