Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

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.

View full-text article in PMC

. 2021 Feb 26;13(3):308. doi: 10.3390/pharmaceutics13030308

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

Corneal stroma structures and keratocytes. (A) Reproduced with permission form [42], Elsevier, 2018. (a) Images of extrusion bio-printed corneal stroma. Scale bar 20 mm. (b) Representative live/dead stain images using fluorescence microscopy after 3D bioprinting, showing live (green) and dead (red) cells. Scale bar 250 µm. (B) Reproduced with permission from [44], IOP Science, 2019. (a) Stereomicrographs of the methacrylate gelatin scaffold. Scale bar 1 mm. (b) Live/dead cell viability assay of 3D printed GelMA scaffolds on day 21, showing live (green) and dead (red) cells. Scale bar 100 μm. (C) Reproduced with permission from [37], Wiley, 2019. (a) Macrograph of ink-jet bio-printed 3D type I collagen/agarose scaffold. (b) Human corneal stroma keratocytes (CSK) stained with live/dead staining 7 days after bioprinting, showing live (green) and dead (red) cells. It is noticeable that the CSK is spreading and shows typical dendritic shapes in the scaffold. Scale bar 100 µm.