MALARIA is one of the major health problem Across the developing world? One area of particular interest to the World Health Organization is finding a better way to detect malaria.Andrea Armani, Irani Professor of Engineering and Materials Science at the University of Southern California and her Team has produced a  magnetic Malaria detector.
The device is basically a box about the size of a toaster oven.
Inside are a laser, a magnet and a detector.
It’s not a fancy laser.
“It has about the same amount of power as a laser pointer,” Armani says.
Nor is it a special magnet.
“It’s about the same strength as a refrigerator magnet,” she says. “And it costs just as much.”
All you do is put a small amount of blood in a clear tube and drop the tube into the box. The device measures the amount of light transmitted through the sample with and without the magnet present. If there are parasites present, the light transmitted through the tube will increase because the magnetic crystals are pulled out of the light beam.
Armani and her colleagues design the box to be rugged. It’s been shipped to various places around the country.
 device takes advantage of the fact that the malaria parasite produces tiny crystals inside infected red blood cells. These crystals have a magnetic property. Put a magnet next to a drop of infected blood, and the crystals move toward the magnet.
The device works by shining a laser light through a drop of blood, measuring how much light is transmitted, and then holding the magnet close to the blood sample and taking another measurement.
Below is a video made by Armani explaining how magnetic malaria detector works


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