US Patent Issued to University of Manitoba on Sept. 29 for "Color-changing antibacterial nanofiber" (Canadian Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,746,214, issued on Sept. 29, was assigned to University of Manitoba (Winnipeg, Canada).

"Color-changing antibacterial nanofiber" was invented by Song Liu (Winnipeg, Canada) and Sarvesh Logsetty (Winnipeg, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A bacteria-responsive color-changing, core-shell nanofiber, comprising polyurethane (PU), a hemicyanine-based chromogenic probe localized in the core-shell nanofiber near the surface of the shell, polyvinylpyrrolidone (PVP) dopant in the shell, the hemicyanine-based chromogenic probe further comprising a labile ester linkage that is enzymatically cleavable by bacterial lipase released from clinical...