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.
SEM images of layered films (whose dimension shown above images) prepared by casting of 0.5 w/v % sacran solution and annealed at 100, 120, and 140 °C. Images revealed layered patterns on side faces, whereas no specific pattern on the top face. Inset: Porous scaffolds prepared by freeze-drying of layered films (scale bars in insets: 200 mm).
