Silk fibroin protein-based nonwoven mats incorporating baicalein Chinese herbal extract: preparation, characterizations, and in vivo evaluation

Journal of Biomedical Materials Research. Part B, Applied Biomaterials
Wing P ChanMeng-Yi Bai


In this study, we demonstrated a natural silk fibroin protein (SFP) that was blended with a Chinese herbal extract (baicalein, BAI) to obtain an effective combination for producing electrospun nonwoven mats with anti-inflammatory and antibacterial functions. A series of SFP-based electrospun nonwoven mats with additives of varying compositions were produced and investigated. Performance comparisons showed that the SFP/polyvinylpyrrolidone (PVP)/BAI nonwoven mat is the optimal one. In vitro, SFP/PVP/BAI nonwoven mat is effective in inhibiting the formation of nitrite in lipopolysaccharide (LPS)-induced nitrite formation in Raw 264.7 macrophages model and the growth of Staphylococcus aureus (S. aureus). Especially in the case of SFP/PVP/BAI nonwoven mat, Bai has been proved to reach their maximum amount of releases of approximately 64.8% within 24 h of contact with water-based environment as compared to the SFP/BAI nonwoven mat (only 30.1% of release within 24 h). For in vivo experiments, a 1.2 cm × 1.2 cm wound area was created on the back of mice and seeded with 1 × 107 CFU/mL of S. aureus to induce an infected wound model. The experimental results show significant acceleration of the wound closure process in mice treated with ...Continue Reading


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