Fig. 4: Mechanism studies of the water-bridging-boosted reaction kinetics for NE detection.
From: Two-photon fluorescence imaging and specifically biosensing of norepinephrine on a 100-ms timescale
a Normalized fluorescence response dynamics (recorded at 480 nm, excited at 720 nm) of 5 μM BPS3 solution in different solvents with addition of 100 nM NE. b The pathway and possible transition states of the reactions between the stretched probe BPS3 and NE, with or without the involvement of H2O. c Calculated relative energies of the compounds and possible transition states during the reactions between the probe BPS3 and NE in different pathways.
