Chinese scientists say they have developed a new Covid-19 testing device that can return accurate results within four minutes and is as accurate as the widely used PCR tests.
Researchers from Fudan University in Shanghai said that, if developed further, their device could be used for testing in airports, clinics, emergency departments and homes. Unlike the polymerase chain reaction (PCR) tests currently in use, samples would not require time-consuming laboratory analysis, they said.
The researchers said the new test device used tiny mechanical components made of DNA combined with microelectronics to detect genetic material in a swab sample and convert it to an electrical signal. The device is connected to a computer or smartphone to show a result.
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