Evaluation of photodynamic therapy on nanoparticles and films loaded-nanoparticles based on chitosan/alginate for curcumin delivery in oral biofilms

Autor(es)

Silvestre, Amanda Leticia Polli ; dos Santos, Aline Martins ; de Oliveira, Analu Barros ; Ferrisse, Tulio Morandin ; Brighenti, Fernanda Lourencao ; Meneguin, Andreia Bagliotti ; Chorilli, Marlus

• Tipo de documento: Artigo Científico
• Fonte: International Journal of Biological Macromolecules; v. 240, p. 13-pg., 2023-04-20.

Resumo

Nanoparticles and nanoparticle-loaded films based on chitosan/sodium alginate with curcumin (CUR) are promising strategies to improve the efficacy of antimicrobial photodynamic therapy (aPDT) for the treatment of oral biofilms. This work aimed to develop and evaluate the nanoparticles based on chitosan and sodium alginate encapsulated with CUR dispersed in polymeric films associated with aPDT in oral biofilms. The NPs were ob-tained by polyelectrolytic complexation, and the films were prepared by solvent evaporation. The photodynamic effect was evaluated by counting Colony Forming Units (CFU/mL). Both systems showed adequate character-ization parameters for CUR release. Nanoparticles controlled the release of CUR for a longer period than the nanoparticle-loaded films in simulated saliva media. Control and CUR-loaded nanoparticles showed a significant reduction of 3 log10 CFU/mL against S. mutans biofilms, compared to treatment without light. However, biofilms of S. mutans showed no photoinactivation effect using films loaded with nanoparticles even in the presence of light. These results demonstrate the potential of chitosan/sodium alginate nanoparticles associated with aPDT as carriers for the oral delivery of CUR, offering new possibilities to improve the treatment of dental caries and infections. This work will contribute to advances in the search for innovative delivery systems in dentistry. (AU)

• Processo FAPESP: 21/01191-0 - Indução de tolerância e caracterização do biofime de Candida albicans submetido à terapia fotodinâmica antimicrobiana
• Beneficiário: Túlio Morandin Ferrisse
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 18/23096-7 - Avaliação do potencial de filmes de alginato de sódio contendo curcumina encapsulada em nanopartículas de quitosana associados à terapia fotodinâmica para o tratamento de biofilmes orais
• Beneficiário: Amanda Letícia Polli Silvestre
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 20/07110-0 - Potencial da terapia fotodinâmica na modulação da resposta inflamatória e nos fatores de virulência microbianos: avaliação em modelo de co-culturas tridimensionais de fibroblastos gengivais, Candida albicans e Staphylococcus aureus
• Beneficiário: Analú Barros de Oliveira
• Modalidade de apoio: Bolsas no Brasil - Doutorado