Abstract
Drug delivery to the brain is a challenging task as many drugs do not cross the blood-brain barrier (BBB). As a result, designing strategies to target drugs to the brain requires significant effort. However, recent research has focused on the administration of drugs through the nose to the brain, a noninvasive way to bypass the BBB and deliver therapeutic molecules directly to the brain. Nose-to-brain drug delivery is a promising approach that allows for the direct transportation of therapeutic molecules to the brain while increasing drug concentration in the brain. This approach has gained considerable attention due to its non-invasive nature, which makes it feasible, reliable, and efficient. One promising approach for nose-to-brain drug delivery is the use of nanoparticles as a platform for drug and gene delivery. Nanoparticles offer several advantages, including the ability to protect therapeutic drugs from degradation and increase the efficacy of drug delivery due to their unique size, shape, and surface features. Nanoparticles can also be engineered to target specific cells or tissues, enabling more precise drug delivery to the brain. The use of nanoparticles for nose-to-brain drug delivery has been extensively studied, and recent developments have shown promising results. In addition, patents relating to medication targeting via the nasal route have been developed. These patents cover various aspects of drug delivery, including the use of different types of nanoparticles, methods for producing nanoparticles, and methods for delivering nanoparticles to the brain.
