Characterizing Adhesion between a Micropatterned Surface and a Soft Synthetic Tissue
Characterizing Adhesion between a Micropatterned Surface and a Soft Synthetic Tissue
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表征微图案表面和软合成组织之间的粘附力
DOI：
10.1021/acs.langmuir.6b03643
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发表时间：
2017
期刊：
影响因子：
3.9
通讯作者：
Rentschler, Mark E.
中科院分区：
文献类型：
--
作者：
Kern, Madalyn D.;Qi, Yuan;Long, Rong;Rentschler, Mark E.
粘附功和分离功是接触界面的特征性质，其分别描述了粘附或分离两个接触基底所需的每单位面积的能量的量。在这项工作中，作者提出了实验和数据分析程序，允许软合成组织和光滑或微图案化的聚（二甲基硅氧烷）（PDMS）基板之间的接触界面，其特征在于这些特征参数。由于物理几何形状的限制，本研究选择的实验接触几何形状不同于传统的测试几何形状。因此，作者使用有限元建模来开发针对本工作中使用的实验接触几何形状的校正因子。粘附功直接从实验数据中提取，而分离功则根据实验结果进行估算。将这些值与其他理论计算值进行比较以进行验证。这项工作的结果表明，微图案化的PDMS基板显着降低了粘附功和分离功相比，一个光滑的PDMS基板，当与软合成组织基板接触。
The work of adhesion and work of separation are characteristic properties of a contact interface that describe the amount of energy per unit area required to adhere or separate two contacting substrates, respectively. In this work, the authors present experimental and data analysis procedures that allow the contact interface between a soft synthetic tissue and a smooth or micropatterned poly(dimethylsiloxane) (PDMS) substrate to be characterized in terms of these characteristic parameters. Because of physical geometry limitations, the experimental contact geometry chosen for this study differs from conventional test geometries. Therefore, the authors used finite element modeling to develop correction factors specific to the experimental contact geometry used in this work. A work of adhesion was directly extracted from experimental data while the work of separation was estimated on the basis of experimental results. These values are compared to other theoretical calculations for validation. The results of this work indicate that the micropatterned PDMS substrate significantly decreases both the work of adhesion and work of separation as compared to a smooth PDMS substrate when in contact with a soft synthetic tissue substrate.