A physicist and his biologist son destroyed a common virus using a superfast pulsing laser, without harming healthy cells. The discovery could lead to new treatments for viruses like HIV that have no cure.
In the latest research, Tsen and his son demonstrated that their laser technique could shatter the protein shell, or capsid, of the tobacco mosaic virus, leaving behind only a harmless mucus-like mash of molecules.
The virus-deactivating laser works on a principle called forced resonance. The scientists tune the laser to the same frequency the virus vibrates on. Then they crank up the volume. Like a high-pitched sound shattering glass, the laser vibrates the virus until it breaks.