基于聚乙烯糖醇/普卢兰的载体用于西利玛林的输送及其在生物医学应用中的潜力
Julia Iwaniec1, Karina Niziołek2, Patryk Polanowski1
1Cracow University of Technology, Faculty of Materials Engineering and Physics, Department of Materials Science, 37 Jana Pawła II Av., 31-864 Krakow, Poland.
International journal of molecular sciences
|September 28, 2024
概括
这项研究开发了一种新的生物材料从pullulan和silymarin用于再生医学. 交联材料显示出良好的生物相容性和持续释放的西利马林,显示出药物输送应用的潜力.
科学领域:
- 生物材料科学 生物材料科学
- 再生医学是一种再生医学.
- 材料工程 材料工程 材料工程
背景情况:
- 再生医学旨在恢复组织和器官的功能.
- 水凝生物材料对于药物输送系统至关重要.
- 生物相容药物载体需要创新的材料.
研究的目的:
- 准备和描述一种新的天然聚合物生物材料.
- 评估其生物相容性和药物释放特性.
- 评估其在再生医学应用中的潜力.
主要方法:
- 用紫外线光交联的普鲁兰-西利马林矩阵的制备.
- 使用富里埃变换红外光谱法 (FT-IR) 进行纯度评估.
- 在模拟体液 (SBF),林格溶液和人工唾液中进行了19天的化试验.
- 分析pH值,导电性,重量变化和吸附能力.
- 通过光学显微镜进行表面形态分析.
- 使用Folin-Ciocâlteu试验测定西利马林释放和抗氧化能力.
主要成果:
- 普鲁兰-西利马林矩阵已经成功准备和表征.
- 在SBF中化显示稳定的pH (7.6-7.8).
- 在林格溶液,人工唾液 (~350%),SBF (~300%) 中观察到高吸附能力.
- 这种材料表现出持续释放的氨酸,具有确定的抗氧化能力.
- 化分析证实该物质是活性且无害的.
结论:
- 开发的pullulan-silymarin生物材料显示出再生医学的有前途潜力.
- 它的生物相容性和持续的活性成分释放增加了它的生物价值.
- 需要进一步的研究来进行全面的评估,但初步结果令人鼓舞.
相关概念视频
Bioavailability Enhancement: Drug Permeability Enhancement
After oral administration, poor permeability often limits the rate at which drugs are absorbed through the intestinal epithelium. Enhancing drug permeability is crucial for effective therapy, and several strategies have been developed to overcome this challenge.One effective strategy involves the use of lipid-based formulations. These formulations enhance dissolution and solubility, targeting physiological mechanisms to increase drug absorption. This includes stimulating bile salt secretion,...
Bioavailability Enhancement: Drug Stability Enhancement and GI Retention
Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
Site-Targeted Drug Delivery Systems: Polymeric Carriers
Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...


