Figure 2
Surface morphology of the gels synthesized in (a) water (hydrogel-1), (b) 1:3 water–methanol (v v−1) mixtures (hydrogel-2) and (c) 1:1 water–methanol (v v−1) mixture (hydrogel-3).
Figure 2 | NPG Asia Materials
Surface morphology of the gels synthesized in (a) water (hydrogel-1), (b) 1:3 water–methanol (v v−1) mixtures (hydrogel-2) and (c) 1:1 water–methanol (v v−1) mixture (hydrogel-3).
