Department of Micro- and Nanotechnology, Technical University of Denmark, DK-2800 Lyngby, Denmark.
Nano Lett. 2010 Mar 10;10(3):826-32. doi: 10.1021/nl903190q.
We present a method for making polymer chips with a narrow-band near-infrared absorber layer that enables light-induced local heating of liquids inside fluidic micro- and nanochannels fabricated by thermal imprint in polymethyl methacrylate. We have characterized the resulting liquid temperature profiles in microchannels using the temperature dependent fluorescence of the complex Ru(bpy)(3). We demonstrate thermophoretic manipulation of individual YOYO-1 stained T4 DNA molecules inside micro- and nanochannels.
我们提出了一种制作聚合物芯片的方法，该方法采用具有窄带近红外吸收层的聚合物芯片，可在聚甲基丙烯酸甲酯热压印制成的微纳流道内实现光诱导局部加热液体。我们使用复杂的[Ru（bpy）（3）]（2+）的温度依赖性荧光来描述微通道中产生的液体温度分布。我们在微纳通道内演示了单个 YOYO-1 染色的 T4 DNA 分子的热泳操纵。
