Evaluation of proanthocyanidin- crosslinked sericin/alginate blend for ketoprofen extended release

Autor(es)

de Freitas, Emanuelle Dantas ^[1] ; Lima, Beatriz Mayumi ^[1] ; Pires Rosa, Paulo Cesar ^[2] ; Carlos da Silva, Meuris Gurgel ^[1] ; Adeodato Vieira, Melissa Gurgel ^[1]

Afiliação do(s) autor(es)

^[1] Univ Campinas UNICAMP, Sch Chem Engn, Dept Proc & Prod Design, Albert Einstein Ave 500, BR-13083852 Campinas, SP - Brazil

^[2] Univ Campinas UNICAMP, Sch Med Sci, Dept Pharmacol, Tessalia Vieira de Camargo St, BR-13083887 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ADVANCED POWDER TECHNOLOGY; v. 30, n. 8, p. 1531-1543, AUG 2019.
• Citações Web of Science: 2

Resumo

Sericin and alginate blend has shown good results for obtaining sustained release dosage forms. In the case of ketoprofen, it was necessary to resort to the use of the proanthocyanidin (PA) as crosslinking agent in order to achieve this same goal. Thus, various formulations were developed by adding different initial amounts of PA to the sericin and alginate blend with incorporated ketoprofen. The best results for drug loading, entrapment efficiency and release prolongation were obtained for the particle with the lowest amount of PA (0.5%). Mathematical modeling has indicated that different mechanisms may be involved in drug release, especially a complex release mechanism, with polymer dissolution and polymer chain relaxation allowing drug release. Particles characterization confirmed the incorporation of ketoprofen into the sericin, alginate and proanthocyanidin blend. It was verified that there was no interaction between them and there were no major changes in the physicochemical properties of the drug. (C) 2019 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved. (AU)

• Processo FAPESP: 15/13505-9 - Incorporação e liberação de fármacos em micropartículas de sericina e alginato
• Beneficiário: Melissa Gurgel Adeodato Vieira
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 16/05007-1 - Remoção de fármacos residuais em solução aquosa por adsorventes alternativos
• Beneficiário: Meuris Gurgel Carlos da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Regular