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Current Drug Delivery

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ISSN (Print): 1567-2018
ISSN (Online): 1875-5704

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Review Article

Protein Nanoparticles Laden In situ Gel for Topical Ocular Drug Delivery

Author(s): Archana Rajan Pillai*, Bijal Prajapati and Abhay Dharamsi

Volume 21, Issue 1, 2024

Published on: 14 February, 2023

Page: [38 - 51] Pages: 14

DOI: 10.2174/1567201820666230123140249

Price: $65

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Abstract

Topical ocular delivery of drugs is most commonly preferred route by the patient and physician for the treatment of ocular diseases. The topical route is always followed with the disadvantages like tear turnover, nasolacrimal drainage, reduction in precorneal residence time, etc. To overcome these hindrances associated with topical ocular route, a novel drug delivery system is used for targeting the drug at a specific site. In the Novel Drug delivery System, protein-based nanoparticles are an attractive class of nanoparticles designed to deliver the drug at targeted site in slow and sustained release manner. They have a size in the range of 1-100 nm. Protein nanoparticles are leading, particularly for the topical ocular delivery like reduction in intra ocular pressure, providing sustained release and targeted drug delivery at the site of its action. Various methods are used for formulation of protein nanoparticles like desolvation, emulsification, complex coacervation, electrospray techniques. The characterization parameters include particle size, surface morphology, drug loading and entrapment efficiency. Protein nanoparticles can also be loaded in to the in situ gel forming polymers for increasing precorneal residence time of nanoparticles. The characterization parameters of in situ gelling systems are gelling time, rheological properties, gel strength. The review mainly describes the use of various proteins in preparation of protein nanoparticles, methods for preparation of protein nanoparticles, polymers used in in situ gelling system and evaluation as well as characterization parameters of protein nanoparticles, in situ gelling systems & patented information related to protein nanoparticles and in situ gelling system for ocular drug delivery.

Keywords: Ocular drug delivery, topical delivery, protein nanoparticles, in situ gelling systems, evaluation parameters, patented information.

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Graphical Abstract

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