Electron micrographs of cross-sections of films made from nano particles of polydopamine. The thickness of the layers and density of particles determines how light interacts with the particles, and ...

Melanin is the pigment that is responsible for our beautiful variety of skin tones and shades, eye colors, and hair colors. However, when we discuss melanin, that discussion rarely includes its actual ...

Melanin is a natural pigment in your body that protects you from UV damage from the sun. People with darker skin tend to have more melanin and are therefore at a lower risk of sun damage. The only way ...