Proliferation of human aortic endothelial cells on Nitinol thin films with varying hole sizes

Proliferation of human aortic endothelial cells on Nitinol thin films with varying hole sizes
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人主动脉内皮细胞在不同孔径的镍钛合金薄膜上的增殖

DOI:
10.1007/s10544-018-0267-7
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发表时间:
2018
影响因子:
2.8
通讯作者:
Carman, Gregory P.
Carman, Gregory P.
中科院分区:
工程技术3区
文献类型:
--
作者:
Wu, Ming Lun;Panduranga, Mohanchandra K.;Carman, Gregory P.

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在本文中,我们提出了微米大小的孔对人主动脉内皮细胞(HAECs)的增殖和生长的影响。在5 μm厚的溅射沉积镍钛合金薄膜上制作了由10 μm宽支柱隔开的方形微米尺寸孔(5、10、15、20和25 μm)。将HAEC接种到这些微图案化的膜上,并在30天后用荧光显微镜进行分析。捕获的图像用于量化核堆积密度、大小和纵横比。孔径为10 ~ 20 μm的膜细胞堆积密度最高,细胞核均在孔内。这产生了几何上规则的网格状细胞分布图案。与连续膜或更大尺寸孔上的纵横比相比,10-20 μm孔上的细胞核纵横比形状更圆。最后,25 μm大小的孔阻止了连续细胞单层的形成,表明细胞不能桥接的临界长度在20至25 μm之间。
In this paper, we present the effect of micron size holes on proliferation and growth of human aortic endothelial cells (HAECs). Square shaped micron size holes (5, 10, 15, 20 and 25 μm) separated by 10 μm wide struts are fabricated on 5 μm thick sputter deposited Nitinol films. HAECs are seeded onto these micropatterned films and analyzed after 30 days with fluorescence microscopy. Captured images are used to quantify the nucleus packing density, size, and aspect ratio. The films with holes ranging from 10 to 20 μm produce the highest cell packing densities with cell nucleus contained within the hole. This produces a geometrically regular grid like cellular distribution pattern. The cell nucleus aspect ratio on the 10–20 μm holes is more circular in shape when compared to aspect ratio on the continuous film or larger size holes. Finally, the 25 μm size holes prevented the formation of a continuous cell monolayer, suggesting the critical length that cells cannot bridge is between 20 to 25 μm.
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