Smart fiber with overprinted patterns to function as chip-like multi-threshold logic switch circuit

Xiaofei Wei, Rui Li, Siwei Xiang (), Long Qin, Xinxin Luo, Jie Xue () and Xing Fan ()
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Xiaofei Wei: Chongqing University
Rui Li: Chongqing University
Siwei Xiang: Chinese Academy of Sciences
Long Qin: Chongqing University
Xinxin Luo: Industrial Technology Research Institute of Chongqing University
Jie Xue: Chinese Academy of Sciences
Xing Fan: Chongqing University

Nature Communications, 2025, vol. 16, issue 1, 1-10

Abstract: Abstract There is a growing demand for precise health management, capable of differentially caring every inch of skin as an on-body network. For which, each network node executes not only multi-physiological sensing, but also in-situ logic computing to save cloud computing power for massive data analysis. Herein, we present a smart fiber with multilayers of overprinted patterns, composed of many small units with 0.3 mm long to function as a one-dimension (1D) array of chip-like multi-threshold logic-switch circuit. Via soft contact of curved surfaces between fiber and ink-droplet, an overprinting method is developed for stacking different layers of patterns with a line width of 75 μm in a staggered way, enabling batch production of circuit units along one long fiber. A smart fiber with high density of >3000 circuit units per meter can be woven with fiber-type sensors to construct a textile-type body-covering network, where each node serves as a computing terminal.

Date: 2025
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DOI: 10.1038/s41467-025-62648-3

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