Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, PR China.
College of Physics, Hebei Normal University, Shijiazhuang 050024, PR China.
Anal Chem. 2023 Aug 1;95(30):11518-11525. doi: 10.1021/acs.analchem.3c02050. Epub 2023 Jul 18.
Novel high-performance fluorescent approaches have always significant demand for room-temperature detection of carbon monoxide (CO), which is highly toxic even at low concentration levels and is not easy to recognize due to its colorless and odorless nature. In this paper, we constructed a palladium-mediated fluorescence turn-on sensing platform () for the recognition of CO at room temperature, revealing simultaneously quick response speed (<30 s), excellent selectivity, superior sensitivity, and low detection limit (∼160 nM for CORM-3, ∼1.7 ppb for CO vapor). Moreover, rapid detection and efficient removal (24%) from the air by naked-eye vision has been successfully realized based on supramolecular gels. Furthermore, the developed sensing platform was elucidated with low cytotoxicity and high cellular uptake, and it was successfully applied to CO imaging in living cells, providing real-time monitoring of potential CO-involved reactions in biological systems.
新型高性能荧光方法一直需要在室温下检测一氧化碳 (CO)，即使在低浓度水平下，CO 也是高度有毒的，而且由于其无色无味的性质，不容易被察觉。在本文中，我们构建了一个钯介导的荧光开启传感平台（），用于室温下对 CO 的识别，同时显示出快速的响应速度（<30 s）、优异的选择性、高灵敏度和低检测限（对于 CORM-3 为 ∼160 nM，对于 CO 蒸气为 ∼1.7 ppb）。此外，基于超分子凝胶已经成功实现了对空气的快速检测和有效去除（24%）。此外，所开发的传感平台具有低细胞毒性和高细胞摄取率，并成功应用于活细胞中的 CO 成像，为生物系统中潜在的 CO 参与反应提供了实时监测。
