Establishment of a Density Gradient Centrifugation System to Isolate and Purify Bacterial Extracellular Vesicles (BEVs) from Human Faeces

To begin, take 500 microliters of the prepared PBS/BEV solution. Combine it with three milliliters of PBS and mix gently using a 1, 000 microliter pipette. Place a 31 milliliter ultracentrifuge tube on a foam plate with holes, and label the tube w