A Long-Acting BMP-2 Release System Based on Poly(3-hydroxybutyrate) Nanoparticles Modified by Amphiphilic Phospholipid for Osteogenic Differentiation

Table 2

Characterization of BPC-PHB NPs prepared using different BPCs and B-PHB NPs prepared using pure BMP-2 without phospholipids, respectively ().

Samples	Size (nm)	PDI	Zeta potential (mV)	EE (%)
PHB NPs	242.1 ± 5.2	0.125 ± 0.012	−25.21 ± 2.19	—
B-PHB NPs	251.4 ± 8.1	0.155 ± 0.015	−12.52 ± 1.54	12.53 ± 1.62
BPC-PHB NPs	253.4 ± 7.1	0.143 ± 0.018	−22.42 ± 2.14	77.18 ± 6.39