A three-dimensionally (3D)-printed microscope could detect COVID-19 in a drop of blood through the use of digital holographic microscopy and deep learning.
Developed by scientists at the University of Connecticut (UConn), the device uses low-cost components that UConn's Bahram Javidi says are easily acquired: a camera, a laser diode, an objective lens, a glass plate, and a complementary metal-oxide semiconductor (CMOS) image sensor.
In a test of blood samples from 10 patients who tested positive for the virus and 14 health care workers who tested negative, the microscope was able to detect the coronavirus in 80% of patient samples. The test's efficacy for early detection remains unclear.
From IEEE Spectrum
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