2016-05-102016-05-102016-04-26Wong, Michael S., Bagaria, Hitesh Ghanshyam, Kini, Gautam Chandrakanth and Ko, Wen Yin Lynn, "Converting nanoparticles in oil to aqueous suspensions." Patent US9321021B2. issued 2016-04-26. Retrieved from <a href="https://hdl.handle.net/1911/90427">https://hdl.handle.net/1911/90427</a>.https://hdl.handle.net/1911/90427An improved process for converting an oil suspension of nanoparticles (NPs) into a water suspension of NPs, wherein water and surfactant and a non-surfactant salt is used instead of merely water and surfactant, leading to greatly improved NP aqueous suspensions.24engUtility patentUS9321021B2