Our research extends beyond energy harvesting into the development of high-performance polymer-based sensors for real-time environmental and biomedical monitoring. By leveraging electroactive polymers, we have designed self-powered sensors capable of detecting fluid velocity and motion with high sensitivity and reliability. These sensors integrate nanostructured materials and piezoelectric polymers, ensuring superior mechanical flexibility and biocompatibility. One of our key projects involved the development of e-skin for human-machine interfaces, enabling real-time physiological monitoring without an external power source. Additionally, our team has successfully fabricated self-powered flow meters and traffic sensors for industrial applications, showcasing how polymer-based sensing platforms can revolutionize autonomous monitoring systems across various fields.