首页> 外文期刊>Journal of Vacuum Science & Technology. B, Microelectronics and Nanometer Structures >Polymer cell culture substrates with combined nanotopographical patterns and micropatterned chemical domains
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Polymer cell culture substrates with combined nanotopographical patterns and micropatterned chemical domains

机译:具有组合的纳米形貌图案和微图案化化学域的聚合物细胞培养底物

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摘要

A combination of nanoimprint lithography and microcontact printing was used to create cell substrates with well-defined nanotopographic patterns of grooves overlaid with independently controlled micropatterned chemical domains. Qualitative analysis of osteoblast-like cells cultured on the substrates showed alignment of cells and cell features to the nanotopographic grooves when surface chemistry was either uniform or a pattern of dots. When surface chemistry on the substrate was a pattern of lanes, cells aligned to the lanes. On all substrates, small cellular extensions, or filopodia, displayed no particular alignment to either nanotopographic grooves or chemical patterns. Large cell extensions were observed only parallel to either nanotopographic grooves or chemical lanes. The techniques used provide an easily scaleable approach to creating cell substrates that will aid in studying the relative impact and interplay of chemical patterns and mechanical topography on cellular responses.
机译:纳米压印光刻技术和微接触印刷技术的结合被用于创建具有清晰定义的沟槽的纳米形貌图案的细胞基底,该图案上覆盖着独立控制的微图案化化学域。对基质上培养的成骨样细胞的定性分析表明,当表面化学均匀或呈点状分布时,细胞和细胞特征与纳米形貌凹槽对齐。当基材上的表面化学性质为泳道模式时,细胞与泳道对齐。在所有基底上,小的细胞延伸或丝状伪足均未显示出与纳米形貌凹槽或化学图案的特定对齐。观察到大细胞延伸仅平行于纳米形貌凹槽或化学泳道。所使用的技术提供了一种易于扩展的方法来创建细胞基质,这将有助于研究化学模式和机械形貌对细胞反应的相对影响和相互影响。

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