The substance: gelatin sponge. Surgeon Hilger P. Jenkins and three colleagues at the University of Chicago School of Medicine put the sponge to the severest tests on 80 dogs. They cut the heart ...
The sponges developed are made of starch and gelatin and look like marshmallows. They are also biodegradable, according to the Smithsonian. “The starch-gelatin sponge is … featured with low ...