Flexible, stretchable, and transient electronics for integration with the human body

Technologies capable of establishing intimate, long-lived interfaces to the human body have broad utility in continuous measurement of physiological status, with the potential to significantly lower tissue injury and irritation after implants. The development of such soft, biocompatible platforms and integrating them into a biotissue-interfaced system requires suitable choice of materials and engineered structures. Specific directions include overall miniaturization (e.g., Si nanomembrane) or composite material structure (e.g., carbon black doped elastomer) that provide effective mechanics to match those of biological tissues. This dissertation presents combined experimental and theoretical investigations of such functional systems that offer flexibility and stretchability, while maintaining operational performance and mechanical robustness. The dissertation begins with a fundamental study of responsive monocrystalline silicon nanomembrane as a flexible electromechanical sensor element. Subsequent chapters highlight integration with active components for wireless addressing, multiplexing, and local amplification, with multimodal operation in a thin, soft, skin-like platform. The resulting biointegrated system enables (1) sensitive health monitoring system, (2) multifunctional tactile sensor, (3) high-density neural interfaces, and (4) physically transient, implantable electronics, all with the capability of stable operation for long timeframes.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Electrical & Computer Engr

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2019

Author dc:creator

• Won, Sang M.

Contributors dc:contributor

• Rogers, John A
• Bashir, Rashid
• Li, Xiuling
• Cunningham, Brian T
• Lyding, Joseph W

• FLEXIBLE ELECTRONICS
• STRETCHABLE ELECTRONICS
• IMPLANTABLE ELECTRONICS

Statement dc:rights

• Copyright 2019 Sang Won

Language dc:language

en

Handle dc:identifier

http://hdl.handle.net/2142/105584

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/105584