Check out my article on Heather Dewey-Hagborg on BeautifulDecay:
Artist Heather Dewey-Hagborg uses DNA extracted from items like chewing gum and cigarettes to create three-dimensional portraits. For her project, “Stranger Visions,” Dewey-Hagborg collected discarded trash from the streets of Brooklyn, New York and sequenced them at a biotechnology lab. Through this process, she was able to isolate specific DNA strands, which helped her unravel the ethnic-gender identity of the past users. She used that information to create a sketch of what each of these people might have looked like. This information was then relayed via three-dimensional printer into the final hanging works.