ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,590, issued on Oct. 28, was assigned to Ilumina Cambridge Ltd. (Cambridge, Great Britain).

"Hydrogel" was invented by Gianluca Andrea Artioli (Cambridge, Great Britain), Andrew A. Brown (Cambridge, Great Britain), Wayne N. George (Ilford, Great Britain), Colin Pilkington (London), Jem Pitcairn (Nottingham, Great Britain), Alexandre Richez (Cambridge, Great Britain) and Xavier von Hatten (Cambridge, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hydrogel includes a dendritic core with 2 to 30 arms, and first and second acrylamide monomers incorporated into each arm. The first acrylamide monomer is: (I), wherein R1 and R2 are independe...