ALEXANDRIA, Va., May 12 -- United States Patent no. 12,623,915, issued on May 12, was assigned to Technion Research & Development Foundation Ltd. (Haifa, Israel).
"Colloidal flow-gate" was invented by Mais Khaskia (Haifa, Israel), Ofer Manor (Haifa, Israel) and Oz M. Gazit (Haifa, Israel).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a flow-gate design that utilizes chemo-responsive colloidal particles to control the flow rate therethrough. The flow-gate operates by changing the compactness of the colloidal particles, which changes in response to changes in pH or ionic strength in the flow medium or the surrounding environment. The design also allows the flow-gate as a size-dis...