A research collaboration between scientists from Revalesio, the University of Utah, and the University of Texas at Austin developed a high-speed multipass Coulter counter that allows the repeated measurement of nanoparticles at frequencies of more than 100 times per second. The result is a considerably improved size resolution compared to conventional Coulter counters.

Link to article: High-Speed Multipass Coulter Counter with Ultrahigh Resolution | ACS Nano