ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,573, issued on Sept. 15, was assigned to Mississippi State University (Starkville, Miss.).
"Near infrared dyes for biological imaging and optoelectronic devices" was invented by Chathuranga S.L. Rathnamalala (Starkville, Miss.) and Colleen N. Scott (Starkville, Miss.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A near infrared dye comprising a counterion and a structure of Formula Iwherein the at least one of R1 and R2are 1-(thiophen-2-yl)piperidine, 1-(thieno[3,2-b]thiophen-2-yl)piperidine or 1-([2,2'-bithiophen]-5-yl)piperidine, and X, R, R3-R4, R19, R20 and R22-R29 are disclosed herein. Materials and compositions comprising the NIR dye can abs...