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.
Representative photographs of a single zone, paper-based Transwell assay format. (a) Seeding a single zone paper scaffold with cells suspended in collagen, using a 2.5 μL pipette. (b) Top-view of single zone scaffolds floating at the air-liquid interface of individual wells of a commercially available 96-well plate. Scale bar 10 mm.
