Complex sentence: Puri is a founder and mentor of Nanospin, which is a startup that has developed a cooling system for computers and electronic devices that uses a liquid dispersion of magnetic nanoparticles to dissipate waste heat.
Split into simpler sentences: Puri is a founder and mentor of Nanospin, which is a startup that has developed a cooling system for computers and electronic devices. This cooling system uses a liquid dispersion of magnetic nanoparticles to dissipate waste heat.