Neural growth factor proteins can limit damage from Alzheimer’s disease but are normally blocked by the Blood Brain Barrier. Scientists at Israel’s Technion Institute and Bar-Ilan University have developed nanoscale silicon chips that deliver these proteins directly to the target brain tissue.

https://www.jpost.com/HEALTH-SCIENCE/Technion-Bar-Ilan-U-create-protein-administration-chip-for-Alzheimers-treatment-608747