Researchers have developed a first-of-its-kind technique for creating entirely new classes of optical materials and devices that could lead to light bending and cloaking devices – news to make the ears of Star Trek’s Spock perk up. Using DNA as a key tool, the scientists took gold nanoparticles of different sizes and shapes and arranged them in two and three dimensions to form optically active superlattices. The structures could be programmed to exhibit almost any color across the visible spectrum.
from Engineering and Construction News – ScienceDaily https://www.sciencedaily.com/releases/2018/01/180118162440.htm
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