Fiber‐based multimodal sensors with electrical/optical signals are highly desired for next‐generation wearable electronics. Despite the remarkable progress in this area, achieving large‐scale knittable, washable, and self‐healing performance in fiber‐based multimodal sensors simultaneously remains a great challenge. Here, a smart fiber capable of exhibiting piezoresistive/luminescent properties based on an H‐bonding connected multilayered core–shell nanostructure is developed. The core principle of this design involves constructing strong interfacial interactions between the fiber layers, which results in a sensor with high sensitivity (gauge factor = 12383500), exceptional water resistance, and robust self‐healing properties (tensile strength 30.9 MPa, healing efficiency 72.9%). Unlike traditional fiber‐based sensors where elaborate nanostructures are prone to shedding during knitting, this strategy enables the fiber sensors with excellent knittability to be patterned in the fabric, improving both optical and electrical sensitivities. This work is anticipated to make a significant contribution to the further development of wearable electronic products and visual human–computer interaction electronic devices.

中文翻译：

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用于双模态传感应用的大面积可针织、耐洗且可修复的智能纤维

下一代可穿戴电子产品非常需要具有电/光信号的基于光纤的多模态传感器。尽管在这一领域取得了显着的进展，但同时在基于纤维的多模态传感器中实现大规模可编织、可清洗和自修复性能仍然是一个巨大的挑战。在这里，开发了一种基于氢键连接的多层核壳纳米结构的能够表现出压阻/发光特性的智能纤维。该设计的核心原理涉及在纤维层之间构建强界面相互作用，从而形成具有高灵敏度（应变系数）的传感器 = 12383500），卓越的耐水性和强大的自修复性能（拉伸强度30.9 MPa，修复效率72.9%）。与传统的纤维传感器不同，传统的纤维传感器的精细纳米结构在编织过程中容易脱落，这种策略使具有优异可编织性的纤维传感器能够在织物中形成图案，从而提高光学和电学灵敏度。这项工作预计将为可穿戴电子产品和视觉人机交互电子设备的进一步发展做出重大贡献。