Motion artifact-controlled micro-brain sensors between hair follicles for persistent augmented reality brain-computer interfaces.

ABSTRACT: Modern brain-computer interfaces (BCI), utilizing electroencephalograms for bidirectional human-machine communication, face significant limitations from movement-vulnerable rigid sensors, inconsistent skin-electrode impedance, and bulky electronics, diminishing the system's continuous use and portability. Here, we introduce motion artifact-controlled micro-brain sensors between hair strands, enabling ultralow impedance density on skin contact for long-term usable, persistent BCI with augmented reality (AR). An array of low-profile microstructured electrodes with a highly conductive polymer is seamlessly inserted into the space between hair follicles, offering high-fidelity neural signal capture for up to 12 h while maintaining the lowest contact impedance density (0.03 kΩ·cm^-2)

SUBMITTER: Kim H 

PROVIDER: S-EPMC12012477 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature