New Technicolor Dream Material Mimics Chameleon Skin

Chameleons are known for their vibrant color changes. While the old wives’ tale that they change color to match their surroundings isn’t true, they are capable of remarkable shifts in hue, a trait which has fascinated scientists for years.

Now, scientists have learned from the little lizards, and have created a material that, like chameleons, can shift its colors seemingly effortlessly.

This silicone material changes color when it is stretched or compressed, just like chameleon skin.
This silicon material changes color when it is stretched or compressed, just like chameleon skin.

The material was created by Connie Chang-Hasnain, a professor of electrical engineering at University of California Berkeley, and her students, Li Zhu and James Ferrara, with the help of visiting student Jonas Kapraun. “One day in our group seminar we started to think about color,” Chang-Hasnain explained. “We looked at what was known at the time about how chameleon skin could change color, and we were fascinated by that, and we thought we could design for it.” And as they reveal in a study published in Optica this week, they were right. Continue reading “New Technicolor Dream Material Mimics Chameleon Skin”