An official website of the United States government
Here's how you know
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.
Cells were cultured inside chitosan-gelatin microtubes (a-c) and chitosan microtubes (d-f) for 3 days. The cell viability and morphology were evaluated by live/dead assay. (scale bar: 100μm)