ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,890, issued on Feb. 17, was assigned to QanikDX OU (Tallinn, Estonia).

"Selective optical detection of organic analytes in liquids" was invented by Sergei Babitshenko (Tallinn, Estonia), Jaak Jarv (Tallinn, Estonia), Aleksei Kuznetsov (Tallinn, Estonia) and Anton Mastitski (Tallinn, Estonia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for detection of an organic analyte in a liquid sample, the method including: providing an assay substrate comprising a first component and a second component; the first component including a sensor molecule labeled with a quantum dot, the quantum dot immobilized to an assay substrate surface with a first li...