Table 2: Summary of the growth factor, polymer used, and size of microspheres studies recently released.

PolymerGrowth factorFormation techniqueMicrosphere sizeReference

PEG-PLGA diblockBMP-2w/o/w37–67 μm[48]
PLGA/PLGA-PEG-PLGABMP-2w/o/w67–127 μm[61]
Gelatine cross-linked with genipinBMP-2w/oundisclosed[72]
Gelatine cross-linked with genipinBMP-2w/o2–6 μm
[52]
PLGABMP-2w/o/w100–150 μm[63]
PLGABMP-2w/o/wAverage of 50 μm[113]
PLGABMP-2w/o/wUndisclosed[114]
PLGAVEGFw/o/wUndisclosed[115]
PLGAVEGFw/o/w20–53 μm[116]
PLGAVEGF + FGF-2w/o/wundisclosed (fused microsphere bridge)[108]
PLGAVEGF + FGF-2s/o/wUndisclosed[67]
AlginateVEGFw/o/w300–400 μm[47]
PEG-CAM-PEGVEGF + BMP-2s/o/w5–30 μm[117]
PLGAVEGF, FGF-2,
VEGF + FGF-2
w/o/w~20–100 μm[65]
PLGAPDGFw/o/w7–31 μm[118] microsphere formation in [119]
PLGABMP-2 + TGFβUltrasound o/wUndisclosed (fused microsphere bridge)[120]
PLGALTB4w/o/w5–10 μm[107]
Hyaluronic acidBMP-2w/o/w710 nm–1.7 μm[121]
PLGABMP-2w/o/w120–470 μm[122]
P(TMC-CL)2-PEGBMP-6 + TGFβ3Electrospraying o/w~65-80 μm[51]
Gelatine cross-linked with glutaraldehydeVEGF + BMP-2w/o50–100 μm[70]
Silk fibroinBMP-2 BMP-9 or BMP-14Nanoprecipitation2.4–3 μm[58]
PLLABMP-2w/o35–55 nm[104]