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Self-emulsifying drug delivery system: mucus permeation and innovative quantification technologies

Abdulkarim, Muthanna ORCID: https://orcid.org/0000-0001-5753-7261, Sharma, Peeyush Kumar and Gumbleton, Mark ORCID: https://orcid.org/0000-0002-7386-311X 2019. Self-emulsifying drug delivery system: mucus permeation and innovative quantification technologies. Advanced Drug Delivery Reviews 142 , pp. 62-74. 10.1016/j.addr.2019.04.001

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Abstract

Mucus is a dynamic barrier which covers and protects the underlying mucosal epithelial membrane against bacteria and foreign particles. This protection mechanism extends to include therapeutic macromolecules and nanoparticles (NPs) through trapping of these particles. Mucus is not only a physical barrier that limiting particles movements based on their sizes but it selectively binds with particles through both hydrophilic and lipophilic interactions. Therefore, nano-carriers for mucosal delivery should be designed to eliminate entrapment by the mucus barrier. For this reason, different strategies have been approached for both solid nano-carriers and liquid core nano-carriers to synthesise muco-diffusive nano-carrier. Among these nano-strategies, Self-Emulsifying Drug Delivery System (SEDDS) was recognised as very promising nano-carrier for mucus delivery. The system was introduced to enhance the dissolution and bioavailability of orally administered insoluble drugs. SEDDS has shown high stability against intestinal enzymatic activity and more importantly, relatively rapid permeation characteristics across mucus barrier. The high diffusivity of SEDDS has been tested using various in vitro measurement techniques including both bulk and individual measurement of droplets diffusion within mucus. The selection and processing of an optimum in vitro technique is of great importance to avoid misinterpretation of the diffusivity of SEDDS through mucus barrier. In conclusion, SEDDS is a system with high capacity to diffuse through intestinal mucus even though this system has not been studied to the same extent as solid nano-carriers.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Pharmacy
Publisher: Elsevier
ISSN: 0169-409X
Date of First Compliant Deposit: 1 May 2019
Date of Acceptance: 5 April 2019
Last Modified: 13 Nov 2023 07:56
URI: https://orca.cardiff.ac.uk/id/eprint/122100

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