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Generation of a Simplified Three-Dimensional Skin-on-a-chip Model in a Micromachined Microfluidic Platform

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Bio-Inspired Active Skins for Surface Morphing.

Yujin Park^1,2, Gianmarco Vella^1,2, Kenneth J Loh^3,4,5

¹University of California-San Diego, Materials Science and Engineering Program, La Jolla, CA, USA.

Scientific Reports

|December 11, 2019

Summary

This summary is machine-generated.

Researchers developed Bio-Inspired Active Skin (BIAS), a novel morphable material. By introducing controlled instabilities, BIAS can change shape for applications in camouflage and soft robotics.

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Area of Science:

Materials Science
Mechanical Engineering
Robotics

Background:

Mechanical metamaterials utilize precise geometry and imperfections for unique behaviors.
Instability-induced morphable structures offer programmable deformation capabilities.

Purpose of the Study:

Introduce Bio-Inspired Active Skin (BIAS) as a new class of instability-induced morphable structures.
Analyze the deformation mechanism of unit cells with and without notches to control BIAS behavior.
Explore applications of BIAS in camouflage, surface morphing, and soft robotics.

Main Methods:

Designed and analyzed unit cell geometry to understand deformation mechanisms.
Introduced hinge-like notches to induce controlled instabilities.
Fabricated two-dimensional arrays of repeating unit cells with notches.

Main Results:

Demonstrated that notches enable selective out-of-plane material deformations activated by in-plane strains.
Showcased control over bulk BIAS behavior through strategic notch placement.
Harvested instability-induced surface features for potential applications.

Conclusions:

BIAS represents a novel approach to creating programmable morphable structures.
The design principle of incorporating controlled instabilities is effective for tailoring material behavior.
BIAS holds promise for advanced applications requiring adaptive surfaces and soft robotic manipulation.