I also don't think this particular test is an antibody test? It seems that this test detects viral particles based on: "The most proven and ready to scale tech

I also don't think this particular test is an antibody test? It seems that this test detects viral particles based on: "The most proven and ready to scale technology is based on surface plasmon resonance. It’s able to detect even a very small number of viral particles, which is very important because we want to detect everyone who is contagious" (6th paragraph in the "A third solution" paragraph)