AI-driven placement optimization of piezoelectric actuators for advanced healthcare monitoring systems

The integration of intelligent materials with artificial intelligence has revolutionized modern healthcare by enabling precise, adaptive, and energy-efficient medical technologies. Among these, piezoelectric actuators are pivotal, converting mechanical energy into electrical signals and vice versa, thereby facilitating advanced sensing and actuation in diagnostics and therapy. Piezoelectric materials encompassing composites, monocrystals, and polycrystals exhibit reversible electromechanical conversion, allowing their use in sensors and actuators to monitor parameters such as flow rate and pressure. This study examines the role of smart piezoelectric materials in medical device design, emphasizing their impact on emerging biomedical technologies. A comprehensive understanding of piezoelectricity is vital to overcoming current challenges and advancing healthcare applications. Notably, recent research has demonstrated the therapeutic potential of electric fields in treating aggressive cancers like glioblastoma, which typically has a median survival of about 15 months. Local electric fields can disrupt tumor cell division by impairing mitotic spindle assembly. However, continuous electric field exposure risks thermal burns. Piezoelectric actuators offer a safer alternative through wireless ultrasonic stimulation, which induces therapeutic effects by modulating voltage-gated ion channels and altering membrane potentials.