ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,715,882, issued on Aug. 25.

"Adduct comprising at least a metal selected from gold, silver and copper and an adduct of a carbon allotrop and a pyrrolic compound" was invented by Maurizio Stefano Galimberti (Milan), Vincenzina Barbera (Biancavilla, Italy) and Gabriele Candiani (Milan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to an adduct comprising metal particles and an adduct between an sp2 carbon allotrope and a pyrrole compound. In particular, the invention relates to an adduct comprising metal nanoparticles (NPs) and hydrophylic adducts between a sp2 carbon allotrope and a pyrrole compound. The metal preferentially...