Amino-Modified Graphdiyne-Based Flexible Respiratory Sensor for Monitoring Sleep Apnea Syndrome

• • NH2-GDY sensor exhibits ultra-fast response and recovery times, enabling real-time breath monitoring with high sensitivity to relative humidity (RH) variations, critical for detecting apnea events. • • The sensor demonstrates exceptional mechanical flexibility and operational stability when fabricated on PI substrates, allowing integration into wearable masks for continuous SAS monitoring during natural sleep. • • Amino functionalization and enlarged nanoporous structure of NH2-GDY enhance water molecule adsorption and migration, resulting in rapid adsorption/desorption kinetics essential for accurate respiratory signal capture. • • The wearable system provides real-time health alerts and treatment guidance, offering a practical solution for early SAS diagnosis and management, with potential to reduce risks of cardiovascular complications and sudden death.