Under certain conditions, water can exist as a liquid and a gas at the same time, for example, in cloud formation: Depending on the temperature, water vapor in the air condenses into liquid droplets.

You probably learned in school that there are three states of matter: solid, liquid and gas. Think ice cube, a puddle of water and steam. Maybe you also learned about a fourth state, known as plasma .

Nanoparticles are materials that are confined to the nanoscale in all three dimensions. Engineered nanoparticles play an important role in nanotechnology. The specific properties of nanoparticles is ...