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Colloidal Camouflage

Colloidal Camouflage

Cuttlefish dynamically change both the color and texture of their skin to create camouflage that matches the environment around them. A University of Nebraska research team is doing the same thing using colloids in a multilayered structure. When light hits the colloid layer, heat convection reassembles it to replicate the light pattern.

This technique is also likely to be applicable to growing biological tissue.

Engineers introduce design that mimics nature’s camouflage – [nanowerk.com]

It can shift from red to green to violet. It can mimic patterns and designs. And it can do all of this in a flash — literally.

The same qualities that define the cuttlefish — a sea dweller that uses its powers of dynamic camouflage to survive and communicate — also apply to a new engineering feat that behaves much like nature’s master of disguise.

A team of UNL researchers has developed a structure that can begin replicating color and texture within seconds of exposure to pulses of light (“Color and Texture Morphing with Colloids on Multilayered Surfaces”). The new design responds to much lower-intensity light and at faster rates than its few predecessors, said Li Tan, associate professor of mechanical and materials engineering.

Printing Liquid Metal
CLIP = Continuous Liquid Interface Production
Interlocking Cellular Composite Building Blocks
New Skin
Naked Clothes
Active Living Spaces

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