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- W3124595251 abstract "Abstract Progress in bone scaffold development relies on cost-intensive and hardly scalable animal studies. In contrast to in vivo, in vitro studies are often conducted in the absence of dynamic compression. Here, we present an in vitro dynamic compression bioreactor approach to monitor bone formation in scaffolds under cyclic loading. A biopolymer was processed into mechanically competent bone scaffolds that incorporate a high-volume content of ultrasonically treated hydroxyapatite or a mixture with barium titanate nanoparticles. After seeding with human bone marrow stromal cells, time-lapsed imaging of scaffolds in bioreactors revealed increased bone formation in hydroxyapatite scaffolds under cyclic loading. This stimulatory effect was even more pronounced in scaffolds containing a mixture of barium titanate and hydroxyapatite and corroborated by immunohistological staining. Therefore, by combining mechanical loading and time-lapsed imaging, this in vitro bioreactor strategy may potentially accelerate development of engineered bone scaffolds and reduce the use of animals for experimentation." @default.
- W3124595251 created "2021-02-01" @default.
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- W3124595251 date "2021-01-25" @default.
- W3124595251 modified "2023-10-12" @default.
- W3124595251 title "Time-lapsed imaging of nanocomposite scaffolds reveals increased bone formation in dynamic compression bioreactors" @default.
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- W3124595251 doi "https://doi.org/10.1038/s42003-020-01635-4" @default.
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