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US 11,698,344 B2Granted
PH indicator swabs for biomonitoring and diagnostics
AssigneeUniversity of South Carolina
InventorsEhsan Jabbarzadeh, Sara Eslambolchimoghadam
Life of this patent
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Abstract
Medical swabs incorporating a pH indicator in an absorbent crosslinked hydrogel matrix. The medical swabs can provide for visual monitoring of biological pH. The medical swabs can be used to monitor wounds, such as chronic wounds, burn wounds, surgical wounds, etc., as well as other biological fluids. The swabs can be used for early detection of chronic wounds and/or early detection of bacterial infections.
Claims11
A medical swab comprising:
- a swab surface;
- a crosslinked absorbent hydrogel matrix comprising a biocompatible polymer at the swab surface;
- a photoinitiator;
- and
- a pH indicator retained within the crosslinked absorbent hydrogel matrix, the pH indicator exhibiting a detectable color change in the visible spectrum that is indicative of the pH of a fluid in contact with the pH indicator.
2 more elements
Dependencies are inferred from the claim text.