Researchers are developing a portable device that gives rapid, accurate test results with the help of a regular smartphone camera. By estimating the number of virus particles in samples, the device could also determine an infection’s progress.
The new test uses a different technology called CRISPR, which the researchers believe can reliably detect the RNA, or genetic material, of SARS-CoV-2 without amplifying it first.
This means that it is possible not only to detect the presence of the virus but also to estimate the number of virus particles, which is a good indicator of the infection’s progress. Cas13a is an enzyme that cleaves RNA molecules. By combining it with a strip of “guide RNA,” scientists can target it at a telltale sequence in a particular virus’s RNA.
https://www.cell.com/cell/fulltext/S0092-8674(20)31623-8?utm_source=EA
https://www.medicalnewstoday.com/articles/smartphone-based-device-could-detect-sars-cov-2#Phone-camera
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