text:  But then they have the benefit of actually being dissolvable. These fibers are made from natural materials and they break down when exposed to heat. He's been working with gelatin, which is a common food material. And it's also a waste product that typically ends up in landfills. And so we try to recover that gelatin and then use that material to make these fibers. The researchers created a machine that could spin fibers made from gelatin.