4.6 Article

A novel highly sensitive fluorescent probe for imaging endogenous CO

期刊

NEW JOURNAL OF CHEMISTRY
卷 46, 期 48, 页码 23096-23101

出版社

ROYAL SOC CHEMISTRY
DOI: 10.1039/d2nj04920a

关键词

-

资金

  1. NSFC [22176070, 21777053]
  2. A Project of Shandong Province Higher Educational Youth Innovation Science and Technology Program [2019KJD005]

向作者/读者索取更多资源

In this study, the issues of sensitivity, selectivity, and water solubility of CO fluorescent probes were investigated. A probe named HS-CO was designed to greatly increase the rigid plane of the probe through intramolecular cyclization, resulting in high sensitivity for CO detection. The probe was successfully used to detect CO in HeLa cells and zebrafish, demonstrating its great potential as a tool for functional analysis of CO in organisms.
As an important gaseous signal molecule, carbon monoxide (CO) plays a major role in multiple physiological and pathological processes. Therefore, it is significantly meaningful to develop fluorescent probes with features such as in situ imaging to detect CO in biological samples. However, the reported CO fluorescent probes still suffer from low sensitivity, poor selectivity, and low water solubility. In particular, due to the very low concentration of CO in organisms, these probes must have high sensitivity to achieve the detection of CO. To address this problem, we constructed a CO fluorescence probe (HS-CO) with a reasonable design, which can greatly increase the rigid plane of the probe through spontaneous intramolecular cyclization after the reaction with CO. The substantial increase in the fluorescence quantum yield after the reaction enabled it to achieve a strong change in the fluorescence signal and exhibit high sensitivity for detecting CO (LOD = 4.5 nM). Importantly, probe HS-CO was successfully used to detect endogenous and exogenous CO in HeLa cells. In addition, probe HS-CO successfully detected CO in zebrafish. These results together identified the great potential of the probe as a tool for functional analysis of CO in organisms.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据