for CTLE In the world of nanotechnology, some of the biggest opportunities for industrial innovation and investment come from the smallest of material substances; namely, nanoparticles, which are measured in nanometers. And just how small is a nanometer? Well, look at it this way: a human hair is 60,000 nanometers in diameter*, and the relationship between one nanometer and the width of that hair about equivalent to the relationship between one inch and one mile. That’s small.