https://phys.org/news/2018-07-tiny-robot-game-changer-tuberculosis.html

The Brock team's latest technology builds on an earlier version of the microscopic robot—called the three-dimensional DNA nanomachine—they created in 2016 to detect diseases in a blood sample within 30 minutes.

In this latest version, the team, headed by Assistant Professor of Chemistry Feng Li, re-designed the nanomachine so that it could uncover mutations in the genes found in the bacteria that causes tuberculosis.