Fig. 6
Dependence of complexing and decomplexing kinetics on the applied electric field strength using BCGE. Conditions: same as in Fig. 3, except E. a Background-subtracted space–time plots of band collisions between MG( + 2e) and BPB(−2e) at field strengths E (V cm−1) of 3.1 (black text, left); 6.2 (red text, middle); and 9.4 (blue text, right). The range of times shown for 6.2 and 9.4 V cm−1 have been reduced by factors of 2× and 3×, respectively, yielding similar X-patterns to that shown for 3.1 V cm−1. b Intensity profiles showing decomplexing kinetics, extracted from part a using the green color channel intensity Igreen taken across d = 0 mm, where the stationary product band appears, as a function of time t for different E (points color coded as in part a); lines are fits of long-time data using Fermi-like functions (see Supplementary Table 2). Inset: time constant τc(E) obtained from the fit decreases as a function of E. c, d Same as parts a and b, but instead for dyes MB(+e) and BB(−2e). In part d, Igreen(t) are fit using a modified log-normal function describing the optical absorption of the stationary band at d = 0 (lines, see Supplementary Table 3). The x-direction points downward in parts a and c. Inset: τd from the fits decreases for larger E. Source data are provided as a Source Data file
