A ratiometric fluorescent sensor with a large Stokes shift for imaging zinc ions in living cells†
Abstract
The ratiometric fluorescent sensor FQ1 based on furoquinoline has been designed and synthesized, and not only exhibits a large Stokes shift of 199 nm in a mixture of C2H5OH–H2O (v/v = 8 : 2, 10 mM Tris-HCl, pH = 7.3), but can selectively detect