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.
Scan electron micrographs of the stretched silk films (SSD-SF): (a) and (b), the alignment and deformation of filaments composed of outer layer of micelles; (c) and (d), the alignment and deformation of filaments composed of core of micelles; and e, the formation fo aligned filaments with diameter size about 10nm that similar with natural silk filaments.
