This article explores microbubbles, tiny gas-filled spheres that can deliver drugs directly to specific organs, including the brain. They burst on command to open biological barriers, potentially improving treatment for conditions like cancer and neurological disorders. Researchers are investigating their therapeutic applications, although regulatory hurdles remain.

Researchers used focused ultrasound to stimulate the olfactory bulb in the brain, successfully inducing distinct smells like campfire and fresh air. They achieved this by positioning a transducer on the forehead, allowing for controlled stimulation of various scent sensations. The study suggests potential applications in non-invasive neuromodulation and memory encoding.

Researchers have developed a new ultrasound helmet that can non-invasively target deep regions of the brain, providing a potential alternative to surgical interventions. This innovative technology could revolutionize treatments for various neurological conditions by allowing precise stimulation without the need for invasive procedures.

Focused ultrasound technology, particularly histotripsy, is revolutionizing cancer treatment by offering non-invasive methods to destroy tumors without surgery. This innovative approach, recently approved for liver cancer treatment, uses high-frequency sound waves to break down cancerous tissue, enhancing recovery and reducing side effects. Research is ongoing to explore its effectiveness in other cancer types and its potential synergy with existing therapies.