Solid Lipid Nanoparticles for Brain Targeting
Brain is considered to be highly impermeable barrier, possessing different obstacles like presence of enzymes, presence of tight junctions that limit the entry for most of the drugs. The presence of these obstacles, possess a challenge for administration of the drugs. The conventional means of drug delivery in form of emulsions, fail to overcome these obstacles, and hence there is a need for newer drug delivery approach, that will cross these barriers of the brain. So, these nanoparticles can be an alternative to other conventional systems. They offer several advantages such as improved bioavailability and solubility that are composed of macromolecular materials like lipids and polymers possess low cytotoxicity, high drug loading capability, and good scalability these are the most effective colloidal carriers that have the ability to incorporate drugs into nanocarriers and used as drug targeting to specific area. Thus, this article will emphasise on properties of Blood Brain Barrier, strategies to overcome the blood–brain barrier, literature regarding the use of SLNs in various neurological disease states, production methods of SLN and its evaluation. Hence, these solid lipid formulations can be a new form and one of the promising approach for drug delivery system in future, that have remarkable possibility to cross the BBB.
Keywords: Solid lipid nanoparticles, Nanocarriers, Blood–brain barrier
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