University of Southern California | High-Resolution Liquid Metal-Based Stretchable Electronics ...

High-Resolution Liquid Metal-Based Stretchable Electronics Enabled By Colloidal Self-Assembly and Micro-Transfer Printing Hangbo Zhao Liquid metal-based stretchable electronics offer high electrical performance and seamless integration with deformable systems, but face challenges in achieving scalable, high-resolution patterning. In this work, we present a method for micropatterning liquid metal particle (LMP) films with feature sizes as small as 5 µm, by integrating electrostatically enabled colloidal self-assembly and micro-transfer printing. The resulting cold-welded LMP micropatterns exhibit exceptional electromechanical properties – high conductivity (2.4×106 S/m), stretchability (over 1200%), and strain- and pressure-insensitive resistance, owing to their multiscale and dynamic morphologies. Demonstrations in highly stretchable strain sensors and cardiac mapping devices highlight the capabilities of this method for creating high-performance, highly stretchable electronic systems. Notably, balloon catheter-integrated LMP microelectrode arrays show low impedance under extreme deformations, and enable high-resolution endocardial electrogram mapping inside the human heart. This method expands the potential of liquid metal-based stretchable electronics for a wide range of applications, including implantable biomedical devices and soft robotics. --------------- To watch this presentation in full, please purchase TechBlick Annual Pass at https://www.techblick.com/registration and login to TechBlick platform https://app.swapcard.com/event/techblick View more presentations like this on: https://www.techblick.com/pastevents    / @techblick   Upcoming Events: https://www.techblick.com/events-agenda The Future of Electronics RESHAPED: https://www.techblick.com/USA https://www.techblick.com/EUROPE The Future of Electronic Textiles RESHAPED: https://www.techblick.com/electronict... The Future of Sustainable Electronics RESHAPED: https://www.techblick.com/sustainable... Perovskite Connect: https://www.techblick.com/perovskitec... MicroLED Connect: https://www.microledconnect.com/ AR/VR Connect: https://www.microledconnect.com/arvrc... Optical I/O Connect: https://www.optical-io-connect.com/ ---------------