this is patrick von den bogaard. patrick, welcome. thank you.t, i will give you a swab and ask you to let saliva pool underneath your tongue. and when that is done, you can put this in the pool and let it soak for about 15 seconds. this test is doubly unusual because it only uses saliva. it's no surprise, really, that quite a few people across the world are trying to develop an accurate and effective saliva—based test — one doesn't require nostril probing or gag—inducing throat swabs. the super—fast result here is achieved using nanotechnology. the idea is that by forcing a small amount of saliva into a tiny sensor the confined molecules in the saliva react with each other and create a readable solution much faster. the results can be analysed by a microscope in the machine. 0k, well, this has been cooking for more than a minute. it says its complete, so let's see what the result is. so the result is negative. can i just say this test says i am negative and the lateral flow i did today says the same thing. tests like these seem very impressive a