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Photomicrographs of 3-D pure BG (a, b) and BG composite (c, d) scaffolds created by different processing methods: solid freeform fabrication (a), polymer foam replication (b), electrospinning (c), gelification/lyophilization (d). [Reprinted with permission from: Ref 35, Copyright 2011 John Wiley and Sons (a); Ref 40, Copyright 2012 Elsevier (b); Ref 58, Copyright 2012 Springer (c); Ref 51, Copyright 2012 Elsevier (d)].
