Fluorescence Imaging of Mitochondria with Three Different Sets of Signals Based on Fluorene Cation Fluorescent Probe.

Herein, we develop a novel mitochondria-targetable fluorescence probe (FVPI) based on fluorene cation derivative. This mitochondria-targetable fluorescence probe exhibits large Stokes shift in various solutions. In addition, FVPI displays numerous advantages, including high photostability, low cytotoxicity, and two-photon properties. View of the above features, FVPI is successfully capable of imaging mitochondria in biological systems with three different sets of signals. This finding will provide a new platform for the constructing mitochondria-targetable fluorescent probes with excellent optical properties.