ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,502,353, issued on Dec. 23, was assigned to NATIONAL CHENG KUNG UNIVERSITY (Tainan, Taiwan).

"Methods for treating cancers by using nanoframes of Prussian blue or an analogue thereof and its production methods" was invented by Chen-Sheng Yeh (Tainan, Taiwan), Wei-Peng Li (Tainan, Taiwan) and Liu-Chun Wang (Tainan, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein is a method for producing a nanoframe of Prussian blue (PB) or an analogue thereof (PBA). The producing method comprises: (a) mixing a nanocube of PB or PBA with an acid solution to form a mixture; and (b) heating the mixture of the step (a) in an oil bath at 80-100deg C. f...