They made the new hydrogel with intertwined strands of a polyphenol compound, poly(gallic acid), and a cross-linkable biopolymer, gelatin methacryloyl (GelMA). Polyphenols are known to be strong adhesives. Meanwhile, GelMA’s biocompatibility and ability to cross-link in response to heat and light make it promising for medical applications, but it has historically been held back by being stiff and brittle.
by Prachi Patel, special to C&EN |
June 25, 2022