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- W2800553664 abstract "Porous microcarriers have aroused increasing attention recently, which can create a protected environment for sufficient cell seeding density, facilitate oxygen and nutrient transfer, and well support the cell attachment and growth. In this study, porous microcarriers fabricated from the strontium-substituted hydroxyapatite-graft-poly(γ-benzyl-l-glutamate) (Sr10-HA-g-PBLG) hybrid nanocomposite were developed. The surface grating of PBLG, the micromorphology and element distribution, mechanical strength, in vitro degradation, and Sr2+ ion release of the obtained Sr10-HA-g-PBLG porous microcarriers were investigated, respectively. The grafting ratio and the molecular weight of the grafted PBLG of Sr10-HA-g-PBLG could be effectively controlled by varying the initial ratio of BLG-NCA to Sr10-HA-NH2. The microcarriers exhibited a highly porous and interconnected microstructure with the porosity of about 90% and overall density of 1.03–1.06 g/cm3. Also, the degradation rate of Sr10-HA-PBLG microcarriers could be effectively controlled and long-term Sr2+ release was obtained. The Sr10-HA-PBLG microcarriers allowed cells adhesion, infiltration, and proliferation and promoted the osteogenic differentiation of rabbit adipose-derived stem cells (ADSCs). Successful healing of femoral bone defect was proved by injection of the ADSCs-seeded Sr10-HA-PBLG microcarriers in a rabbit model." @default.
- W2800553664 created "2018-05-17" @default.
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- W2800553664 date "2018-04-24" @default.
- W2800553664 modified "2023-10-14" @default.
- W2800553664 title "Nanocomposite Porous Microcarriers Based on Strontium-Substituted HA-<i>g</i>-Poly(γ-benzyl-<scp>l</scp>-glutamate) for Bone Tissue Engineering" @default.
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- W2800553664 doi "https://doi.org/10.1021/acsami.8b02448" @default.
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