Gooyoon Chung

Seung Kwon Seol Smart 3D Printing Research Team, Korea Electrotechnology Research Institute, Changwon, 51543 Republic of Korea Electro-Functional Materials Engineering, University of Science and Technology, Changwon, 51543 Republic of Korea Search for more papers by this author

1 Introduction Recent advancements in 4D printing and smart materials have led to the development of active mechanical metamaterials, which respond to external stimuli and dynamically alter their physical properties.[1-4] These materials enable designs optimized for specific applications and are capable of modulating various mechanical properties, such as deformable structures,[5-8] tunable stiffness,[9-11] tunable energy absorption,[12, 13] and controllable acoustic wave propagation.[14, 15]...

Abstract The development of stable and multifunctional monitoring or actuating systems for implantable biomedical devices necessitates a high-capacity power supply. By using the oscillation of a magnetic field, energy can be transmitted through various media such as skin, fat, liquids, metals, and fabrics. We demonstrate a magnetically actuated implantable triboelectric generator that can effectively transfer energy independently of the surrounding media.