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Development and characterization of gelatin-polysaccharide based phase-separated hydrogels for prevention of sexually transmitted diseases

机译:基于明胶-多糖的相分离水凝胶的开发和表征,用于预防性传播疾病

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Bacterial vaginosis is a sexually transmitted vaginal infection prevalent in sexually active women. Gelatin-polysaccharide phase-separated hydrogels were prepared and characterized as vaginal delivery systems for the treatment of bacterial vaginosis. Sodium carboxymethyl cellulose, maltodextrin, and dextran were used as the representative polysaccharides. The developed gels were characterized by impedance spectrometer, X-ray diffraction (XRD) studies, and differential scanning calorimetry. The mucoadhesivity, water absorption, and hemocompatibility of the gels were also studied. The gels were electrically conductive in nature and showed a concentration-dependent behavior. XRD study suggested the amorphous nature of the hydrogels. An increase in the polysaccharide content increased the water holding capacity of the gels. The gels were found to possess mucoadhesive property and were hemocompatible. Metronidazole, a commonly used drug for treating bacterial vaginosis, loaded gels showed diffusion-mediated drug release. The drug-loaded hydrogels showed good antimicrobial activity. In gist, the developed hydrogels may be tried as matrices for vaginal delivery of antimicrobials. (C) 2014 Wiley Periodicals, Inc.
机译:细菌性阴道病是性活跃的女性中普遍发生的性传播阴道感染。制备明胶-多糖相分离的水凝胶,并将其表征为用于治疗细菌性阴道病的阴道递送系统。羧甲基纤维素钠,麦芽糊精和葡聚糖用作代表性的多糖。通过阻抗谱仪,X射线衍射(XRD)研究和差示扫描量热法对开发的凝胶进行表征。还研究了凝胶的粘膜粘附性,吸水率和血液相容性。凝胶本质上是导电的,并表现出浓度依赖性的行为。 XRD研究表明水凝胶的无定形性质。多糖含量的增加增加了凝胶的持水能力。发现该凝胶具有粘膜粘附特性​​并且具有血液相容性。甲硝唑是治疗细菌性阴道病的常用药物,载有凝胶的药物显示出扩散介导的药物释放。载有药物的水凝胶显示出良好的抗菌活性。在本质上,可以尝试将开发的水凝胶用作阴道抗菌剂的基质。 (C)2014威利期刊公司

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