| 摘要 |
A disk-like microfluidic structure includes a disk, and a plurality of microfluidic systems formed on the disk and covered by a top sealing layer. Each microfluidic system includes a first and a second supply chamber located near a geometrical center of the disk, and at least one receiving chamber communicably connected to the first and the second supply chambers via a first and a second microchannel, respectively. When the first and the second microchannels have different geometrical sizes and the disk is driven to spin, two fluids separately held in the first and the second supply chambers are centrifugally moved into the receiving chamber via the differently sized first and second microchannels at different speeds and in different quantities to generate in the receiving chamber a fluid mixture having a specific concentration. By changing the geometrical sizes of the first and second microchannels, different concentration fluid mixtures may be generated.
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