The claim is mostly true because Dasia Taylor developed a prototype suture dyed with beet pigment that changes from red to purple under alkaline conditions associated with infected wounds, although the provided sources do not establish that it became a clinically validated or commercially available surgical product.
Dasia Taylor,now 22, developed a surgical suture that changes color in response to pH changes associated with wound infections

17-year-old makes color changing sutures that detect infection - PBS News
Source: pbs.org
Key Evidence
PBS reports that Taylor created color-changing stitches intended to provide early detection of surgical-site infections, and People of Color in Tech describes the prototype changing from bright red to dark purple after exposure to an infection-like pH (; ).
pbs.orgpbs.org17-year-old makes color changing sutures that detect infection
peopleofcolorintech.compeopleofcolorintech.comMeet Dasia Taylor, The High Schooler That Invented Color-Changing Sutures To...
Additional reports identify beet juice as the dye and describe the response as occurring around pH 9 (; ; ).
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anklefootmd.comanklefootmd.comColor Changing Sutures Could Detect Infections After Surgery+1 more
The sources support the invention claim but do not verify clinical validation or current medical deployment.
What the Evidence Shows
Multiple sources report that Taylor developed color-changing sutures while she was a 17-year-old high-school student in Iowa. The prototype used beet juice as a dye applied to suture material, and reports describe a color shift from bright red to dark purple when exposed to a pH around 9, a level associated with some wound infections (; ; ; ).pbs.orgpbs.org17-year-old makes color changing sutures that detect infection
peopleofcolorintech.compeopleofcolorintech.comMeet Dasia Taylor, The High Schooler That Invented Color-Changing Sutures To...+2 more
The central technical description is supported: the suture responds to pH changes rather than directly identifying bacteria. That distinction matters because elevated wound pH can be associated with infection, but pH alone is not necessarily definitive proof of infection. The sources generally describe the device as a potential early-warning tool, particularly for surgical-site infections in low-resource settings, rather than as a confirmed diagnostic test (; ; ; ).anklefootmd.comanklefootmd.comColor Changing Sutures Could Detect Infections After Surgery
mdlinx.commdlinx.comColor-changing sutures could revolutionize infection detection+2 more
The age statement is temporally plausible. The principal reporting describes Taylor as 17 in 2021, and a person who was 17 during that period could be 22 as of August 3, 2026, depending on her birthday. However, the supplied sources do not independently document her current age or exact date of birth. They also do not provide evidence of completed clinical trials, regulatory approval, routine medical use, or commercialization.
The strongest evidence comes from PBS News, while several other sources repeat or summarize the same underlying account. Grokipedia is less reliable because it is a collaborative secondary source and the supplied search result does not provide independently verifiable documentation.