I can understand how molecule-coated gold nanoparticles suspended or sinking in a blood sample can be detected by light at a cost of only $2 per test, but I would think that the process of coating the nanoparticles with the appropriate antibodies, antigens, etc. would be quite a bit more costly. Perhaps those ingredients are prepared in volume keeping them cheap?
londons_explore 19 hours ago [-]
COVID lateral flow tests use gold nanoparticles to make the purple lines.
I assume this is the same, but for a wider array of diseases.
Rendered at 17:11:30 GMT+0000 (Coordinated Universal Time) with Vercel.
I assume this is the same, but for a wider array of diseases.