FIG. 4.
Nozzle configuration: (A) Sequential, (B) Simultaneous, (C) Coaxial ejects to fabricate multilayered, mixed fibers, and core-shell structure of fibers, respectively. Color images available online at www.liebertonline.com/teb.
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.