公开(公告)号：US20250114458A1

公开(公告)日：2025-04-10

申请号：US18885648

申请日：2024-09-14

Applicant: Purdue Research Foundation

Inventor： Young Kim ,  Joshua Kim ,  Jungwoo Leem

IPC: A61K47/16 ,  A61K9/00 ,  A61K9/20 ,  A61K47/08 ,  A61K47/20

Abstract: A method of providing an edible printer dye for use as a predetermined pattern including a stealth quick response (QR) code taggant for an ingestible food or pharmaceutical product includes dissolving one or more edible infrared (IR) or near IR (NIR) light absorbing dyes in a carrier solution based on a predetermined concentration of the one or more IR or NIR light absorbing dyes, thereby generating an IR or NIR light absorbing dye solution, adding a mixture of dispersing agents to the dye solution, thereby generating an edible IR or NIR light absorbing dyes, loading the edible IR or NIR light absorbing dyes in any one of a printer cannisters, and loading other visible edible dyes in corresponding other printer cannisters.