Biomolecular Piezoelectric Materials for Transient Bioelectronics
Vivian Feig a
a Department of Mechanical Engineering, Stanford University
Proceedings of MATSUS Spring 2026 Conference (MATSUSSpring26)
I2 Organic materials and devices for sustainable and transient electronics
Barcelona, Spain, 2026 March 23rd - 27th
Organizers: Noemí Contreras-Pereda and Micaela Matta
Invited Speaker, Vivian Feig, presentation 166
Publication date: 15th December 2025

Bioelectronic devices have immense potential for advancing human health by monitoring, stimulating, and interfacing with living systems; yet, realizing their full impact requires functional materials that are less invasive, more adaptive, and accessible for widespread use. Achieving this vision demands new approaches that address the entire device lifecycle: from delivery to and integration with dynamic, soft, and curvilinear targets; to maintaining stable function over operational lifetimes; and ultimately to safe degradation or removal.

In this talk, I will discuss emerging design principles for functional materials that can meet these challenges, and highlight two research stories from our lab that illustrate how lessons from the pharmaceutical sciences can be applied to the development of next-generation electronics. First, I will propose a mechanism for assembling functional implants via non-invasive delivery methods like needle injection. I will then describe our group’s development of biomolecular piezoelectric composites that combine intrinsic energy-harvesting capabilities with favorable mechanics, biodegradability, and biocompatibility, and will discuss how we balance transience with stable long-term functionality. Altogether, these materials open up new possibilities for transient, self-powered bioelectronic systems that integrate seamlessly into patients' lives.

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