The present research was undertaken to develop a chitosan-collagen film for controlled delivery of combinations of local anesthetics. The film has been prepared by casting which is a versatile, rapid and low-cost approach distinguished by high reproducibility. The mechanical, morphological, and physicochemical properties of the films and the impact of the drug loading were evaluated. We showed that the formulations have a good combination of strength and flexibility with high water permeability. Surface morphology investigation indicates a variation in roughness depending on the loaded compound. Release studies were performed in controlled environments and the data processed by the Higuchi model to assess the dynamics of the release. The local anesthetics, lidocaine, tetracaine, and benzocaine, were uniformly distributed within the matrix and released in a rate and magnitude specific for the drug concentration and combination tunable in a range time from 6 h to 24 h. The films dissolve completely in the physiological environment within 24 h without leaving any toxic metabolites as both of the components are recognized as safe. In vitro cytotoxicity and cell proliferation tests performed on human dermal fibroblast demonstrate the biocompatibility and lack of cytotoxicity of the prepared formulations.

• MeSH
• anestetika lokální aplikace a dávkování   MeSH
• benzokain aplikace a dávkování   MeSH
• buněčná smrt účinky léků   MeSH
• chitosan chemie   MeSH
• difuze MeSH
• fibroblasty cytologie   účinky léků   MeSH
• kinetika MeSH
• kolagen chemie   MeSH
• koncentrace vodíkových iontů MeSH
• lékové transportní systémy * MeSH
• léky s prodlouženým účinkem aplikace a dávkování   MeSH
• lidé MeSH
• lidokain aplikace a dávkování   MeSH
• molekulová hmotnost MeSH
• pára MeSH
• permeabilita MeSH
• povrchové vlastnosti MeSH
• proliferace buněk účinky léků   MeSH
• skot MeSH
• tetrakain aplikace a dávkování   MeSH
• uvolňování léčiv MeSH
• viabilita buněk účinky léků   MeSH
• zvířata MeSH
• Check Tag
• lidé MeSH
• skot MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH