Fig. 4

Maximizing trapping by varying matrix thickness and anchor concentration. Heat maps of the a effective diffusivity and b, c probability of penetration of a gel layer within 2 h as a function of different fraction of free anchors (a, b) and thickness of matrix layer (c). Parameter values used were as follows: a D A/D P = 20 and N = 20; b D A/D P = 20, N = 20, and L = 50 μm; and c D A/D P = 20, N = 20, and \(\varphi = 0.7\)