Detecting when a shuriken particle collides with a GameObject

I've created a basic casting system where I can cast a spell on a target. When I cast a spell it instantiates a particle effect, and on every update it uses Vector3.MoveTowards to move towards its target. The problem I'm having is figuring out the best approach to handle instantiating a separate particle effect when the spell impacts its targets. So, in short, what I want to do is: 1) User casts spell 2) Spell moves towards target 3) Once spell reaches target the spell particle effect is destroyed, and a blood 'spew' particle effect is emitted from where the particle collided with the target object. Anyone have any advice on how best to approach this? Thanks!