Table 1.

Constants used in simulations.

Constant	Biocytin-Alexafluor488	IL-6
ε	0.36a
ρ (kg m-3)	998.2b
μ (kg m-1 s-1)	0.001003b
Dp (μm)	5.8c	6.5c
Γmax (mol m-3)	0.0889c	0.013857c
kon (M-1 s-1)	107 d	106 e
koff (s-1)	10-5 d	10-3 e
D (m2 s-1)	7.292 × 10-11 f	2.206 × 10-11 f

^a(Dullien 1991),

^b(Haynes et al. 2012),

^cAs per manufacturer specifications,

^d(Piran and Riordan 1990),

^e(Zimmermann et al. 2005),

^f(He and Niemeyer 2003)