Pharmaceutics, Volume 13, Issue 11
November 2021 - 244 articles
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Cover Story: The anatomy and physiology of the eye strongly limit the bioavailability of locally administered drugs. An effective strategy for the topical treatment of several ocular disorders is the entrapment of therapeutics into nanocarriers; this enables drugs to reside on the ocular surface and/or to penetrate different ocular compartments.
Hyaluronan-cholesterol nanogels (NHs) have been revealed to be effective ocular permeation enhancers. Owing to their bioadhesive properties, NHs firmly interact with the superficial corneal epithelium, without penetrating the stroma, thus modifying the transcorneal penetration of loaded therapeutics, as well as hydrophilic and hydrophobic therapeutics.
Therefore, NHs formulations can improve the ocular bioavailability of the instilled drugs, thus driving the application of HA-based NHs in the treatment of eye diseases. View this paper