Table 1.

Scaffold type abbreviations and descriptions

Abbreviation	Description
SC	flat films of spuncoat poly(ε-caprolactone) (PCL, relative molecular mass 80 000 g/mol);
SC+OS	flat films of spuncoat PCL with osteogenic supplements (OS, 10-nmol/L dexamethasone, 20-mmol/L β-glycerophosphate, 0.05-mmol/L L-ascorbic acid);
NF	electrospun PCL nanofibers (dia. 589 nm);
NF+OS	electrospun PCL nanofibers with OS;
MF	electrospun PCL microfibers (dia. 4.4 μm);
PPS	porous polystyrene scaffolds (Alvetex, pore size 36 μm to 40 μm, Reinnervate, Inc.);
MG	matrigel (reduced-growth factor Matrigel, BD Biosciences);
FG	fibrin gel (fibrinogen from human plasma (6 mg/mL) polymerized with thrombin from human plasma (25 U/mL), Sigma, Inc.);
CG	collagen gel (PureCol bovine type I collagen, Advanced BioMatrix);
CF	collagen fibrils prepared as described (Elliott et al. 2007)