212818.fig.003a
(a)
212818.fig.003b
(b)
212818.fig.003c
(c)
212818.fig.003d
(d)
Figure 3: The profile of the normalized concentration of catechol substrate versus the normalized distance . The concentrations were computed using (12) when the parameters , , and for various values of and . The key to the graph (stacked line) represents (12) and (dotted line) represents the numerical solution. (a) , (b) , (c) , (d) .