FEATURE: From lab idea to $2.25 billion: Ultrasound destroys cancer without scalpels

HONG KONG - Biomedical engineer Zhen Xu has spent a quarter of a century developing a non-invasive, ultrasound-based technique to treat tumor cells, in what is potentially a breakthrough treatment of cancer.

Xu co-invented the histotripsy technique, which can target and liquefy tumor cells while leaving surrounding tissue unharmed. Unlike conventional invasive cancer procedures, no incision is required.