Figure 3.
SEM images of membranes with ALP and Mg2+: (a) CHI:GEL (1:1), ALP, GA; (b) CHI:GEL (1:1), ALP, GA, 0.01% MgCl2; (c) CHI:GEL (1:1), ALP, GA, 0.1% MgCl2; and, (d) CHI:GEL (1:1), ALP, GA, 0.2% MgCl2. Scale bar: 50 µm.
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