Institute of Microelectronics, Agency for Science Technology and Research, 11 Science Park Road, Singapore Science Park 2, Singapore 117685, Singapore.
Lab Chip. 2013 Sep 21;13(18):3663-7. doi: 10.1039/c3lc50274k.
We present a three-dimensional (3D) micro-traps array for size selective sorting and patterning of microbeads via evaporation-driven capillary flow. The interconnected micro-traps array was manufactured by silicon micromachining. Microliters of aqueous solution containing particle mixtures of different sized (0.2 to 20 μm diameter) beads were dispensed onto the micro-traps substrate. The smaller particles spontaneously wicked towards the periphery of the chip, while the larger beads were orderly docked within the micro-traps array.
我们提出了一种三维（3D）微阱阵列，用于通过蒸发驱动的毛细流动对微珠进行尺寸选择性分选和图案化。互连的微阱阵列是通过硅微加工制造的。将含有不同尺寸（0.2 至 20μm 直径）微珠的颗粒混合物的微升水溶液分配到微阱基底上。较小的颗粒会自发地向芯片的外围移动，而较大的珠子则会有序地停靠在微阱阵列中。
