精密设计的银单原子碳点纳米酶,用于治疗急性损伤
Tianle Tang1, Jun Zhang1, Yan Wang2
1NHC Key Laboratory of Tropical Disease Control, School of Life Sciences and Medical Technology, Hainan Medical University, Haikou, Hainan, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|January 15, 2026
概括
带有单原子银 (T-AgSA-CDs) 的基功能化碳点为急性损伤 (AKI) 提供强大的抗氧化剂和生物成像能力. 这些纳米酶有效地清除反应性氧物种 (ROS) 并监测的修复.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 脏生理学 脏生理学
背景情况:
- 反应性氧物种 (ROS) 的过度生产是急性损伤 (AKI) 病原发生的一个关键因素.
- 目前针对AKI的抗氧化疗法面临局限性,需要新的方法.
- 迫切需要AKI的有效实时监测和治疗策略.
研究的目的:
- 开发和描述由单原子银 (T-AgSA-CDs) 支持的三功能化碳点作为AKI的治疗剂.
- 评估T-AgSA-CDs的ROS清除效率和抗氧化特性.
- 在临床前AKI模型中评估T-AgSA-CDs的体内疗效和生物成像能力.
主要方法:
- 合成和表征T-AgSA-CDs,将单原子银集成到碳点矩阵上.
- 评估T-AgSA-CDs的超氧化脱氧化酶 (SOD) 和谷氨过氧化酶 (GPx) 类活动.
- 密度函数理论 (DFT) 计算以阐明催化机制.
- 在体内研究使用西斯胺诱导的AKI小鼠模型来评估通过光成像的治疗疗效和生物分布.
主要成果:
- 与传统纳米酶相比,T-AgSA-CDs表现出优异的SOD和GPx模拟活性,有效中和ROS.
- DFT的计算揭示了双 SOD 和 GPx 模拟活动的共同低能耗路径.
- 三基功能化使线粒体向的输送成为可能,增强了AKI小鼠的抗氧化剂保护和治疗结果.
- T-AgSA-CDs表现出内在光,用于对生物分布和积的非侵入性监测,以促进AKI评估和恢复跟踪.
结论:
- 对于AKI来说,T-AgSA-CDs是一个有前途的超神论平台,它将高效的ROS清理与实时生物成像相结合.
- 银和添加碳点之间的协同作用增强了催化活性和生物相容性.
- 线粒体向传递和光监测为AKI治疗和评估提供了一种新的策略,具有临床翻译的潜力.
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