Biomimetic optical nanostructures Ghent University
Arrangements of material at the nanometer scale produce a dazzling array of colors, ranging from
ultra violet to red, without pigments. These so-called structural colors are particularly distinctive in
birds, which can produce non-iridescent colors (such as the blues of blue tits) using matrices of
keratin and air, or iridescent colors (such as the flashy colors of hummingbirds) using arrays of
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