Autumn is here, which means summer colors are beginning to fade and many leaves are starting to change from green to red and yellow. Although it’s all around us, we might not often think about what color actually is. Color is the characteristic that describes the light waves that are absorbed by, and bounce off, …
Nanostructures in butterfly wings
A few weeks ago (before it started snowing!) I went on a walk in the garden across the street from the University of Wisconsin chemistry building and saw an abundance of beautiful butterflies. I noticed that the butterflies were iridescent in the sunlight as they fluttered from flower to flower. I wondered: does the iridescence …
Mimicking Nature’s Nanotechnology: From a butterfly wing to anti-counterfeit technologies
Have you ever wondered where the inspiration behind new technologies comes from? We don’t have to go too far to find out; it is enough to just look out the window! Look deep into nature, and then you will understand everything better. -Albert Einstein Yes, nature is out there, standing as a giant laboratory of …