Half a croissant, on a plate, with a sign in front of it saying '50c'
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Cough test

Tissue made with colour indicating binding sites.
  [vote for,

As I'm out of the biochemistry arena, Is it possible to manufacture, in vitro, some binding sites that change colour when bound?

My logic suggests a virus would need a certain level of infection before coughing starts to help transmission. Coughing into a test tissue would easily capture viral output. The tissue , if it is possible, would be a surface that has similar or the correct binding site and would cause the virus to try and inject it's take over chemistry. This act, the energy for a colour change, indicating infection.

Once infection is identified, care and help can be given. And of course, interactions can be traced.

wjt, Mar 14 2020

A bit on the nose there, [pertinax] https://www.youtube...watch?v=rKek0Y30Ctw
[Voice, Mar 14 2020]


       I have no idea whether this is feasible, but it sounds as though it ought to be. [+]
pertinax, Mar 14 2020

       However, I imagine an unintended side effect.   

       I imagine mandatory face masks made of this. I imagine one of them turning, as might be, a distinctive shade of green in response to a mild harrumph.   

       Then I imagine a small knot of people in protective clothing, their faces a combination of the early-modern surgical beak- mask and the klan hood.   

       And as I read the words "care and help can be given", I imagine this helpful team taking swift care of the green cougher, whose frantically kicking legs are visible only for a moment as they are bundled away.
pertinax, Mar 14 2020

       Thanks, [Voice]. But I hate it when I imagine a counterfactual dystopia, then check the news and find it's not counterfactual.
pertinax, Mar 14 2020

       The logic of magical thinking tells me I should therefore imagine utopiae instead. That's bound to work.
pertinax, Mar 14 2020

       Any tool has a counter productive use, it's just the advancement/growth of humanity in step with it's technology.
wjt, Mar 14 2020

       What perty said.
blissmiss, Mar 14 2020

       What [wjt] said. The first part of it, anyway ...
8th of 7, Mar 14 2020

       I was expecting the color change to be too small to be noticeable with the naked eye.
notexactly, Mar 15 2020

       The dollar store has immunochromic pregnancy tests for $1, so this is feasible.
beanangel, Mar 16 2020

       // The dollar store has .... tests for $1 //   

       Almost like it's possible to deduce some sort of causal relationship there...
8th of 7, Mar 16 2020

       // immunochromic //   

       You may be the fourth person in the world to use that word. I like it.   

       Also, a monoclonal antibody that detects SARS-CoV-2 was announced as having been identified a week or two ago, so that could be used. It was expected to initially be expensive to produce, though.
notexactly, Mar 20 2020

       Right on [+]
21 Quest, Mar 20 2020


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