The coating is made of two layers of a synthetic chemical, similar to Teflon, called perfluorocarbon. The substance creates a slippery surface for the sticky parts of blood — fibrin and platelets — to slide past.
The team tested the technology in pigs by inserting catheters and other medical devices coated with the perfluorocarbon. They even challenged a gecko to climb up a coated surface. Geckos derive their incredible climbing ability by using a lot of small, weak chemical bonds — the same chemical bonds that are the first step in blood clotting.
“The look on the gecko’s face when he slides down is so humiliated,” senior author Dan Ingber said.
Perfluorocarbon is already used as an FDA-approved blood substitute and can be used in any procedure involving extracorporeal devices, such as dialysis machines. Plus, the perfluorocarbon coatings can be sterilized for medical use. Researchers are in talks with device-makers now.