近红外光开启探头用于选择性检测水中化物和活细胞成像中的低化物
Anwesha Maiti1, Saikat Kumar Manna2, Satyajit Halder3
1Molecular Sensor and Supramolecular Chemistry Laboratory, Department of Chemistry, Indian Institute of Engineering Science and Technology, Howrah, Shibpur, West Bengal 711103, India.
Chemical research in toxicology
|September 17, 2024
概括
一个新的光探测器,BPH,可以通过近红外光进行敏感和选择性的化物 (ClO-) 检测. 这一进展对于监测低化物水平和通过预防毒性来确保人类安全至关重要.
科学领域:
- 分析化学 分析化学
- 生物医学科学 生物医学科学
- 化学生物学 化学生物学
背景情况:
- 低化物 (ClO-) 是一种参与生理和病理过程的活性氧物种 (ROS).
- 过量的低化物可能是有毒的,需要精确的检测方法,以确保人类的安全.
研究的目的:
- 开发一种新的近红外 (NIR) 光"启动"探针,用于选择性和快速的低化物检测.
- 建立一种敏感的方法来量化生物样本中的低化物.
主要方法:
- 一个基于化的光探针的合成,BPH.
- 通过邻近二醇氧化和光诱导电子转移 (PET) 抑制对低酸盐的探针反应的研究.
- 检测极限的确定和在活细胞成像中的应用.
主要成果:
- 在与低化物反应时,BPH探针表现出强烈的NIR光"启动"反应.
- 探测器在低化物检测方面表现出高的选择性.
- 实现了2.39 × 10−10 M (0.23 nM) 的低检测极限.
- BPH成功地用于检测MDA-MB 231细胞中的外源性和内源性低化物.
结论:
- BPH探头提供了一种敏感,选择性和快速的低化物检测方法.
- 这种探测器对于监测生物系统中的低酸盐非常有价值,有助于了解其在健康和疾病中的作用.
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