I got 'U' under my skin

The University of Utah’s logo is seen on a bunch of red blood cells in this photo, titled "The U Is in My Blood," by Randy Polson, a research associate with the Utah Nanofab in the University of Utah’s College of Engineering. Polson etched the U. logo on his red blood cells using an FEI ion beam system, which uses a gallium beam to etch down to the nanoscale. In the case of Polson’s red blood cells, each of the cells are about 7 microns in diameter or about 10 times smaller tha