Pregnancy test making?

Question

is it possible to find out how to make your own pregnancy tests, just wondering?

Answer 1

It's probably not possible to make your own pregancy test. it's not a chemical that hcg reacts to, it's the antibody of it. Look up immunoassays.

The way it's made is quite complicated (and why it costs so much!) You usually have to inject a mammal (such as a mouse, rat, rabbit) with hcg, let the mammal produce antiobodies against it, kill the animal, disect it's spleen, take out and purify the antibody, culture it with fbs, then apply some sort of dye to attach to the antibody, spray a line of this to the test strip, so that when your urine travels up the strip, if there is significant hcg then it will bind to that line. that's the gist of it.