COVID-19 Testing Device Developed by Researchers That Can Detect Virus Presence in 30 Seconds

COVID-19 Testing Device Developed by Researchers That Can Detect Virus Presence in 30 Seconds

COVID-19 Testing Device Developed by Researchers That Can Detect Virus Presence in 30 Seconds

A group of researchers has contributed to the development of a COVID-19 testing gadget that can identify coronavirus infection in as little as 30 seconds, with the same sensitivity and accuracy as the gold standard of testing, the polymerase chain reaction (PCR) test.

According to a recent peer-reviewed study released by the University of Florida group, the gadget is 90% accurate and sensitive, just like PCR testing.

It has the potential to drastically improve public health authorities' capacity to detect and respond to the coronavirus or the next pandemic.

"There's nothing else like it," said University of Florida researcher Josephine Esquivel-Upshaw.

However, the US Food and Drug Administration has not yet authorized it.

First, researchers must guarantee those test findings are not tainted by cross-contamination with other infections prevalent in the mouth and saliva, according to the researchers. Other coronaviruses, staph infections, the flu, pneumonia, and 20 other diseases are among them. That work is still going on.

The hand-held device is powered by a 9-volt battery and employs a cheap test strip containing coronavirus antibodies linked to a gold-plated film at its tip, similar to those used in blood glucose meters. A little saliva sample is collected by placing the strip on the tongue. The strip is then put into a reader that is connected to the device's brains through a circuit board.

When a person is infected, the coronavirus in their saliva latches to the antibodies and sets off a dance with them, which is triggered by two electrical pulses processed by a particular transistor. The electrical conductivity of the sample varies as the coronavirus concentration rises. As a result, the voltage of the electrical pulses changes.

The voltage signal is amplified a million times and transformed into a numerical number, which is the electrochemical fingerprint of the sample. The lower the value, the greater the viral load, and the higher the value, the positive outcome.

The device's capacity to measure viral and antibody load, according to the researchers, makes it particularly helpful for therapeutic applications.



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