血作为在生理溶液中检测氧化的分子探针:实验和理论评估
Amir M Alsharabasy1, Pau Farràs1,2, Abhay Pandit1
1CÚRAM, SFI Research Centre for Medical Devices, University of Galway, Galway, Ireland H91 W2TY.
Analytical chemistry
|May 3, 2024
概括
这项研究引入了一种新的化学发光方法,使用黑/H2O2/光来精确检测溶液中的氧化 (NO). 该方法提供了一种敏感和选择性的方法,用于在各种生物样本中量化NO.
科学领域:
- 分析化学 分析化学
- 生物化学 生物化学
- 化学生物学 化学生物学
背景情况:
- 精确测量氧化 (NO) 对于理解病理过程至关重要.
- 现有的NO检测技术,如以臭氧为基础的化学发光,强度计传感和格里斯测定有局限性.
- 在复杂的生物矩阵中存在敏感和选择性的NO检测方法的需求.
研究的目的:
- 开发和验证一个黑/H2O2/光化学发光 (CL) 反应,用于在各种溶液中准确检测NO.
- 调查NO捐赠体,培养基组件和反应性物种火器对光发动性的影响.
- 阐明半膜氧化在启动NO感应光生成过程中的机制.
主要方法:
- 为了检测NO,采用了黑/H2O2/光CL反应系统.
- 研究光动力学受酸盐和过氧酸盐的NO影响.
- 评估了培养基组件和反应性物种火器的影响.
- 在实验和理论上探索了半膜氧化的机制.
- 与电压计NO检测结果进行比较.
主要成果:
- 半膜和NO都增强了H2O2/光的发光,具有不同的动力学.
- 黑的干扰调节了NO和过氧酸盐的作用.
- 通过利用由于 hemin. 传播的信号来准确估计NO水平.
- 与电压计检测相比,观察到NO水平的并行变化.
- 通过结合反应性物种火器,证明了更好的选择性.
结论:
- 黑/H2O2/光CL反应提供了一种敏感的方法,用于在溶液中检测NO.
- 了解相互作用机制有助于优化NO感应策略.
- 该方法适用于在各种溶液中检测NO,采样要求最小.
- 结合火器可以提高复杂样品中NO检测的选择性.
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