Acrylated Eudragit® E PO as a novel polymeric excipient with enhanced mucoadhesive properties for application in nasal drug delivery

Porfiryeva, N. N., Nasibullin, S. F., Abdullina, S. G., Tukhbatullina, I. K., Moustafine, R. I. and Khutoryanskiy, V. V. ORCID: https://orcid.org/0000-0002-7221-2630 (2019) Acrylated Eudragit® E PO as a novel polymeric excipient with enhanced mucoadhesive properties for application in nasal drug delivery. International Journal of Pharmaceutics, 562. pp. 241-248. ISSN 0378-5173 doi: 10.1016/j.ijpharm.2019.03.027

Abstract/Summary

Eudragit® E PO (EPO) is a terpolymer based on N,N-dimethylaminoethyl methacrylate with methylmethacrylate and butylmethacrylate, produced by Evonik Industries AG as a pharmaceutical excipient. In this work, EPO was chemically modified through reaction with acryloyl chloride. The successful modification of EPO was confirmed by FTIR, NMR-spectroscopy, elemental and thermal analysis. The degree of acrylation was determined by permanganatometric titration. The slug mucosal irritation test was used to demonstrate non-irritant nature of EPO and its acrylated derivatives (AEPO). The mucoadhesive properties of EPO and AEPO were evaluated using freshly excised sheep nasal mucosa and it was demonstrated that acrylated polymers facilitated greater retention of sodium fluorescein on mucosal surfaces compared to solution mixture of this dye solution with EPO as well as free dye.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/83010
Identification Number/DOI	10.1016/j.ijpharm.2019.03.027
Refereed	Yes
Divisions	Interdisciplinary centres and themes > Chemical Analysis Facility (CAF) > NMR (CAF) Life Sciences > School of Chemistry, Food and Pharmacy > School of Pharmacy > Pharmaceutics Research Group
Uncontrolled Keywords	Acrylated polymers, Eudragit® E PO, Mucoadhesion, Nasal drug delivery, Nose-to-brain delivery, Slug mucosal irritation
Publisher	Elsevier
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