Skin-Tailored Adhesive Bio-Electrode with Tunable Poisson's Ratio for Stable Electrophysiological Communication.

Stretchable electrodes are crucial healthcare device components for electrophysiology signal sensing. Compared to conventional rigid gel electrodes, stretchable electrodes are advantageous for long-term monitoring with superior skin conformality. However, current devices often show limited compliance and adhesive reliability, especially during human motion.

Bioinspired interfacial engineering for highly stretchable electronics.

The seamless integration of rigid/flexible electronic components into stretchable substrates is imperative for the realization of reliable stretchable electronics. However, the transition from flexible-to-stretchable substrates presents inherent challenges in interfacial behavior, predominantly arising from disparities in elastic moduli, thereby rendering their integration arduous for practical deployment. Here, we introduce a bioinspired interface-engineered flexible island (BIEFI), which effectively facilitates the creation of highly stretchable electronics by optimizing the interface with flexible mechanical interlocking mechanisms, resilient to physical deformations.

Bioinspired Omnidirectional Interface Engineered Flexible Island for Highly Stretchable Electronics.

With the advancement of electronics, there is a growing need to effectively combine rigid, flexible, and stretchable materials to build hybrid electronics. However, the interfacial transition between rigid/flexible and stretchable substrates presents considerable challenges, mainly due to differences in elastic moduli, complicating their integration for practical usage. Here, bioinspired omnidirectional interfacial-engineered flexible islands (BOIEFI) are introduced for a robust transition from flexible to stretchable substrates.