6-Substituted quinoline-based ratiometric two-photon fluorescent probes for biological Zn2+ detection
作者:Xiangming Meng、Shuxin Wang、Yiming Li、Manzhou Zhu、Qingxiang Guo
DOI:10.1039/c2cc30471f
日期:——
New ratiometric two-photon fluorescent probes are developed from 6-substituted quinolines for biological Zn2+ detection. They show large red shifts and good ratiometric responses upon Zn2+ binding. They also exhibit high ion selectivities and large two-photon absorption cross sections at nearly 720 nm. Because the new probes are cell-permeable, they can be used to detect intracellular zinc flux under two-photon excitation.
由 6-取代喹啉开发出新型比率双光子荧光探针,用于生物 Zn2+ 检测。它们在 Zn2+ 结合时表现出大的红移和良好的比率响应。它们还表现出高离子选择性和近 720 nm 处的大双光子吸收截面。由于新探针具有细胞渗透性,因此可用于检测双光子激发下的细胞内锌通量。