BioMed Research International / 2014 / Article / Fig 2

Research Article

Collagen Scaffolds with Controlled Insulin Release and Controlled Pore Structure for Cartilage Tissue Engineering

Figure 2

SEM photomicrographs of control collagen scaffolds (a), (c) and collagen-microbead hybrid porous scaffolds (b), (d) at low (a), (b) and high (c), (d) magnifications. Yellow arrows represent the integrated insulin loaded PLGA microbeads in porous collagen matrix.
623805.fig.002a
(a)
623805.fig.002b
(b)
623805.fig.002c
(c)
623805.fig.002d
(d)