A Self-Quenching System Based on Bis-Naphthalimide: A Dual Two-Photon-Channel GSH Fluorescent Probe
作者:Wei Shen、Jingyan Ge、Siyang He、Ruoyu Zhang、Chengyan Zhao、Yong Fan、Shian Yu、Bin Liu、Qing Zhu
DOI:10.1002/asia.201700340
日期:2017.7.4
owing to aggregation‐caused quenching (ACQ). A dual two‐photon‐channel fluorescent probe for GSH was further developed by inserting a disulfide bond between two naphthalimides. Upon treatment with GSH, the disulfide bond was cleaved, and two napthalimide fluorophores were separated, leading to turn‐on fluorescence at both channels. This dual‐two‐photon‐channel design strategy can be easily extended to
单个荧光信号输出通常不能满足生物系统中生物活性化合物的检测精度要求。开发用于自我验证检测的双通道开启荧光传感系统非常令人感兴趣。本文中,我们报道了一种由萘二甲酰亚胺的双光子双光子染料组成的自猝灭纳米颗粒,由于聚集引起的猝灭(ACQ),在两个通道上几乎都没有荧光。通过在两个萘二甲酰亚胺之间插入一个二硫键,进一步开发了用于GSH的双光子双通道荧光探针。用GSH处理后,二硫键被裂解,两个萘甲酰亚胺荧光团被分离,导致两个通道的荧光都打开。这种双双光子通道设计策略可以轻松扩展到其他分析物,