Stretchable, color-changing wires warn of stress on materials

Scientists at Duke University, North Carolina State University and the University of California, San Diego, have teamed up to create stretchable, flexible wires that conduct current and change colors to indicate that they're about to reach the breaking point. The wires are a liquid metal called gallium indium alloy, and the polymer casing that changes colors is based on spiropyran mechanophores. Future uses could be wearable electronics, biomedical devices and soft robots.

Provided by Duke University

Runtime: 1:07

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