Have you heard about nanotechnology barcodes? If no then let me tell you that these are not the normal barcodes which are used for tracking assets but is the latest biosensing platform which uses engineered nanowires as an alternate substrate for immunoassays. These nanowires have been built from sub-micrometer layers of different metals with nickel, gold and silver and hence act as barcode for detection of a variety of pathogens. It can also help in simultaneous identification of multiple pathogens through unique fluorescent characteristics. As per Jeffrey B.-H. Tok, Lawrence Livermore National Laboratory: The ability to miniaturize and adapt traditional bench-top immunoassay protocols to a fully automated micro-or nano-fluidic chip holds tremendous promise to enable multiplex, efficient, cost-effective and accurate pathogen sensing systems for both biodefense and medical applications. For developing this researchers used multi striped metallic nanowires in a suspended format for quick identification of sensitive, single and multiplex immunoassays which simulated biowarfare agents ranging from anthrax to botulinum.