ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,414, issued on Dec. 30, was assigned to NATIONAL TAIWAN OCEAN UNIVERSITY (Keetung, Taiwan).

"Carbon quantum dot, a composition thereof and a method for treating infection by using same" was invented by HanJia Lin (Keelung, Taiwan), ChihChing Huang (Keelung, Taiwan), HanYou Lin (Keelung, Taiwan), PeiXin Lai (Keelung, Taiwan), Fan Shen (Keelung, Taiwan), YuJu Chen (Keelung, Taiwan) and WanChing Kuo (Keelung, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a carbon quantum dot having a graphite core and a surface including components, such as compounds derived from formula (I) and halogens, and having a positive charge for antibacteri...