Preparation of Mucoadhesive Films of Polyelectrolyte Complexes for the Release of Chlorhexidine Diacetate

Authors

  • Ayla Carolina Vea-Barragán Faculty of Chemical Sciences and Engineering, Autonomous University of Baja California, Unidad Otay, Tijuana, Baja California, México. https://orcid.org/0000-0002-1125-1652
  • Nydia Alejandra Castillo-Martínez Health Sciences Center, Valle de las Palmas Unit, Autonomous University of Baja California, Tijuana, Baja California, Mexico. Blvd Universitario No. 1000, Valle San Pedro. CP: 21500 https://orcid.org/0000-0002-7460-9228
  • Aracely Serrano-Medina Faculty of Medicine and Psychology, Autonomous University of Baja California, Unidad Otay, Tijuana, Baja California, México https://orcid.org/0000-0002-6598-7016
  • Eduardo Alberto López-Maldonado Faculty of Chemical Sciences and Engineering, Autonomous University of Baja California, Unidad Otay, Tijuana, Baja California, México. https://orcid.org/0000-0002-1884-4821
  • Samuel Guillermo Meléndez-López Faculty of Chemical Sciences and Engineering, Autonomous University of Baja California, Unidad Otay, Tijuana, Baja California, México. https://orcid.org/0000-0001-7392-283X
  • José Manuel Cornejo-Bravo Faculty of Chemical Sciences and Engineering, Autonomous University of Baja California, Unidad Otay, Tijuana, Baja California, México. https://orcid.org/0000-0002-0013-8937

DOI:

https://doi.org/10.37636/recit.v311022

Keywords:

Polyelectrolyte films, Mucoadhesion, Chlorhexidine diacetate.

Abstract

Polyelectrolyte complexe’s films can be a vehicle for the controlled release of drugs in the oral cavity, seeking the interaction of the film with the epithelium of the buccal mucosa. The bioadhesion phenomenon is the retention of the system at the desired site to achieve liberation. In the present work, a release system was developed using polyelectrolyte polymers of opposite charge that form films by ionic complexation. The films were loaded with chlorhexidine diacetate for the treatment of oral infections. The solvent evaporation method was used for the preparation of films, containing arabic gum and chitosan (1: 1) and Noveon AA-1® 2% (w/v), which was included for its mucoadhesive properties. The films were prepared with the same proportions of polymers but adding chlorhexidine diacetate dissolved in ethanol 2% (w/v), before the evaporation of the solvent for the formation of the films. Swelling studies shows that films swell in solutions that simulate oral pH conditions. The films loaded with the drug release in vitro more than 90% of the drug in 24 hours. Microbiological tests showed that films loaded with chlorhexidine diacetate inhibit the growth of E. coli and P. aeruginosa in standardized sensitivity tests. The films studied show suitable characteristics for the release of chlorhexidine diacetate, demonstrating the inhibition of the growth of pathogenic microorganisms, so they have potential to be used in the treatment of patients with oral infections such as gingivitis and periodontal disease. 

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The results of the tests for anaerobic bacteria with the strains are shown: a) Escherichia coli b) Enterococcus faecalis c) Pseudomonas aeruginosa.

Published

2020-01-15

How to Cite

Vea-Barragán, A. C., Castillo-Martínez, N. A., Serrano-Medina, A., López-Maldonado, E. A., Meléndez-López, S. G., & Cornejo-Bravo, J. M. (2020). Preparation of Mucoadhesive Films of Polyelectrolyte Complexes for the Release of Chlorhexidine Diacetate. REVISTA DE CIENCIAS TECNOLÓGICAS, 3(1), 10–22. https://doi.org/10.37636/recit.v311022

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