Ultrasound of a certain frequency selectively destroys cancer cells

A team of researchers at the California Institute of Technology has proposed a new and radical method of killing cancer cells using low-intensity ultrasonic waves.

Prior to that, the method of using high-intensity focused ultrasound (HIFU) showed the greatest efficiency in the fight against cancer cells. Under its influence, the affected cancerous tissue was heated and died. The main problem with the HIFU method is that it does not accurately focus the flow of these waves on the affected tissue, as a result of which healthy tissue can suffer.

A breakthrough year was 2016, when researchers at the California Institute of Technology Mike Ortiz and Stephanie Hayden published an article in the Journal of The Mechanics and Physics of Solids, in which they reported the creation of a mathematical model showing a sharp difference between the resonance frequencies of healthy and cancer cells.

In theory, this means that a very finely tuned sound wave, stimulating the vibration of the nucleolar membrane of the cancer cell, will gradually bring it to the point of rupture. At the same time, the natural frequency gap between healthy and malignant cells should leave healthy cells intact.

It is necessary to clarify that this research is in its earliest stages. This method has been tested only in cell cultures, now it must be continued on solid tumors, then on animals and only then on humans.