An attractive technique that amplifies indicators based mostly on the current LFA design has emerged within the final 5-10 years. The technique mainly depends on the laser excitation of plasmonic gold NPs and the subsequently generated sign is way stronger than the color signal, resulting in the LOD enhancement. Note, GNPs are the most regularly used detection agents for in vitro diagnostics, especially in LFA. Like other plasmonic nanomaterials, GNPs characteristic a novel phenomenon known…