在基于血红蛋白的加多单原子催化剂中,对适应性生物传感的构造关双酶活性
Yifan Xing1, Lexian Wu1, Yiting Xu1
1School of Chemistry and Chemical Engineering, Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Hunan University of Science and Technology, Xiangtan, 411201, China.
Talanta
|January 21, 2026
概括
我们开发了一种灵活的基于血红蛋白的加多单原子催化剂 (Hb-Gd SAC),可以在两个酶模式之间切换,以实现先进的生物传感. 这种可适应的催化剂对神经退行性疾病诊断有前途.
科学领域:
- 生物模拟化学 生物模拟化学
- 催化剂是一种催化剂.
- 纳米技术纳米技术
背景情况:
- 单原子催化剂 (SAC) 提供高效率,但缺乏在生物环境中的适应性.
- 蛋白质支架可以为原子催化剂提供动态环境.
研究的目的:
- 使用血红蛋白和加多,创建一个可重新配置的单原子催化剂.
- 为了实现生物传感应用的pH和构型式双模式催化.
主要方法:
- 加多 (Gd) 原子对血红蛋白的特定位置定.
- 调查过氧化酶类 (POD类) 和乳酶类活动之间的pH依赖切换.
- 使用酸进行全精调节和性能提升.
主要成果:
- 基于血红蛋白的加多单原子催化剂 (Hb-Gd SAC) 显示了可调节的双模式酶活性.
- 在酸性条件下观察到类似POD的活性,而在中性pH下观察到类似laccase的活性.
- 获得了增强的催化性能和神经退行性疾病生物标志物的选择性检测.
结论:
- 开发了一个新的,可重新配置的SAC平台,将原子精度与生物分子动力学融合在一起.
- 这种Hb-Gd SAC系统可实现可编程生物传感,用于多式联络诊断,特别是帕金森病.
- 这些发现推动了智能催化和自适应生物传感技术的发展.
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