Spit, Wait, Scan – Low-Cost 3D Printed Device Can Detect COVID-19 in Your Spit

By: | August 9th, 2021

covid 19 test

covid 19 test

The coronavirus pandemic is far from over, it’s still wreaking havoc across the world. Despite the widespread availability of accurate and efficient diagnostic testing for detection, there is still a need to send most samples to a lab for processing. It can take anything from a few hours to days to receive the test results. The entire process is costly and time-consuming.

Faster diagnostic kits can help control the pandemic

Now, researchers at the Wyss Institute for Biologically Inspired Engineering at Harvard University, Massachusetts Institute of Technology (MIT), and several Boston-area hospitals have created a low-cost device to make testing easier and faster.

The diagnostic device is called Minimally Instrumented SHERLOCK (miSHERLOCK). It can detect SARS-CoV-2 from a saliva sample in about an hour. There is no need to transport patient samples to a laboratory. The results can be read and verified by an accompanying smartphone app.

Easier, simpler, and more effective!

During the testing, miSHERLOCK correctly identified COVID-19-positive patients 96% of the time and patients without the disease 95% of the time. The device could also successfully distinguish between three different variants of SARS-CoV-2 in experiments. It can be easily reconfigured to detect additional variants like the Delta.

The device relies on CRISPR technology. It is 3D printed and costs just $15. Re-use can bring down the cost of individual tests down to $6 each.

Nidhi Goyal

Nidhi is a gold medalist Post Graduate in Atmospheric and Oceanic Sciences.

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