Ultrasound and delivery of drugs and nanoparticles

Mercy Afadzi.The research group Medical physics and technology, NTNU. Photo: Per Henning/NTNU

Ultrasound can be used to improve the delivery of drugs and nanoparticles to tumors and across the blood-brain barrier thereby enabling treatment of diseases in the brain.

Nanotechnology has started a new era in engineering multifunctional nanoparticles for improved cancer diagnosis and therapy, incorporating both contrast agents for imaging and therapeutics into so called theranostics NPs. Encapsulating the drugs into nanoparticles improves the pharmacokinetics and reduces the systemic exposure due to the leaky capillaries in tumours. However, the distribution of nanoparticles in tumour tissue is heterogeneous.

We are studying how ultrasound can improve the delivery of nanoparticles to cancer cells, and penetrate the blood-brain barrier thereby making it possible to treat disorder in the central nervous system. Drug delivery

Research topics