ALEXANDRIA, Va., May 19 -- United States Patent no. 12,631,558, issued on May 19, was assigned to South China University of Technology (Guangzhou, China).

"Microfluidic ion detection chip having bubble brightening structure, and detection method thereof" was invented by Zongtao Li (Guangzhou, China), Hong Wang (Guangzhou, China), Yongheng Xing (Guangzhou, China), Jiasheng Li (Guangzhou, China), Jiexin Li (Guangzhou, China), Zhou Lu (Guangzhou, China) and Junhao Wu (Guangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A microfluidic ion detection chip having a bubble brightening structure includes a substrate, an upper plate, two glass cover plates, and a foam board. The substrate is provided with ...