ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2026
Pacinian Corpuscle-Inspired Strain Conversion Enables Ultrasensitive, Linear, and Broad-Range Piezoelectric Sensing for Cardiovascular Health Monitoring.
Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
High-fidelity wrist pulse acquisition, essential for the early diagnosis and precise management of cardiovascular diseases, requires tactile sensors with both ultrasensitive and linear electromechanical responses. Biological Pacinian corpuscles transduce mechanical stimuli into localized strain via concentric lamellar architecture, enabling subtle and dynamic perception of pressure fluctuations. Inspired by the working mode of Pacinian corpuscles, this work presents a piezoelectric tactile sensor featuring a multilayer grooved architecture that transduces external pressure into localized in-plane strain within the piezoelectric layer, effectively enhancing dipole alignment and charge separation. Finite element simulations and experimental results confirm that the grooved architecture contributes to strain concentration, giving rise to an ultrahigh sensitivity of 185 mV·kPa
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