Researchers at ETH Zurich have developed a method for concentrating and releasing drugs in the brain with pinpoint accuracy. This could make it possible in the future to deliver psychiatric and cancer drugs and other medications only to those regions of the brain where this is medically desirable.
Today, this is practically impossible — drugs travelling through the bloodstream reach the entire brain and body, which in some cases causes side effects. The new method is non-invasive, with precise drug delivery in the brain controlled from outside the head using ultrasound. Mehmet Fatih Yanik, Professor of Neurotechnology, and his team of scientists have published their findings in the journal Nature Communications.
In order to prevent a drug from acting on the entire brain and body, the new method involves special drug carriers that wrap the drugs in spherical lipid vesicles attached to gas-containing ultrasound-?sensitive microbubbles. These are injected into