DESIGN CONCEPTS FOR PREVENTING GAS BUBBLE INTERFERENCE IN MICROFLUIDIC DEVICES
Keywords:
microfluidics, gas bubble removal, degassingAbstract
Unintendedly introduced gas bubbles in channels can significantly interfere with performance and behavior of microfluidic systems. Thus, there is a high demand for smart microfluidic system designs which are capable of preventing gas bubbles. In this work, we develop two different bubble interference preventing system designs:
a degasser device that actively removes gas bubbles from the liquid based on pressure driven gas permeation, and a passive micro channel design that provides a guiding mechanism based on the gas bubbles’ effort to minimize their surface energy. The effective performances of the devices are demonstrated.
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Copyright (c) 2017 Sebastian Richert, Oliver Peters, Vu Hoa Nguyen, Uwe Schnakenberg
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