In vitro microbiological and drug release of silver/ibuprofen loaded wound dressing designed for the treatment of chronically infected painful wounds

Alejandra Mogrovejo-Valdivia, Mickael Maton, Maria Jose Garcia-Fernandez, Nicolas Tabary, Feng Chai, Christel Neut, Bernard Martel, Nicolas Blanchemain

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5 Citas (Scopus)

Resumen

This study consisted of developing a dressing loaded with silver (Ag) and ibuprofen (IBU) that provides a dual therapy, antibacterial and antalgic, intended for infected painful wounds. There-fore, non-woven polyethyleneterephtalate (PET) textiles nonwovens were pre-treated by cyclodextrin crosslinked with citric acid by a pad/dry/cure process. Then, textiles were impregnated in silver so-lution followed by a thermal treatment and were then coated by Layer-by-Layer (L-b-L) deposition of a polyelectrolyte multilayer (PEM) system consisting of anionic water-soluble poly(betacyclodextrin citrate) (PCD) and cationic chitosan. Finally, ibuprofen lysinate (IBU-L) was loaded on the PEM coating. We demonstrated the complexation of IBU with native βCD and PCD by phase solubility diagram and1 H NMR. PEM system allowed complete IBU-L release in 6 h in PBS pH 7.4 batch (USP IV). On the other hand, microbiological tests demonstrated that loaded silver induced bacterial reduction of 4 Log10 against S. aureus and E. coli and tests revealed that ibuprofen lysinate loading did not interfere with the antibacterial properties of the dressing.

Idioma originalInglés
Número de artículo805
PublicaciónAntibiotics
Volumen10
N.º7
DOI
EstadoPublicada - jul. 2021
Publicado de forma externa

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