Figure 3.

SEM image of fabricated PEG structure with 2 wt% BDAB. [37] Reproduced with the permission of Ref. [37]. Copyright 2011, Elsevier.

SEM image of fabricated PEG structure with 2 wt% BDAB. [37] Reproduced with the permission of Ref. [37]. Copyright 2011, Elsevier.