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Microbiome sampling pill in the small intestine
The pill is the first known working device capable of non-invasively and accurately assessing the profile of bacterial species inhabiting any stage of the gastrointestinal tract

MEDFORD/SOMERVILLE, Mass. (July 24, 2019) — A research team led by Tufts University engineers has developed a 3D printed ingestible pill that samples bacteria found in the gut — known as the microbiome — as it passes through the gastrointestinal tract (GI). The ability to profile bacterial species inhabiting the gut could have important implications for the understanding of conditions that affect and are affected by the intestinal microbiome, according to the researchers.

Source: https://now.tufts.edu/news-releases/3d-printed-pill-samples-gut-microbiome-aid-diagnosis-and-treatment