Bandage Material Stops Bleeding Without Adhering to the Wound

Researchers have developed a new kind of bandage that helps blood to clot and doesn’t stick to the wound. They tested various superhydrophobic materials — which are, like Teflon, extremely good at repelling liquids such as water and blood. The goal was to find coatings for devices that come into contact with blood; for example, heart-lung machines or artificial heart devices.