Microfluidic channel for removing bubbles in fluid

摘要

A microfluidic channel for effectively removing a gas from a fluid, and microfluidic apparatus including the same are provided. The microfluidic channel includes a first channel having a uniform cross-sectional area, and a second channel connected to the first channel and having a gradually expanded cross-sectional area.

主权项

1. A microfluidic apparatus with a channel that removes bubbles from a fluid, the apparatus comprising:
a substrate with an axis of rotation; a first channel having an upper wall, a lower wall opposite the upper wall, and a uniform cross-sectional area, wherein the upper wall is nearer the axis of rotation than the lower wall; a second channel in fluid connection with the first channel, wherein the second channel has an upper wall extending from the upper wall of the first channel, a lower wall opposite the upper wall, and a cross-sectional area which increases in a flow direction away from the first channel; and a ventilation unit in fluid connection with the second channel, which extends outside the second channel from the terminal end of the upper wall of the second channel towards the axis of rotation.