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smartphone attachment can photograph nano-scale objects

by:Tuowei     2019-09-03
Very close to you. up, Mr. Germ.
A professor at the University of California, Los Angeles College of work and applied sciences, Henry Samuli, developed a smartphone accessory that can image objects
The width of a person\'s hair.
In a recent paper published in the Journal of the American Chemical Society ACS Nano, Aydogan Ozcan, a professor and senior author of electrical engineering and bioengineering, said, he and his colleagues used the device to photograph single-person giant cell virus particles.
The device, which weighs about half a pound, will enable scientists
Scale objects such as bacteria and viruses in the wild or in remote areas where traditional laboratory microscopy is not available.
The device is made with a 3D printer and installed on one side of the smartphone, but the screen is clearly visible.
Solid or liquid is placed in a sample tray, similar to glass microscope slides placed in front of a smartphone camera lens.
The laser diode illuminates the sample.
One human hair is about 100,000 nanometers thick.
The device is capable of shooting special labeled fluorescent polystyrene beads as small as 100 nm.
They also got images of human giant viruses about 150 to 300 nanometers in size.
HCMV is a member of the herpes virus family that causes birth defects or accelerates the death of organ recipients or those with impaired immune systems.
Ozcan developed other smartphones
It also includes a device that can perform a common kidney test and another device that can detect allergens in food.
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