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Published on: November 14, 2025
Adaptable piezoelectric hemispherical composite strips using a scalable groove technique for a self-powered muscle
Nagamalleswara Rao Alluri1, Venkateswaran Vivekananthan, Arunkumar Chandrasekhar
1School of Applied Energy Systems (Major in Mechanical Engineering), Engineering Building No: 4, D-130, Jeju National University, Ara-1-Dong, Jeju-Si, Jeju-Do, Jeju-690756, South Korea. alluri@jejunu.ac.kr.
Abstract:
Contrary to traditional planar flexible piezoelectric nanogenerators (PNGs), highly adaptable hemispherical shape-flexible piezoelectric composite strip (HS-FPCS) based PNGs are required to harness/measure non-linear surface motions. Therefore, a feasible, cost-effective and less-time consuming groove technique was developed to fabricate adaptable HS-FPCSs with multiple lengths. A single HS-CSPNG generates 130 V/0.8 μA and can also work as a self-powered muscle monitoring system (SP-MMS) to measure maximum human body part movements, i.e., spinal cord, throat, jaw, elbow, knee, foot stress, palm hand/finger force and inhale/exhale breath conditions at a time or at variable time intervals.
