Influence of silver nanoparticles on the tissue reaction of polyacrylic acid-based gel
Bonete, Jéssica Mariana; Tamashiro, Jacqueline Roberta; Paiva, Fábio Friol Guedes de; Queiroz-Fernandes, Geisiany Maria de; Guidelli, Éder; Baffa, Oswaldo; Kinoshita, Angela.
Acta cir. bras;
37(5): e370504, 2022. graf, ilus
Artigo
em Inglês
| VETINDEX
| ID: biblio-1393755
Resumo
Purpose: To study the influence of silver nanoparticles (AgNP) on tissue reaction when incorporated into a polymeric matrix of polyacrylic acid-based (Carbopol®) gel as a proposal for a new low-cost type of biomaterial that is simple to manufacture for use as an antimicrobial and antioxidative dressing. Methods: In-vivo tests of implantation in the subcutaneous tissue of the back of rats were performed using polyethylene tubes in three situations: empty, only the gel, and gel incorporated with AgNP. Then, the tissue reaction was studied by counting inflammatory cells. Additionally, in-vitro tests of the antioxidative and antimicrobial activity of AgNP were performed. The radical 2,2 diphenyl-1 picrylhydrazyl (DPPH) was used to test the antioxidative activity of AgNP using electron spin resonance. The antimicrobial activity of AgNP was determined by minimum inhibitory concentration against the microorganisms: Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli. Results: The results indicated that AgNP presents antioxidative activity and was able to inhibit the growth of the microorganisms tested. The addition of AgNP in Carbopol® did not alter the tissue inflammatory response (p>0.05, Kruskal-Wallis's test). Conclusions: The new biomaterial is promising for future use as a dressing for its beneficial properties for regenerative processes
Biblioteca responsável:
BR68.1
Localização: BR68.1
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