 JACKSON CENTER, PA ACCESSWIRE July 22, 2021 Halberd Corporation OTC PINK:HALB confirms the shipment of samples of metallic nanoparticles conjugated to Alzheimers Disease AD antibodies, Tau and Phosphorylated Tau. Having successfully conjugated the metallic nanoparticles via its breakthrough patent-pending process, GreenBioAZ shipped the materials to Youngstown State University YSU. 