ThisTroper once wrote a story with a type of particle called a Velocichron. Velocichrons are tiny particles that have a North side and a South side. If a particle moves within a certain distance of it, it is within the area of effect. If it moves North while in the area of effect, it moves into the future (how far depends on speed), and vice versa. The speeds required to move significant distances through time, combined with the fact that they're usually all pointing in different directions means that it usually has no effect. But if you use a magnet to point them all in the same direction and then shoot something through a field at high speeds, they can be used to travel through time, but to get to your destination you need to consider the density and size of the field and the speed at which you shoot it through.

This Troper has actually invoked the Minovsky Particle by name as an explanation as to why his house seems to jam all cell phones in a three-house diameter. We're not going to get into the particles from his own sci-fi stories. (Most are AppliedPhlebotinum, anyways.)

ThisTroper has written a ''{{Firefly}}''fanfic that treated the psychic abilities created by the Academy in their test subjects like this.

The Ultra Particles used by this troper in his CodeGeass fanfic. They "link" to the Sakuradite and increase its power, thus increasing the power of any beam weapons. They also color the beams blue.