ELI5: Explain Like I'm 5

Nanoparticles

Nanoparticles are very tiny things that you can't really see with your eyes. Imagine if you had a piece of candy and you broke it into really, really small pieces. Those small pieces would be like nanoparticles. They are so small that you would need a special tool called a microscope to see them.

Nanoparticles can be made out of all different kinds of materials like metals, plastics, or even medicines. Scientists use them to do all sorts of things like build new kinds of computers, help make medicine work better, or even make clothes that can clean themselves.

Even though they are super small, nanoparticles are really powerful. They can do things that normal sized things can't do. For example, they can slip into parts of your body that regular medicines can't reach, which is really helpful when you get sick.

Scientists are still learning a lot about nanoparticles and how they can be used to make our lives better. But it's important to be safe when working with them because they are so tiny and can be hard to control. So, scientists are careful to study them and make sure they don't hurt people or the environment.