Piezoelectric materials for biomedical sensing and actuation

Title : Piezoelectric materials for biomedical sensing and actuation

Abstract:

Piezoelectric materials play a pivotal role in the advancement of biomedical sensing and actuation systems due to their intrinsic electromechanical coupling capabilities. This abstract outline key thematic areas for in-depth discussion:

1. Fundamentals of Piezoelectricity: Introduces the basic working principles of piezoelectric materials, highlighting the direct and inverse piezoelectric effects that enable sensing and actuation functions.
2. Material Types and Properties: Discusses conventional piezoelectric ceramics like lead zirconate titanate (PZT), lead-free alternatives (e.g., barium titanate, potassium sodium niobate), and emerging flexible piezoelectric polymers such as polyvinylidene fluoride (PVDF), focusing on their mechanical, electrical, and biocompatibility characteristics.
3. Biomedical Sensing Applications: Explores the use of piezoelectric materials in physiological monitoring—such as pressure, strain, acoustic signals, and biosignals—demonstrating their role in wearable sensors, implantable diagnostics, and real-time health monitoring.
4. Actuation in Biomedical Devices: Examines how piezoelectric materials enable actuation in microscale surgical instruments, drug delivery systems, and tissue stimulation, offering precision and responsiveness at small scales.
5. Integration and Fabrication Techniques: Reviews advances in miniaturization, MEMS integration, and nanostructuring techniques that enhance the performance and compatibility of piezoelectric components with biological systems.
6. Challenges and Future Perspectives: Addresses issues such as long-term biocompatibility, energy efficiency, and material sustainability, and discusses future research directions including self- powered systems and hybrid material architectures.

These thematic areas provide a comprehensive foundation for exploring the transformative potential of piezoelectric materials in modern biomedicine.

Biography:

Dr. Shradha Saxena is a Senior Grade Assistant Professor in Electronics and Communication Engineering at JIIT Noida, with over 15 years of teaching experience. She holds a Ph.D. from JIIT, an M.Tech from IIT Roorkee, and a B.Tech from UPTU. Her research focuses on piezoelectric energy harvesting devices, circuits, and materials, as well as organic electronics and nanoscale systems. She has published in reputed journals like Energy Storage and Applied Physics A. Dr. Saxena’s work emphasizes miniaturized, efficient energy systems, and she holds a patent for her innovation in cavity-based multi-resonant piezoelectric energy harvesting technology.