具有抑制自氧化和稳定的抗氧化活性的甲二甲基聚合物:结构修饰和结合热力学
Wenqi Zhao1, Meihuan Yao1, Mengdi Zhang1
1Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China.
The journal of physical chemistry. B
|March 4, 2026
概括
这项研究开发了catechin-diarylboronate (DiarylBA) 以提高稳定性和抗氧化活性. 这些新型载体通过防止氧化,同时保持ROS清理能力,提高了医疗保健中甲基素 (EC) 的利用率.
科学领域:
- 生物化学 生物化学
- 材料科学 材料科学 材料科学
- 药用化学 医学化学
背景情况:
- katekins 显示出有价值的抗氧化剂和反应性氧物种 (ROS) 清理特性,这对医疗保健至关重要.
- 提高对自氧化物的 katechin 稳定性对于其有效的治疗应用至关重要.
- 酸修饰提供了一种增强儿茶素稳定性和受控释放的策略.
研究的目的:
- 开发一种新型的素-二甲基酸 (DiarylBA) 自组装载体.
- 为了评估这些修饰的 катехин的稳定性,抗氧化活性和ROS清除功效.
- 为了研究结合热力学,相互作用机制和开发的的聚合行为.
主要方法:
- 通过 (-) - epicatechin (EC) 和不同的酸受体 (BTEAB,PyBBA,PyPBA) 合成三种甲基素-二甲基酸 (DiarylBA) .
- 使用光谱仪 (UV-vis,NMR),ROS扫描试验,异热定位热量计 (ITC) 和光散射进行表征.
- 在pH范围 (6.5-8.5) 中评估自身氧化抑制和抗氧化活性.
主要成果:
- 用DiarylBA对EC的化有效地抑制了自氧化,即使在pH值为8.5,同时保持了抗氧化活性.
- 在pH范围从6.5到8.5的范围内成功生成EC-DiarylBA.
- EC-BTEAB显示了直接的H2O2反应,而EC-PyBBA和EC-PyPBA需要EC释放才能消除H2O2.
结论:
- катехин-diarylboronate (DiarylBA) 是一种增强 катехин稳定性和生物活性的有希望的策略.
- 这些经过修饰的甲基素为医药和医疗保健应用提供了更好的潜力.
- 开发的载体表现出可调节的特性,用于有针对性的ROS清理和治疗输送.
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