<p>This image shows geometrically defined cellular patterns with hydrogels bioprinted using computer-assisted design software. The circular pattern  was created using fibroblast cells engineered to express green or red fluorescent proteins. 
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Credit: Paige Derr, NCATS
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/64860478@N05">National Center for Advancing Translational Sciences</a> from Bethesda, MD
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/64860478@N05/40812191430/">Bioprinting Cellular Patterns</a>