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Teicoplanin-loaded chitosan-PEO nanofibers for local antibiotic delivery and wound healing.

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Antibiotic-loaded nano-delivery systems offer an advanced approach to overcome several limitations associated with antibiotic therapy. Antibiotic-loaded nanofibers can be applied topically for skin and wound healing, post operation implants for… Click to show full abstract

Antibiotic-loaded nano-delivery systems offer an advanced approach to overcome several limitations associated with antibiotic therapy. Antibiotic-loaded nanofibers can be applied topically for skin and wound healing, post operation implants for the prevention of abdominal adhesion, and prophylaxis and treatment of infections in orthopedic surgery. Here, the authors report the development of local antibiotic delivery system using chitosan- polyethylene oxide (PEO) nanofibers for delivery of teicoplanin. Successful electrospinning of chitosan-PEO solution containing 2 and 4 w/v% teicoplanin resulted in uniform and bead-less nanofibers. Nanofibers were able to release teicoplanin up to 12 days. Antibacterial test in agar diffusion and time-kill study on Staphylococcus aureus also demonstrate that loading teicoplanin in chitosan-PEO nanofibers not only kept the antibacterial activity of antibiotic but also, enhanced it up to 1.5 to 2 fold. Teicoplanin loaded nanofibers did not show any cytotoxicity to human fibroblast. Moreover, in vivo study on rat full thickness wound model confirmed safety and efficacy of applying teicoplanin loaded nanofibers and significant improve in wound closure was observed especially with nanofibers containing 4% teicoplanin. The sustained release profile, enhanced drug activity, cytocompatibility, and significant wound healing activity affirm the potential applications of teicoplanin-loaded nanofibers in wound healing and local antibiotic delivery.

Keywords: wound healing; local antibiotic; delivery; teicoplanin loaded; antibiotic delivery; teicoplanin

Journal Title: International journal of biological macromolecules
Year Published: 2020

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