By Lynn L. Bergeson On February 21, 2019, scientists Abdon Pena-Francesh and Melik C. Demirel, at Pennsylvania State University, published an article on the use of squid teeth tandem repeat proteins that can be functionally used for biodegradable fibers and films. The flexible and tough material results from a protein present in the squid teeth, which can be grown biosynthetically by E. coli bacteria. This biosynthetic expression of squid teeth proteins presents a number of...