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碳源对细菌纤维素网络架构和长时间的利多卡因释放的影响
Julia Amorim1,2, Kuotian Liao2, Aban Mandal2
1Rede Nordeste de Biotecnologia (RENORBIO), Universidade Federal Rural de Pernambuco (UFRPE), Rua Dom Manuel de Medeiros, s/n-Dois Irmãos, Recife 52171-900, PE, Brazil.
Polymers
|November 9, 2024
概括
选择正确的碳源为细菌纤维素 (BC) 产生的Komagataeibacter hansenii影响BC属性和药物输送. 不同的碳来源影响BC产量,纤维结构和BC泡中的利多卡因释放.
科学领域:
- 生物材料科学 生物材料科学
- 微生物学 微生物学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 细菌纤维素 (BC) 生物合成受碳源的可用性影响,影响材料特性.
- 康加泰菌 (Komagataeibacter hansenii) 是一种多功能生物材料BC的关键生产者.
- 碳来源的结构和分子特征可以被利用来调整BC属性.
研究的目的:
- 调查五种不同的碳来源 (拉菲诺斯,糖糖,葡萄糖,阿拉比诺斯,糖醇) 对Komagataeibacter hansenii的BC产生的影响.
- 分析碳源选择如何影响BC产量,纤维形态和网络特征.
- 评估碳源衍生BC结构对基于BC的药物输送系统中利多卡因化持续释放的作用.
主要方法:
- 用五个不同的碳来源种植Komagataeibacter hansenii.
- 通过14天的光密度和pH值测量监测BC产量.
- 使用扫描电子显微镜 (SEM) 对形态和广角X射线散射 (WAXS) 对结晶度进行BC的表征.
- 在模拟体液中制造和评估含利多卡因的BC泡,以检测药物释放动力学.
主要成果:
- 根据使用的碳源观察到BC产量和性质的显著变化.
- SEM和WAXS分析显示了纤维的直径,孔径大小和结晶度的明显差异,受碳来源的影响.
- 装有利多卡因的BC泡在14天内表现出持续释放,释放概况取决于BC网络架构.
- 冷干燥的BC泡有效地保留了用于药物整合和控制释放的3D结构.
结论:
- 选择碳源是为特定应用量身定制细菌纤维素特性的一个关键因素.
- BC的结构特征受到其生物合成途径的影响,直接影响其在药物输送系统中的表现.
- 细菌纤维素为先进的伤口愈合和局部治疗提供了一个可调和可持续的平台.
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