Figure 1
From: Copolymers enhance selective bacterial community colonization for potential root zone applications

Mesoporous structure of swollen hydrogels. (A) Proposed free radical polymerization mechanism showing mannan attached to polyacrylic acid or K-polyacrylate (PAA) chains and further PAA-mannan grafting to form the cross-linked hydrogel matrix; (B) The mesoporous network of PAA and (C) PAA-mannan imaged by cryo-SEM (scale bar 20 µm).