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3D morphable systems via deterministic microfolding for vibrational sensing, robotic implants, and reconfigurable
Lin Zhang1, Zongwen Zhang2,3, Hannah Weisbecker4
1Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, NC 27514, USA.
Science Advances
|December 21, 2022
Summary
Researchers developed a microfolding strategy to create adaptable 3D morphable microelectronic systems. This breakthrough enables versatile applications in robotics, medicine, and telecommunication by allowing in-situ modulation of complex configurations.
Area of Science:
- Materials Science and Engineering
- Micro- and Nanotechnology
- Robotics and Mechatronics
Background:
- Biological systems like DNA and proteins utilize three-dimensional (3D) folding for essential functions.
- Emulating these natural folding principles in synthetic materials offers significant technological potential.
- Existing technologies often lack the adaptability and complex 3D configurations seen in biological structures.
Purpose of the Study:
- To introduce a novel microfolding strategy for fabricating morphable 3D microelectronic systems.
- To integrate diverse functional materials, including silicon, nanomembranes, and polymers, into these systems.
- To demonstrate the adaptability and in-situ modulation capabilities of these 3D microelectronic systems.
Main Methods:
- Development of a microfolding strategy involving predesigned folding hosts and configured folding pathways.
- Integration of monocrystalline silicon, metallic nanomembranes, and polymers into 3D microelectronic architectures.
- Assembly of freestanding 3D microelectronic systems capable of transforming into complex configurations.
Main Results:
- Successful fabrication of 3D morphable microelectronic systems with diverse material integration.
- Demonstration of in-situ access and modulation of nearly all transitional states of the 3D systems.
- Creation of advanced systems including a reconfigurable microantenna, a 3D vibration sensor, and a cardiac mapping robot.
Conclusions:
- The microfolding strategy enables the creation of highly versatile and adaptable 3D microelectronic systems.
- These systems exhibit broad utility across telecommunication, medical monitoring, and robotics.
- The approach offers a powerful new paradigm for designing functional materials with dynamic 3D capabilities.
