Figure 1
From: Biomaterial-based sponge for efficient and environmentally sound removal of bacteria from water
(a) Preparation of polycationic sponge materials by cryo-polymerization; (b) Image of prepared cryogel sponges in the swollen and dry state; (c) scanning electron microscopy (SEM) image of cryogel sponges and fluorescence microscopy image of a live (green)/dead (red) stained E. coli incubated chitosan cryogel.
