Abstract

Presently, nanotechnology appears as a powerful and innovative tool in the medical field. It has various advantages over the conventional drug therapy such as therapeutic specificity, has less side effects, reduces dose of drug, has more precise treatment and can access the inaccessible areas of the body like brain, tumor cells, etc. The human brain is the most complicated part of the body which is highly protected with the blood-brain barrier (BBB) and the other protective measures of the body. The available treatments for brain disorder are highly invasive (parenteral or surgical procedures) in nature or cause high peripheral toxicity (oral administration). Thus, a prominent strategy is needed which can easily approach the brain and offers a more specific treatment. Nanomedicines are effective tools used for the diagnosis and treatment of brain disorders.

Key words: Brain, neurodegenerative disorders, nanotechnology, gold nanoparticle, quantum dots.