In this tutorial, we are going to create a Niagara system for skeletal mesh to simulate a Dissolve - Disintegrate - & Reintegrate process. Here dissolve part is implemented in the material. And the particle get’s its color by sampling the spawn point in the mesh itself. I will explain how the Niagara particles are spawned on the surface of the skeletal mesh and spread out in the space and after a some time, they will re-integrate and form the original mesh.
https://dev.epicgames.com/community/learning/tutorials/pLEx/unreal-engine-unreal-niagara-dissolve-disintegrate-reintegrate