振蕩流動(dòng)對組織工程用灌注式生物反應(yīng)器中剪切力分布影響
[Abstract]:Aim to investigate the effects of oscillatory flow, pore size and porosity of three-dimensional scaffolds on the distribution of velocity and shear force in bioreactor. Based on the theoretical results, an optimized method for preparation of three-dimensional scaffold and perfusion bioreactor for acellular bone was put forward. Methods the three-dimensional acellular bone scaffolds for bone tissue engineering were simplified into isotropic porous media by means of a three-dimensional scaffold and an perfusion bioreactor, which were prepared earlier in the laboratory. The flow velocity and shear force distribution in the bioreactor were modeled theoretically. Results the velocity and Darcy shear force in porous scaffolds were consistent with each other under oscillatory flow. The difference of velocity and Darcy shear force at different radii was decreased, which was beneficial to uniform three-dimensional culture of seed cells in bone tissue engineering. The mean Darcy shear force could be increased by increasing the velocity of perfusion at the inlet, but the mean Darcy shear force could be significantly decreased by increasing the pore diameter or porosity of the scaffolds, which had little effect on the peak velocity of flow in the scaffolds. Increasing the oscillation frequency of inlet oscillatory flow can reduce the maximum peak velocity and the difference of velocity at different radii. Conclusion the suitable oscillating flow is easy to produce shear force for bone tissue engineering stem cells, and the results may provide theoretical guidance for optimizing the three-dimensional culture method of seed cells in bone tissue engineering.
【作者單位】: 武漢紡織大學(xué)環(huán)境工程學(xué)院;重慶大學(xué)生物工程學(xué)院國家"111計(jì)劃"基地;重慶大學(xué)生物流變科學(xué)與技術(shù)教育部重點(diǎn)實(shí)驗(yàn)室;
【基金】:中央高;究蒲袠I(yè)務(wù)費(fèi)(CDJZR 12238801)
【分類號】:R318.1
【參考文獻(xiàn)】
相關(guān)期刊論文 前2條
1 王貴學(xué),羅向東,歐陽克清,蔡紹皙,王遠(yuǎn)亮,吳云鵬,王曉軍,羅勤;剪切應(yīng)力對毛細(xì)血管內(nèi)皮細(xì)胞代謝的影響[J];生物物理學(xué)報(bào);1999年01期
2 孫曉江;戴\戎;謝幼專;湯亭亭;于志鋒;張書紅;;灌注型生物反應(yīng)器中流速對人骨髓間充質(zhì)干細(xì)胞增殖及成骨分化的影響[J];醫(yī)用生物力學(xué);2012年05期
【共引文獻(xiàn)】
相關(guān)期刊論文 前10條
1 胥成浩,王貴學(xué),蔡紹皙,蘇蘭,王遠(yuǎn)亮;兩種內(nèi)皮細(xì)胞分泌血管緊張素II的差異[J];重慶大學(xué)學(xué)報(bào)(自然科學(xué)版);2002年05期
2 劉真;王麗英;杜大江;;類成骨細(xì)胞在流體剪切應(yīng)力刺激下的生物學(xué)反應(yīng)[J];哈爾濱醫(yī)科大學(xué)學(xué)報(bào);2010年06期
3 徐世榮,龍勉,蔡紹皙;生物力學(xué)與組織工程實(shí)驗(yàn)室研究工作進(jìn)展[J];力學(xué)進(jìn)展;2000年02期
4 黃慶生;肖天霞;張鍵;魏彥杰;;內(nèi)皮素-1在均勻流中構(gòu)象改變的分子動(dòng)力學(xué)模擬[J];集成技術(shù);2014年02期
5 孫中洋;李東韜;趙學(xué)武;張舒;;成骨細(xì)胞鉀離子和鈣離子通道以外離子通道的研究進(jìn)展[J];解放軍醫(yī)學(xué)院學(xué)報(bào);2014年04期
6 尚針針;李欣;孫惠強(qiáng);賈可麗;;MC3T3-E1細(xì)胞流體剪切力敏感信號通路的基因芯片研究[J];華西口腔醫(yī)學(xué)雜志;2014年05期
7 王貴學(xué),蔡紹皙,歐陽克清,王遠(yuǎn)亮,吳云鵬;剪切流場中內(nèi)皮細(xì)胞膜張應(yīng)力累加效應(yīng)的實(shí)驗(yàn)研究-離體血管段長度與其蛋白質(zhì)代謝的相關(guān)性[J];生物物理學(xué)報(bào);1999年03期
8 王貴學(xué),蔡紹皙,歐陽克清,王遠(yuǎn)亮,吳云鵬;牛肺動(dòng)脈單層內(nèi)皮細(xì)胞長度與其血管緊張素II代謝的相關(guān)性[J];生物物理學(xué)報(bào);2000年02期
9 鄧小燕;管章委;劉萬錢;;流動(dòng)剪切應(yīng)力下體外培養(yǎng)人體滋養(yǎng)層細(xì)胞的遷移和β1整合素表達(dá)[J];醫(yī)用生物力學(xué);2008年06期
10 李薇,蔡紹皙,李勝富,Eva Finkeldei,蔡紹暉,楊華蓉;平行平板流動(dòng)裝置用于藥物對內(nèi)皮細(xì)胞功能影響的實(shí)驗(yàn)研究[J];中草藥;2001年02期
相關(guān)會(huì)議論文 前2條
1 管章委;劉萬錢;鄧小燕;;流動(dòng)剪切應(yīng)力對人滋養(yǎng)層細(xì)胞遷移和β1整合素表達(dá)的影響[A];中國生物醫(yī)學(xué)工程進(jìn)展——2007中國生物醫(yī)學(xué)工程聯(lián)合學(xué)術(shù)年會(huì)論文集(下冊)[C];2007年
2 王貴學(xué);羅詩遂;鄧小燕;;脂質(zhì)濃度極化現(xiàn)象與動(dòng)脈粥樣硬化血流動(dòng)力學(xué)成因探討[A];中國病理生理學(xué)會(huì)動(dòng)脈粥樣硬化專業(yè)委員會(huì)五屆一次會(huì)議論文集[C];2002年
相關(guān)博士學(xué)位論文 前5條
1 張e,
本文編號:2433875
本文鏈接:http://sikaile.net/yixuelunwen/swyx/2433875.html