Helically Intersected Conductive Network Design for Wearable Electronic Devices: From Theory to Application

Yijun Li, Kailin Zhang, Qiang Geng, Min Nie*, Qi Wang, Zhaoxia Huang*, Zhenghao Wu, Lin Pi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


Flexible and stretchable strain sensors are crucial components for wearable electronics that can detect and quantify the stimuli from the environment and thus realize the rapid feedback and control of smart devices. However, reconciliation of the conflict between resourceful design of conductive networks and large-scale production in the industry still faces a huge challenge. Herein, we present a new flow-manipulated strategy to prepare a wearable strain sensor featuring a helically intersected conductive network, which exhibited easy integration, multidimensional sensibility, and robust mechanical properties. From visualization of simulation and verification of experimental results, the helically intersected conductive network formed in an elastomer ring can simultaneously reflect the static and dynamic mechanical responses with a tunable gauge factor (10.41-31.12), wide linear region (0-40o), mechanical robustness (σs = ∼7 MPa, ϵ = ∼1400%), and rapid response time (∼300 ms). We further constructed a control system based on smart rings and demonstrated its application in controlling industrial robotic arms and remote-controlled cars. Looking ahead, this kind of a smart ring will be more widely used in space and underwater exploration, intelligent robotics, and human-machine interface technologies.

Original languageEnglish
Pages (from-to)11480-11488
Number of pages9
JournalACS Applied Materials and Interfaces
Issue number9
Publication statusPublished - 10 Mar 2021
Externally publishedYes


  • carbon fiber
  • finite element analysis
  • remote control
  • rotation extrusion
  • strain sensor


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