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.
Small grids by 3D printing. (a) sodium alginate/agarose (3:1), (b) sodium alginate/collagen (3:1), and (c) sodium alginate, sodium alginate/agarose (4:1) and sodium alginate/collagen (4:1). Reproduced from [116] with permission. Copyright (2018) Elsevier.
