Electrically Conductive Nanocarbon/Elastomer Composite Inks for Flexible and Wearable Strain Sensing.

ABSTRACT: Flexible strain sensors are essential components of wearable devices for health monitoring, motion tracking, human-machine interaction, and rehabilitation. Here, we report an eco-friendly, all-carbon conductive ink composed of carbon nano-onions (CNOs) and carbon nanotubes (CNTs) dispersed in a poly(styrene-ethylene-butylene-styrene) elastomeric matrix. The ink is formulated using biomass-derived 2-methyltetrahydrofuran to ensure environmental compatibility. The combination of 0D CNOs and 1D CNTs provides high electrical conductivity, mechanical robustness, and tunable viscosity. Compressive strain sensors prepared by dip coating polyurethane sponges show a modulus of ≈460 kPa, a gauge factor of ≈1.1, and electrical hysteresis of 11.3% under 75% compression. Integrated into a football, the

SUBMITTER: Nemala SS 

PROVIDER: S-EPMC12710138 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature