Highly selective chemosensor for the detection of Ru3+ ion by fluorescent turn-on response and its bioimaging recognition in living cells

Functionalized phenanthridine based probe has been rationally designed and synthesized. H-1 & (NMR)-N-13, Xray photoelectron spectra and HRMS were conducted to characterize and prove its structure. The probe exhibited fluorogenic selectivity to detection of Ru3+ among the metal ions tested. The probe showed linear fluorescence increase over the introduction of Ru3+. The fluorescence increase attributed to the complex formation between probe 2 and Ru3+. Job plot experiments showed that there was 1:1 complex formation between receptor 2 and Ru3+. Further the recognition of Ru3+ ion in the living cell was achieved using fluoresce microscope. (C) 2018 Elsevier B.V. All rights reserved.