Chinese scientists say they’ve developed a new, highly accurate COVID test that gives results in 4 minutes


Chinese scientists say they’ve developed a new coronavirus test that is as accurate as a PCR lab test however gives results inside 4 minutes.

Polymerase chain response (PCR) checks are broadly thought-about essentially the most accurate and delicate for detecting the virus that causes COVID-19, however they normally take a number of hours. During the surge of the highly transmissible Omicron variant, many labs have been unable to maintain up with heavy testing demand, ensuing in lengthy delays.

Researchers from Fudan University in Shanghai say they’ve a answer.

In a peer-reviewed article printed Monday in the journal Nature Biomedical Engineering, the staff stated their sensor — which makes use of microelectronics to investigate genetic materials from swabs — is fast and accurate at recognizing SARS-COV-2, the virus that causes COVID-19.

“We implemented an electromechanical biosensor for the detection of SARS-CoV-2 into an integrated and portable prototype device, and show that it detected (virus RNA) in less than four minutes,” the staff stated in the paper describing their molecular electromechanical system, or MolEMS.

The researchers stated their methodology provides velocity, ease of operation, excessive sensitivity and portability.

Their trial concerned taking samples from 33 individuals in Shanghai who had the coronavirus, in addition to 54 samples from individuals who weren’t contaminated. Some of the individuals in the unfavourable group have been wholesome, whereas others had fevers and a few had examined constructive for influenza. PCR checks have been performed in parallel.

The researchers stated the results from their methodology have been a “perfect” match with the PCR checks. All 33 instances have been precisely detected, and not one of the 54 individuals in the unfavourable group obtained false positives, the staff stated.

The Fudan researchers stated that as soon as developed, their testing machine might be used for fast testing in a number of conditions, together with airports, well being services and “even at home.”

They say the know-how might be utilized to test for different kinds of infections as nicely.

“Besides COVID-19, the development of MolEMS could allow for the ultraprecise diagnosis of other diseases in a few minutes, without the need for target purification, amplification or culture, which normally requires hours or days,” they write.

PCR checks not solely take extra time, additionally they require lab infrastructure that might be restricted in many nations, lowering the variety of instances that might be dealt with every day.

Developing handheld PCR test for coronavirus


And whereas speedy diagnostic checks have now develop into out there in many elements of the world, they’re typically much less accurate.

China is without doubt one of the world’s largest makers of coronavirus test kits.

According to customs knowledge, it exported $1.6 billion value of test kits in December, a 144% enhance from the earlier month.

Download our Free App

For Breaking News & Analysis Download the Free CBS News app