含依諾沙星微球的改性明膠膜的制備及體外釋藥性研究
[Abstract]:Objective To prepare modified gelatin film containing enoxacin microballoon and to study its drug release in vitro. The method comprises the following steps of: preparing the enoxacin gelatin microspheres by an emulsion crosslinking method, and dispersing the drug-loaded microspheres into the modified gelatin film after the optimal preparation process of the microspheres by using the particle size, the drug loading and the encapsulation rate of the microspheres; The release of the conventional drug-loaded film in the pH 7.4 phosphate buffer was compared. The results showed that the enoxacin microballoon prepared by the optimal process has the advantages of round appearance, uniform distribution, average particle size of (3.04-0.25) & mu; m, particle size distribution of 80% of the microspheres in the range of 1-6 & mu; m, average drug loading of the microspheres (11.8-1.02)%, and average encapsulation rate (78.24-3.18)%, The cumulative release of enoxacin in the drug-loaded microballoon membrane and the common drug membrane is about 80%, which is 96 h and 8 h. Conclusion The preparation process of enoxacin microsphere is stable and feasible. The release of drug-loaded microsphere modified gelatin film in vitro is slow, and it is expected to be developed as a traumatic dressing with long-acting antibacterial effect.
【作者單位】: 福建醫(yī)科大學(xué)藥學(xué)院實(shí)驗(yàn)中心;福建醫(yī)科大學(xué)藥學(xué)院藥物化學(xué)系;
【基金】:福建省教育廳科技A類項(xiàng)目(JA13148)
【分類號】:R943
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