$2 One-Drop Blood Test Detects Hidden Diseases in 15 Minutes

HMMMM. Where have I heard this headline before?

>Nanoparticle-Supported, Rapid, and Electronic Detection of SARS-CoV-2 Antibodies and Antigens at the Subfemtomolar Level

https://pubs.acs.org/doi/10.1021/acsnano.5c12083

Oh hello Theranos