期刊
CELLULOSE
卷 29, 期 3, 页码 1955-1967出版社
SPRINGER
DOI: 10.1007/s10570-021-04395-4
关键词
Cellulose; Three-dimensional; Polydopamine; Microsphere; Bone tissue engineering
资金
- Foundation of State Key Laboratory of Coal Combustion [FSKLCCA2109]
- Major Technological Innovation of Hubei Province of China [2018ABA093]
- Science and Technology Research Project of Education Department of Hubei Province [Q20181711]
- Wuhan Municipal Science and Technology Bureau [2017050304010277]
A novel scaffold material for bone tissue regeneration was prepared using deacetylated porous cellulose acetate microspheres modified with hydroxyapatite, and its physical and chemical properties were analyzed. The results showed that the material exhibited excellent performance in terms of cell attachment and proliferation, as well as in vitro mineralization.
Deacetylated porous cellulose acetate microspheres (DPCA) modified with hydroxyapatite (HA) penetrated polydopamine (PDA) coating was prepared by a one-step in-situ method and investigated as the scaffold for bone tissue regeneration. The physical and chemical properties of different scaffolds were analyzed by Scanning electron microscopy, Transmission electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction and X-ray photoelectron spectrum. Test results proved the unique three-dimensional porous structure, homogeneous PDA coating, dispersive HA crystals of the DPCA-PDA-HA microspheres (DPPH). The excellent attachment, adhesion and proliferation of MC3T3-E1 preosteoblast on DPPH were manifested by cell adhesion and biocompatibility assessment. In vitro mineralization also shown MC3T3-E1 was capable of differentiating osteogenically. Such satisfactory biomedical performance of DPPH was ascribed to the one-step introducing process contributing to a uniform and enrich growth of HA on the microspheres surface and interior. This study provides a promising cellulose-based scaffold applied in bone regeneration field. [GRAPHICS] .
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