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Related Experiment Video

Updated: Feb 7, 2026

A Fabrication Method for Highly Stretchable Conductors with Silver Nanowires

A Fabrication Method for Highly Stretchable Conductors with Silver Nanowires

Published on: January 21, 2016

Stretchable Seal.

Paul Le Floch¹, Shi Meixuanzi², Jingda Tang²

¹School of Engineering and Applied Sciences, Kavli Institute for Bionano Science and Technology , Harvard University , Cambridge , Massachusetts 02138 , United States.

ACS Applied Materials & Interfaces

|July 18, 2018

Summary

Wrinkled seals offer a breakthrough for stretchable electronics, overcoming the inherent trade-off between material stretchability and low permeability. This innovation enables durable, high-performance flexible devices.

Keywords:

hermetic seal laminates permeability stretchable electronics wrinkles

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Last Updated: Feb 7, 2026

A Fabrication Method for Highly Stretchable Conductors with Silver Nanowires

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Scalable Fabrication of Stretchable, Dual Channel, Microfluidic Organ Chips

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Published on: October 20, 2018

Area of Science:

Materials Science
Mechanical Engineering
Polymer Science

Background:

Stretchable electronic devices require hermetic seals that prevent gas and moisture ingress.
A fundamental challenge exists in achieving both high stretchability and low material permeability simultaneously.
Existing materials often compromise on stiffness or transmissibility when stretched.

Purpose of the Study:

To investigate the relationship between material properties and seal performance under strain.
To explore novel seal designs that overcome the stretchability-permeability paradox.
To evaluate the long-term durability of different seal configurations under cyclic loading.

Main Methods:

Data collection on water and oxygen permeation through various materials.
Development and analysis of scaling relations for flat and wrinkled seal geometries.
Experimental testing of wrinkled seals (Al, PE, SiO2 on elastomers) under cyclic tensile strain.

Main Results:

Wrinkled seals demonstrate superior performance in meeting simultaneous requirements of stretchability, low stiffness, and low transmissibility compared to flat seals.
Wrinkled polyethylene and silica films maintained low transmissibility after 10,000 cycles of tensile strain.
Wrinkled aluminum seals showed fatigue cracking after limited cycles, indicating material-dependent durability.

Conclusions:

Wrinkled seal architectures are a viable strategy for creating high-performance hermetic seals in stretchable electronics.
Polyethylene and silica are promising materials for durable wrinkled seals in flexible devices.
The findings pave the way for advanced, reliable stretchable electronic systems.