An array of antibiotic surfaces can be found in the natural world, inspiring scientists to develop man-made versions of them. A recent example of this trend can be found in research from Australian and Spanish scientists who have developed ananomaterial out of black silicon with tiny spikes on its surface. The surface geometry of the material is similar to that of the wings of an Australian dragonfly known as the “wandering percher,” whose wings have tiny spikes that inhibit bacterial growth.In the lab, the scientists confirmed that the black silicon material proved to be effective against an array of Gram-negative and Gram-positive bacteria as well as endospores. The researchers report that the breakthrough is the first “physical bactericidal activity of [black silicon] or indeed for any hydrophilic surface.”
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