Researchers have developed a new technique for making metamaterials with nanoscale structures that can be tuned with strange optical properties. Using gold nanoparticles attached to strands of DNA that would shrink and stretch on demand, the team was able to change the color of the material, but future versions could use the mechanism to turn any color, acting as an environmental or medical sensor, or even a cloaking device.
.. Continue Reading DNA-doped "superlattices" could make for color-changing, cloaking materialsCategory: Materials
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