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. 2016 Dec 1;4:e2661. doi: 10.7717/peerj.2661

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©2016 Neches et al.

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited.

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3D printed parts from UC Davis with and without UV treatment (B and C) were suspended in sterile Terrific Broth supplemented with potassium salts, along with a negative control (A) and a positive control (D). After 24 h at 37 °C, no growth was observed for parts treated with UV. Tube (F) contains a part from Michigan State after 48 h of incubation in Terrific Broth, along with negative and positive controls (E and G). No growth was observed 96 hours after inoculation.