Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
EDC reactions with gelatin after formation of the O-acylisourea intermediate. (1) reaction with water, (2) slow reaction with amino groups, (3) reaction with a nearby carboxyl group, (4) formation of N-acylisourea, and (5) fast reaction of anhydride with amino group (after Nakajima and Ikada6).
