Fig. 7.

Relative pH buffering capacity of the SR-2P gel with increasing volume of 1 ml (a), 2 ml (b), 3 ml (c), 4 ml (d), and 8 ml (e) exposed to VFS (1 ml) or VFS + SFS (4.5 ml) mixture at 37°C under shear of 70 rpm at 2 and 24 h time points. a VFS; b SFS. Error bars represent average values with ±SD (n = 3)