Exosomes are 40 ‒100 nm membrane vesicles. They are found in many biological fluids including blood, urine, saliva, amniotic fluid, cell culture supernatants, and malignant ascites fluids. ExoTrap Spin Columns allows to capture exosomes from biological fluids in as little as 30 minutes. The contents of the captured exosomes are then readily processed for downstream analysis by western blotting, mass spectrometry, PCR, or sequencing, etc