Biaxially-Stretchable Kirigami-Patterned Mesh Structures for Motion Artifact-Free Wearable Devices

We report a kirigami patterned island-bridge mesh structure as a platform for motion artifact-free wearable sensors. Using finite element analysis (FEA) simulation, we demonstrate that 2×2, 3×3, and 4×4 kirigami-patterned mesh structures can be stretched beyond 100% owing to the out-of-plane bending deformation of kirigami-patterned bridges. In addition, we show that local strain in the islands is predicted to be maintained below 0.1% under biaxial strain of 100% regardless of the mesh size.