皇冠-以太线索共价有机聚甲框架 (COPF) 向协同的皇冠/Zn2+/光热/光动力抗菌和感染伤口愈合疗法
Shaoyu Wang1, Jing Zhang2, Lichao Chu2
1School of Pharmacy, Shandong Second Medical University, Weifang, Shandong 261053, PR China.
Biomaterials advances
|February 28, 2024
概括
研究人员开发了一种新型的皇冠线共价有机框架 (COF) 用于光热和光动力抗菌疗法. 这种用离子增强的材料有效地杀死细菌,并在体内促进伤口愈合.
科学领域:
- 聚合物材料科学 聚合物材料科学
- 超分子化学 超分子化学
- 纳米医学是一种纳米医学.
背景情况:
- 新材料结构的可控合成在聚合物科学中至关重要.
- 超分子结合策略为设计先进的功能材料提供了一条途径.
- 共价有机框架 (COF) 是具有可调节性质的有希望的多孔材料.
研究的目的:
- 开发一种新的二维皇冠-以太线索共价有机框架 (Crown-COPF).
- 研究Crown-COPF.COPF的光热 (PTT) 和光动力学 (PDT) 治疗能力.
- 探索Crown-COPF作为分子机器和抗菌剂的潜力.
主要方法:
- 简单的合成皇冠-COPF使用皇冠-以太线索的罗他森和氨酸构建块.
- 皇冠-COPF结构和属性的特征,包括其机械互锁性质.
- 对抗革兰氏阴性 (大肠杆菌) 和革兰氏阳性 (金黄色杆菌) 细菌的抗菌活性评估.
- 通过用Zn2+离子 (Crown-COPF-Zn) 浸增强抗菌功效.
- 在小鼠体内研究,以评估促进伤口愈合.
主要成果:
- 成功合成了Crown-COPF与离散的机械互锁块,作为一个分子机器.
- 皇冠COPF表现出显著的光热和光动力学抗菌活性,优于没有皇冠的COF.
- 由于正电荷增加和离子毒性,Crown-COPF-Zn表现出增强的抗菌性能.
- 在体内实验表明,Crown-COPF-Zn有效地促进感染小鼠的伤口修复.
结论:
- 皇冠-COPF代表了一种具有内在PTT和PDT治疗能力的新型多孔聚合物.
- 机械互锁的结构使分子机器功能成为可能.
- 加入Zn2+离子显著提高了抗菌效果和伤口愈合特性.
- 这项研究为准备用于生物医学应用的先进多孔聚合物提供了新的策略.
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