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.
Schematic of printed filaments. (a) Surface tension-driven bioink droplets at the outlet of the needle, (b) continuous filament after leaving the outlet the needle due to yield stress of the bioink, and (c) contact angle of the printed filament.
