A Liquid Metal-Embedded Sheath-Core Fiber with Internal Helical Structure for Strain-Insensitive Electronics.

ABSTRACT: Stable conductivity is crucial for flexible wearable devices, ensuring reliable signal transmission, sensing accuracy, optimal display performance, and overall device reliability. However, simultaneously achieving high elasticity, superior conductivity, and robust stability remains a formidable challenge. This study presents a novel core-sheath fiber with an internal helical structure as the core layer and an intrinsic elastic material as the sheath layer, which combines the intrinsic elastic material and extensile spiral structure to realize high stretchability, ultra-conductivity, and strain-insensitivity. The hollow fiber with helical channel is fabricated via coaxial wet-spinning technology by adjusting the flow velocity, with an elongation at break of ≈1440%. Subsequent infusion of li

SUBMITTER: Luo M 

PROVIDER: S-EPMC12533390 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature