Fig. 1: CFI interface for flexible systems.
From: Cocoon-mimetic feature-matched interface for flexible system
a Inspiration for this work: Insects utilize silk to anchor their cocoons to flexible surfaces (leaves), ensuring structural stability and environmental adaptability. b SEM image of biomimetic design of CFI, using a complex mesh to mount the coil and liquid metal on the skin (bar=500um). c Structure scheme of CFI as interface between a flexible component (e.g., skin or sensor) and rigid circuits in flexible hybrid system. d EDS (energy dispersive spectroscopy) image of the conductive part of CFI which is liquid-metal-in-coil structure (complete elemental analysis is provided in Supplementary Fig. 1); e False-color micro-CT structure of CFI interfaced with deformable surface, liquid metal (LM) is overflowed from coil. f Feature comparison between this work, other interface work and need of flexible components9,19,21,24,25,26,27,40,49,50,51,52,53,54,55,56,57. WVTR refers to water vapor transferring rate. g CFI has an adhesive layer for enhanced contact. h adhesive mesh structure of CFI for breathability. i CFI has 3D-coil structure for stretchability. j CFI has a liquid metal enhanced electrical interface. NOTE: The authors thank Andreas Kay for permission to use the photo of silk cocoon in Fig. 1a.
