Thursday, February 27, 2020

Charles Lieber Is The Father Of EXTREMELY Wuhan Relevant Technology


Harvard |  Two of the world’s biggest threats may someday be reduced by wires thousands of times thinner than a hair but capable of detecting a single virus. The specter of worldwide viral epidemics is always with us, so detecting them quickly offers the possibility of saving thousands of lives. The pathogens also can be stealthy biological weapons, making their positive detection a vital national defense requirement.

“We want to find a single virus before it finds you,” says Charles Lieber, Hyman Professor of Chemistry at Harvard University. Tests recently completed in his laboratory show that these unimaginably thin nanowires can sense and distinguish between viruses that cause flu, measles, and eye infections. Lieber believes future versions will be able to spot HIV, Ebola, SARS, West Nile, hepatitis, bird flu, and other dangerous viruses.

“Viruses are among the most important causes of human disease and are of increasing concern as agents for bioterrorism,” Lieber says. “Our work shows that nanoscale silicon wires can be configured as detectors that turn on or off in the presence of a single virus particle. Such detectors could be fashioned into arrays capable of sensing thousands of different viruses, ushering in a new era for diagnoses, biosafety, and quick response to viral outbreaks.”

“Nano” refers to a “nanometer,” one billionth of a meter, four hundred billionths of an inch, or about 10 atoms in size. One hundred thousand wires, each 20 nanometers long, would fit on the head of a pin.

The Department of Defense, Office of Naval Research, and National Cancer Institute all supported Lieber’s research, and at least two commercial companies have shown interest in manufacturing nanosensors.

In his office, Lieber shows visitors a two-inch-square silicon and metal chip containg an array of nanowires and two pinhead-size entry ports through which blood, saliva, or other bodily fluids can enter. Air samples put into a fluid solution would also be tested this way.