Images of ox blood cells taken underneath a microscope
These are seamless patterns made from images of ox blood underneath a microscope. You can see the individual blood cells within the images. Some of these images were taken of the blood interacting with isopropyl alcohol or water. Most of the patterns have a more vivid, blood-like version, as well as the original, unedited image (which the blood had been diluted and/or dried).

I hope you enjoy! I felt these would be perfect for halloween!

Blood Cell Patterns