Leuko is developing the first non-invasive white blood cell device. White blood cell assessment is a first-line indicator for various medically-relevant situations, ranging from chemotherapy management to the detection of life threatening infections worldwide. This test is currently invasive and not readily accessible - it requires patient travel, blood draws and laboratory infrastructure. Based on MIT research, Leuko is re-imagining the way to perform these tests without extracting blood and in a portable device.