期刊
JOURNAL OF MATERIALS CHEMISTRY B
卷 3, 期 6, 页码 968-976出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4tb01838a
关键词
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资金
- Natural Science Foundation of China [81171458, 81190132, 81371178]
- Science and Technology Commission of Shanghai Municipality [13NM1402102]
- Fund of the Shanghai Institute of Ceramics Chinese Academy of Sciences for Innovation of Science and Technology [Y26ZC1110G]
Patterned structured surfaces are very useful to control a cell's microenvironment and to modulate certain cellular responses, such as cell adhesion, migration, proliferation, and differentiation. Herein, ordered micropatterns constructed by a quadrate convex with different sizes were fabricated on a hydroxyapatite [Ca-10(PO4)(6)(OH)(2), HAp] bioceramic surface using an ordered micropatterned nylon sieve as templates. The height, width and space of the convex for the patterns could be facilely regulated via simply tailoring the meshes of the template. Compared with traditional samples with flat surfaces, the fabricated HAp bioceramics with micropatterned surfaces possessed better wettability and higher surface energy, which significantly promoted the adhesion, proliferation, and osteogenic differentiation of rat bone marrow stromal cells (bMSCs). Furthermore, using a pattern size close to that of the cell size showed a better stimulation of cell response compared with larger pattern sizes. Our study suggests that the fabrication of micropatterned structured HAp bioceramics is critical for designing optimal biomaterials for bone regeneration and cell culture substrate applications.
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