Fluorescent chemodosimeter for Cys/Hcy with a large absorption shift and imaging in living cells
作者:Mingming Hu、Jiangli Fan、Honglin Li、Kedong Song、Song Wang、Guanghui Cheng、Xiaojun Peng
DOI:10.1039/c0ob00957a
日期:——
A novel molecule T1 with efficient intramolecular charge transfer was designed as a fluorescent chemodosimeter for cysteine (Cys) and homocysteine (Hcy). Upon addition of Cys/Hcy, T1 exhibited greatly enhanced fluorescence intensity as well as a large absorption peak shift (70 nm), and can be used for bioimaging of Cys/Hcy in living cells and detection in human plasma by visual color change. The detection mechanism was proved by 1H NMR, mass spectrometry analysis and Gaussian calculations.
一种具有高效分子内电荷转移的新型分子T1被设计为一种用于检测半胱氨酸(Cys)和同型半胱氨酸(Hcy)的荧光化学传感器。加入Cys/Hcy后,T1表现出显著增强的荧光强度以及大的吸收峰位移(70 nm),并可用于活细胞中Cys/Hcy的生物成像以及通过颜色变化在人体血浆中检测。检测机制通过1H NMR、质谱分析和Gaussian计算证明。