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Functionalization of PVDF membranes with carbohydrate derivates for the controlled delivery of chlorhexidin

机译:含碳水化合物衍生物的PVDF膜功能化,可控制氯己定的递送

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Maltodextrin (MX) was fixed onto PVDF membranes in order to create a drug delivery Guided Tissue Regeneration (GTR) device with controlled drug delivery properties. PVDF microporous membranes were treated by a mixture of MX and citric acid, resulting to an 18 wt% increase of the supports. MX grafted membrane could capture 103 mg/g chlorhexidin digluconate (DigCHX) instead of I mg/g for a virgin membrane. A neutralization step was performed before the biological tests. Viability tests confirmed the non-toxicity of the MX polymer coating after neutralisation. In vitro release test in human plasma, and microbiological tests showed that membranes grafted with MX were more performing compared to virgin and P-CD grafted membranes. The antimicrobial activity was effective during more than 72 h. (C) 2007 Elsevier B.V. All rights reserved.
机译:麦芽糊精(MX)固定在PVDF膜上,以创建具有受控药物输送特性的药物输送引导组织再生(GTR)装置。用MX和柠檬酸的混合物处理PVDF微孔膜,使载体增加18 wt%。 MX接枝膜可以捕获103 mg / g氯己定二葡萄糖酸酯(DigCHX),而不是原始膜的I mg / g。在生物学测试之前进行中和步骤。可行性测试证实,中和后MX聚合物涂层无毒。在人血浆中进行的体外释放测试和微生物学测试表明,与原始和P-CD膜相比,MX膜的性能更高。抗菌活性在超过72小时内有效。 (C)2007 Elsevier B.V.保留所有权利。

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