Micro-fluidics control with temperature-responsive surface shape memory material

在本研究中，我们利用交联聚己内酯的形状记忆特性，实现了新型微通道的开闭操作。形状记忆性能通过在模具形状图案化后由温度变化引起的恢复来评价。其结果是，形状存储在一个轻微的压力和恢复率几乎是100%。然后，通过使用微图案的流动路径被制备，并且使用局部加热装置研究通道操作。我们发现，方向的改变和通道的形成可以通过温度的变化来完成。

In this study, we realized the channel opening and closing operation of the new micro-channel using the shape memory properties of cross-linked polycaprolactone. Shape memory properties were evaluated by the recovery by temperature change after patterning of the mold shape. As a result, the shape is stored in a slight pressure and recovery ratio was almost 100%. Then, a flow path by using a micro-pattern was prepared and the passage operation was studied using the local heating device. We found that the change of direction and the formation of the channel can be done by only the temperature change.