One of the emerging technologies in molecular diagnostics of the last two decades is the use of gold nanoparticles (AuNPs) for biosensors. AuNPs can be functionalized with various biomolecules. such as nucleic acids or antibodies. to recognize and bind to specific targets. https://www.jmannino.com/best-grab-Kelway-SST-Salinity-Tester-top-mega/