ELI5: Explain Like I'm 5

Self-assembled monolayers

Imagine you are playing with LEGOs, but instead of connecting them to build something, you just pour them out onto a flat surface. You notice that the LEGOs start to arrange themselves in a particular pattern. This is kind of what happens with self-assembled monolayers.

Self-assembled monolayers, or SAMs for short, are a collection of tiny molecules that arrange themselves into specific patterns on a surface. These molecules can be made from different materials, like metals or plastics.

The surface that they assemble on can also be made from different materials, like glass or silicon. To get them to assemble in the right pattern, scientists put the surface with the molecules on it in a solution with the same molecules.

The molecules in the solution start sticking to the molecules on the surface, and eventually, they become arranged in a specific way (like the LEGOs on the flat surface).

Scientists use SAMs in a lot of different ways, like to make computer chips or to study how cells behave. It's kind of like building with LEGOs, but on a really tiny scale!