Figure 4.
Addition of excess STPP can lead to hollowing inside the hydrogel. SEM images of the surface microstructures of M-SCT-0.75 hydrogels and SEM images for SCTs’ hydrogels with different STPP amounts.
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.